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Lewis acid activating CO2 reduction over Ni modified Ni-Ge hydroxide driven by visible-infrared light

Abstract

Improvement of light harvesting and reaction kinetics is of great importance for achieving efficient solar-driven CO2 reduction. Here, Ni modified low-crystalline Ni-Ge containing hydroxide with the Lewis acid sites was synthesized in highly reductive NaBH4 solution and exhibited 9.3 μmol gcat.-1 h-1 CO and 3.5 μmol gcat.-1 h-1 CH4 generation rates under visible light irradiation, and even achieved a 3.8 μmol gcat.-1 h-1 CO evolution under infrared light irradiation. The wide-spectrum light harvesting resulted from the light absorption from the localized surface plasmonic resonance of Ni nanoparticles. In addition, the Lewis acid can activate C=O bonds to decrease the kinetic barriers of CO2 reduction. The design concept that rationally combines the advantages of expanding the spectral response and activating CO2 may offer a new strategy for efficient solar energy utilization.

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Publication details

The article was received on 06 Nov 2018, accepted on 04 Dec 2018 and first published on 04 Dec 2018


Article type: Paper
DOI: 10.1039/C8DT04408B
Citation: Dalton Trans., 2018, Accepted Manuscript
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    Lewis acid activating CO2 reduction over Ni modified Ni-Ge hydroxide driven by visible-infrared light

    Z. Xin, L. Lu, B. Wang, X. Wang, K. Zhu, Z. xu, Z. Yu, S. C. Yan and Z. Zou, Dalton Trans., 2018, Accepted Manuscript , DOI: 10.1039/C8DT04408B

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