Highly effective and CO-tolerant PtRu electrocatalysts supported on poly(ethyleneimine) functionalized carbon nanotubes for direct methanol fuel cells
A highly efficient and CO tolerant PtRu electrocatalysts supported on amino-rich, cationicpoly(ethyleneimine) polyelectrolyte functionalized multi-walled carbon nanotubes (PtRu/PEI-MWCNTs)has been developed. The catalysts were characterized by thermogravimetric analysis, Raman spectroscopy, cyclic v...
| Main Authors: | , |
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| Format: | Journal Article |
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Pergamon
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/31202 |
| _version_ | 1848753311508856832 |
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| author | Cheng, Y. Jiang, San Ping |
| author_facet | Cheng, Y. Jiang, San Ping |
| author_sort | Cheng, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A highly efficient and CO tolerant PtRu electrocatalysts supported on amino-rich, cationicpoly(ethyleneimine) polyelectrolyte functionalized multi-walled carbon nanotubes (PtRu/PEI-MWCNTs)has been developed. The catalysts were characterized by thermogravimetric analysis, Raman spectroscopy, cyclic voltammograms, CO stripping, chronoamperometry, transmission electron microscopy (TEM) and X-ray diffraction (XRD). The PtRu particles with average size ~2.5 nm are well dispersed on PEI-MWCNTs. The peak current for the methanol oxidation reaction on 40% PtRu/PEI-MWCNTs is 636 mA mg-1 Pt , 5.7 times higher than 112 mA mg-1 Pt measured on the 40% PtRu supported on acid treated MWCNTs (PtRu/AO-MWCNTs) under identical conditions. PtRu/PEI-MWCNTs catalysts exhibit a superior electrocatalytic activity and stability for the methanol oxidation reaction due to its high tolerance toward CO poisoning as compared with PtRu/AO-MWCNTs for direct methanol fuel cells. |
| first_indexed | 2025-11-14T08:22:30Z |
| format | Journal Article |
| id | curtin-20.500.11937-31202 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:22:30Z |
| publishDate | 2013 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-312022017-09-13T15:33:38Z Highly effective and CO-tolerant PtRu electrocatalysts supported on poly(ethyleneimine) functionalized carbon nanotubes for direct methanol fuel cells Cheng, Y. Jiang, San Ping direct methanol fuel cells (DMFCs) multi-walled carbon nanotubes (MWCNTs) poly(ethyleneimine) functionalization PtRu nanoparticles A highly efficient and CO tolerant PtRu electrocatalysts supported on amino-rich, cationicpoly(ethyleneimine) polyelectrolyte functionalized multi-walled carbon nanotubes (PtRu/PEI-MWCNTs)has been developed. The catalysts were characterized by thermogravimetric analysis, Raman spectroscopy, cyclic voltammograms, CO stripping, chronoamperometry, transmission electron microscopy (TEM) and X-ray diffraction (XRD). The PtRu particles with average size ~2.5 nm are well dispersed on PEI-MWCNTs. The peak current for the methanol oxidation reaction on 40% PtRu/PEI-MWCNTs is 636 mA mg-1 Pt , 5.7 times higher than 112 mA mg-1 Pt measured on the 40% PtRu supported on acid treated MWCNTs (PtRu/AO-MWCNTs) under identical conditions. PtRu/PEI-MWCNTs catalysts exhibit a superior electrocatalytic activity and stability for the methanol oxidation reaction due to its high tolerance toward CO poisoning as compared with PtRu/AO-MWCNTs for direct methanol fuel cells. 2013 Journal Article http://hdl.handle.net/20.500.11937/31202 10.1016/j.electacta.2013.03.081 Pergamon restricted |
| spellingShingle | direct methanol fuel cells (DMFCs) multi-walled carbon nanotubes (MWCNTs) poly(ethyleneimine) functionalization PtRu nanoparticles Cheng, Y. Jiang, San Ping Highly effective and CO-tolerant PtRu electrocatalysts supported on poly(ethyleneimine) functionalized carbon nanotubes for direct methanol fuel cells |
| title | Highly effective and CO-tolerant PtRu electrocatalysts supported on poly(ethyleneimine) functionalized carbon nanotubes for direct methanol fuel cells |
| title_full | Highly effective and CO-tolerant PtRu electrocatalysts supported on poly(ethyleneimine) functionalized carbon nanotubes for direct methanol fuel cells |
| title_fullStr | Highly effective and CO-tolerant PtRu electrocatalysts supported on poly(ethyleneimine) functionalized carbon nanotubes for direct methanol fuel cells |
| title_full_unstemmed | Highly effective and CO-tolerant PtRu electrocatalysts supported on poly(ethyleneimine) functionalized carbon nanotubes for direct methanol fuel cells |
| title_short | Highly effective and CO-tolerant PtRu electrocatalysts supported on poly(ethyleneimine) functionalized carbon nanotubes for direct methanol fuel cells |
| title_sort | highly effective and co-tolerant ptru electrocatalysts supported on poly(ethyleneimine) functionalized carbon nanotubes for direct methanol fuel cells |
| topic | direct methanol fuel cells (DMFCs) multi-walled carbon nanotubes (MWCNTs) poly(ethyleneimine) functionalization PtRu nanoparticles |
| url | http://hdl.handle.net/20.500.11937/31202 |