Self-assembled CeO2 on carbon nanotubes supported Au nanoclusters as superior electrocatalysts for glycerol oxidation reaction of fuel cells
© 2015 Elsevier Ltd. All rights reserved. One of the critical challenges in energy conversion using fuel cells is the development of non-Pt based electrocatalysts with high activity and stability. Herein, CeO2 nanoclusters of 1.5 nm supported on 1-pyrenecarboxylic acid (PC) functionalized multi-wall...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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2016
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| Online Access: | http://purl.org/au-research/grants/arc/DP150102044 http://hdl.handle.net/20.500.11937/38536 |
| _version_ | 1848755346475057152 |
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| author | Yuan, W. Zhang, J. Shen, P. Li, C. Jiang, San Ping |
| author_facet | Yuan, W. Zhang, J. Shen, P. Li, C. Jiang, San Ping |
| author_sort | Yuan, W. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2015 Elsevier Ltd. All rights reserved. One of the critical challenges in energy conversion using fuel cells is the development of non-Pt based electrocatalysts with high activity and stability. Herein, CeO2 nanoclusters of 1.5 nm supported on 1-pyrenecarboxylic acid (PC) functionalized multi-walled carbon nanotubes (PC-MWNTs) were synthesized via sequential polyelectrolyte functionalization and microwave-assisted self-assembly, and subsequently used as a support of gold (Au) NPs for glycerol oxidation reaction. The hybrid Au/CeO2/PC-MWNT electrocatalyst shows excellent activity and durability, achieving a peak current density 28 times that of the commercial Pt/C catalyst; at a practical fuel cell operation potential of -0.3 V vs. SCE, it exhibits a current density 1.6 times that of Pt/C. In addition, after polarization at -0.3 V vs. SCE for 1800s, the current density is 2.5 times that of Pt/C. This is probably the first report of a higher catalytic performance of Au-based catalysts than that of the commercial Pt/C catalysts at practical fuel cell operation potentials. The work not only provides an economical and facile strategy to synthesize oxide-based nanoclusters (NP size < 2 nm) as a support of Au-based electrocatalysis, but also offers a superior electrocatalyst to replace Pt-based ones for glycerol oxidation reaction in glycerol fuel-based direct alcohol fuel cells. |
| first_indexed | 2025-11-14T08:54:51Z |
| format | Journal Article |
| id | curtin-20.500.11937-38536 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:54:51Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-385362022-10-12T07:15:09Z Self-assembled CeO2 on carbon nanotubes supported Au nanoclusters as superior electrocatalysts for glycerol oxidation reaction of fuel cells Yuan, W. Zhang, J. Shen, P. Li, C. Jiang, San Ping © 2015 Elsevier Ltd. All rights reserved. One of the critical challenges in energy conversion using fuel cells is the development of non-Pt based electrocatalysts with high activity and stability. Herein, CeO2 nanoclusters of 1.5 nm supported on 1-pyrenecarboxylic acid (PC) functionalized multi-walled carbon nanotubes (PC-MWNTs) were synthesized via sequential polyelectrolyte functionalization and microwave-assisted self-assembly, and subsequently used as a support of gold (Au) NPs for glycerol oxidation reaction. The hybrid Au/CeO2/PC-MWNT electrocatalyst shows excellent activity and durability, achieving a peak current density 28 times that of the commercial Pt/C catalyst; at a practical fuel cell operation potential of -0.3 V vs. SCE, it exhibits a current density 1.6 times that of Pt/C. In addition, after polarization at -0.3 V vs. SCE for 1800s, the current density is 2.5 times that of Pt/C. This is probably the first report of a higher catalytic performance of Au-based catalysts than that of the commercial Pt/C catalysts at practical fuel cell operation potentials. The work not only provides an economical and facile strategy to synthesize oxide-based nanoclusters (NP size < 2 nm) as a support of Au-based electrocatalysis, but also offers a superior electrocatalyst to replace Pt-based ones for glycerol oxidation reaction in glycerol fuel-based direct alcohol fuel cells. 2016 Journal Article http://hdl.handle.net/20.500.11937/38536 10.1016/j.electacta.2015.12.152 http://purl.org/au-research/grants/arc/DP150102044 restricted |
| spellingShingle | Yuan, W. Zhang, J. Shen, P. Li, C. Jiang, San Ping Self-assembled CeO2 on carbon nanotubes supported Au nanoclusters as superior electrocatalysts for glycerol oxidation reaction of fuel cells |
| title | Self-assembled CeO2 on carbon nanotubes supported Au nanoclusters as superior electrocatalysts for glycerol oxidation reaction of fuel cells |
| title_full | Self-assembled CeO2 on carbon nanotubes supported Au nanoclusters as superior electrocatalysts for glycerol oxidation reaction of fuel cells |
| title_fullStr | Self-assembled CeO2 on carbon nanotubes supported Au nanoclusters as superior electrocatalysts for glycerol oxidation reaction of fuel cells |
| title_full_unstemmed | Self-assembled CeO2 on carbon nanotubes supported Au nanoclusters as superior electrocatalysts for glycerol oxidation reaction of fuel cells |
| title_short | Self-assembled CeO2 on carbon nanotubes supported Au nanoclusters as superior electrocatalysts for glycerol oxidation reaction of fuel cells |
| title_sort | self-assembled ceo2 on carbon nanotubes supported au nanoclusters as superior electrocatalysts for glycerol oxidation reaction of fuel cells |
| url | http://purl.org/au-research/grants/arc/DP150102044 http://hdl.handle.net/20.500.11937/38536 |