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Mikkola, Jyri-Pekka
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Publications (10 of 332) Show all publications
Sarmad, S., Nikjoo, D. & Mikkola, J.-P. (2025). Innovative CO2 capture technologies: Exploring the potential of porous liquids containing deep eutectic solvents and hypercrosslinked polymers. Separation and Purification Technology, 352, Article ID 128189.
Open this publication in new window or tab >>Innovative CO2 capture technologies: Exploring the potential of porous liquids containing deep eutectic solvents and hypercrosslinked polymers
2025 (English)In: Separation and Purification Technology, ISSN 1383-5866, E-ISSN 1873-3794, Vol. 352, article id 128189Article in journal (Refereed) Published
Abstract [en]

The current study presented a porous liquid (PL) prepared from propylene glycol-based deep eutectic solvent (DES) and hyper-crosslinked polymers (HCP) that are liquids over wide temperature ranges, including ambient temperature. It was shown that the solvent molecules are too large to penetrate the pores of HCP, so the PL is maintained as a suspension with permanent free volume for several months and can absorb large amounts of gases. This study marks the pioneering use of DESs as the liquid medium, replacing ionic liquids due to their closely matched properties. The structural features of both DES and HCP are retained; the increase in CO2 absorption capacity compared to pure DES is due to the presence of a porous solid and is proportional to the amount of solid. The absorbed CO2 amount rises from 1.0105 mmol·g−1 in pure DES to 1.3232, 1.6027, and 1.2168 mmol·g−1 in PL-1, PL-2, and PL-3, respectively. Thermodynamic analysis revealed that the enthalpy of gas absorption allows straightforward regeneration of the PLs in the studied cases. The investigated PLs show great potential as gas absorbents, with the incorporation of just 0.5 wt% of porous polymer material leading to an impressive increase in solvent absorption capacity, up to 59 %.

Place, publisher, year, edition, pages
Elsevier, 2025
Keywords
CO2 capture, Deep eutectic solvent, Hypercrosslinked polymers, Porous liquids, Propylene glycol
National Category
Analytical Chemistry
Identifiers
urn:nbn:se:umu:diva-225935 (URN)10.1016/j.seppur.2024.128189 (DOI)2-s2.0-85194943480 (Scopus ID)
Available from: 2024-06-12 Created: 2024-06-12 Last updated: 2024-06-12Bibliographically approved
Dotto, G. L., Pinto, D., Silva, L. F., Grimm, A., Khan, M. R., Ahmad, N., . . . dos Reis, G. S. (2024). Adsorption of rare earth elements (Ce3+, La3+, and Nd3+) and recovery from phosphogypsum leachate using a novel ZSM-5 zeolite. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 698, Article ID 134549.
Open this publication in new window or tab >>Adsorption of rare earth elements (Ce3+, La3+, and Nd3+) and recovery from phosphogypsum leachate using a novel ZSM-5 zeolite
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2024 (English)In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, ISSN 0927-7757, E-ISSN 1873-4359, Vol. 698, article id 134549Article in journal (Refereed) Published
Abstract [en]

ZSM-5 zeolite is a multifunctional material highly efficient for adsorbing ions. Our ZSM-5 was synthesized by employing a nucleating gel as a structure-directing agent, followed by homogenization and hydrothermal treatment. The as-prepared ZSM-5 was physicochemically characterized to assess its properties. Next, the as-prepared zeolite was employed as an adsorbent to remove rare earth elements, REEs from synthetic solutions and real phosphogypsum leachate under batch mode operation. As expected, the ZSM-5 adsorbent was discovered to be highly microporous with abundant surface functionalities, which could positively impact REE adsorption. The adsorption data indicated a high affinity between ZSM-5 and all three REEs with rapid kinetics and high adsorption capacities. The modeling study suggested that the adsorption kinetic data were well fitted by Avrami-fractional order, and Liu described the equilibrium data. The maximum adsorption capacity for Ce3+, La3+, and Nd3+ were 99.42 mg g−1, 96.43 mg g−1, 118.10 mg g−1, respectively. Further, the thermodynamic analysis revealed that the interaction between ZSM-5 and Ce3+, La3+, and Nd3+ was favorable, spontaneous, and endothermic. The efficiency of ZSM-5 adsorbent was also studied in recovering several REEs from leachate of phosphogypsum wastes, and the data results proved its potency to do so. The findings reported in this work support the idea that ZSM-5 can be successfully used as an adsorbent to recover REEs from synthetic and real samples.

Place, publisher, year, edition, pages
Elsevier, 2024
Keywords
Adsorption of rare earth elements, Ion-exchange mechanism, Microporous zeolite
National Category
Chemical Process Engineering
Identifiers
urn:nbn:se:umu:diva-227590 (URN)10.1016/j.colsurfa.2024.134549 (DOI)2-s2.0-85196855366 (Scopus ID)
Funder
Swedish Research Council Formas, 2021–00877Bio4Energy
Available from: 2024-07-01 Created: 2024-07-01 Last updated: 2024-07-01Bibliographically approved
Järvinen, T., Vucetic, N., Palvölgyi, P., Pitkänen, O., Siponkoski, T., Cabaud, H., . . . Kordas, K. (2024). An energy harvester based on UV-polymerized short-alkyl-chain-modified [DBU][TFSI] ionic liquid electrets. Journal of Materials Chemistry A, 12(3), 1746-1752
Open this publication in new window or tab >>An energy harvester based on UV-polymerized short-alkyl-chain-modified [DBU][TFSI] ionic liquid electrets
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2024 (English)In: Journal of Materials Chemistry A, ISSN 2050-7488, E-ISSN 2050-7496, Vol. 12, no 3, p. 1746-1752Article in journal (Refereed) Published
Abstract [en]

Three short-alkyl-chain-modified [DBU][TFSI] ionic liquids (ILs) were synthesized and utilized in electrets. The electrets were prepared by mixing a UV-curable polymer with the ionic liquids followed by polymerization while applying an external electric field, thus forming spatially separated anions and cations in the proximity of opposing surfaces of the composite slabs. The immobilized surplus surface charge was measured by periodically engaging the electret with a metal counter electrode plate and detecting the displacement current using a charge amplifier. The results show that electrets based on polymerized [DBU][TFSI] ILs have a separated surface charge density of up to 64 nC × cm−2, which equals an energy harvesting density of 7.0 nJ × cm−2. Control measurements repeated after a few days to assess the stability and reproducibility of the systems showed that while charge separation reverses over time to some extent, the polymerized ionic liquid samples are resilient to exposure to atmospheric conditions and could be utilized in this type of energy harvesting scheme.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2024
National Category
Materials Chemistry
Identifiers
urn:nbn:se:umu:diva-219085 (URN)10.1039/d3ta05448a (DOI)001127125400001 ()2-s2.0-85180460032 (Scopus ID)
Funder
Academy of Finland, 325185
Available from: 2024-01-11 Created: 2024-01-11 Last updated: 2024-04-19Bibliographically approved
Laisné, E., Thivet, J., Manavalan, G., Petnikota, S., Mikkola, J.-P., Thyrel, M., . . . dos Reis, G. S. (2024). Box-Behnken design for the synthesis optimization of mesoporous sulfur-doped carbon-based materials from birch waste: promising candidates for environmental and energy storage application. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 692, Article ID 133899.
Open this publication in new window or tab >>Box-Behnken design for the synthesis optimization of mesoporous sulfur-doped carbon-based materials from birch waste: promising candidates for environmental and energy storage application
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2024 (English)In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, ISSN 0927-7757, E-ISSN 1873-4359, Vol. 692, article id 133899Article in journal (Refereed) Published
Abstract [en]

The development of biomass-based carbon materials has accelerated the research interest in environmental (e.g., adsorbents for wastewater decontamination) and energy applications (e.g., batteries). In this paper, we developed a series of carbon materials (CMs) using a sulfur doping strategy to improve the physicochemical, adsorptive and energy storage properties of the aforementioned CMs. CMs were prepared and optimized using an experimental design denoted as the Box-Behnken design approach with three independent factors (i.e., the temperature of pyrolysis, zinc chloride: biomass ratio and sulfur: biomass ratio), and the responses were evaluated, namely the Specific Surface Area (SBET), mesopore area (AMeso) and micropore area (AMicro) with the help of Nitrogen Physisorption. According to the statistical analysis, under the studied conditions, the responses were mainly influenced by the pyrolysis temperature and ZnCl2 ratio, while the sulfur content did not give rise to any remarkable differences in the selected responses. The physicochemical characterization of the CMs suggested that very high Specific Surface Areas ranging from 1069 to 1925 m2 g−1 were obtained. The sulfur doping resulted in up to 7.33wt.% of sulfur in the CM structure, which yielded CMs with more defects and hydrophilic surfaces. When tested as adsorbents, CMs exhibited a very high adsorption capacity (190 – 356mgg-1), and as anodes, they demonstrated a competitive Lithium Ion Battery (LIB) storage capacity, at least during the first five cycles (306 mAhg-1 at 1C for CM9). However, further studies on long-term cyclability are required to prove the CM materials suitability in LIBs. This work extends our understanding of how pyrolysis and sulfur doping of biomass feedstock affects carbon materials' usability, final characteristics and potential to use in wastewater decontamination by adsorption and as anodes in LIBs.

Place, publisher, year, edition, pages
Elsevier, 2024
Keywords
Birch residues, sulfur doping, sulfur-doped carbons, adsorption of sodium diclofenac, lithium ion battery
National Category
Materials Chemistry
Identifiers
urn:nbn:se:umu:diva-223024 (URN)10.1016/j.colsurfa.2024.133899 (DOI)2-s2.0-85190141495 (Scopus ID)
Funder
Bio4EnergySwedish University of Agricultural SciencesThe Kempe FoundationsKnut and Alice Wallenberg FoundationEU, European Research Council, 20357605
Available from: 2024-04-08 Created: 2024-04-08 Last updated: 2024-04-23Bibliographically approved
Pitkänen, O., Vucetic, N., Cabaud, H., Bozo, E., Järvinen, T., Mikkola, J.-P. & Kordas, K. (2024). Evaluation of short alkyl chain modified [DBU][TFSI] based ionic liquids as supercapacitor electrolytes. Electrochimica Acta, 475, Article ID 143659.
Open this publication in new window or tab >>Evaluation of short alkyl chain modified [DBU][TFSI] based ionic liquids as supercapacitor electrolytes
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2024 (English)In: Electrochimica Acta, ISSN 0013-4686, E-ISSN 1873-3859, Vol. 475, article id 143659Article in journal (Refereed) Published
Abstract [en]

The need of new electrolytes with wide electrochemical window, good stability and conductivity has promoted novel ionic liquids (ILs) as new solutions for supercapacitors. In this work, four hydrophobic room temperature ionic liquids based on organic superbase-derived cations and Trifluoromethanesulfonimide (TFSI) anion were synthetized. The structures of the novel ILs were analyzed, characterized and their performance as a supercapacitor electrolyte was evaluated. The ILs have high decomposition temperatures of up to 490 °C and electrochemical window up to 4.8 V. It was found that there was an optimal chemical structure providing the best stability and operational potential window coupled with moderate conductivity. The IL with the shortest alkyl chain structure provided the highest conductivity but suffered from instability. The performance of the ILs with longer alkyl chains was hindered by lower conductivities and, in the case of the largest chemical structures, also by reduced cyclic stabilities in open air. However, the ionic liquid with moderate alkyl chain length was found to be stable even in open air providing decent conductivity, which can be utilized in future research to develop other hydrophobic ionic liquids suitable as supercapacitor electrolytes.

Place, publisher, year, edition, pages
Elsevier, 2024
Keywords
DBU, Electrolyte, Ionic liquids, Room temperature, Supercapacitors, TFSI
National Category
Inorganic Chemistry
Identifiers
urn:nbn:se:umu:diva-218878 (URN)10.1016/j.electacta.2023.143659 (DOI)2-s2.0-85180477099 (Scopus ID)
Funder
Academy of Finland, 325185
Available from: 2024-01-04 Created: 2024-01-04 Last updated: 2024-01-04Bibliographically approved
Mariyaselvakumar, M., Kadam, G. G., Saha, A., Samikannu, A., Mikkola, J.-P., Ganguly, B., . . . Konwar, L. J. (2024). Halogenated melamine formaldehyde polymers: Efficient, robust and cost-effective bifunctional catalysts for continuous production of cyclic carbonates via. CO2-epoxide cycloaddition. Applied Catalysis A: General, 675, Article ID 119634.
Open this publication in new window or tab >>Halogenated melamine formaldehyde polymers: Efficient, robust and cost-effective bifunctional catalysts for continuous production of cyclic carbonates via. CO2-epoxide cycloaddition
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2024 (English)In: Applied Catalysis A: General, ISSN 0926-860X, E-ISSN 1873-3875, Vol. 675, article id 119634Article in journal (Refereed) Published
Abstract [en]

Halogenated porous melamine polymers were demonstrated as an efficient catalyst for CO2-epoxide cycloaddition, selectively (>99%) producing C3-C12 cyclic carbonates in excellent yields (upto 99%) under solvent and co-catalyst free conditions. The halogenated polymers outperformed benchmark catalysts incorporating only basic (N-doped carbon, ZIF-8, N-rich melamine polymer) or nucleophilic (TBAB, KI) sites. The superior catalytic performance of these inexpensive polymers was attributed to their unique surface chemistry incorporating abundant, stable basic N sites (amine N and protonated N) and nucleophilic (Cl-, Br- or I-) that enabled simultaneous activation of both epoxide and CO2 molecule (supported by kinetic and DFT studies). Further, among halogenated polymers a Br- containing material (PMFBr) presented highest activity owing to its balanced CO2-philicity and strong nucleophilicity. Most importantly, PMFBr was robust, reusable and maintained stable performance for continuous production of C3-C4 cyclic carbonate (120 oC, 0.3-0.83 h-1 WHSVepoxide and 15 bar) in a fixed-bed reactor during 60-190 h TOS.

Place, publisher, year, edition, pages
Elsevier, 2024
Keywords
CO2 utilization, Cyclic carbonate, Bifunctional catalyst, Continuous cyclic carbonate synthesis, Porous melamine formaldehyde polymer, DFT
National Category
Chemical Sciences
Identifiers
urn:nbn:se:umu:diva-221358 (URN)10.1016/j.apcata.2024.119634 (DOI)2-s2.0-85186488606 (Scopus ID)
Available from: 2024-02-21 Created: 2024-02-21 Last updated: 2024-03-13Bibliographically approved
Grimm, A., dos Reis, G. S., Dinh, V. M., Larsson, S. H., Mikkola, J.-P., Lima, E. C. & Xiong, S. (2024). Hardwood spent mushroom substrate–based activated biochar as a sustainable bioresource for removal of emerging pollutants from wastewater. Biomass Conversion and Biorefinery, 14, 2293-2309
Open this publication in new window or tab >>Hardwood spent mushroom substrate–based activated biochar as a sustainable bioresource for removal of emerging pollutants from wastewater
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2024 (English)In: Biomass Conversion and Biorefinery, ISSN 2190-6815, E-ISSN 2190-6823, Vol. 14, p. 2293-2309Article in journal (Refereed) Published
Abstract [en]

Hardwood spent mushroom substrate was employed as a carbon precursor to prepare activated biochars using phosphoric acid (H3PO4) as chemical activator. The activation process was carried out using an impregnation ratio of 1 precursor:2 H3PO4; pyrolysis temperatures of 700, 800, and 900 °C; heating rate of 10 °C min−1; and treatment time of 1 h. The specific surface area (SSA) of the biochars reached 975, 1031, and 1215 m2 g−1 for the samples pyrolyzed at 700, 800, and 900 °C, respectively. The percentage of mesopores in their structures was 75.4%, 78.5%, and 82.3% for the samples pyrolyzed at 700, 800, and 900 °C, respectively. Chemical characterization of the biochars indicated disordered carbon structures with the presence of oxygen and phosphorous functional groups on their surfaces. The biochars were successfully tested to adsorb acetaminophen and treat two simulated pharmaceutical effluents composed of organic and inorganic compounds. The kinetic data from adsorption of acetaminophen were fitted to the Avrami fractional-order model, and the equilibrium data was well represented by the Liu isotherm model, attaining a maximum adsorption capacity of 236.8 mg g−1 for the biochar produced at 900 °C. The adsorption process suggests that the pore-filling mechanism mainly dominates the acetaminophen removal, although van der Walls forces are also involved. The biochar produced at 900 °C removed up to 84.7% of the contaminants in the simulated effluents. Regeneration tests using 0.1 M NaOH + 20% EtOH as eluent showed that the biochars could be reused; however, the adsorption capacity was reduced by approximately 50% after three adsorption–desorption cycles.

Place, publisher, year, edition, pages
Springer, 2024
Keywords
Acetaminophen adsorption, Biochars, Hardwood spent mushroom substrate, Pharmaceutical effluents, Phosphoric acid activation, Pore-filling mechanism
National Category
Environmental Sciences
Identifiers
urn:nbn:se:umu:diva-193812 (URN)10.1007/s13399-022-02618-7 (DOI)000777383500002 ()2-s2.0-85127566365 (Scopus ID)
Funder
VinnovaSwedish Energy AgencySwedish Research Council Formas, 2021–00877
Available from: 2022-05-06 Created: 2022-05-06 Last updated: 2024-04-30Bibliographically approved
Dinh, V. M., Khokarale, S. G., Ojeda-May, P., Sparrman, T., Irgum, K. & Mikkola, J.-P. (2024). Ionic liquid strategy for chitosan production from chitin and molecular insights. RSC Sustainability, 2(4), 1154-1164
Open this publication in new window or tab >>Ionic liquid strategy for chitosan production from chitin and molecular insights
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2024 (English)In: RSC Sustainability, E-ISSN 2753-8125, Vol. 2, no 4, p. 1154-1164Article in journal (Refereed) Published
Abstract [en]

To produce chitosan is an interesting research. Chitosan is an important polysaccharide in terms of its various applications in industries and is produced from chitin, an abundant biopolymer in crustacean shell biomass wastes. Traditional processes for chitosan manufacture are commonly based on highly concentrated alkaline or acid solutions which are, however, severely eroding and harmful to the environment. In this study, we have described a ‘greener’ method using 1-ethyl-3-methylimidazolium acetate, [Emim][OAc] ionic liquid (IL), for decrystallization of shrimp crystalline chitin flakes followed by a microwave-mediated NaOH or tetrabutylammonium hydroxide, [TBA][OH], solution-based deacetylation for chitosan production. The decrease in crystallinity in IL pre-treated chitin was confirmed by XRD and SEM analysis which subsequently benefited chitosan production with up to 85% degree of deacetylation (%DDA) in shorter time periods (1-2 hours) and lower alkaline concentrations (20-40%). The %DDA in chitin/chitosan was estimated via FT-IR and NMR analysis. Notably, we could regenerate the ionic liquids: in case of [Emim][OAc] 97 wt.% and in case of [TBA][OH] 83 wt.% could be reused. Roles of ionic liquids in the process were discussed. Molecular dynamics (MD) simulations showed the roles of [TBA]+ cations in the molecular driving forces of [TBA][OH]-induced deacetylation mechanism. The strategy promises a sustainable and milder reaction approach to the existing highly corrosive alkaline- or acid-involved processes for chitosan production.

Place, publisher, year, edition, pages
Royal Society of Medicine Press, 2024
National Category
Chemical Sciences
Research subject
sustainability
Identifiers
urn:nbn:se:umu:diva-222314 (URN)10.1039/d4su00053f (DOI)2-s2.0-85189679118 (Scopus ID)
Available from: 2024-03-13 Created: 2024-03-13 Last updated: 2024-07-02Bibliographically approved
Adeniyi, O., Osmanaj, B., Manavalan, G., Mikkola, J.-P., Berisha, A. & Tesfalidet, S. (2024). Reagentless impedimetric immunosensor for monitoring of methotrexate in human blood serum using multiwalled carbon nanotube@polypyrrole/polytyramine film electrode. Talanta: The International Journal of Pure and Applied Analytical Chemistry, 268(Part 1), Article ID 125316.
Open this publication in new window or tab >>Reagentless impedimetric immunosensor for monitoring of methotrexate in human blood serum using multiwalled carbon nanotube@polypyrrole/polytyramine film electrode
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2024 (English)In: Talanta: The International Journal of Pure and Applied Analytical Chemistry, ISSN 0039-9140, E-ISSN 1873-3573, Vol. 268, no Part 1, article id 125316Article in journal (Refereed) Published
Abstract [en]

Ensuring effective monitoring of methotrexate (MTX) levels in the bloodstream of cancer patients undergoing high-dose methotrexate chemotherapy is crucial to prevent potentially harmful side effects. However, the absence of portable analytical devices suitable for point-of-care bedside monitoring has presented a significant obstacle to achieving real-time MTX monitoring. In this study, we developed an impedimetric immunosensor that doesn't require reagents for measuring MTX levels in undiluted human blood serum. This reagentless approach simplifies the assay process, enabling rapid and straightforward MTX quantification. The immunosensor transducer was fabricated by electrodepositing conductive network of porous multiwalled carbon nanotube@polypyrrole/polytyramine on screen-printed gold microchip electrode (SP–Au/MWCNT70@PPy-PTA). Polyclonal anti-MTX antibodies were immobilized on the film, acting as the immunorecognition element. Non-specific binding was prevented by blocking the transducer interface with denatured bovine serum albumin (dBSA) fibrils, resulting in SP-Au/MWCNT70@PPy-PTA/anti-MTXAb|dBSA film electrode. When MTX binds to the SP-Au/MWCNT70@PPy-PTA/anti-MTXAb|dBSA interface, the film conductance and electron transfer resistance changes. This conductivity attenuation allows for electrochemical impedimetric signal transduction without a redox-probe solution. The electrochemical impedance spectroscopy (EIS) results showed increased charge transfer resistance and phase angle as MTX concentrations increased. The SP-Au/MWCNT70@PPy-PTA/anti-MTXAb|dBSA demonstrated high sensitivity, with a linear response from 0.02 to 20.0 μM and a detection limit of 1.93 nM. The detection limit was 50 times lower than the intended safe level of MTX in human serum. The immunosensor exhibited minimal cross-reactivity with endogenous MTX analogs and serum proteins. The SP-Au/MWCNT70@PPy-PTA/anti-MTXAb|dBSA immunosensor presents a simple and rapid method for therapeutic drug monitoring compared to traditional immunoassay systems.

Place, publisher, year, edition, pages
Elsevier, 2024
Keywords
Therapeutic drug monitoring, Methotrexate, Reagentless sensor, Electrochemical impedance spectroscopy, Carbon nanotube network
National Category
Analytical Chemistry
Identifiers
urn:nbn:se:umu:diva-215536 (URN)10.1016/j.talanta.2023.125316 (DOI)2-s2.0-85174487495 (Scopus ID)
Funder
The Kempe Foundations
Available from: 2023-10-20 Created: 2023-10-20 Last updated: 2023-11-06Bibliographically approved
dos Reis, G. S., de Oliveira, H. P., Candido, I. C., Freire, A. L., Molaiyan, P., Dotto, G. L., . . . Mikkola, J.-P. (2024). Supercapacitors and triboelectric nanogenerators based on electrodes of greener iron nanoparticles/carbon nanotubes composites. Scientific Reports, 14(1), Article ID 11555.
Open this publication in new window or tab >>Supercapacitors and triboelectric nanogenerators based on electrodes of greener iron nanoparticles/carbon nanotubes composites
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2024 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 14, no 1, article id 11555Article in journal (Refereed) Published
Abstract [en]

The development of supporting materials based on carbon nanotubes (CNTs) impregnated with iron nanoparticles via a sustainable and green synthesis employing plant extract of Punica granatum L. leaves was carried out for the iron nanoparticle modification and the following impregnation into the carbon nanotubes composites (CNT-Fe) that were also coated with polypyrrole (CNT-Fe + PPy) for use as electrode for supercapacitor and triboelectric nanogenerators. The electrochemical characterization of the materials by cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) assays revealed that the CNT-Fe + PPy gave rise to better performance due to the association of double-layer capacitance behavior of carbon derivative in association with the pseudocapacitance contribution of PPy resulting in an areal capacitance value 202 mF/ cm2 for the overall composite. In terms of the application of electrodes in triboelectric nanogenerators, the best performance for the composite of CNT-Fe + PPy was 60 V for output voltage and power density of 6 μW/cm2. The integrated system showed that the supercapacitors can be charged directly by the nanogenerator from 0 to 42 mV in 300 s. The successful green synthesis of iron nanoparticles on CNT and further PPy coating provides a feasible method for the design and synthesis of high-performance SCs and TENGs electrode materials. This work provides a systematic approach that moves the research front forward by generating data that underpins further research in self-powered electronic devices.

Place, publisher, year, edition, pages
Springer Nature, 2024
Keywords
Energy harvesting and storage, Flexible electrodes, Green synthesis, Iron nanoparticles
National Category
Materials Chemistry
Identifiers
urn:nbn:se:umu:diva-225329 (URN)10.1038/s41598-024-61173-5 (DOI)38773205 (PubMedID)2-s2.0-85193575899 (Scopus ID)
Funder
Bio4EnergyInterreg, 20361711Swedish Research Council Formas, 2021–00877The Kempe Foundations, JCSMK23-0145
Available from: 2024-06-04 Created: 2024-06-04 Last updated: 2024-06-04Bibliographically approved
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