TY - JOUR
T1 - Subnanometer high-entropy alloy nanowires enable remarkable hydrogen oxidation catalysis
AU - Zhan, Changhong
AU - Xu, Yong
AU - Bu, Lingzheng
AU - Zhu, Huaze
AU - Feng, Yonggang
AU - Yang, Tang
AU - Zhang, Ying
AU - Yang, Zhiqing
AU - Huang, Bolong
AU - Shao, Qi
AU - Huang, Xiaoqing
N1 - Funding Information:
This work was financially supported by the National Key R&D Program of China (2020YFB1505802), the Ministry of Science and Technology (2017YFA0208200, 2016YFA0204100), the National Natural Science Foundation of China (22025108 and 51802206), the Guangdong Provincial Natural Science Fund for Distinguished Young Scholars (2021B1515020081), and the start-up support from Xiamen University.
Publisher Copyright:
© 2021, The Author(s).
PY - 2021/12/1
Y1 - 2021/12/1
N2 - High-entropy alloys (HEAs) with unique physicochemical properties have attracted tremendous attention in many fields, yet the precise control on dimension and morphology at atomic level remains formidable challenges. Herein, we synthesize unique PtRuNiCoFeMo HEA subnanometer nanowires (SNWs) for alkaline hydrogen oxidation reaction (HOR). The mass and specific activities of HEA SNWs/C reach 6.75 A mgPt+Ru−1 and 8.96 mA cm−2, respectively, which are 2.8/2.6, 4.1/2.4, and 19.8/18.7 times higher than those of HEA NPs/C, commercial PtRu/C and Pt/C, respectively. It can even display enhanced resistance to CO poisoning during HOR in the presence of 1000 ppm CO. Density functional theory calculations reveal that the strong interactions between different metal sites in HEA SNWs can greatly regulate the binding strength of proton and hydroxyl, and therefore enhances the HOR activity. This work not only provides a viable synthetic route for the fabrication of Pt-based HEA subnano/nano materials, but also promotes the fundamental researches on catalysis and beyond.
AB - High-entropy alloys (HEAs) with unique physicochemical properties have attracted tremendous attention in many fields, yet the precise control on dimension and morphology at atomic level remains formidable challenges. Herein, we synthesize unique PtRuNiCoFeMo HEA subnanometer nanowires (SNWs) for alkaline hydrogen oxidation reaction (HOR). The mass and specific activities of HEA SNWs/C reach 6.75 A mgPt+Ru−1 and 8.96 mA cm−2, respectively, which are 2.8/2.6, 4.1/2.4, and 19.8/18.7 times higher than those of HEA NPs/C, commercial PtRu/C and Pt/C, respectively. It can even display enhanced resistance to CO poisoning during HOR in the presence of 1000 ppm CO. Density functional theory calculations reveal that the strong interactions between different metal sites in HEA SNWs can greatly regulate the binding strength of proton and hydroxyl, and therefore enhances the HOR activity. This work not only provides a viable synthetic route for the fabrication of Pt-based HEA subnano/nano materials, but also promotes the fundamental researches on catalysis and beyond.
UR - http://www.scopus.com/inward/record.url?scp=85118433830&partnerID=8YFLogxK
U2 - 10.1038/s41467-021-26425-2
DO - 10.1038/s41467-021-26425-2
M3 - Journal article
C2 - 34716289
AN - SCOPUS:85118433830
SN - 2041-1723
VL - 12
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 6261
ER -