Mechanochemical Synthesis of High Entropy Oxide Materials under Ambient Conditions: Dispersion of Catalysts via Entropy Maximization

Hao Chen; Wenwen Lin; Zihao Zhang; Kecheng Jie; David R. Mullins; Xiahan Sang; Shi Ze Yang; Charl J. Jafta; Craig A. Bridges; Xiaobing Hu; Raymond R. Unocic; Jie Fu; Pengfei Zhang; Sheng Dai

doi:10.1021/acsmaterialslett.9b00064

Mechanochemical Synthesis of High Entropy Oxide Materials under Ambient Conditions: Dispersion of Catalysts via Entropy Maximization

Hao Chen, Wenwen Lin, Zihao Zhang, Kecheng Jie, David R. Mullins, Xiahan Sang, Shi Ze Yang, Charl J. Jafta, Craig A. Bridges, Xiaobing Hu, Raymond R. Unocic, Jie Fu, Pengfei Zhang, Sheng Dai

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211 Scopus citations

Abstract

The solid-solution metal oxide (NiMgCuZnCo)O is the first known high-entropy (HE) metal oxide synthesized, forming a poster child of the emerging high-entropy oxide materials, which is derived from high-temperature synthesis methodologies (>900 °C). In this work, we report the mechanochemical synthesis of this known HE metal oxide (NiMgCuZnCo)O under ambient conditions. The advantage of this approach was further demonstrated by the introduction of up to 5 wt % noble metal into (NiMgCuZnCo)O, as single atoms or nanoclusters, which showed good stability at high temperature and produced a high catalytic activity in the hydrogenation of atmospheric CO₂ to CO. The latter work demonstrated the unique advantage of using HE materials to disperse catalysis centers.

Original language	English
Pages (from-to)	83-88
Number of pages	6
Journal	ACS Materials Letters
Volume	1
Issue number	1
DOIs	https://doi.org/10.1021/acsmaterialslett.9b00064
State	Published - Jul 1 2019

Funding

The catalysis synthesis and testing (H. C., P. Z., S. D.) were supported by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy. Structural characterization (C. J. and C. B.) was supported by the U.S. DOE, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. Electron microscopy work was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. The Microscopy was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. J. F. was supported by the National Natural Science Foundation of China (No. 21436007, 21706228) and the Zhejiang Provincial Natural Science Foundation of China (No. LR17B060002).

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Chen, H., Lin, W., Zhang, Z., Jie, K., Mullins, D. R., Sang, X., Yang, S. Z., Jafta, C. J., Bridges, C. A., Hu, X., Unocic, R. R., Fu, J., Zhang, P., & Dai, S. (2019). Mechanochemical Synthesis of High Entropy Oxide Materials under Ambient Conditions: Dispersion of Catalysts via Entropy Maximization. ACS Materials Letters, 1(1), 83-88. https://doi.org/10.1021/acsmaterialslett.9b00064

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title = "Mechanochemical Synthesis of High Entropy Oxide Materials under Ambient Conditions: Dispersion of Catalysts via Entropy Maximization",

abstract = "The solid-solution metal oxide (NiMgCuZnCo)O is the first known high-entropy (HE) metal oxide synthesized, forming a poster child of the emerging high-entropy oxide materials, which is derived from high-temperature synthesis methodologies (>900 °C). In this work, we report the mechanochemical synthesis of this known HE metal oxide (NiMgCuZnCo)O under ambient conditions. The advantage of this approach was further demonstrated by the introduction of up to 5 wt \% noble metal into (NiMgCuZnCo)O, as single atoms or nanoclusters, which showed good stability at high temperature and produced a high catalytic activity in the hydrogenation of atmospheric CO2 to CO. The latter work demonstrated the unique advantage of using HE materials to disperse catalysis centers.",

author = "Hao Chen and Wenwen Lin and Zihao Zhang and Kecheng Jie and Mullins, \{David R.\} and Xiahan Sang and Yang, \{Shi Ze\} and Jafta, \{Charl J.\} and Bridges, \{Craig A.\} and Xiaobing Hu and Unocic, \{Raymond R.\} and Jie Fu and Pengfei Zhang and Sheng Dai",

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doi = "10.1021/acsmaterialslett.9b00064",

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Chen, H, Lin, W, Zhang, Z, Jie, K, Mullins, DR, Sang, X, Yang, SZ, Jafta, CJ, Bridges, CA, Hu, X, Unocic, RR, Fu, J, Zhang, P & Dai, S 2019, 'Mechanochemical Synthesis of High Entropy Oxide Materials under Ambient Conditions: Dispersion of Catalysts via Entropy Maximization', ACS Materials Letters, vol. 1, no. 1, pp. 83-88. https://doi.org/10.1021/acsmaterialslett.9b00064

TY - JOUR

T1 - Mechanochemical Synthesis of High Entropy Oxide Materials under Ambient Conditions

T2 - Dispersion of Catalysts via Entropy Maximization

AU - Chen, Hao

AU - Lin, Wenwen

AU - Zhang, Zihao

AU - Jie, Kecheng

AU - Mullins, David R.

AU - Sang, Xiahan

AU - Yang, Shi Ze

AU - Jafta, Charl J.

AU - Bridges, Craig A.

AU - Hu, Xiaobing

AU - Unocic, Raymond R.

AU - Fu, Jie

AU - Zhang, Pengfei

AU - Dai, Sheng

PY - 2019/7/1

Y1 - 2019/7/1

N2 - The solid-solution metal oxide (NiMgCuZnCo)O is the first known high-entropy (HE) metal oxide synthesized, forming a poster child of the emerging high-entropy oxide materials, which is derived from high-temperature synthesis methodologies (>900 °C). In this work, we report the mechanochemical synthesis of this known HE metal oxide (NiMgCuZnCo)O under ambient conditions. The advantage of this approach was further demonstrated by the introduction of up to 5 wt % noble metal into (NiMgCuZnCo)O, as single atoms or nanoclusters, which showed good stability at high temperature and produced a high catalytic activity in the hydrogenation of atmospheric CO2 to CO. The latter work demonstrated the unique advantage of using HE materials to disperse catalysis centers.

AB - The solid-solution metal oxide (NiMgCuZnCo)O is the first known high-entropy (HE) metal oxide synthesized, forming a poster child of the emerging high-entropy oxide materials, which is derived from high-temperature synthesis methodologies (>900 °C). In this work, we report the mechanochemical synthesis of this known HE metal oxide (NiMgCuZnCo)O under ambient conditions. The advantage of this approach was further demonstrated by the introduction of up to 5 wt % noble metal into (NiMgCuZnCo)O, as single atoms or nanoclusters, which showed good stability at high temperature and produced a high catalytic activity in the hydrogenation of atmospheric CO2 to CO. The latter work demonstrated the unique advantage of using HE materials to disperse catalysis centers.

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Mechanochemical Synthesis of High Entropy Oxide Materials under Ambient Conditions: Dispersion of Catalysts via Entropy Maximization

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