High performance platinum single atom electrocatalyst for oxygen reduction reaction.
High performance platinum single atom electrocatalyst for oxygen reduction reaction.
复制标题
DOI:
10.1038/ncomms15938
复制
发表时间:
2017-07-24
影响因子:
16.6
通讯作者:
Sun G
中科院分区:
文献类型:
--
作者:
Liu J;Jiao M;Lu L;Barkholtz HM;Li Y;Wang Y;Jiang L;Wu Z;Liu DJ;Zhuang L;Ma C;Zeng J;Zhang B;Su D;Song P;Xing W;Xu W;Wang Y;Jiang Z;Sun G
For the large-scale sustainable implementation of polymer electrolyte membrane fuel cells in vehicles, high-performance electrocatalysts with low platinum consumption are desirable for use as cathode material during the oxygen reduction reaction in fuel cells. Here we report a carbon black-supported cost-effective, efficient and durable platinum single-atom electrocatalyst with carbon monoxide/methanol tolerance for the cathodic oxygen reduction reaction. The acidic single-cell with such a catalyst as cathode delivers high performance, with power density up to 680 mW cm−2 at 80 °C with a low platinum loading of 0.09 mgPt cm−2, corresponding to a platinum utilization of 0.13 gPt kW−1 in the fuel cell. Good fuel cell durability is also observed. Theoretical calculations reveal that the main effective sites on such platinum single-atom electrocatalysts are single-pyridinic-nitrogen-atom-anchored single-platinum-atom centres, which are tolerant to carbon monoxide/methanol, but highly active for the oxygen reduction reaction. High-performance electrocatalysts for the oxygen reduction reaction (ORR) typically use platinum (Pt), however its high cost is a hindrance to commercial scale up. Here, the authors report a cost-effective, efficient and durable Pt single-atom electrocatalyst for ORR with a Pt utilization of 0.13 gPt kW−1 in a fuel cell.
登录
查看更多内容
影响因子:
3.7
作者:
Kresse, G;Furthmuller, J
通讯作者:
Furthmuller, J
影响因子:
3.3
作者:
Norskov, JK;Rossmeisl, J;Jónsson, H
通讯作者:
Jónsson, H
影响因子:
2.8
作者:
Grunes, J;Zhu, J;Somorjai, GA
通讯作者:
Somorjai, GA
影响因子:
56.9
作者:
Chen, Chen;Kang, Yijin;Stamenkovic, Vojislav R.
通讯作者:
Stamenkovic, Vojislav R.
影响因子:
16.6
作者:
通讯作者:
--