Vertically Aligned Ta3N5 Nanorod Arrays for Solar-Driven Photoelectrochemical Water Splitting
Vertically Aligned Ta3N5 Nanorod Arrays for Solar-Driven Photoelectrochemical Water Splitting
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DOI：
10.1002/adma.201202582
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发表时间：
2013-01-04
影响因子：
29.4
通讯作者：
Domen, Kazunari
中科院分区：
文献类型：
--
作者：
Li, Yanbo;Takata, Tsuyoshi;Domen, Kazunari
通过掩膜阳极氧化和氮化分解水制备了垂直排列的Ta3N5纳米棒光电极。作为光电化学电池的光阳极，Ta3N5纳米棒在1.23V与可逆氢电极相比，在AM 1.5g模拟阳光下产生了3.8 mA cm(-2)的高光电流密度，在440 nm处的入射光电转换效率为41.3%，是迄今报道的光阳极最高的活性之一。
A vertically aligned Ta3N5 nanorod photoelectrode is fabricated by through-mask anodization and nitridation for water splitting. The Ta3N5 nanorods, working as photoanodes of a photoelectrochemical cell, yield a high photocurrent density of 3.8 mA cm(-2) at 1.23 V versus a reversible hydrogen electrode under AM 1.5G simulated sunlight and an incident photon-to-current conversion efficiency of 41.3% at 440 nm, one of the highest activities reported for photoanodes so far.