Atomically dispersed Pt and Fe sites and Pt–Fe nanoparticles for durable proton exchange membrane fuel cells

Xiao，Fei1; Wang，Qi2; Xu，Gui Liang3; Qin，Xueping1; Hwang，Inhui4; Sun，Cheng Jun4; Liu，Min5; Hua，Wei6; Wu，Hsi wen1; Zhu，Shangqian1; Li，Jin Cheng1,7; Wang，Jian Gan6; Zhu，Yuanmin2; Wu，Duojie2; Wei，Zidong8; Gu，Meng2; Amine，Khalil3,9,10; Shao，Minhua1,7,11,12

2022-06-01

10.1038/s41929-022-00796-1

Nature Catalysis   影响因子和分区

2520-1158

Proton exchange membrane fuel cells convert hydrogen and oxygen into electricity without emissions. The high cost and low durability of Pt-based electrocatalysts for the oxygen reduction reaction hinder their wide application, and the development of non-precious metal electrocatalysts is limited by their low performance. Here we design a hybrid electrocatalyst that consists of atomically dispersed Pt and Fe single atoms and Pt–Fe alloy nanoparticles. Its Pt mass activity is 3.7 times higher than that of commercial Pt/C in a fuel cell. More importantly, the fuel cell with a low Pt loading in the cathode (0.015 mg cm) shows an excellent durability, with a 97% activity retention after 100,000 cycles and no noticeable current drop at 0.6 V for over 200 hours. These results highlight the importance of the synergistic effects among active sites in hybrid electrocatalysts and provide an alternative way to design more active and durable low-Pt electrocatalysts for electrochemical devices. [Figure not available: see fulltext.]

SCI ; EI

英语

ESI热点 ; ESI高被引

通讯

National Key Research and Development Program of China[2020YFB1505800];U.S. Department of Energy[DE-AC02-06CH11357];Innovation and Technology Commission - Hong Kong[ITC-CNERC14EG03];Science, Technology and Innovation Commission of Shenzhen Municipality[SGDX2019081623340748];

WOS:000805042200002

20222312202427

Durability ; Electrocatalysts ; Electrolysis ; Electrolytic reduction ; Iron alloys ; Nanoparticles ; Oxygen

Ore Treatment:533.1 ; Iron Alloys:545.2 ; Fuel Cells:702.2 ; Nanotechnology:761 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Solid State Physics:933

2-s2.0-85131323587

Scopus

1.Department of Chemical and Biological Engineering,The Hong Kong University of Science and Technology,Kowloon,Hong Kong
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,China
3.Chemical Sciences and Engineering Division,Argonne National Laboratory,Lemont,United States
4.X-ray Science Division,Argonne National Laboratory,Lemont,United States
5.College of Nuclear Science and Technology,University of South China,Hengyang,China
6.Department of Materials Science and Engineering,Northwestern Polytechnical University,Xi’an,China
7.Fok Ying Tung Research Institute,The Hong Kong University of Science and Technology,Guangzhou,China
8.College of Chemistry and Chemical Engineering,Chongqing University,Chongqing,China
9.Materials Science and Engineering,Stanford University,Stanford,United States
10.Materials Science and Nano-engineering,Mohammed VI Polytechnic University,Ben Guerir,Morocco
11.Energy Institute,and Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution,The Hong Kong University of Science and Technology,Kowloon,Hong Kong
12.Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou),Guangzhou,China

Xiao，Fei,Wang，Qi,Xu，Gui Liang,等. Atomically dispersed Pt and Fe sites and Pt–Fe nanoparticles for durable proton exchange membrane fuel cells[J]. Nature Catalysis,2022,5(6):503-512.

Xiao，Fei.,Wang，Qi.,Xu，Gui Liang.,Qin，Xueping.,Hwang，Inhui.,...&Shao，Minhua.(2022).Atomically dispersed Pt and Fe sites and Pt–Fe nanoparticles for durable proton exchange membrane fuel cells.Nature Catalysis,5(6),503-512.

Xiao，Fei,et al."Atomically dispersed Pt and Fe sites and Pt–Fe nanoparticles for durable proton exchange membrane fuel cells".Nature Catalysis 5.6(2022):503-512.