Enhanced PEC Water Splitting Performance of Silver Nanoparticle-Coated CdS Nanowire Photoanodes: The Role of Silver Deposition
In this work, Ag@CdS nanowires (NWs) were fabricated via a facile hydrothermal route and magnetron sputtering. The structure and morphology of the Ag@CdS NWs were characterized by field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and X-ray photon spect...
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| Veröffentlicht in: | Journal of physical chemistry. C 2021-04, Vol.125 (14), p.7542-7551 |
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| container_title | Journal of physical chemistry. C |
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| creator | Saeed, Sara Siddique, Hassan Dai, Rucheng Wang, Junke Ali, Asad Gao, Chan Tao, Xiaoping Wang, Zhongping Ding, Zejun Zhang, Zengming |
| description | In this work, Ag@CdS nanowires (NWs) were fabricated via a facile hydrothermal route and magnetron sputtering. The structure and morphology of the Ag@CdS NWs were characterized by field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and X-ray photon spectroscopy. The synthesized Ag@CdS NWs exhibit an enhanced light sensitizing ability due to plasmon-enhanced absorption at the Ag and CdS interface. The Ag@CdS NW photoanode exhibits superior light harvesting and photoelectrochemical performance with an optimal photocurrent density of about 6.15 mA/cm2 at a 0.18 V bias versus the saturated calomel electrode (SCE) and a photocurrent density of about 4.7 times compared to that of the pure CdS NW photoanode. The photochemical conversion efficiency calculated for Ag(45 s)@CdS NWs is found to be 6.6% (potential vs SCE at 0.12 V) compared to 1.28% for CdS NWs at the same potential. The H2 generation obtained from the Ag(45 s)@CdS NW photoanode is 1.8 times higher than that from the pure CdS NW photoanode. |
| doi_str_mv | 10.1021/acs.jpcc.0c11332 |
| format | Article |
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The structure and morphology of the Ag@CdS NWs were characterized by field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and X-ray photon spectroscopy. The synthesized Ag@CdS NWs exhibit an enhanced light sensitizing ability due to plasmon-enhanced absorption at the Ag and CdS interface. The Ag@CdS NW photoanode exhibits superior light harvesting and photoelectrochemical performance with an optimal photocurrent density of about 6.15 mA/cm2 at a 0.18 V bias versus the saturated calomel electrode (SCE) and a photocurrent density of about 4.7 times compared to that of the pure CdS NW photoanode. The photochemical conversion efficiency calculated for Ag(45 s)@CdS NWs is found to be 6.6% (potential vs SCE at 0.12 V) compared to 1.28% for CdS NWs at the same potential. The H2 generation obtained from the Ag(45 s)@CdS NW photoanode is 1.8 times higher than that from the pure CdS NW photoanode.</description><identifier>ISSN: 1932-7447</identifier><identifier>EISSN: 1932-7455</identifier><identifier>DOI: 10.1021/acs.jpcc.0c11332</identifier><language>eng</language><publisher>American Chemical Society</publisher><subject>C: Energy Conversion and Storage</subject><ispartof>Journal of physical chemistry. 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C</title><addtitle>J. Phys. Chem. C</addtitle><description>In this work, Ag@CdS nanowires (NWs) were fabricated via a facile hydrothermal route and magnetron sputtering. The structure and morphology of the Ag@CdS NWs were characterized by field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and X-ray photon spectroscopy. The synthesized Ag@CdS NWs exhibit an enhanced light sensitizing ability due to plasmon-enhanced absorption at the Ag and CdS interface. The Ag@CdS NW photoanode exhibits superior light harvesting and photoelectrochemical performance with an optimal photocurrent density of about 6.15 mA/cm2 at a 0.18 V bias versus the saturated calomel electrode (SCE) and a photocurrent density of about 4.7 times compared to that of the pure CdS NW photoanode. The photochemical conversion efficiency calculated for Ag(45 s)@CdS NWs is found to be 6.6% (potential vs SCE at 0.12 V) compared to 1.28% for CdS NWs at the same potential. The H2 generation obtained from the Ag(45 s)@CdS NW photoanode is 1.8 times higher than that from the pure CdS NW photoanode.</description><subject>C: Energy Conversion and Storage</subject><issn>1932-7447</issn><issn>1932-7455</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kMtOwzAQRS0EEqWwZ-kPIMWO4yZmh0J5SBVUtIhlNPWDukrjyDYgNnw7SVshNqzmcedejQ5C55SMKEnpJcgwWrdSjoiklLH0AA2oYGmSZ5wf_vZZfoxOQlgTwhmhbIC-J80KGqkVnk1K_ApRezxvaxujbd7wTHvj_KY_wM7gua0_Ov0RGteCj1bWOild51G4VPPt_tN6jWcrF103KB2u8GKl8bOr_wbc6NYFG61rTtGRgTros30dopfbyaK8T6ZPdw_l9TQBlo1joiQoVSyJESlJ86UUAjKjTU6KjI4JFykoI00-ZlxypjNghaAchITC5LKQig0R2eVK70Lw2lSttxvwXxUlVc-v6vhVPb9qz6-zXOwsW8W9-6Z78P_zH9_Tdjc</recordid><startdate>20210415</startdate><enddate>20210415</enddate><creator>Saeed, Sara</creator><creator>Siddique, Hassan</creator><creator>Dai, Rucheng</creator><creator>Wang, Junke</creator><creator>Ali, Asad</creator><creator>Gao, Chan</creator><creator>Tao, Xiaoping</creator><creator>Wang, Zhongping</creator><creator>Ding, Zejun</creator><creator>Zhang, Zengming</creator><general>American Chemical Society</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0001-8245-9955</orcidid><orcidid>https://orcid.org/0000-0002-5549-9051</orcidid><orcidid>https://orcid.org/0000-0001-5767-1145</orcidid></search><sort><creationdate>20210415</creationdate><title>Enhanced PEC Water Splitting Performance of Silver Nanoparticle-Coated CdS Nanowire Photoanodes: The Role of Silver Deposition</title><author>Saeed, Sara ; Siddique, Hassan ; Dai, Rucheng ; Wang, Junke ; Ali, Asad ; Gao, Chan ; Tao, Xiaoping ; Wang, Zhongping ; Ding, Zejun ; Zhang, Zengming</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a346t-dcadd8b0f92027bc99a4fef7084160592adfcf7635c53e4a38915a9ca8f7c8cd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>C: Energy Conversion and Storage</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saeed, Sara</creatorcontrib><creatorcontrib>Siddique, Hassan</creatorcontrib><creatorcontrib>Dai, Rucheng</creatorcontrib><creatorcontrib>Wang, Junke</creatorcontrib><creatorcontrib>Ali, Asad</creatorcontrib><creatorcontrib>Gao, Chan</creatorcontrib><creatorcontrib>Tao, Xiaoping</creatorcontrib><creatorcontrib>Wang, Zhongping</creatorcontrib><creatorcontrib>Ding, Zejun</creatorcontrib><creatorcontrib>Zhang, Zengming</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of physical chemistry. C</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Saeed, Sara</au><au>Siddique, Hassan</au><au>Dai, Rucheng</au><au>Wang, Junke</au><au>Ali, Asad</au><au>Gao, Chan</au><au>Tao, Xiaoping</au><au>Wang, Zhongping</au><au>Ding, Zejun</au><au>Zhang, Zengming</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced PEC Water Splitting Performance of Silver Nanoparticle-Coated CdS Nanowire Photoanodes: The Role of Silver Deposition</atitle><jtitle>Journal of physical chemistry. C</jtitle><addtitle>J. Phys. Chem. C</addtitle><date>2021-04-15</date><risdate>2021</risdate><volume>125</volume><issue>14</issue><spage>7542</spage><epage>7551</epage><pages>7542-7551</pages><issn>1932-7447</issn><eissn>1932-7455</eissn><abstract>In this work, Ag@CdS nanowires (NWs) were fabricated via a facile hydrothermal route and magnetron sputtering. The structure and morphology of the Ag@CdS NWs were characterized by field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and X-ray photon spectroscopy. The synthesized Ag@CdS NWs exhibit an enhanced light sensitizing ability due to plasmon-enhanced absorption at the Ag and CdS interface. The Ag@CdS NW photoanode exhibits superior light harvesting and photoelectrochemical performance with an optimal photocurrent density of about 6.15 mA/cm2 at a 0.18 V bias versus the saturated calomel electrode (SCE) and a photocurrent density of about 4.7 times compared to that of the pure CdS NW photoanode. The photochemical conversion efficiency calculated for Ag(45 s)@CdS NWs is found to be 6.6% (potential vs SCE at 0.12 V) compared to 1.28% for CdS NWs at the same potential. The H2 generation obtained from the Ag(45 s)@CdS NW photoanode is 1.8 times higher than that from the pure CdS NW photoanode.</abstract><pub>American Chemical Society</pub><doi>10.1021/acs.jpcc.0c11332</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0001-8245-9955</orcidid><orcidid>https://orcid.org/0000-0002-5549-9051</orcidid><orcidid>https://orcid.org/0000-0001-5767-1145</orcidid></addata></record> |
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| source | ACS Publications |
| subjects | C: Energy Conversion and Storage |
| title | Enhanced PEC Water Splitting Performance of Silver Nanoparticle-Coated CdS Nanowire Photoanodes: The Role of Silver Deposition |
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