Catalytic activity of Pt-promoted CdS nanocrystals covered with a polymer in photoelectrochemical hydrogen production by water splitting

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• 作者：Yu. A. Kabachii ; S. Yu. Kochev ; S. S. Abramchuk…
• 关键词：Key wordscadmium sulfide ; nanocrystalls ; platinum ; amphiphilic copolymer ; photoelectrochemical hydrogen evolution reaction
• 刊名：Russian Chemical Bulletin
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：65
• 期：2
• 页码：414-418
• 全文大小：177 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Chemistry
  Organic Chemistry
  Inorganic Chemistry
  Russian Library of Science
  
• 出版者：Springer New York
• ISSN：1573-9171
• 卷排序：65

文摘

Photocatalytic properties of Pt-promoted CdS nanocrystals functionalized by the polymer coating were investigated. Deposition of Pt on the surface of the nanoparticles followed by polymer functionalization provides a high photocatalytic activity (1.45 mmol h–1 mg–1 at 0.93 W cm–2) and apparent quantum yield (7%, λ = 445 nm) of the particles. Dependence of the rate of H₂ evolution on Pt loading is described by a curve with the maximum, whereas the quantum yield decreases with an increase in the light flux density. The photocatalytic activity of the nanocrystals increases more than 2 times with polymer coatining.