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Talyzin, Aleksandr V.ORCID iD iconorcid.org/0000-0002-3320-8487
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Publikasjoner (10 av 120) Visa alla publikasjoner
Iakunkov, A., Nordenström, A., Boulanger, N., Li, G., Hennig, C., Jørgensen, M. R., . . . Talyzin, A. V. (2024). Effect of chain length on swelling transitions of Brodie graphite oxide in liquid 1-alcohols. Advanced Materials Interfaces, 11(1), Article ID 2300554.
Åpne denne publikasjonen i ny fane eller vindu >>Effect of chain length on swelling transitions of Brodie graphite oxide in liquid 1-alcohols
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2024 (engelsk)Inngår i: Advanced Materials Interfaces, ISSN 2196-7350, Vol. 11, nr 1, artikkel-id 2300554Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Swelling is the most fundamental property of graphite oxides (GO). Here, a structural study of Brodie graphite oxide (BGO) swelling in a set of long chain 1-alcohols (named C11 to C22 according to the number of carbons) performed using synchrotron radiation X-ray diffraction at elevated temperatures is reported. Even the longest of tested alcohols (C22) is found to intercalate BGO with enormous expansion of the interlayer distance from ≈6Å up to ≈63Å, the highest expansion of GO lattice ever reported. Swelling transitions from low temperature α-phase to high temperature β-phase are found for BGO in all alcohols in the C11–C22 set. The transitions correspond to decrease of inter-layer distance correlating with the length of alcohol molecules, and change in their orientation from perpendicular to GO planes to layered parallel to GO (Type II transitions). These transitions are very different compared to BGO swelling transitions (Type I) found in smaller alcohols and related to insertion/de-insertion of additional layer of alcohol parallel to GO. Analysis of general trends in the whole set of 1-alcohols (C1 to C22) shows that the 1-alcohol chain length defines the type of swelling transition with Type I found for alcohols with C<10 and Type II for C>10. 

sted, utgiver, år, opplag, sider
Wiley-VCH Verlagsgesellschaft, 2024
Emneord
alcohols, graphene, graphene oxide, swelling, X-ray diffraction
HSV kategori
Identifikatorer
urn:nbn:se:umu:diva-214114 (URN)10.1002/admi.202300554 (DOI)001085318300001 ()2-s2.0-85174293807 (Scopus ID)
Forskningsfinansiär
EU, Horizon 2020, 881603Swedish Energy Agency, 50620‐1Swedish Research Council, 2018‐07152Vinnova, 2018‐04969Swedish Research Council Formas, 2019‐02496
Merknad

Originally included in thesis in manuscript form. 

This article also appears in: Advanced Materials Interfaces Editors' Choice.

Tilgjengelig fra: 2023-09-05 Laget: 2023-09-05 Sist oppdatert: 2024-01-11bibliografisk kontrollert
Gurzęda, B., Boulanger, N., Jørgensen, M. R. .., Kantor, I. & Talyzin, A. V. (2024). Graphite oxide by “chlorate route” oxidation without HNO3: Does acid matter?. Carbon, 221, Article ID 118899.
Åpne denne publikasjonen i ny fane eller vindu >>Graphite oxide by “chlorate route” oxidation without HNO3: Does acid matter?
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2024 (engelsk)Inngår i: Carbon, ISSN 0008-6223, E-ISSN 1873-3891, Vol. 221, artikkel-id 118899Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Very strong difference in many properties is well documented for graphite oxides (GtO) synthesized by Brodie (BGO) and Hummers (HGO) methods. The difference is typically assigned to the type of oxidant (chlorates or KMnO4, respectively). However, not only oxidants but also acids used in these methods are different. It is still unclear which of the different properties of GtO are dependent on the oxidant or acid used in the synthesis. Here we synthesized a new type of graphite oxide using an oxidation agent typical for the Brodie method (KClO3) in combination with acids so far used only in modified Hummers' method (H2SO4+H3PO4). The GtO synthesized by this method (MGO) demonstrates some properties similar to BGO (higher temperature of exfoliation and less defected structure) but also similarity to some other properties of HGO (absence of sharp swelling transitions). Comparing MGO, BGO, and HGO allows us to distinguish the effects of acids and oxidants on the properties of graphite oxides. The new procedure proposed in this study allows preparation of GtO nearly free from hole/vacancy defects (similarly to BGO) but avoids dangerous HNO3. MGO is suggested as a favorable precursor for the preparation of graphene films by thermal or chemical reduction methods.

Emneord
Chemical oxidation, Graphene oxide, Graphite, Graphite oxide, Swelling
HSV kategori
Identifikatorer
urn:nbn:se:umu:diva-221389 (URN)10.1016/j.carbon.2024.118899 (DOI)2-s2.0-85184999821 (Scopus ID)
Forskningsfinansiär
Swedish Energy Agency, 50620-1The Kempe Foundations
Tilgjengelig fra: 2024-02-27 Laget: 2024-02-27 Sist oppdatert: 2024-02-27bibliografisk kontrollert
Boulanger, N., Talyzin, A. V., Xiong, S., Hultberg, M. & Grimm, A. (2024). High surface area activated carbon prepared from wood-based spent mushroom substrate for supercapacitors and water treatment. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 680, Article ID 132684.
Åpne denne publikasjonen i ny fane eller vindu >>High surface area activated carbon prepared from wood-based spent mushroom substrate for supercapacitors and water treatment
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2024 (engelsk)Inngår i: Colloids and Surfaces A: Physicochemical and Engineering Aspects, ISSN 0927-7757, E-ISSN 1873-4359, Vol. 680, artikkel-id 132684Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Edible white-rot fungi are commonly cultivated on wood-based substrates and selectively degrade lignin to a larger extent during their growth. Spent mushroom substrate (SMS) is produced in huge amounts by the mushroom industry and today there is a lack of proven methods to valorize this kind of biomass waste, which in most cases is landfilled or used as fuel. This study demonstrates that birch wood-based SMS from the cultivation of oyster mushrooms can be converted into high-quality activated carbon (AC) with an extremely high surface area of about 3000 m2/g. These activated carbons showed good performance when used in electrodes for supercapacitors, with energy storage parameters nearly identical to AC produced from high-quality virgin birch wood. Moreover, AC produced from SMS showed high potential as an adsorbent for cleaning reactive orange-16 azo dye from aqueous solutions as well as contaminants from synthetic effluents and from real sewage water. The kinetics of adsorption were well represented by the Avrami fractional order model and isotherms of adsorption by the Liu model. The theoretical maximum reactive orange-16 adsorption capacities were approximately 519 mg/g (SMS-based carbon) and 553 mg/g (virgin birch-based carbon). The removal of contaminants from synthetic effluents made of different dyes and inorganic compounds was around 95% and 83% depending on the effluent composition. The removal of contaminants from raw sewage water was around 84%, and from treated sewage water was around 68%. Overall, the results showed that activated carbon prepared from waste generated during cultivation of white-rot fungi is as good as activated carbon prepared from high-quality virgin wood.

sted, utgiver, år, opplag, sider
Elsevier, 2024
Emneord
Activated carbon, Adsorbents, Spent mushroom substrate, Supercapacitors, Water treatment
HSV kategori
Identifikatorer
urn:nbn:se:umu:diva-216654 (URN)10.1016/j.colsurfa.2023.132684 (DOI)2-s2.0-85175849086 (Scopus ID)
Forskningsfinansiär
Swedish Research Council Formas, 2021-00877Swedish Energy Agency, 50620-1
Tilgjengelig fra: 2023-11-28 Laget: 2023-11-28 Sist oppdatert: 2023-12-04bibliografisk kontrollert
Nordenström, A., Boulanger, N., Vorobiev, A., Amidani, L., Bauters, S., Galanzew, J., . . . Talyzin, A. V. (2024). Neutron reflectivity for testing graphene oxide films sorption of EuCl3 in ethanol solution. Physica status solidi. B, Basic research
Åpne denne publikasjonen i ny fane eller vindu >>Neutron reflectivity for testing graphene oxide films sorption of EuCl3 in ethanol solution
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2024 (engelsk)Inngår i: Physica status solidi. B, Basic research, ISSN 0370-1972, E-ISSN 1521-3951Artikkel i tidsskrift (Fagfellevurdert) Epub ahead of print
Abstract [en]

Neutron reflectivity (NR) was used to study the sorption of Eu(III) by graphene oxide (GO) films exposed to ethanol solution of EuCl3. Most of the earlier sorption studies have been performed using GO dispersed in solution. In contrast, layered structure of GO films imposes limitations for penetration of ions between individual sheets. The analysis of NR data recorded before and after sorption under vacuum demonstrates an increase of GO film thickness due to sorption by 35–40%. The characterization of chemical state of Eu(III) sorbed by GO films by X-ray absorption near-edge structure (XANES) in high-energy resolution fluorescence detection (HERFD) method at the Eu L3 edge reveals that it remains the same as in anhydrous EuCl3. Analysis of all collected data including reference experiments with bulk GO samples allows to conclude that EuCl3 penetrates into GO interlayers with ethanol solution and remains trapped in interlayers after evaporation of ethanol. Sorption of EuCl3 results in nearly complete amorphization of film and likely formation of voids, thus making NR models based on specific volume of unit cell not valid for quantitative evaluation of Eu sorption. Limitations of NR method must be taken into account in future studies of sorption by thin films.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2024
Emneord
graphene oxides, lanthanides, neutron reflectivities
HSV kategori
Identifikatorer
urn:nbn:se:umu:diva-223479 (URN)10.1002/pssb.202400069 (DOI)001199666100001 ()2-s2.0-85189887182 (Scopus ID)
Forskningsfinansiär
Swedish Energy Agency, 50620-1ÅForsk (Ångpanneföreningen's Foundation for Research and Development), 23-275
Tilgjengelig fra: 2024-04-19 Laget: 2024-04-19 Sist oppdatert: 2024-04-22
Iakunkov, A., Lienert, U., Sun, J. & Talyzin, A. V. (2024). Swelling of Ti3C2Tx mxene in water and methanol at extreme pressure conditions. Advanced Science, 11(9), Article ID 2307067.
Åpne denne publikasjonen i ny fane eller vindu >>Swelling of Ti3C2Tx mxene in water and methanol at extreme pressure conditions
2024 (engelsk)Inngår i: Advanced Science, E-ISSN 2198-3844, Vol. 11, nr 9, artikkel-id 2307067Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Pressure-induced swelling has been reported earlier for several hydrophilic layered materials. MXene Ti3C2Tx is also a hydrophilic layered material composed by 2D sheets but so far pressure-induced swelling is reported for this material only under conditions of shear stress at MPa pressures. Here, high-pressure experiments are performed with MXenes prepared by two methods known to provide “clay-like” materials. MXene synthesized by etching MAX phase with HCl+LiF demonstrates the effect of pressure-induced swelling at 0.2 GPa with the insertion of additional water layer. The transition is incomplete with two swollen phases (ambient with d(001) = 16.7Å and pressure-induced with d(001) = 19.2Å at 0.2 GPa) co-existing up to the pressure point of water solidification. Therefore, the swelling transition corresponds to change from two-layer water intercalation (2L-phase) to a never previously observed three-layer water intercalation (3L-phase) of MXene. Experiments with MXene prepared by LiCl+HF etching have not revealed pressure-induced swelling in liquid water. Both MXenes also show no anomalous compressibility in liquid methanol. The presence of pressure-induced swelling only in one of the MXenes indicates that the HCl+LiF synthesis method is likely to result in higher abundance of hydrophilic functional groups terminating 2D titanium carbide.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2024
Emneord
2D materials, compressibility, high pressure, MXene, swelling
HSV kategori
Identifikatorer
urn:nbn:se:umu:diva-218631 (URN)10.1002/advs.202307067 (DOI)001126400200001 ()38095537 (PubMedID)2-s2.0-85179749248 (Scopus ID)
Forskningsfinansiär
Swedish Research Council, 2017-04456Swedish Research Council, 2019-03411Swedish Research Council, 2021-05924Vinnova, 2019-00068
Tilgjengelig fra: 2023-12-27 Laget: 2023-12-27 Sist oppdatert: 2024-05-08bibliografisk kontrollert
Li, G., Iakunkov, A., Boulanger, N., Lazar, O. A., Enachescu, M., Grimm, A. & Talyzin, A. V. (2023). Activated carbons with extremely high surface area produced from cones, bark and wood using the same procedure. RSC Advances, 13(21), 14543-14553
Åpne denne publikasjonen i ny fane eller vindu >>Activated carbons with extremely high surface area produced from cones, bark and wood using the same procedure
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2023 (engelsk)Inngår i: RSC Advances, E-ISSN 2046-2069, Vol. 13, nr 21, s. 14543-14553Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Activated carbons have been previously produced from a huge variety of biomaterials often reporting advantages of using certain precursors. Here we used pine cones, spruce cones, larch cones and a pine bark/wood chip mixture to produce activated carbons in order to verify the influence of the precursor on properties of the final materials. The biochars were converted into activated carbons with extremely high BET surface area up to ∼3500 m2 g−1 (among the highest reported) using identical carbonization and KOH activation procedures. The activated carbons produced from all precursors demonstrated similar specific surface area (SSA), pore size distribution and performance to electrodes in supercapacitors. Activated carbons produced from wood waste appeared to be also very similar to “activated graphene” prepared by the same KOH procedure. Hydrogen sorption of AC follows expected uptake vs. SSA trends and energy storage parameters of supercapacitor electrodes prepared from AC are very similar for all tested precursors. It can be concluded that the type of precursor (biomaterial or reduced graphene oxide) has smaller importance for producing high surface area activated carbons compared to details of carbonization and activation. Nearly all kinds of wood waste provided by the forest industry can possibly be converted into high quality AC suitable for preparation of electrode materials.

sted, utgiver, år, opplag, sider
Royal Society of Chemistry, 2023
HSV kategori
Identifikatorer
urn:nbn:se:umu:diva-208856 (URN)10.1039/d3ra00820g (DOI)000986219500001 ()2-s2.0-85159783219 (Scopus ID)
Forskningsfinansiär
European Commission, 881603Swedish Energy Agency, 50620-1
Tilgjengelig fra: 2023-06-01 Laget: 2023-06-01 Sist oppdatert: 2023-06-21bibliografisk kontrollert
Mishukova, V., Su, Y., Chen, S., Boulanger, N., Xu, B., Thangavelu, H. H., . . . Li, J. (2023). Microsupercapacitors working at 250 °C. Batteries & Supercaps, 6(9), Article ID e202300312.
Åpne denne publikasjonen i ny fane eller vindu >>Microsupercapacitors working at 250 °C
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2023 (engelsk)Inngår i: Batteries & Supercaps, E-ISSN 2566-6223, Vol. 6, nr 9, artikkel-id e202300312Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The raised demand for portable electronics in high-temperature environments (>150 °C) stimulates the search for solutions to release the temperature constraints of power supply. All-solid-state microsupercapacitors (MSCs) are envisioned as promising on-chip power supply components, but at present, nearly none of them can work at temperature over 200 °C, mainly restricted by the electrolytes which possess either low thermal stability or incompatible fabrication process with on-chip integration. In this work, we have developed a novel process to fabricate highly thermally stable ionic liquid/ceramic composite electrolytes for on-chip integrated MSCs. Remarkably, the electrolytes enable MSCs with graphene-based electrodes to operate at temperatures as high as 250 °C with a high areal capacitance (~72 mF cm−2 at 5 mV s−1) and good cycling stability (70 % capacitance retention after 1000 cycles at 1.4 mA cm−2).

sted, utgiver, år, opplag, sider
Wiley-VCH Verlagsgesellschaft, 2023
Emneord
ceramic matrix, high temperature electronics, ionic liquid, microsupercapacitors, solid electrolytes
HSV kategori
Identifikatorer
urn:nbn:se:umu:diva-212818 (URN)10.1002/batt.202300312 (DOI)001041960000001 ()2-s2.0-85166584858 (Scopus ID)
Forskningsfinansiär
Swedish Research Council, 2019-04731Swedish Research Council, 2020-04341The Swedish Foundation for International Cooperation in Research and Higher Education (STINT), CH2017-7284Vinnova, 2021-04030EU, Horizon 2020, 881603Swedish Energy Agency, 50620-1
Tilgjengelig fra: 2023-08-16 Laget: 2023-08-16 Sist oppdatert: 2023-12-29bibliografisk kontrollert
Boulanger, N., Li, G., Bakhiia, T., Maslakov, K. I., Romanchuk, A. Y., Kalmykov, S. N. & Talyzin, A. V. (2023). Super-oxidized “activated graphene” as 3D analogue of defect graphene oxide: oxidation degree vs U(VI) sorption. Journal of Hazardous Materials, 457, Article ID 131817.
Åpne denne publikasjonen i ny fane eller vindu >>Super-oxidized “activated graphene” as 3D analogue of defect graphene oxide: oxidation degree vs U(VI) sorption
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2023 (engelsk)Inngår i: Journal of Hazardous Materials, ISSN 0304-3894, E-ISSN 1873-3336, Vol. 457, artikkel-id 131817Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Porous carbons are not favorable for sorption of heavy metals and radionuclides due to absence of suitable binding sites. In this study we explored the limits for surface oxidation of “activated graphene” (AG), porous carbon material with the specific surface area of ∼2700 m2/g produced by activation of reduced graphene oxide (GO). Set of “Super-Oxidized Activated Graphene” (SOAG) materials with high abundance of carboxylic groups on the surface were produced using “soft” oxidation. High degree of oxidation comparable to standard GO (C/O=2.3) was achieved while keeping 3D porous structure with specific surface area of ∼700–800 m2/. The decrease in surface area is related to the oxidation-driven collapse of mesopores while micropores showed higher stability. The increase in the oxidation degree of SOAG is found to result in progressively higher sorption of U(VI), mostly related to the increase in abundance of carboxylic groups. The SOAG demonstrated extraordinarily high sorption of U(VI) with the maximal capacity up to 5400 μmol/g, that is 8.4 – fold increase compared to non-oxidized precursor AG, ∼50 –fold increase compared to standard graphene oxide and twice higher than extremely defect-rich graphene oxide. The trends revealed here show a way to further increase sorption if similar oxidation degree is achieved with smaller sacrifice of surface area.

sted, utgiver, år, opplag, sider
Elsevier, 2023
Emneord
Absorbent, Carbon material, Chemical modification, Porous carbon, Uranium
HSV kategori
Identifikatorer
urn:nbn:se:umu:diva-211159 (URN)10.1016/j.jhazmat.2023.131817 (DOI)37327606 (PubMedID)2-s2.0-85162138335 (Scopus ID)
Forskningsfinansiär
EU, Horizon 2020, 881603
Tilgjengelig fra: 2023-07-07 Laget: 2023-07-07 Sist oppdatert: 2023-07-07bibliografisk kontrollert
Nordenström, A., Iakunkov, A., Boulanger, N., Li, G., Hennig, C., Baburin, I., . . . Talyzin, A. V. (2023). Temperature dependent intercalation of molten 1-hexadecanol into Brodie graphite oxide. Carbon, 203, 770-784
Åpne denne publikasjonen i ny fane eller vindu >>Temperature dependent intercalation of molten 1-hexadecanol into Brodie graphite oxide
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2023 (engelsk)Inngår i: Carbon, ISSN 0008-6223, E-ISSN 1873-3891, Vol. 203, s. 770-784Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Intercalation of very long molecules into the structure of multi-layered graphene oxide (GO) was studied using example of 1-hexadecanol (C16), an alcohol molecule with 16 carbon atoms. Brodie graphite oxide (BGO) immersed in excess of liquid C16 just above the melting point shows expansion of c-unit cell parameter from ∼6 Å to ∼48.76 Å forming a structure with two densely packed layers of C16 molecules in a perpendicular orientation relative to the GO planes (α-phase). Heating of the BGO-C16 α-phase in excess of C16 melt results in reversible phase transition into β-phase at 336–342K. The β-phase shows much smaller unit cell parameter of 29.83 Å (363K). Analysis of data obtained using vacuum-driven evaporation of C16 from the β-phase provides evidence for structure of β-phase consisting of five layers of C16 molecules in parallel to GO plane orientation. Therefore, the transition from α-to β-phase corresponds to change in orientation C16 molecules from perpendicular to parallel relative to GO planes and decrease in the amount of intercalated solvent. Cooling of the β-phase in absence of C16 melt is found to result in the formation of γ-phase with inter-layer distance of ∼26.5 Å corresponding to one layer of C16 molecules intercalated perpendicularly relative to the GO planes. Structures with one and two layers of C16 molecules parallel to GO planes were identified in samples with rather small initial loading of C16. Surprisingly rich variety of structures revealed in the BGO-C16 system provides opportunities to create materials with precisely controlled GO inter-layer distance.

sted, utgiver, år, opplag, sider
Elsevier, 2023
Emneord
Graphene oxide, Graphite oxide, Intercalation, Phase transition, Swelling
HSV kategori
Identifikatorer
urn:nbn:se:umu:diva-201949 (URN)10.1016/j.carbon.2022.12.030 (DOI)000906322600001 ()2-s2.0-85143963156 (Scopus ID)
Forskningsfinansiär
EU, Horizon 2020, 881603Swedish Energy Agency, 50620-1Swedish Research Council, 2018-07152Vinnova, 2018-04969Swedish Research Council Formas, 2019-02496
Tilgjengelig fra: 2022-12-29 Laget: 2022-12-29 Sist oppdatert: 2023-09-05bibliografisk kontrollert
Boulanger, N., Kuzenkova, A. S., Iakunkov, A., Nordenström, A., Romanchuk, A. Y., Trigub, A. L., . . . Talyzin, A. V. (2022). High Surface Area "3D Graphene Oxide" for Enhanced Sorption of Radionuclides. Advanced Materials Interfaces, 9(18), Article ID 2200510.
Åpne denne publikasjonen i ny fane eller vindu >>High Surface Area "3D Graphene Oxide" for Enhanced Sorption of Radionuclides
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2022 (engelsk)Inngår i: Advanced Materials Interfaces, ISSN 2196-7350, Vol. 9, nr 18, artikkel-id 2200510Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Here preparation of high surface area activated reduced graphene oxide (arGO) oxidized into a 3D analogue of defect-rich GO (dGO) is reported. Surface oxidation of arGO results in carbon to oxygen ratio C/O = 3.3, similar to the oxidation state of graphene oxide while preserving high BET surface area of about 880 m2 g−1. Analysis of surface oxidized arGO shows high abundance of oxygen functional groups which converts hydrophobic precursor into hydrophilic material. High surface area carbons provide the whole surface for oxidation without the need of intercalation and lattice expansion. Therefore, surface oxidation methods are sufficient to convert the materials into 3D architectures with chemical properties similar to graphene oxide. The "3D graphene oxide" shows high sorption capacity for U(VI) removal in an extraordinary broad interval of pH. Notably, the surface oxidized carbon material has a rigid 3D structure with micropores accessible for penetration of radionuclide ions. Therefore, the bulk "3D GO" can be used as a sorbent directly without dispersing, the step required for GO to make its surface area accessible for pollutants.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2022
Emneord
graphene, graphene oxide, high surface area, radionuclides, sorption
HSV kategori
Identifikatorer
urn:nbn:se:umu:diva-196103 (URN)10.1002/admi.202200510 (DOI)000797817600001 ()2-s2.0-85130220162 (Scopus ID)
Forskningsfinansiär
EU, European Research Council, 759696Swedish Research Council, 2017‐04173EU, Horizon 2020, 785219EU, Horizon 2020, 881603
Merknad

This article also appears in: "Hot Topic: Carbon, Graphite, and Graphene"

Tilgjengelig fra: 2022-06-20 Laget: 2022-06-20 Sist oppdatert: 2022-11-29bibliografisk kontrollert
Organisasjoner
Identifikatorer
ORCID-id: ORCID iD iconorcid.org/0000-0002-3320-8487