@article{457fe7a538a74e049e871933cc373f50,
title = "Segmented Au/PtCo heterojunction nanowires for efficient formic acid oxidation catalysis",
abstract = "Exploring a new strategy for the removal of adsorbed CO (CO*) on a Pt surface at a low potential is the key to achieving enhanced catalysis for the formic acid oxidation reaction (FAOR); however, the development of such a strategy remains a significant challenge. Herein, we report a class of Au/PtCo heterojunction nanowires (HNWs) as efficient electrocatalysts for accelerating the FAOR. This heterojunction structure and the induced Co alloying effects can facilitate formic acid adsorption/activation on Pt with high CO tolerance, generating the FAOR pathway from dehydration to dehydrogenation. The optimized Au23/Pt63Co14 HNWs showed the highest specific and mass activities of 11.7 mA cm−2Pt and 6.42 A mg−1Pt reported to date, respectively, which are considerably higher than those of commercial Pt/C. DFT calculations confirmed that the electron-rich Au segment enhances the electronic activity of the PtCo NWs, which not only allows the construction of a highly efficient electron transfer channel for the FAOR but also suppresses CO formation.",
keywords = "Electrocatalysis, Formic acid oxidation reaction, Heterojunction structure, Nanowires, Pt-based catalyst",
author = "Yingjun Sun and Bolong Huang and Yingjie Li and Yingnan Qin and Ziqi Fu and Mingzi Sun and Lei Wang and Shaojun Guo",
note = "Funding Information: Shaojun Guo is a full professor with tenure in the School of Materials Science and Engineering, Peking University, and a Fellow of the Royal Society of Chemistry. He holds a BS in Materials Chemistry (2005) from Jilin University and a PhD in Analytical Chemistry (2011) from Changchun Institute of Applied Chemistry, Chinese Academy of Sciences. He is renowned for his leadership in nano/sub-nano/atomic materials for catalysis and energy applications. He has made outstanding contribution to the interdisciplinary fields of materials chemistry for energy electrocatalysis. He has published more than 150 papers in top journals as corresponding author, including 19 in Nature, Science and Nature/Science/Cell sister journals (h-index = 109 and 40,000 citations). He is one of World Highly Cited Researchers from 2014 to 2020, and World Top 2% Scientist (Stanford University). He has been honored with numerous awards, including Xplorer Prize, National Science Fund for Distinguished Young Scholars, China Youth Science and Technology Prize, Beijing Science Foundation for Distinguished Young Scholar, Elsevier Chinese Most Cited Researcher, etc. He is serving as more than ten (advisory) board members of EnergyChem, eScience, Chem. Commun., Science Bulletin, Science China Materials, etc. Funding Information: The authors are grateful for the financial support of this work from the National Science Fund for Distinguished Young Scholars (No. 52025133 ), Tencent Foundation through the XPLORER PRIZE, the Beijing Natural Science Foundation (JQ18005), Young Thousand Talented Program, and Postdoctoral Science Foundation of China. (2020M680200). Publisher Copyright: {\textcopyright} 2021",
year = "2021",
month = jul,
doi = "10.1016/j.fmre.2021.06.016",
language = "English",
volume = "1",
pages = "453--460",
journal = "Fundamental Research",
issn = "2667-3258",
publisher = "Elsevier BV",
number = "4",
}