• Inicio
  • Resultados de la búsqueda
  • Enhancement of solar hydrogen evolution from water by surface modification with CdS and TiO2 on porous CuInS2 photocathodes prepared by an electrodeposition-sulfurization method.

Enhancement of solar hydrogen evolution from water by surface modification with CdS and TiO2 on porous CuInS2 photocathodes prepared by an electrodeposition-sulfurization method.

Angewandte Chemie (International ed. in English) (2014-09-12)
Jiao Zhao, Tsutomu Minegishi, Li Zhang, Miao Zhong, Gunawan, Mamiko Nakabayashi, Guijun Ma, Takashi Hisatomi, Masao Katayama, Shigeru Ikeda, Naoya Shibata, Taro Yamada, Kazunari Domen
RESUMEN

Porous films of p-type CuInS2, prepared by sulfurization of electrodeposited metals, are surface-modified with thin layers of CdS and TiO2. This specific porous electrode evolved H2 from photoelectrochemical water reduction under simulated sunlight. Modification with thin n-type CdS and TiO2 layers significantly increased the cathodic photocurrent and onset potential through the formation of a p-n junction on the surface. The modified photocathodes showed a relatively high efficiency and stable H2 production under the present reaction conditions.

MATERIALES
Referencia del producto
Marca
Descripción del producto

Sigma-Aldrich
Citric acid, ACS reagent, ≥99.5%
Sigma-Aldrich
Sodium sulfate, ACS reagent, ≥99.0%, anhydrous, granular
Sigma-Aldrich
Sodium sulfate, ACS reagent, ≥99.0%, anhydrous, powder
Sigma-Aldrich
Citric acid, 99%
Sigma-Aldrich
Citric acid, anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99.5%
Supelco
Sodium Citrate, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
Citric acid, meets analytical specification of Ph. Eur., BP, USP, E330, anhydrous, 99.5-100.5% (based on anhydrous substance)
Supelco
Citric acid, Anhydrous, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
Citric acid, anhydrous, suitable for cell culture, suitable for plant cell culture
Sigma-Aldrich
Sodium sulfate, puriss., meets analytical specification of Ph. Eur., BP, USP, anhydrous, 99.0-100.5% (calc. to the dried substance)
Sigma-Aldrich
Sodium sulfate, ReagentPlus®, ≥99.0%
Sigma-Aldrich
Sodium sulfate, anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99%
Supelco
Citric acid, analytical standard
Sigma-Aldrich
Citric acid, BioUltra, anhydrous, ≥99.5% (T)
Sigma-Aldrich
Citric acid, ≥99.5%, FCC, FG
Sigma-Aldrich
Sodium sulfate, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., anhydrous, ≥99.0%
Sigma-Aldrich
Citrate Concentrated Solution, BioReagent, suitable for coagulation assays, 4 % (w/v)
Sigma-Aldrich
Sodium sulfate, tested according to Ph. Eur., anhydrous
Sigma-Aldrich
Sodium sulfate, ≥99.99% trace metals basis
Sigma-Aldrich
2-Hydroxybutyric acid sodium salt, 97%
Supelco
Citric acid, certified reference material, TraceCERT®
Sigma-Aldrich
Sodium sulfate, anhydrous, free-flowing, Redi-Dri, ReagentPlus®, ≥99%
USP
Citric acid, United States Pharmacopeia (USP) Reference Standard
Sigma-Aldrich
Sodium sulfate, BioXtra, ≥99.0%
Citric acid, anhydrous, European Pharmacopoeia (EP) Reference Standard
Sigma-Aldrich
Sodium sulfate, BioUltra, anhydrous, ≥99.0% (T)
Sigma-Aldrich
Sodium sulfate, ≥99.0%, suitable for plant cell culture