High-Entropy Intermetallic PtRhBiSnSb Nanoplates for Highly Efficient Alcohol Oxidation Electrocatalysis

Chen，Wen1,2; Luo，Shuiping2; Sun，Mingzi3; Wu，Xiaoyu2; Zhou，Yongsheng2; Liao，Yujia2; Tang，Min2; Fan，Xiaokun2; Huang，Bolong3; Quan，Zewei2

2022

10.1002/adma.202206276

ADVANCED MATERIALS   Impact Factor & Quartile

0935-9648

1521-4095

The control of multimetallic ensembles at the atomic-level is challenging, especially for high-entropy alloys (HEAs) possessing five or more elements. Herein, the one-pot synthesis of hexagonal-close-packed (hcp) PtRhBiSnSb high-entropy intermetallic (HEI) nanoplates with intrinsically isolated Pt, Rh, Bi, Sn, and Sb atoms is reported, to boost the electrochemical oxidation of liquid fuels. Taking advantage of these combined five metals, the well-defined PtRhBiSnSb HEI nanoplates exhibit a remarkable mass activity of 19.529, 15.558, and 7.535 A mg toward the electrooxidation of methanol, ethanol, and glycerol in alkaline electrolytes, respectively, representing a state-of-the-art multifunctional electrocatalyst for alcohol oxidation reactions. In particular, the PtRhBiSnSb HEI achieves record-high methanol oxidation reaction (MOR) activity in an alkaline environment. Theoretical calculations demonstrate that the introduction of the fifth metal Rh enhances the electron-transfer efficiency in PtRhBiSnSb HEI nanoplates, which contributes to the improved oxidation capability. Meanwhile, robust electronic structures of the active sites are achieved due to the synergistic protections from Bi, Sn, and Sb sites. This work offers significant research advances in developing well-defined HEA with delicate control over compositions and properties.

alcohol oxidation electrocatalysis high-entropy intermetallics nanoplates

SCI

English

NI Journal Papers

Corresponding

National Natural Science Foundation of China (NSFC)["52072166","52101259","21771156"] ; Guangdong Science and Technology Department["2016ZT06C279","2022A1515010918"] ; Shenzhen Science and Technology Innovation Committee["JCYJ20210324105008022","KQTD2016053019134356","RCJC2021060910444106"] ; NSFC/RGC Joint Research Scheme Project[N_PolyU502/21] ; Hong Kong Polytechnic University[1-ZE2V]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000860063000001

WILEY-V C H VERLAG GMBH

MATERIALS SCIENCE

2-s2.0-85138750450

Scopus

1.School of Chemistry and Chemical Engineering,Harbin Institute of Technology,Harbin,150001,China
2.Department of Chemistry and Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology (SUSTech),Shenzhen,Guangdong,518055,China
3.Department of Applied Biology and Chemical Technology,The Hong Kong Polytechnic University,Kowloon,999077,Hong Kong

Chen，Wen,Luo，Shuiping,Sun，Mingzi,et al. High-Entropy Intermetallic PtRhBiSnSb Nanoplates for Highly Efficient Alcohol Oxidation Electrocatalysis[J]. ADVANCED MATERIALS,2022.

Chen，Wen.,Luo，Shuiping.,Sun，Mingzi.,Wu，Xiaoyu.,Zhou，Yongsheng.,...&Quan，Zewei.(2022).High-Entropy Intermetallic PtRhBiSnSb Nanoplates for Highly Efficient Alcohol Oxidation Electrocatalysis.ADVANCED MATERIALS.

Chen，Wen,et al."High-Entropy Intermetallic PtRhBiSnSb Nanoplates for Highly Efficient Alcohol Oxidation Electrocatalysis".ADVANCED MATERIALS (2022).