Optimizing Height and Packing Density of Oriented One-Dimensional Photocatalysts for Efficient Water Photoelectrolysis
Dependences of water-photoelectrolysis efficiency on heights and packing densities of vertically arrayed ZnO nanorods (NRs) and ZnO microrods (MRs) were systematically studied for the first time over a wide range of light incidence angles, under the direction of nanooptics simulation. In the photoel...
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| Veröffentlicht in: | Journal of physical chemistry. C 2013-10, Vol.117 (40), p.20778-20783 |
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| container_title | Journal of physical chemistry. C |
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| creator | Zhou, Huajun Deng, Huixu Ghetmiri, Seyed A Abu-Safe, Husam H Yu, Shui Q Yang, Xiaodong Tian, Z. Ryan |
| description | Dependences of water-photoelectrolysis efficiency on heights and packing densities of vertically arrayed ZnO nanorods (NRs) and ZnO microrods (MRs) were systematically studied for the first time over a wide range of light incidence angles, under the direction of nanooptics simulation. In the photoelectrolysis, dense NRs of 1.8 μm in height afforded the highest photocatalytic efficiencies, and further increases of the height kept lowering down the photocatalytic efficiencies, while sparse MRs taller in height consistently afforded better electrolyte penetration and higher photocurrent densities especially at higher angles of incident light. The experimental results are in line with the nanooptics simulation. This new finding is generally applicable to advancing solar-energy conversions, optics, and optoelectronics using oriented one-dimensional micro/nanocrystallites. |
| doi_str_mv | 10.1021/jp407317k |
| format | Article |
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This new finding is generally applicable to advancing solar-energy conversions, optics, and optoelectronics using oriented one-dimensional micro/nanocrystallites.</description><identifier>ISSN: 1932-7447</identifier><identifier>EISSN: 1932-7455</identifier><identifier>DOI: 10.1021/jp407317k</identifier><language>eng</language><publisher>Columbus, OH: American Chemical Society</publisher><subject>Catalysis ; Catalysts: preparations and properties ; Chemistry ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; General and physical chemistry ; General, apparatus ; Materials science ; Nanoscale materials and structures: fabrication and characterization ; Nanotubes ; Other topics in nanoscale materials and structures ; Physics ; Surface physical chemistry ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><ispartof>Journal of physical chemistry. 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Ryan</creatorcontrib><title>Optimizing Height and Packing Density of Oriented One-Dimensional Photocatalysts for Efficient Water Photoelectrolysis</title><title>Journal of physical chemistry. C</title><addtitle>J. Phys. Chem. C</addtitle><description>Dependences of water-photoelectrolysis efficiency on heights and packing densities of vertically arrayed ZnO nanorods (NRs) and ZnO microrods (MRs) were systematically studied for the first time over a wide range of light incidence angles, under the direction of nanooptics simulation. In the photoelectrolysis, dense NRs of 1.8 μm in height afforded the highest photocatalytic efficiencies, and further increases of the height kept lowering down the photocatalytic efficiencies, while sparse MRs taller in height consistently afforded better electrolyte penetration and higher photocurrent densities especially at higher angles of incident light. The experimental results are in line with the nanooptics simulation. This new finding is generally applicable to advancing solar-energy conversions, optics, and optoelectronics using oriented one-dimensional micro/nanocrystallites.</description><subject>Catalysis</subject><subject>Catalysts: preparations and properties</subject><subject>Chemistry</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>General, apparatus</subject><subject>Materials science</subject><subject>Nanoscale materials and structures: fabrication and characterization</subject><subject>Nanotubes</subject><subject>Other topics in nanoscale materials and structures</subject><subject>Physics</subject><subject>Surface physical chemistry</subject><subject>Theory of reactions, general kinetics. Catalysis. 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Nomenclature, chemical documentation, computer chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhou, Huajun</creatorcontrib><creatorcontrib>Deng, Huixu</creatorcontrib><creatorcontrib>Ghetmiri, Seyed A</creatorcontrib><creatorcontrib>Abu-Safe, Husam H</creatorcontrib><creatorcontrib>Yu, Shui Q</creatorcontrib><creatorcontrib>Yang, Xiaodong</creatorcontrib><creatorcontrib>Tian, Z. Ryan</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Journal of physical chemistry. C</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhou, Huajun</au><au>Deng, Huixu</au><au>Ghetmiri, Seyed A</au><au>Abu-Safe, Husam H</au><au>Yu, Shui Q</au><au>Yang, Xiaodong</au><au>Tian, Z. Ryan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optimizing Height and Packing Density of Oriented One-Dimensional Photocatalysts for Efficient Water Photoelectrolysis</atitle><jtitle>Journal of physical chemistry. C</jtitle><addtitle>J. Phys. Chem. C</addtitle><date>2013-10-10</date><risdate>2013</risdate><volume>117</volume><issue>40</issue><spage>20778</spage><epage>20783</epage><pages>20778-20783</pages><issn>1932-7447</issn><eissn>1932-7455</eissn><abstract>Dependences of water-photoelectrolysis efficiency on heights and packing densities of vertically arrayed ZnO nanorods (NRs) and ZnO microrods (MRs) were systematically studied for the first time over a wide range of light incidence angles, under the direction of nanooptics simulation. 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| subjects | Catalysis Catalysts: preparations and properties Chemistry Cross-disciplinary physics: materials science rheology Exact sciences and technology General and physical chemistry General, apparatus Materials science Nanoscale materials and structures: fabrication and characterization Nanotubes Other topics in nanoscale materials and structures Physics Surface physical chemistry Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry |
| title | Optimizing Height and Packing Density of Oriented One-Dimensional Photocatalysts for Efficient Water Photoelectrolysis |
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