Cobalt oxide and carbon modified hematite nanorod arrays for improved photoelectrochemical water splitting
Cobalt oxide and carbon modified hematite nanorod arrays for improved photoelectrochemical water splitting
复制标题
氧化钴和碳改性的赤铁矿纳米棒阵列可改善光电化学水分解
DOI:
10.1016/j.cclet.2017.11.037
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发表时间:
2017-12
影响因子:
9.1
通讯作者:
Shaohua Shen
中科院分区:
文献类型:
--
作者:
Miao Wang;Meng Wang;Yanming Fu;Shaohua Shen
Given the proper band gap, low cost and good stability, hematite (α-Fe2O3) has been considered as a promising candidate for photoelectrochemical (PEC) water splitting, however suffers from the sluggish surface water oxidation reaction kinetics. In this study, a simple dip-coating process was used to modify the surface ofα-Fe2O3nanorod arrays with cobalt oxide (CoOx) and carbon (C) for the improved PEC performance, with a photocurrent density at 1.6 V (vs.reversible hydrogen electrode, RHE) increased from 0.10 mA/cm2for the pristineα-Fe2O3to 0.37 mA/cm2for the CoOx/C modifiedα-Fe2O3nanorods. As revealed by electrochemical analysis, thanks to the synergistic effect of CoOxand C, the PEC enhancement could be attributed to the enhanced charge transfer ability, decreased surface charge recombination, and accelerated water oxidation reaction kinetics. This study serves as a good example for improving PEC water splitting performance via a simple method.
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影响因子:
15
作者:
Le Formal F;Pastor E;Tilley SD;Mesa CA;Pendlebury SR;Grätzel M;Durrant JR
通讯作者:
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15
作者:
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作者:
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DOI:
10.1021/jp051546g
发表时间:
2005-06
期刊:
The journal of physical chemistry. B
影响因子:
--
作者:
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通讯作者:
Chantal Jorand Sartoretti;B. Alexander;R. Solarska;I. Rutkowska;J. Augustynski;R. Černý