Pt3Fe Nanoparticles on B,N-Codoped Carbon as Oxygen Reduction and pH-Universal Hydrogen Evolution Electrocatalysts

被引：13

作者：

Qiao, Yueyang ^{[1
]}

Cui, Jiayao ^{[2
,3
]}

Qian, Fangren ^{[4
]}

Xue, Xiaoyi ^{[1
]}

Zhang, Xiangping ^{[1
,2
]}

Zhang, Haitao ^{[2
]}

Liu, Wenqi ^{[5
]}

Li, Xiaojin ^{[5
]}

Chen, Qingjun ^{[1
,2
,4
,5
]}

机构：

[1] Zhengzhou Inst Emerging Ind Technol, Zhengzhou 450001, Peoples R China

[2] Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China

[3] Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China

[4] Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Jiangxi, Peoples R China

[5] Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

来源：

ACS APPLIED NANO MATERIALS | 2022年 / 5卷 / 01期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

Pt3Fe nanoparticles; hydrogen evolution reaction; all pH ranges; oxygen reduction reaction; electrocatalyst; CATALYSTS; CO; FRAMEWORKS; SITES;

D O I：

10.1021/acsanm.1c03046

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A critical issue in hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR) is to improve the activity and durability of Pt-based catalysts. In this study, a catalyst was prepared with Pt3Fe nanoparticles anchored on the B,N-codoped carbon (Pt3Fe/BNC) having significant HER activity in pH-universal electrolytes and significant ORR activity in acidic media. The as-prepared Pt3Fe/BNC catalyst exhibits notable HER catalytic activity with small overpotentials (eta) at j = 10 mA cm(-2) (eta = 24 mV in 1.0 M KOH, 72 mV in 1.0 M phosphate-buffered saline (PBS), 38 mV in 0.5 M H2SO4, respectively) and significant ORR performance with a half-wave potential (E-1/2) of 0.835 V in acidic media. Metal-B bonds are demonstrated to form at the interface between Pt3Fe alloys and the B,N-codoped carbon layer, in addition to abundant immobilized Pt3Fe alloys that boost the activity of Pt3Fe/BNC. This research provides a new strategy for designing Pt-based nanostructures to improve the HER performance at all pH ranges and ORR performance in acidic media.

引用

页码：318 / 325

页数：8

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