Embedding Pt Nanocrystals in N-Doped Porous Carbon/Carbon Nanotubes toward Highly Stable Electrocatalysts for the Oxygen Reduction Reaction
文献类型：期刊论文
| 作者 | Guo, Lin1,2; Jiang, Wen-Jie1; Zhang, Yun1,2; Hu, Jin-Song1; Wei, Zi-Dong2; Wan, Li-Jun1 |
| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2015-05-01 |
| 卷号 | 5期号:5页码:2903-2909 |
| 关键词 | PEMFCs platinum N-doped carbon high durability nanostructures |
| 英文摘要 | The development of highly stable and efficient catalysts for sluggish cathode oxygen reduction reaction (ORR) is extremely important for the long-term operation and the commercialization of proton exchange membrane fuel cells (PEMFCs) but still challenging. We present herein a facile strategy to efficiently embed Pt nanocrystals into N-doped porous carbon/carbon nanotubes (Pt@CNx/CNT). The N-doped porous carbon shells not only effectively prevented Pt nanocrystals from detachment, dissolution, migration, and aggregation during accelerated durability tests or heat-treatment at 900 degrees C, but also allowed the access of electrolyte to the Pt surface and preserved the good electron transfer of CNT by avoiding the structural damage of carbon nanotubes (CNTs). The interaction between the embedded Pt nanocrystals and the encapsulating CNx layer was found in Pt@CNx/CNT, which markedly affected the electronic structure of Pt nanocrystals and contributed to the improvement on the catalytic activity and stability of Pt@CNx/GNT. As a result, the Pt@CNx/CNT catalyst exhibited an excellent thermal stability, durability, and sufficient catalytic activity for ORR. The demonstrated strategy could be easily extended to produce a wide range of other electrocatalysts with even better activity and extraordinary stability. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-11-02 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/28096]  |
| 专题 | 化学研究所_分子纳米结构与纳米技术实验室 |
| 作者单位 | 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 2.Chongqing Univ, Coll Chem & Chem Engn, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Lin,Jiang, Wen-Jie,Zhang, Yun,et al. Embedding Pt Nanocrystals in N-Doped Porous Carbon/Carbon Nanotubes toward Highly Stable Electrocatalysts for the Oxygen Reduction Reaction[J]. ACS CATALYSIS,2015,5(5):2903-2909. |
| APA | Guo, Lin,Jiang, Wen-Jie,Zhang, Yun,Hu, Jin-Song,Wei, Zi-Dong,&Wan, Li-Jun.(2015).Embedding Pt Nanocrystals in N-Doped Porous Carbon/Carbon Nanotubes toward Highly Stable Electrocatalysts for the Oxygen Reduction Reaction.ACS CATALYSIS,5(5),2903-2909. |
| MLA | Guo, Lin,et al."Embedding Pt Nanocrystals in N-Doped Porous Carbon/Carbon Nanotubes toward Highly Stable Electrocatalysts for the Oxygen Reduction Reaction".ACS CATALYSIS 5.5(2015):2903-2909. |
入库方式： OAI收割
来源：化学研究所
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