High performance platinum single atom electrocatalyst for oxygen reduction reaction

By Jing Liu, Menggai Jiao, Lanlu Lu, H. Barkholtz, Yuping Li, Ying Wang, Luhua Jiang, Zhijian Wu, Di-Jia Liu, Zhuang Lin and 9 more. Nature Communications, 2017

677 citations recorded by the source corpus.

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−1in a fuel cell.

Subfields: Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/e0a66f6355a1da7450b23d2365203e34ebd8e753

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In Electrical and Electronic Engineering

1. Yao Wang
2. X. Zeng
3. D. Cao
4. Yadong Li
5. Dingsheng Wang

In Renewable Energy, Sustainability and the Environment

1. Dingsheng Wang
2. Yadong Li
3. Yao Wang
4. D. Cao
5. D. Cheng
6. Haoxiang Xu

Citations in the corpus

• A universal principle for a rational design of single-atom electrocatalysts (2018, positive): “In addition to the prediction of adsorption energies of intermediates based on descriptor φ , Tables 1–3 show that U ORRonset , U OERonset and η HER derived from the free-energy diagrams of ORR, OER and HER (Supplementary Tables 31 and 32 and Supplementary Figs.”