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Volumn 113, Issue 51, 2009, Pages 21458-21466

Aspects of the water splitting mechanism on (Ga 1-xZn x)(N 1-xO x) photocatalyst modified with Rh 2-yCr yO 3 cocatalyst

Author keywords

[No Author keywords available]

Indexed keywords

APPARENT ACTIVATION ENERGY; COCATALYST; EVOLUTION REACTIONS; ISOTOPE EFFECT; KINETIC MODELS; LIGHT INTENSITY; LOADING AMOUNT; PHOTO-CATALYTIC; PHOTOCATALYTIC ACTIVITIES; PHOTOCATALYTIC WATER SPLITTING; PHOTOEXCITED CARRIERS; PHOTOEXCITED ELECTRONS; PHOTOEXCITED HOLES; REACTION ORDERS; REACTION PROBABILITY; REACTION TEMPERATURE; SOLAR IRRADIATION; VARYING LIGHTS; WATER SPLITTING; WATER SPLITTING REACTIONS;

EID: 73849091003     PISSN: 19327447     EISSN: 19327455     Source Type: Journal    
DOI: 10.1021/jp9079662     Document Type: Article
Times cited : (141)

References (64)
  • 56
    • 73849105261 scopus 로고    scopus 로고
    • Three reaction processes are widely accepted for the H2 evolution reaction on metal electrodes; these are the Volmer, Heyrovsky, and Tafel reactions. The photocatalytic H2 evolution reaction would proceed via analogous paths on Rh2-yCry O 3/(Ga1-xZnx)(N 1-x Ox, However, the reaction mechanism of H2 evolution on Rh2-yCry O3 has not been identified. Furthermore, the reaction paths for O2 evolution have not been established, even on metal and metal oxide electrodes. Given nth order reactions (n ≥ 1) for photoexcited electrons and holes, the reaction rate would be nth order dependent on light intensity under the condition that there is negligible accumulation of photoexcited carrier. However, this is clearly contradictory to the experimental results. This is presumably because first-order ap
    • 3 has not been identified. Furthermore, the reaction paths for O2 evolution have not been established, even on metal and metal oxide electrodes. Given nth order reactions (n ≥ 1) for photoexcited electrons and holes, the reaction rate would be nth order dependent on light intensity under the condition that there is negligible accumulation of photoexcited carrier. However, this is clearly contradictory to the experimental results. This is presumably because first-order approximation of the reaction rates by photoexcited carriers is valid under the condition.
  • 57
    • 84868085597 scopus 로고    scopus 로고
    • 1/2 and b/2 as b approaches infinity and zero, respectively.
    • 1/2 and b/2 as b approaches infinity and zero, respectively.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.