Pt atoms on doped carbon nanosheets with ultrahigh N content as a superior bifunctional catalyst for hydrogen evolution/oxidation

Zhang, Zhen1,2; Jiang, Cheng2; Li, Ping3; Feng, Qi2; Zhao, Zhi liang2; Yao, Keguang2; Fan, Jiantao2; Li, Hui2; Wang, Haijiang4

2021-01-21

10.1039/d0se01516d

Sustainable Energy & Fuels   影响因子和分区

2398-4902

Pt single-atom catalysts (SACs) have shown great potential for electrochemical catalysis. However, no systematic study of their bifunctional catalytic activity for the hydrogen evolution reaction (HER) and the hydrogen oxidation reaction (HOR) has yet been published. More significantly, the reported catalytic capabilities of Pt SACs have almost been exclusively measured using a rotating disk electrode (RDE) with a three-electrode configuration, which does not accurately reflect the catalysts' performance during operation within single-cell devices. Herein, we demonstrate the immobilization of isolated Pt atoms on a carbon nanosheet support doped with ultrahigh N content (12.1 at%; Pt/NCS) to create a bifunctional HER/HOR catalyst. Compared with commercial Pt/C, the developed Pt/NCS catalyst delivered high utilization as well as excellent mass activity enhancement and stability for both reactions. As a final test, a rigorous catalyst evaluation was conducted in both a proton exchange membrane (PEM) electrolyzer and a PEM fuel cell. As expected, with only half the Pt loading of commercial Pt/C, Pt/NCS-based electrodes in the electrolyzer and the fuel cell still exhibited slightly better performance than those based on Pt/C. This work constitutes a huge step from the academic study of Pt-based SCAs to their industrial application, and it focuses more attention on the harsh evaluation and optimization of SACs within commercial-scale devices.

SCI ; EI

英语

通讯

National Key Research and Development Program of China[2017YFB0102701] ; Shenzhen Peacock Plan[KQTD2016022620054656] ; Development and Reform Commission of Shenzhen Municipality[1106] ; Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06N500] ; Postdoctoral Science Foundation funded project[2020M673364] ; National Natural Science Foundation of China[12004295] ; Natural Science Foundation for Distinguished Young Scholars of Hunan Province[2018JJ1022]

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000611818900021

ROYAL SOC CHEMISTRY

20210509851330

Atoms ; Carbon ; Catalyst activity ; Catalytic oxidation ; Electrodes ; Electrolytic cells ; Hydrogen ; Hydrogen evolution reaction ; Nanosheets ; Platinum ; Proton exchange membrane fuel cells (PEMFC)

Precious Metals:547.1 ; Fuel Cells:702.2 ; Nanotechnology:761 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Atomic and Molecular Physics:931.3 ; Solid State Physics:933

Web of Science

1.Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Xi An Jiao Tong Univ, Sch Mat Sci & Engn, Ctr Spintron & Quantum Syst, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
4.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China

Zhang, Zhen,Jiang, Cheng,Li, Ping,et al. Pt atoms on doped carbon nanosheets with ultrahigh N content as a superior bifunctional catalyst for hydrogen evolution/oxidation[J]. Sustainable Energy & Fuels,2021,5(2):532-539.

Zhang, Zhen.,Jiang, Cheng.,Li, Ping.,Feng, Qi.,Zhao, Zhi liang.,...&Wang, Haijiang.(2021).Pt atoms on doped carbon nanosheets with ultrahigh N content as a superior bifunctional catalyst for hydrogen evolution/oxidation.Sustainable Energy & Fuels,5(2),532-539.

Zhang, Zhen,et al."Pt atoms on doped carbon nanosheets with ultrahigh N content as a superior bifunctional catalyst for hydrogen evolution/oxidation".Sustainable Energy & Fuels 5.2(2021):532-539.