Bonan Li , Mengxue Chen , Qiyu Hu , Jiayu Zhu , Xu Yang , Zhexu Li , Chunlian Hu , Yuanyuan Li , Ping Ni , Yong Ding
{"title":"十二面体 POM 框架负载单金属或双金属位点，可轻松调谐，用于高效光催化还原 CO2","authors":"Bonan Li , Mengxue Chen , Qiyu Hu , Jiayu Zhu , Xu Yang , Zhexu Li , Chunlian Hu , Yuanyuan Li , Ping Ni , Yong Ding","doi":"10.1016/j.apcatb.2024.123733","DOIUrl":null,"url":null,"abstract":"<div><p>Utilizing solar energy to drive the conversion of CO<sub>2</sub> into high-value chemicals emerged as a promising approach to decrease CO<sub>2</sub> emission. Yolk-shell or hollow structure have drawn much attention for photocatalytic CO<sub>2</sub> reduction, owing to their efficient CO<sub>2</sub> trapping and more active sites exposing. In this study, we employed a simple method to regulate the morphological evolution of K<sub>3</sub>PW<sub>12</sub>O<sub>40</sub> dodecahedra. After annealing, mono-/bimetallic active species are homogeneously dispersed on K<sub>3</sub>PW<sub>12</sub>O<sub>40</sub> framework forming PW<sub>12</sub> @Co and PW<sub>12</sub> @CoNi, which exhibit good CO production rates of 11.2 and 15.1 μmol/h, respectively, with selectivity of 90.7% and 92.6%. The differences in the activity and selectivity of CO<sub>2</sub>RR are attributed to the morphology variations of POM and the influence of mono-/bimetallic species. These results are confirmed through the analysis of SEM, TEM, N<sub>2</sub> and CO<sub>2</sub> adsorption/desorption, PL, EIS and SPV characterizations. In-situ DRIFTS and DFT provide further support for the formation and transformation of intermediate products.</p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"346 ","pages":"Article 123733"},"PeriodicalIF":20.2000,"publicationDate":"2024-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Facilely tunable dodecahedral polyoxometalate framework loaded with mono- or bimetallic sites for efficient photocatalytic CO2 reduction\",\"authors\":\"Bonan Li , Mengxue Chen , Qiyu Hu , Jiayu Zhu , Xu Yang , Zhexu Li , Chunlian Hu , Yuanyuan Li , Ping Ni , Yong Ding\",\"doi\":\"10.1016/j.apcatb.2024.123733\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Utilizing solar energy to drive the conversion of CO<sub>2</sub> into high-value chemicals emerged as a promising approach to decrease CO<sub>2</sub> emission. Yolk-shell or hollow structure have drawn much attention for photocatalytic CO<sub>2</sub> reduction, owing to their efficient CO<sub>2</sub> trapping and more active sites exposing. In this study, we employed a simple method to regulate the morphological evolution of K<sub>3</sub>PW<sub>12</sub>O<sub>40</sub> dodecahedra. After annealing, mono-/bimetallic active species are homogeneously dispersed on K<sub>3</sub>PW<sub>12</sub>O<sub>40</sub> framework forming PW<sub>12</sub> @Co and PW<sub>12</sub> @CoNi, which exhibit good CO production rates of 11.2 and 15.1 μmol/h, respectively, with selectivity of 90.7% and 92.6%. The differences in the activity and selectivity of CO<sub>2</sub>RR are attributed to the morphology variations of POM and the influence of mono-/bimetallic species. These results are confirmed through the analysis of SEM, TEM, N<sub>2</sub> and CO<sub>2</sub> adsorption/desorption, PL, EIS and SPV characterizations. In-situ DRIFTS and DFT provide further support for the formation and transformation of intermediate products.</p></div>\",\"PeriodicalId\":244,\"journal\":{\"name\":\"Applied Catalysis B: Environmental\",\"volume\":\"346 \",\"pages\":\"Article 123733\"},\"PeriodicalIF\":20.2000,\"publicationDate\":\"2024-01-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Catalysis B: Environmental\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0926337324000444\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Catalysis B: Environmental","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0926337324000444","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Facilely tunable dodecahedral polyoxometalate framework loaded with mono- or bimetallic sites for efficient photocatalytic CO2 reduction
Utilizing solar energy to drive the conversion of CO2 into high-value chemicals emerged as a promising approach to decrease CO2 emission. Yolk-shell or hollow structure have drawn much attention for photocatalytic CO2 reduction, owing to their efficient CO2 trapping and more active sites exposing. In this study, we employed a simple method to regulate the morphological evolution of K3PW12O40 dodecahedra. After annealing, mono-/bimetallic active species are homogeneously dispersed on K3PW12O40 framework forming PW12 @Co and PW12 @CoNi, which exhibit good CO production rates of 11.2 and 15.1 μmol/h, respectively, with selectivity of 90.7% and 92.6%. The differences in the activity and selectivity of CO2RR are attributed to the morphology variations of POM and the influence of mono-/bimetallic species. These results are confirmed through the analysis of SEM, TEM, N2 and CO2 adsorption/desorption, PL, EIS and SPV characterizations. In-situ DRIFTS and DFT provide further support for the formation and transformation of intermediate products.
期刊介绍：
Applied Catalysis B: Environment and Energy (formerly Applied Catalysis B: Environmental) is a journal that focuses on the transition towards cleaner and more sustainable energy sources. The journal's publications cover a wide range of topics, including:
1.Catalytic elimination of environmental pollutants such as nitrogen oxides, carbon monoxide, sulfur compounds, chlorinated and other organic compounds, and soot emitted from stationary or mobile sources.
2.Basic understanding of catalysts used in environmental pollution abatement, particularly in industrial processes.
3.All aspects of preparation, characterization, activation, deactivation, and regeneration of novel and commercially applicable environmental catalysts.
4.New catalytic routes and processes for the production of clean energy, such as hydrogen generation via catalytic fuel processing, and new catalysts and electrocatalysts for fuel cells.
5.Catalytic reactions that convert wastes into useful products.
6.Clean manufacturing techniques that replace toxic chemicals with environmentally friendly catalysts.
7.Scientific aspects of photocatalytic processes and a basic understanding of photocatalysts as applied to environmental problems.
8.New catalytic combustion technologies and catalysts.
9.New catalytic non-enzymatic transformations of biomass components.
The journal is abstracted and indexed in API Abstracts, Research Alert, Chemical Abstracts, Web of Science, Theoretical Chemical Engineering Abstracts, Engineering, Technology & Applied Sciences, and others.
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