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https://hdl.handle.net/2440/121604
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Type: | Journal article |
Title: | Zn phthalocyanine/carbon nitride heterojunction for visible light photoelectrocatalytic conversion of CO₂ to methanol |
Author: | Zheng, J. Li, X. Qin, Y. Zhang, S. Sun, M. Duan, X. Sun, H. Li, P. Wang, S. |
Citation: | Journal of Catalysis, 2019; 371:214-223 |
Publisher: | Elsevier |
Issue Date: | 2019 |
ISSN: | 0021-9517 1090-2694 |
Statement of Responsibility: | Jingui Zheng, Xiaojie Li, Yuhu Qin, Shuqin Zhang, Mingsheng Sun, Xiaoguang Duan, Hongqi Sun, Peiqiang Li, Shaobin Wang |
Abstract: | Zinc phthalocyanine/carbon nitride nanosheets photoelectrocatalysts were obtained by evaporation and calcination of the mixture of ZnPc and carbon nitride. It exhibits highly efficient synergistic function between PC-CO₂RR and EC-CO₂RR. The energy band matching between the ZnPc and carbon nitride results in the faster electrons transfer and less electron-hole pairs recombination. The optimized ZnPc/carbon nitride at a ratio of 0.1 wt% demonstrates high efficiency in photoelectrocalytic reduction of CO₂ under visible light, generating a major product of methanol at a yield of 13 μmol·cm⁻² after 8 h. The efficiency of photoelectrocalytic reduction of CO₂ to methanol is 2.6 times as high as that of electrocatalytic CO₂ reduction reaction, and 5.9 times as high as that of photocatalytic CO₂ reduction reaction. The mechanism of the photoelectrocatalytic CO₂ reduction reaction to methanol was discussed in detail. |
Keywords: | Photoelectrocatalysis; CO₂ reduction; zinc phthalocyanine; carbon nitride; methanol |
Rights: | © 2019 Elsevier Inc. All rights reserved. |
DOI: | 10.1016/j.jcat.2019.01.022 |
Grant ID: | http://purl.org/au-research/grants/arc/DP170104264 |
Published version: | http://dx.doi.org/10.1016/j.jcat.2019.01.022 |
Appears in Collections: | Aurora harvest 4 Chemical Engineering publications |
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