中空石墨化碳纤维内的超稳定铂非晶碳电催化剂用于氧还原反应。
Extremely Stable Platinum-Amorphous Carbon Electrocatalyst within Hollow Graphitized Carbon Nanofibers for the Oxygen Reduction Reaction.
机构信息
School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
Nanoscale & Microscale Research Centre, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
出版信息
Adv Mater. 2016 Nov;28(41):9103-9108. doi: 10.1002/adma.201602485. Epub 2016 Aug 29.
Unprecedented electrochemical stabilization of platinum nanoparticles (PtNPs) is presented, upon insertion into shortened hollow graphitized carbon nanofibers (PtNP@S-GNF) toward the oxygen-reduction reaction for fuel-cell applications. In contrast to that observed for a commercial Pt/C electrocatalyst, the specific activity and the electrochemical surface area for PtNP@S-GNF remain practically unchanged during durability tests after 50 000 potential cycles, allowing the sustainable use of Pt.
提出了一种前所未有的电化学稳定方法，即将铂纳米颗粒（PtNPs）嵌入缩短的中空石墨化碳纳米纤维（PtNP@S-GNF）中，用于燃料电池中的氧还原反应。与商业 Pt/C 电催化剂相比，在经过 50000 个电位循环的耐久性测试后，PtNP@S-GNF 的比活性和电化学表面积实际上保持不变，从而可以可持续地使用 Pt。
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