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Enhanced CO 2 Reduction Performance of BiCuSeO‐Based Hybrid Catalysts by Synergetic Photo‐Thermoelectric Effect
Author(s) -
Xu Yushuai,
Han Jian,
Luo Yidong,
Liu Yaochun,
Ding Junping,
Zhou Zhifang,
Liu Chan,
Zou Mingchu,
Lan Jinle,
Nan Cewen,
Lin Yuanhua
Publication year - 2021
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202105001
Subject(s) - materials science , thermoelectric effect , nanorod , photocatalysis , optoelectronics , catalysis , heterojunction , thermoelectric materials , chemical engineering , nanotechnology , composite material , thermal conductivity , thermodynamics , biochemistry , chemistry , physics , engineering
Gaseous CO 2 reduction driven by solar energy is a promising solution to the current energy crisis and environmental problems. Although thermocatalysts, electrocatalysts, and photocatalysts are developed as classical strategies for CO 2 reduction, it remains a challenge for high efficiency and CO 2 net reduction during this process. Here, a multi‐field driven hybrid catalyst, Pt/ZnO nanorod arrays/Bi 1‐x Er x CuSeO, is designed using the photo‐thermoelectric effect, which can take advantage of both photocatalysis and thermocatalysis. The results indicate that the maximum CO production rate of 2.91 µmol g −1 h −1 at 423 K can be realized in such Pt/ZnONR/Bi 0.9 Er 0.1 CuSeO hybrid catalyst, as can be ascribed to a synergetic photo‐thermoelectric effect (i.e., light irradiation can provide heat, photo‐excited carriers, and the concomitant Seebeck voltage). The band alignment of ZnO/BiCuSeO heterojunction and carriers transport are proposed to be optimized by the Er doped BiCuSeO thermoelectric supports, greatly enhancing the catalytic performance. The application of thermoelectric support could be promising in the structure design of multi‐field driven hybrid catalysts, and such a photo‐thermoelectric catalytic process demonstrates a desirable way of solar energy utilization in CO 2 transformation.