TY - JOUR
T1 - The self-complementary effect through strong orbital coupling in ultrathin high-entropy alloy nanowires boosting pH-universal multifunctional electrocatalysis
AU - Li, Hongdong
AU - Sun, Mingzi
AU - Pan, Yue
AU - Xiong, Juan
AU - Du, Haoyang
AU - Yu, Yaodong
AU - Feng, Shouhua
AU - Li, Zhenjiang
AU - Lai, Jianping
AU - Huang, Bolong
AU - Wang, Lei
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China ( 51772162 , 22001143 , 52072197 , 21771156 ), the National Key R&D Program of China ( 2021YFA1501101 ), Youth Innovation and Technology Foundation of Shandong Higher Education Institutions , China ( 2019KJC004 ), Outstanding Youth Foundation of Shandong Province , China ( ZR2019JQ14 ), Taishan Scholar Young Talent Program ( tsqn201909114 , tsqn201909123 ), Natural Science Foundation of Shandong Province ( ZR2020YQ34 ), Major Scientific and Technological Innovation Project ( 2019JZZY020405 ), and Major Basic Research Program of Natural Science Foundation of Shandong Province under Grant ( ZR2020ZD09 ) and the NSFC/RGC Joint Research Scheme Project ( N_PolyU502/21 ), and the funding for Projects of Strategic Importance of The Hong Kong Polytechnic University (Project Code: 1-ZE2V ).
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/9/5
Y1 - 2022/9/5
N2 - Rational control of the compositions, morphologies and sizes of electrocatalyst are the key factors for achieving high performance of electrocatalytic reactions. Herein, a newly ultrathin PtRuRhCoNi high-entropy alloy nanowires (HEA-NWs) (~1.6 nm) catalyst is designed. The PtRuRhCoNi NWs/C achieved high mass activity of 7.68 A mg−1PtRuRh, ultrahigh C1 selectivity of 78% for ethanol oxidation reaction. For hydrogen evolution reaction, the PtRuRhCoNi NWs/C also reached high mass activity, turnover frequency (11.99 A mg−1PtRuRh, 31.9 s−1, 0.5 M H2SO4 and 8.07 A mg−1PtRuRh, 26.7 s−1, 1 M KOH at −0.05 V vs. RHE) and stability. Theoretical calculations demonstrated that the excellent electroactivity of HEA is benefited by the self-complementary effect through strong orbital coupling, which maximized the electroactivity towards both oxidation and reduction and preferred binding of key intermediate. The design of pH-universal multifunctional catalyst by rational control of the compositions, morphologies and sizes strategy can facilitate the research of advanced catalysts.
AB - Rational control of the compositions, morphologies and sizes of electrocatalyst are the key factors for achieving high performance of electrocatalytic reactions. Herein, a newly ultrathin PtRuRhCoNi high-entropy alloy nanowires (HEA-NWs) (~1.6 nm) catalyst is designed. The PtRuRhCoNi NWs/C achieved high mass activity of 7.68 A mg−1PtRuRh, ultrahigh C1 selectivity of 78% for ethanol oxidation reaction. For hydrogen evolution reaction, the PtRuRhCoNi NWs/C also reached high mass activity, turnover frequency (11.99 A mg−1PtRuRh, 31.9 s−1, 0.5 M H2SO4 and 8.07 A mg−1PtRuRh, 26.7 s−1, 1 M KOH at −0.05 V vs. RHE) and stability. Theoretical calculations demonstrated that the excellent electroactivity of HEA is benefited by the self-complementary effect through strong orbital coupling, which maximized the electroactivity towards both oxidation and reduction and preferred binding of key intermediate. The design of pH-universal multifunctional catalyst by rational control of the compositions, morphologies and sizes strategy can facilitate the research of advanced catalysts.
KW - Electrocatalysis
KW - Electronic effect
KW - High entropy materials
KW - Morphology
KW - Size
UR - https://www.scopus.com/pages/publications/85129205727
U2 - 10.1016/j.apcatb.2022.121431
DO - 10.1016/j.apcatb.2022.121431
M3 - Journal article
AN - SCOPUS:85129205727
SN - 0926-3373
VL - 312
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
M1 - 121431
ER -