@article{3827656f7e22401389cfb05b902f597c,
title = "High pressure nitrogen-infused ultrastable fuel cell catalyst for oxygen reduction reaction",
abstract = "The mass activity of a Pt-based catalyst can be sustained throughout the fuel cell vehicle life by optimizing its stability under the conditions of an oxygen reduction reaction (ORR) that drives the cells. Here, we demonstrate improvement in the stability of a readily available PtCo core-shell nanoparticle catalyst over 1 million cycles by maintaining its electrochemical surface area by regulating the amount of nitrogen doped into the nanoparticles. The high pressure nitrogen-infused PtCo/C catalyst exhibited a 2-fold increase in mass activity and a 5-fold increase in durability compared with commercial Pt/C, exhibiting a retention of 80% of the initial mass activity after 180 000 cycles and maintaining the core- shell structure even after 1 000 000 cycles of accelerated stress tests. Synchrotron studies coupled with pair distribution function analysis reveal that inducing a higher amount of nitrogen in core-shell nanoparticles increases the catalyst durability.",
keywords = "Core-shell nanostructures, Electrocatalyst, Fuel cell, Nitrogen doping, Oxygen reduction",
author = "Eunjik Lee and Kuttiyiel, {Kurian A.} and Kim, {Kyoung Hee} and Jeongyun Jang and Lee, {Hyo J.} and Lee, {Jong M.} and Seo, {Min H.} and Yang, {Tae Hyun} and Yim, {Sung Dae} and Vargas, {Jorge A.} and Valeri Petkov and Kotaro Sasaki and Adzic, {Radoslav R.} and Park, {Gu Gon}",
note = "Funding Information: This study was supported by the Industrial Strategic Technology Development Program (NP2020-0040) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea) and the Korea Institute of Energy Research (C1-2417). The Fuel Cell Research & Demonstration Centre acknowledges support from a National Research Foundation of Korea Grant funded by the Korean Government [NRF-2017R1D1A1B04031539]. This article has also been authored by employees/guests of Brookhaven Science Associates, LLC, under Contract No. DE-SC0012704 with the U.S. Department of Energy. This research used resources of the ISS (8-ID) and QAS (7-BM) beamlines of the National Synchrotron Light Source II, which are U.S. DOE Office of Science Facilities, at Brookhaven National Laboratory, under Contract was also supported in part by “DE-SC0006877 grant”. Publisher Copyright: {\textcopyright} 2021 The Authors. Published by American Chemical Society.",
year = "2021",
month = may,
day = "7",
doi = "10.1021/acscatal.1c00395",
language = "English",
volume = "11",
pages = "5525--5531",
journal = "ACS Catalysis",
issn = "2155-5435",
publisher = "ACS CATALYSIS",
number = "9",
}