文献类型：期刊文献

英文题名：Oxygen reduction reaction kinetics of platinum-based catalysts under stress induction

作者：Jiang, Haibo[1];Lu, Jiyuan[1];Bi, Liyuan[1];Zhang, Lili[1];Yang, Jiajia[1];Liu, Cui[1];Yu, Shengwei[2];Shen, Jianhua[1];Zhu, Yihua[1]

机构：[1]East China Univ Sci & Technol, Key Lab Ultrafine Mat, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn,Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2025

卷号：61

期号：10

起止页码：2059

外文期刊名：CHEMICAL COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001392915600001)】；

基金：This work was supported by the National Natural Science Foundation of China (22178106, 22278136), Central Government Guiding Local Project of Department of Science and Technology of Tibet Autonomous Region (XZ202301YD0025C), the Science and Technology Commission of Shanghai Municipality (23ZR1416400, 22dz1205900), and the Fundamental Research Funds for the Central Universities (222201718002).

语种：英文

摘要：The ORR kinetic optimization for PtNi and PtPb catalysts is conferred by stress induction. First principles calculation shows the cleavage barrier reduction of the key intermediate *OOH to 28.48 and 0 kJ mol-1, respectively. Proper kinetic tuning led to a mass activity promotion of PtNi to 3.57 times that of Pt/C, whereas excessive modulation induced activity degradation for PtPb and shifted the rate-determining step to the first electron transfer, which was verified by in situ infrared spectroscopy and electrochemical characterization.