Enhanced photochemical CO2 reduction in the gas phase by graphdiyne
Photocatalytic CO2 reduction is promising for reducing the greenhouse effect and producing renewable energy, but still shows low activity and selectivity due to the ineffective utilization of photogenerated charge carriers and insufficient active sites for CO2 adsorption and activation. Taking CdS n...
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| Veröffentlicht in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2020-04, Vol.8 (16), p.7671-7676 |
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| container_end_page | 7676 |
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| container_issue | 16 |
| container_start_page | 7671 |
| container_title | Journal of materials chemistry. A, Materials for energy and sustainability |
| container_volume | 8 |
| creator | Cao, Shaowen Wang, Yajie Zhu, Bicheng Xie, Guancai Yu, Jiaguo Gong, Jian Ru |
| description | Photocatalytic CO2 reduction is promising for reducing the greenhouse effect and producing renewable energy, but still shows low activity and selectivity due to the ineffective utilization of photogenerated charge carriers and insufficient active sites for CO2 adsorption and activation. Taking CdS nanocrystals as a model semiconductor, we demonstrate that graphdiyne, a new type of two-dimensional carbon allotrope uniquely formed from sp- and sp2-hybridized carbon, enhances CO2 photoreduction over CdS with higher activity, selectivity, and stability in the gas phase without any sacrificial agent compared to graphene. Both experimental and theoretical results prove that the chemical bonding between graphdiyne and CdS and sufficient CO2 adsorption sites due to the strong interfacial interaction-induced sulfur vacancies in CdS and more electron-deficient acetylenic linkages in graphdiyne lead to more efficient electron transfer and storage for the subsequent CO2 reduction reaction. The excellent properties of graphdiyne make it promising for applications in solar energy conversion. |
| doi_str_mv | 10.1039/d0ta02256j |
| format | Article |
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Taking CdS nanocrystals as a model semiconductor, we demonstrate that graphdiyne, a new type of two-dimensional carbon allotrope uniquely formed from sp- and sp2-hybridized carbon, enhances CO2 photoreduction over CdS with higher activity, selectivity, and stability in the gas phase without any sacrificial agent compared to graphene. Both experimental and theoretical results prove that the chemical bonding between graphdiyne and CdS and sufficient CO2 adsorption sites due to the strong interfacial interaction-induced sulfur vacancies in CdS and more electron-deficient acetylenic linkages in graphdiyne lead to more efficient electron transfer and storage for the subsequent CO2 reduction reaction. The excellent properties of graphdiyne make it promising for applications in solar energy conversion.</description><identifier>ISSN: 2050-7488</identifier><identifier>EISSN: 2050-7496</identifier><identifier>DOI: 10.1039/d0ta02256j</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Adsorption ; Allotropy ; Alternative energy sources ; Carbon dioxide ; Chemical bonds ; Chemical reduction ; Current carriers ; Electron transfer ; Energy conversion ; Graphene ; Greenhouse effect ; Nanocrystals ; Photochemicals ; Photoreduction ; Renewable energy ; Selectivity ; Solar energy ; Solar energy conversion ; Sulfur ; Two dimensional models ; Vapor phases</subject><ispartof>Journal of materials chemistry. 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A, Materials for energy and sustainability</title><description>Photocatalytic CO2 reduction is promising for reducing the greenhouse effect and producing renewable energy, but still shows low activity and selectivity due to the ineffective utilization of photogenerated charge carriers and insufficient active sites for CO2 adsorption and activation. Taking CdS nanocrystals as a model semiconductor, we demonstrate that graphdiyne, a new type of two-dimensional carbon allotrope uniquely formed from sp- and sp2-hybridized carbon, enhances CO2 photoreduction over CdS with higher activity, selectivity, and stability in the gas phase without any sacrificial agent compared to graphene. Both experimental and theoretical results prove that the chemical bonding between graphdiyne and CdS and sufficient CO2 adsorption sites due to the strong interfacial interaction-induced sulfur vacancies in CdS and more electron-deficient acetylenic linkages in graphdiyne lead to more efficient electron transfer and storage for the subsequent CO2 reduction reaction. The excellent properties of graphdiyne make it promising for applications in solar energy conversion.</description><subject>Adsorption</subject><subject>Allotropy</subject><subject>Alternative energy sources</subject><subject>Carbon dioxide</subject><subject>Chemical bonds</subject><subject>Chemical reduction</subject><subject>Current carriers</subject><subject>Electron transfer</subject><subject>Energy conversion</subject><subject>Graphene</subject><subject>Greenhouse effect</subject><subject>Nanocrystals</subject><subject>Photochemicals</subject><subject>Photoreduction</subject><subject>Renewable energy</subject><subject>Selectivity</subject><subject>Solar energy</subject><subject>Solar energy conversion</subject><subject>Sulfur</subject><subject>Two dimensional models</subject><subject>Vapor phases</subject><issn>2050-7488</issn><issn>2050-7496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNo9j01LxDAYhIMouKx78RcEPFffvEna5Chl_YCFveh5yVe_WNPapIf99xYU5zJzeJhhCLln8MiA6ycP2QCiLIcrskGQUFRCl9f_WalbsktpgFUKoNR6Q-p97Ex0wdOpG_PouvDVO3Om9RHpHPzicj9G2keau0Bbk1bMpEDthbazmTrfX2K4IzeNOaew-_Mt-XzZf9RvxeH4-l4_H4oWEXKB3htrjEVdKc44NF4pESrmpEDdWM8FKAaNwCCdFryyznvH1ztcKa7B8S15-O2d5vF7CSmfhnGZ4zp5Qq4lKo2S8R-fTkuV</recordid><startdate>20200428</startdate><enddate>20200428</enddate><creator>Cao, Shaowen</creator><creator>Wang, Yajie</creator><creator>Zhu, Bicheng</creator><creator>Xie, Guancai</creator><creator>Yu, Jiaguo</creator><creator>Gong, Jian Ru</creator><general>Royal Society of Chemistry</general><scope>7SP</scope><scope>7SR</scope><scope>7ST</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>JG9</scope><scope>L7M</scope><scope>SOI</scope></search><sort><creationdate>20200428</creationdate><title>Enhanced photochemical CO2 reduction in the gas phase by graphdiyne</title><author>Cao, Shaowen ; Wang, Yajie ; Zhu, Bicheng ; Xie, Guancai ; Yu, Jiaguo ; Gong, Jian Ru</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g220t-2ddabaab29783130fd884e71c5429fbd340810f42e5c9437bcddc3256388390c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Adsorption</topic><topic>Allotropy</topic><topic>Alternative energy sources</topic><topic>Carbon dioxide</topic><topic>Chemical bonds</topic><topic>Chemical reduction</topic><topic>Current carriers</topic><topic>Electron transfer</topic><topic>Energy conversion</topic><topic>Graphene</topic><topic>Greenhouse effect</topic><topic>Nanocrystals</topic><topic>Photochemicals</topic><topic>Photoreduction</topic><topic>Renewable energy</topic><topic>Selectivity</topic><topic>Solar energy</topic><topic>Solar energy conversion</topic><topic>Sulfur</topic><topic>Two dimensional models</topic><topic>Vapor phases</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cao, Shaowen</creatorcontrib><creatorcontrib>Wang, Yajie</creatorcontrib><creatorcontrib>Zhu, Bicheng</creatorcontrib><creatorcontrib>Xie, Guancai</creatorcontrib><creatorcontrib>Yu, Jiaguo</creatorcontrib><creatorcontrib>Gong, Jian Ru</creatorcontrib><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Environment Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cao, Shaowen</au><au>Wang, Yajie</au><au>Zhu, Bicheng</au><au>Xie, Guancai</au><au>Yu, Jiaguo</au><au>Gong, Jian Ru</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced photochemical CO2 reduction in the gas phase by graphdiyne</atitle><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle><date>2020-04-28</date><risdate>2020</risdate><volume>8</volume><issue>16</issue><spage>7671</spage><epage>7676</epage><pages>7671-7676</pages><issn>2050-7488</issn><eissn>2050-7496</eissn><abstract>Photocatalytic CO2 reduction is promising for reducing the greenhouse effect and producing renewable energy, but still shows low activity and selectivity due to the ineffective utilization of photogenerated charge carriers and insufficient active sites for CO2 adsorption and activation. Taking CdS nanocrystals as a model semiconductor, we demonstrate that graphdiyne, a new type of two-dimensional carbon allotrope uniquely formed from sp- and sp2-hybridized carbon, enhances CO2 photoreduction over CdS with higher activity, selectivity, and stability in the gas phase without any sacrificial agent compared to graphene. Both experimental and theoretical results prove that the chemical bonding between graphdiyne and CdS and sufficient CO2 adsorption sites due to the strong interfacial interaction-induced sulfur vacancies in CdS and more electron-deficient acetylenic linkages in graphdiyne lead to more efficient electron transfer and storage for the subsequent CO2 reduction reaction. The excellent properties of graphdiyne make it promising for applications in solar energy conversion.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d0ta02256j</doi><tpages>6</tpages></addata></record> |
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| ispartof | Journal of materials chemistry. A, Materials for energy and sustainability, 2020-04, Vol.8 (16), p.7671-7676 |
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| language | eng |
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| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Adsorption Allotropy Alternative energy sources Carbon dioxide Chemical bonds Chemical reduction Current carriers Electron transfer Energy conversion Graphene Greenhouse effect Nanocrystals Photochemicals Photoreduction Renewable energy Selectivity Solar energy Solar energy conversion Sulfur Two dimensional models Vapor phases |
| title | Enhanced photochemical CO2 reduction in the gas phase by graphdiyne |
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