Preparation of Pt Ag alloy nanoisland/graphene hybrid composites and its high stability and catalytic activity in methanol electro-oxidation
<p>Abstract</p> <p>In this article, PtAg alloy nanoislands/graphene hybrid composites were prepared based on the self-organization of Au@PtAg nanorods on graphene sheets. Graphite oxides (GO) were prepared and separated to individual sheets using Hummer's method. Graphene nano...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2011-01-01
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| Series: | Nanoscale Research Letters |
| Online Access: | http://www.nanoscalereslett.com/content/6/1/551 |
| _version_ | 1797712188857647104 |
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| author | Feng Lili Gao Guo Huang Peng Wang Xiansong Zhang Chunlei Zhang Jiali Guo Shouwu Cui Daxiang |
| author_facet | Feng Lili Gao Guo Huang Peng Wang Xiansong Zhang Chunlei Zhang Jiali Guo Shouwu Cui Daxiang |
| author_sort | Feng Lili |
| collection | DOAJ |
| description | <p>Abstract</p> <p>In this article, PtAg alloy nanoislands/graphene hybrid composites were prepared based on the self-organization of Au@PtAg nanorods on graphene sheets. Graphite oxides (GO) were prepared and separated to individual sheets using Hummer's method. Graphene nano-sheets were prepared by chemical reduction with hydrazine. The prepared PtAg alloy nanomaterial and the hybrid composites with graphene were characterized by SEM, TEM, and zeta potential measurements. It is confirmed that the prepared Au@PtAg alloy nanorods/graphene hybrid composites own good catalytic function for methanol electro-oxidation by cyclic voltammograms measurements, and exhibited higher catalytic activity and more stability than pure Au@Pt nanorods and Au@AgPt alloy nanorods. In conclusion, the prepared PtAg alloy nanoislands/graphene hybrid composites own high stability and catalytic activity in methanol electro-oxidation, so that it is one kind of high-performance catalyst, and has great potential in applications such as methanol fuel cells in near future.</p> |
| first_indexed | 2024-03-12T07:17:06Z |
| format | Article |
| id | doaj.art-5650129fa63b4f88add88f76a7ae1e00 |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T07:17:06Z |
| publishDate | 2011-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-5650129fa63b4f88add88f76a7ae1e002023-09-02T22:41:07ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2011-01-0161551Preparation of Pt Ag alloy nanoisland/graphene hybrid composites and its high stability and catalytic activity in methanol electro-oxidationFeng LiliGao GuoHuang PengWang XiansongZhang ChunleiZhang JialiGuo ShouwuCui Daxiang<p>Abstract</p> <p>In this article, PtAg alloy nanoislands/graphene hybrid composites were prepared based on the self-organization of Au@PtAg nanorods on graphene sheets. Graphite oxides (GO) were prepared and separated to individual sheets using Hummer's method. Graphene nano-sheets were prepared by chemical reduction with hydrazine. The prepared PtAg alloy nanomaterial and the hybrid composites with graphene were characterized by SEM, TEM, and zeta potential measurements. It is confirmed that the prepared Au@PtAg alloy nanorods/graphene hybrid composites own good catalytic function for methanol electro-oxidation by cyclic voltammograms measurements, and exhibited higher catalytic activity and more stability than pure Au@Pt nanorods and Au@AgPt alloy nanorods. In conclusion, the prepared PtAg alloy nanoislands/graphene hybrid composites own high stability and catalytic activity in methanol electro-oxidation, so that it is one kind of high-performance catalyst, and has great potential in applications such as methanol fuel cells in near future.</p>http://www.nanoscalereslett.com/content/6/1/551 |
| spellingShingle | Feng Lili Gao Guo Huang Peng Wang Xiansong Zhang Chunlei Zhang Jiali Guo Shouwu Cui Daxiang Preparation of Pt Ag alloy nanoisland/graphene hybrid composites and its high stability and catalytic activity in methanol electro-oxidation Nanoscale Research Letters |
| title | Preparation of Pt Ag alloy nanoisland/graphene hybrid composites and its high stability and catalytic activity in methanol electro-oxidation |
| title_full | Preparation of Pt Ag alloy nanoisland/graphene hybrid composites and its high stability and catalytic activity in methanol electro-oxidation |
| title_fullStr | Preparation of Pt Ag alloy nanoisland/graphene hybrid composites and its high stability and catalytic activity in methanol electro-oxidation |
| title_full_unstemmed | Preparation of Pt Ag alloy nanoisland/graphene hybrid composites and its high stability and catalytic activity in methanol electro-oxidation |
| title_short | Preparation of Pt Ag alloy nanoisland/graphene hybrid composites and its high stability and catalytic activity in methanol electro-oxidation |
| title_sort | preparation of pt ag alloy nanoisland graphene hybrid composites and its high stability and catalytic activity in methanol electro oxidation |
| url | http://www.nanoscalereslett.com/content/6/1/551 |
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