兰州大学机构库 >化学化工学院
p-n heterojunctions of Si@WO3 mimicking thylakoid for photoelectrocatalytic CO2 reduction to C2+ products — Morphology control
Wan, Wenrui; Zhang, QL(张巧兰); Wei, Yan; Cao, Youzhi; Hou, Jiaxiu; Liu, Chunyan; Hong, Lin; Gao, H(高红); Chen, Jiazang; Jing, HW(景欢旺)
2023-02-15
Source PublicationCHEMICAL ENGINEERING JOURNAL   Impact Factor & Quartile Of Published Year  The Latest Impact Factor & Quartile
ISSN1385-8947
Volume454
AbstractThe photoelectrocatalytic reduction of CO2 to high value-added chemicals is considered as one of the most promising technologies for solving both environmental and energy issues of the planet. Here, p-n heterojunction nanowires Si@WO3-x derived from p-silicon wafer modified by tungsten trioxide with different morphologies, including nanosheets (NS), nanobulks (NB) and nanoneedles (NN), were designed and fabricated. The Si@WO3-NS heterojunction gives the highest apparent quantum efficiency of light (0.49 % AQE) excluding the contribution of electrons from anode (>0.4 % QE of nature plant), which is nearly 25 times than that of pure Si NW (0.02 % AQE). The selectivity of multicarbon products (C2+) for Si@WO3-NS catalyst reaches 62.7 %, benefiting from the morphology simulated to the structure of thylakoid in plants. Moreover, the mechanism was proposed and confirmed by operando FT-IR experiments indicating the existence of active species COO−, HCOO−, C−O and C−C, respectively. This engineering design for Si-based material simulated plant cell can firstly produce C2+ chemicals without assistance of copper particles known as good catalyst or co-catalyst for C−C coupling. © 2022
KeywordCarbon dioxide Catalyst selectivity Cell engineering Environmental technology Heterojunctions Morphology Silicon compounds Silicon wafers Tungsten compounds CO 2 reduction Morphology control P-n heterojunctions Photo-electrocatalysis Photoelectrocatalysis Photoelectrocatalytic Product morphology Sustainable chemistry Thylakoids ]+ catalyst
PublisherElsevier B.V.
DOI10.1016/j.cej.2022.140122
Indexed ByEI
Language英语
EI Accession Number20224513072440
EI KeywordsSustainable chemistry
EI Classification Number454 Environmental Engineering ; 461.1 Biomedical Engineering ; 714.2 Semiconductor Devices and Integrated Circuits ; 802.2 Chemical Reactions ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 804.2 Inorganic Compounds ; 931.2 Physical Properties of Gases, Liquids and Solids ; 951 Materials Science
Original Document TypeJournal article (JA)
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/491574
Collection化学化工学院
高等教育研究院
Corresponding AuthorZhang, Qiaolan
Affiliation
Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Special Function Materials and Structure Design, Ministry of Education, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou; 730000, China
First Author AffilicationCollege of Chemistry and Chemical Engineering
Corresponding Author AffilicationCollege of Chemistry and Chemical Engineering
First Signature AffilicationCollege of Chemistry and Chemical Engineering
Recommended Citation
GB/T 7714
Wan, Wenrui,Zhang, Qiaolan,Wei, Yan,et al. p-n heterojunctions of Si@WO3 mimicking thylakoid for photoelectrocatalytic CO2 reduction to C2+ products — Morphology control[J]. CHEMICAL ENGINEERING JOURNAL,2023,454.
APA Wan, Wenrui.,Zhang, Qiaolan.,Wei, Yan.,Cao, Youzhi.,Hou, Jiaxiu.,...&Jing, Huanwang.(2023).p-n heterojunctions of Si@WO3 mimicking thylakoid for photoelectrocatalytic CO2 reduction to C2+ products — Morphology control.CHEMICAL ENGINEERING JOURNAL,454.
MLA Wan, Wenrui,et al."p-n heterojunctions of Si@WO3 mimicking thylakoid for photoelectrocatalytic CO2 reduction to C2+ products — Morphology control".CHEMICAL ENGINEERING JOURNAL 454(2023).
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