Titanium carbide-decorated graphite felt as high performance negative electrode in vanadium redox flow batteries
This paper presents a novel method for preparing binder-free, uniformly distributed titanium carbide (TiC) nanoparticles on graphite felt (GF) surfaces for use as negative electrode in an all vanadium redox flow battery (VRFB). TiO2 particles were grown on the surface of the GF using hydrothermal sy...
| Main Authors: | , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/140906 |
| _version_ | 1826112313943392256 |
|---|---|
| author | Ghimire, Purna Chandra Schweiss, Rüdiger Scherer, Günther G. Wai, Nyunt Lim, Tuti Mariana Bhattarai, Arjun Nguyen, Tam Duy Yan, Qingyu |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Ghimire, Purna Chandra Schweiss, Rüdiger Scherer, Günther G. Wai, Nyunt Lim, Tuti Mariana Bhattarai, Arjun Nguyen, Tam Duy Yan, Qingyu |
| author_sort | Ghimire, Purna Chandra |
| collection | NTU |
| description | This paper presents a novel method for preparing binder-free, uniformly distributed titanium carbide (TiC) nanoparticles on graphite felt (GF) surfaces for use as negative electrode in an all vanadium redox flow battery (VRFB). TiO2 particles were grown on the surface of the GF using hydrothermal synthesis and were subsequently converted to TiC by way of a carbothermal reaction. Cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and VRFB single cell tests unequivocally confirm the catalytic effect of TiC towards the negative redox couple V2+/V3+. A VRFB employing a TiC-decorated electrode in the negative half-cell exhibited a 13% gain in energy efficiency (EE) at a current density of 100 mA cm−2, compared to reference cells assembled solely with pristine graphite felts. Moreover, VRFB cells employing the modified electrode show excellent stability with high capacity retention over repetitive cycling. These results suggest that TiC nanoparticles supported on carbon fibres constitute a high performance negative electrode for VRFBs. |
| first_indexed | 2024-10-01T03:04:57Z |
| format | Journal Article |
| id | ntu-10356/140906 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:04:57Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1409062021-01-20T03:14:09Z Titanium carbide-decorated graphite felt as high performance negative electrode in vanadium redox flow batteries Ghimire, Purna Chandra Schweiss, Rüdiger Scherer, Günther G. Wai, Nyunt Lim, Tuti Mariana Bhattarai, Arjun Nguyen, Tam Duy Yan, Qingyu School of Civil and Environmental Engineering School of Materials Science and Engineering Interdisciplinary Graduate School (IGS) Energy Research Institute @ NTU (ERI@N) Engineering::Environmental engineering Titanium Carbide Graphite Felt This paper presents a novel method for preparing binder-free, uniformly distributed titanium carbide (TiC) nanoparticles on graphite felt (GF) surfaces for use as negative electrode in an all vanadium redox flow battery (VRFB). TiO2 particles were grown on the surface of the GF using hydrothermal synthesis and were subsequently converted to TiC by way of a carbothermal reaction. Cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and VRFB single cell tests unequivocally confirm the catalytic effect of TiC towards the negative redox couple V2+/V3+. A VRFB employing a TiC-decorated electrode in the negative half-cell exhibited a 13% gain in energy efficiency (EE) at a current density of 100 mA cm−2, compared to reference cells assembled solely with pristine graphite felts. Moreover, VRFB cells employing the modified electrode show excellent stability with high capacity retention over repetitive cycling. These results suggest that TiC nanoparticles supported on carbon fibres constitute a high performance negative electrode for VRFBs. Accepted version 2020-06-03T01:10:18Z 2020-06-03T01:10:18Z 2018 Journal Article Ghimire, P. C., Schweiss, R., Scherer, G. G., Wai, N., Lim, T. M., Bhattarai, A., . . . Yan, Q. (2018). Titanium carbide-decorated graphite felt as high performance negative electrode in vanadium redox flow batteries. Journal of Materials Chemistry A, 6(15), 6625-6632. doi:10.1039/c8ta00464a 2050-7488 https://hdl.handle.net/10356/140906 10.1039/c8ta00464a 2-s2.0-85045558478 15 6 6625 6632 en Journal of Materials Chemistry A © 2018 The Royal Society of Chemistry. All rights reserved. This paper was published in Journal of Materials Chemistry A and is made available with permission of The Royal Society of Chemistry. application/pdf |
| spellingShingle | Engineering::Environmental engineering Titanium Carbide Graphite Felt Ghimire, Purna Chandra Schweiss, Rüdiger Scherer, Günther G. Wai, Nyunt Lim, Tuti Mariana Bhattarai, Arjun Nguyen, Tam Duy Yan, Qingyu Titanium carbide-decorated graphite felt as high performance negative electrode in vanadium redox flow batteries |
| title | Titanium carbide-decorated graphite felt as high performance negative electrode in vanadium redox flow batteries |
| title_full | Titanium carbide-decorated graphite felt as high performance negative electrode in vanadium redox flow batteries |
| title_fullStr | Titanium carbide-decorated graphite felt as high performance negative electrode in vanadium redox flow batteries |
| title_full_unstemmed | Titanium carbide-decorated graphite felt as high performance negative electrode in vanadium redox flow batteries |
| title_short | Titanium carbide-decorated graphite felt as high performance negative electrode in vanadium redox flow batteries |
| title_sort | titanium carbide decorated graphite felt as high performance negative electrode in vanadium redox flow batteries |
| topic | Engineering::Environmental engineering Titanium Carbide Graphite Felt |
| url | https://hdl.handle.net/10356/140906 |
| work_keys_str_mv | AT ghimirepurnachandra titaniumcarbidedecoratedgraphitefeltashighperformancenegativeelectrodeinvanadiumredoxflowbatteries AT schweissrudiger titaniumcarbidedecoratedgraphitefeltashighperformancenegativeelectrodeinvanadiumredoxflowbatteries AT schererguntherg titaniumcarbidedecoratedgraphitefeltashighperformancenegativeelectrodeinvanadiumredoxflowbatteries AT wainyunt titaniumcarbidedecoratedgraphitefeltashighperformancenegativeelectrodeinvanadiumredoxflowbatteries AT limtutimariana titaniumcarbidedecoratedgraphitefeltashighperformancenegativeelectrodeinvanadiumredoxflowbatteries AT bhattaraiarjun titaniumcarbidedecoratedgraphitefeltashighperformancenegativeelectrodeinvanadiumredoxflowbatteries AT nguyentamduy titaniumcarbidedecoratedgraphitefeltashighperformancenegativeelectrodeinvanadiumredoxflowbatteries AT yanqingyu titaniumcarbidedecoratedgraphitefeltashighperformancenegativeelectrodeinvanadiumredoxflowbatteries |