兰州大学机构库
Molecular confined synthesis of magnetic CoOx /Co/C hybrid catalyst for photocatalytic water oxidation and CO2 reduction
Li, Rui1; Zhang, Chenchen1; You, Kejia1; Li, Bonan1; Bu, Wei1; Meng, Xiangyu1,3; Ma, Baochun1; Ding, Y(丁勇)1,2
2023-12
Online publication date2023-09
Source PublicationCHINESE CHEMICAL LETTERS   Impact Factor & Quartile
ISSN1001-8417 ; 1878-5964
EISSN1878-5964
Volume34Issue:12
page numbers5
AbstractPhotosynthesis [6CO2 + 12H2O -> (CH2O)6 + 6O 2 + 6H2O] in nature contains a light reaction process for oxygen evolution and a dark reaction process for carbon dioxide (CO2) reduction to carbohydrates, which is of great significance for the survival of living matter. Therefore, for simulating photosynthesis, it is desirable to design and fabricate a bifunctional catalyst for promoting photocatalytic water oxidation and CO2 reduction performances. Herein, a molecular confined synthesis strategy is reasonably proposed and applied, that is the bifunctional CoOx /Co/C-T ( T = 70 0, 80 0 and 900 degrees C) photocatalysts prepared by the pyrolysis of molecular Co-EDTA under N 2 and air atmosphere in turn. Among the prepared photocatalysts, the CoOx /Co/C-80 0 shows the best photocatalytic water oxidation activity with an oxygen yield of 51.2%. In addition, for CO2 reduction reaction, the CO evolution rate of 12.6 mu mol/h and selectivity of 75% can be achieved over this catalyst. The improved photocatalytic activities are attributed to the rapid electron transfer between the photosensitizer and the catalyst, which is strongly supported by the current density-voltage ( j-V ), steady-state and time-resolved photoluminescence spectra (PL). Overall, this work provides a reference for the preparation and optimization of photocatalysts with the capacity for water oxidation and CO2 reduction reactions.(c) 2023 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.
KeywordCoO x /Co/C Water oxidation CO 2 reduction Photocatalyst Photosensitizer
PublisherELSEVIER SCIENCE INC
DOI10.1016/j.cclet.2023.108801
Indexed BySCIE
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:001081253600001
Original Document TypeArticle
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/569013
Collection兰州大学
化学化工学院
Corresponding AuthorMeng, Xiangyu; Ding, Yong
Affiliation
1.Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Key Lab Adv Catalysis Gansu Prov, Lanzhou 730000, Peoples R China;
2.Chinese Acad Sci, State Key Lab Oxo Synth & Select Oxidat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China;
3.Huanghe Sci & Technol Coll, Inst Nanostruct Funct Mat, Henan Prov Key Lab Nanocomposites & Applicat, Zhengzhou 450006, Peoples R China
First Author AffilicationCollege of Chemistry and Chemical Engineering
Corresponding Author AffilicationCollege of Chemistry and Chemical Engineering
Recommended Citation
GB/T 7714
Li, Rui,Zhang, Chenchen,You, Kejia,et al. Molecular confined synthesis of magnetic CoOx /Co/C hybrid catalyst for photocatalytic water oxidation and CO2 reduction[J]. CHINESE CHEMICAL LETTERS,2023,34(12).
APA Li, Rui.,Zhang, Chenchen.,You, Kejia.,Li, Bonan.,Bu, Wei.,...&Ding, Yong.(2023).Molecular confined synthesis of magnetic CoOx /Co/C hybrid catalyst for photocatalytic water oxidation and CO2 reduction.CHINESE CHEMICAL LETTERS,34(12).
MLA Li, Rui,et al."Molecular confined synthesis of magnetic CoOx /Co/C hybrid catalyst for photocatalytic water oxidation and CO2 reduction".CHINESE CHEMICAL LETTERS 34.12(2023).
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