Effect of nitrogen-containing functionalization on the electrocatalytic activity of PtRu nanoparticles supported on carbon nanotubes for direct methanol fuel cells
PtRu nanoparticles (NPs) with average size of ∼3 nm are supported onto poly(diallyldimethylammonium chloride) (PDDA), polyethylenimine (PEI), 1-aminopyrene (1-AP or AP), and terahydrofuran (THF) functionalized multi-walled carbon nanotubes (CNTs) using microwave assisted self-assembly method. The Pt...
| Main Authors: | , , , |
|---|---|
| Format: | Journal Article |
| Published: |
elsevier
2014
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/18272 |
| _version_ | 1848749697125056512 |
|---|---|
| author | Cheng, Yi Xu, C. Shen, P. Jiang, San Ping |
| author_facet | Cheng, Yi Xu, C. Shen, P. Jiang, San Ping |
| author_sort | Cheng, Yi |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | PtRu nanoparticles (NPs) with average size of ∼3 nm are supported onto poly(diallyldimethylammonium chloride) (PDDA), polyethylenimine (PEI), 1-aminopyrene (1-AP or AP), and terahydrofuran (THF) functionalized multi-walled carbon nanotubes (CNTs) using microwave assisted self-assembly method. The PtRu/CNTs catalysts are extensively characterized by TGA, TEM, XRD, XPS, cyclic voltammetry and chronoamperometry. Non-covalent functionalization substantially improves the dispersion and distribution of PtRu NPs on CNTs. Most important, the results demonstrate that nitrogen-containing functional groups of the functionalization agents play a critical role in the electrocatalystic activity of PtRu NPs supported on CNTs. PtRu NPs supported on PEI, AP and in less extent PDDA functionalized CNTs exhibited significantly higher electrocatalystic activity and stability for the electro-oxidation of methanol as compared with PtRu supported on THF-CNTs and conventional acid-treated CNTs. The superior activity of PtRu supported on functionalized CNTs is most likely due to the strong interaction of the electron rich nitrogen-containing functional groups of the functionalization agents such as PEI, AP and in less extend PDDA and the PtRu NPs assembled on CNTs. |
| first_indexed | 2025-11-14T07:25:03Z |
| format | Journal Article |
| id | curtin-20.500.11937-18272 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:25:03Z |
| publishDate | 2014 |
| publisher | elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-182722017-09-13T15:57:25Z Effect of nitrogen-containing functionalization on the electrocatalytic activity of PtRu nanoparticles supported on carbon nanotubes for direct methanol fuel cells Cheng, Yi Xu, C. Shen, P. Jiang, San Ping reaction Nitrogen-containing Fuel cells Methanol oxidation Solvent functionalization Polyelectrolyte PtRu nanoparticles PtRu nanoparticles (NPs) with average size of ∼3 nm are supported onto poly(diallyldimethylammonium chloride) (PDDA), polyethylenimine (PEI), 1-aminopyrene (1-AP or AP), and terahydrofuran (THF) functionalized multi-walled carbon nanotubes (CNTs) using microwave assisted self-assembly method. The PtRu/CNTs catalysts are extensively characterized by TGA, TEM, XRD, XPS, cyclic voltammetry and chronoamperometry. Non-covalent functionalization substantially improves the dispersion and distribution of PtRu NPs on CNTs. Most important, the results demonstrate that nitrogen-containing functional groups of the functionalization agents play a critical role in the electrocatalystic activity of PtRu NPs supported on CNTs. PtRu NPs supported on PEI, AP and in less extent PDDA functionalized CNTs exhibited significantly higher electrocatalystic activity and stability for the electro-oxidation of methanol as compared with PtRu supported on THF-CNTs and conventional acid-treated CNTs. The superior activity of PtRu supported on functionalized CNTs is most likely due to the strong interaction of the electron rich nitrogen-containing functional groups of the functionalization agents such as PEI, AP and in less extend PDDA and the PtRu NPs assembled on CNTs. 2014 Journal Article http://hdl.handle.net/20.500.11937/18272 10.1016/j.apcatb.2014.04.017 elsevier restricted |
| spellingShingle | reaction Nitrogen-containing Fuel cells Methanol oxidation Solvent functionalization Polyelectrolyte PtRu nanoparticles Cheng, Yi Xu, C. Shen, P. Jiang, San Ping Effect of nitrogen-containing functionalization on the electrocatalytic activity of PtRu nanoparticles supported on carbon nanotubes for direct methanol fuel cells |
| title | Effect of nitrogen-containing functionalization on the electrocatalytic activity of PtRu nanoparticles supported on carbon nanotubes for direct methanol fuel cells |
| title_full | Effect of nitrogen-containing functionalization on the electrocatalytic activity of PtRu nanoparticles supported on carbon nanotubes for direct methanol fuel cells |
| title_fullStr | Effect of nitrogen-containing functionalization on the electrocatalytic activity of PtRu nanoparticles supported on carbon nanotubes for direct methanol fuel cells |
| title_full_unstemmed | Effect of nitrogen-containing functionalization on the electrocatalytic activity of PtRu nanoparticles supported on carbon nanotubes for direct methanol fuel cells |
| title_short | Effect of nitrogen-containing functionalization on the electrocatalytic activity of PtRu nanoparticles supported on carbon nanotubes for direct methanol fuel cells |
| title_sort | effect of nitrogen-containing functionalization on the electrocatalytic activity of ptru nanoparticles supported on carbon nanotubes for direct methanol fuel cells |
| topic | reaction Nitrogen-containing Fuel cells Methanol oxidation Solvent functionalization Polyelectrolyte PtRu nanoparticles |
| url | http://hdl.handle.net/20.500.11937/18272 |