Chemistry

Tuning the activities of cuprous oxide nanostructures via the oxide-metal interaction

W. Huang, Q. Liu, et al.

This research reveals groundbreaking insights into the interplay between oxide-metal interactions and the catalytic properties of cuprous oxide nanostructures supported on various metal substrates. Conducted by Wugen Huang and colleagues, the study shows how Cu₂O's performance can vary significantly across different metals, paving the way for advanced catalyst design.

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Abstract

This research investigates the impact of oxide-metal interaction (OMI) on the activity and stability of cuprous oxide (Cu₂O) nanostructures (NSs) supported on different metal substrates (Pt, Ag, Au). The study reveals that Cu₂O/Pt exhibits lower thermal stability but higher catalytic activity for CO oxidation compared to Cu₂O/Ag and Cu₂O/Au. OMI, characterized by the formation energy of interfacial oxygen vacancies and the electronic interaction between Cu⁺ and the metal substrate (quantified by the d-band center), is identified as the key factor determining both activity and stability. The findings provide insights into OMI and offer a strategy for designing Cu-based catalysts for low-temperature oxidation reactions.

Publisher

Nature Communications

Published On

May 08, 2020

Authors

Wugen Huang, Qingfei Liu, Zhiwen Zhou, Yangsheng Li, Yunjian Ling, Yong Wang, Yunchuan Tu, Beibei Wang, Xiaohong Zhou, Dehui Deng, Bo Yang, Yong Yang, Zhi Liu, Xinhe Bao, Fan Yang

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