| DOI: | 10.1016/j.jcou.2016.11.013
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| Scopus记录号: | 2-s2.0-85007143106
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| 论文题名: | Plasmonic nanostructured Zn/ZnO composite enhances carbonic anhydrase driven photocatalytic hydrogen generation |
| 作者: | Mangrulkar P.A.; Chilkalwar A.A.; Kotkondawar A.V.; Manwar N.R.; Antony P.S.; Hippargi G.; Labhsetwar N.; Trachtenberg M.C.; Rayalu S.S.
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| 刊名: | Journal of CO2 Utilization
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| ISSN: | 22129820
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| 出版年: | 2017
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| 卷: | 17 | | 起始页码: | 207
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| 结束页码: | 212
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| 语种: | 英语
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| 英文关键词: | Carbonic anhydrase
; Hydrogen
; Surface plasmon resonance
; Zn/ZnO composite
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| Scopus关键词: | Biomimetics
; Carbon dioxide
; Carbonic anhydrase
; Catalysis
; Hydrogen
; Metals
; Photocatalysis
; Photolysis
; Photons
; Plasmons
; Precious metals
; Surface plasmon resonance
; Zinc
; Bicarbonate ions
; Hydrogen evolution
; Hydrogen generations
; Micro particles
; Nano-structured
; Organic donors
; Photocatalytic hydrogen
; Production rates
; Hydrogen production
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| 英文摘要: | Hydrogen is produced from water by electrolysis or photolysis. Although, photocatalysis demands significantly less energy, it has several problem issues; slower production rate, consumption of sacrificial donors or need for expensive noble metals. Here, we report substantial increase in the rate of hydrogen evolution without the use of sacrificial donors or noble metals. We demonstrate appreciable hydrogen generation by coupling biomimetic carbonation with common metal driven plasmonic photocatalysis. Our process has three parts. First, zinc leads to the formation of Zn/ZnO composite, which acts as the proximate photocatalyst. Second, specific illumination operates on the composite via Surface Plasmon Resonance (SPR), a phenomenon in which photons activated nanoparticles exhibit local heating, concentration and redistribution of the incident light and release of electrons. Third, carbonic anhydrase catalyzes the hydrolysis of water by CO2 to provide both protons and bicarbonate ions critical to the process. In sum, protons derived from water combine with electrons derived photocatalytically from Zn/ZnO to yield hydrogen. Only photons and water are consumed and only hydrogen is produced. The SPR sensitive Zn/ZnO composite generates hydrogen evolution at a rate of 1238 μmol h-1, an unprecedented enhancement (16.7-fold) over zinc micro particles - Zn(M) alone. The system is unique and low cost and avoids the use of noble metal and organic donors. © 2016 Elsevier Ltd. All rights reserved. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/52813
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| Appears in Collections: | 影响、适应和脆弱性
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| Recommended Citation: | |
Mangrulkar P.A.,Chilkalwar A.A.,Kotkondawar A.V.,et al. Plasmonic nanostructured Zn/ZnO composite enhances carbonic anhydrase driven photocatalytic hydrogen generation[J]. Journal of CO2 Utilization,2017-01-01,17
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