| Photoelectrochemical reduction of CO2 catalyzed by a 3D core-shell NiMoO4@ZnO heterojunction with bicentre at the (111) plane and thermal electron assistance | |
Cao, Youzhi1; Wei, Yan1; Wan, Wenrui1; Liu, Chunyan1; Zhuang, Changwan1; Gong, Can1; Nan, Linhong1; Zhang, QL(张巧兰)1 ; Gao, H(高红)1; Chen, Jiazang2; Jing, HW(景欢旺)1,2 | |
| 2023-02-21 | |
| Source Publication | JOURNAL OF MATERIALS CHEMISTRY A
 |
| ISSN | 2050-7488 |
| Volume | 11Issue:8 |
| Abstract | The photoelectrochemical (PEC) reduction of CO2 into organic chemicals on the semiconductor is considered a feasible plan to address the global energy crisis and climate warming. Herein, the heterojunctions NiMoO4/ZnO-x are designed and synthesized. The nanosheets of NiMoO4 have excellent absorption of photons and benefit the C-C coupling to C2 compounds. The ZnO/C core fabricated from MOF rich in CN species harvests light to generate a lot of thermal electrons assisting CO2 reduction. Benefitting from its unique chemical properties and structure, the as-prepared NiMoO4/ZnO-3 heterojunction exhibited impressive performance in CO2 reduction, yielding oxygenated chemicals with 72.6% selectivity for C2 products at a rate of 29.2 mu M cm(-2) h(-1). The formation rate under photoelectrochemical conduction is three times that of photocatalysis plus electrocatalysis, showing a strong synergetic effect of photo- and electro-catalysis. The isotopic labeling experiments of (CO2)-C-13 verified that the products are derived from CO2 and water. Finally, a new catalytic mechanism with bimetallic centers is proposed firstly to explain the reaction pathways with high selectivity of C2 chemicals. The important intermediates and the C-C coupling via Ni-Mo bicentre are proven by density-functional theory (DFT) calculations and verified by operando Fourier transform infrared (FTIR) spectrometry. On the other hand, the effect of thermal electrons is investigated as well. |
| Publisher | ROYAL SOC CHEMISTRY |
| DOI | 10.1039/d2ta09055d |
| Indexed By | SCIE |
| Language | 英语 |
| WOS Research Area | Chemistry ; Energy & Fuels ; Materials Science |
| WOS Subject | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000921918300001 |
| Original Document Type | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/499459 |
| Collection | 化学化工学院 |
| Corresponding Author | Zhang, Qiaolan; Gao, Hong; Jing, Huanwang |
| Affiliation | 1.Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, 222 South Tianshui Rd, Lanzhou 730000, Peoples R China; 2.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China |
| First Author Affilication | College of Chemistry and Chemical Engineering |
| Corresponding Author Affilication | College of Chemistry and Chemical Engineering |
| Recommended Citation GB/T 7714 | Cao, Youzhi,Wei, Yan,Wan, Wenrui,et al. Photoelectrochemical reduction of CO2 catalyzed by a 3D core-shell NiMoO4@ZnO heterojunction with bicentre at the (111) plane and thermal electron assistance[J]. JOURNAL OF MATERIALS CHEMISTRY A,2023,11(8). |
| APA | Cao, Youzhi.,Wei, Yan.,Wan, Wenrui.,Liu, Chunyan.,Zhuang, Changwan.,...&Jing, Huanwang.(2023).Photoelectrochemical reduction of CO2 catalyzed by a 3D core-shell NiMoO4@ZnO heterojunction with bicentre at the (111) plane and thermal electron assistance.JOURNAL OF MATERIALS CHEMISTRY A,11(8). |
| MLA | Cao, Youzhi,et al."Photoelectrochemical reduction of CO2 catalyzed by a 3D core-shell NiMoO4@ZnO heterojunction with bicentre at the (111) plane and thermal electron assistance".JOURNAL OF MATERIALS CHEMISTRY A 11.8(2023). |
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