Single-crystalline, wormlike hematite photoanodes for efficient solar water splitting.

Single-crystalline, wormlike hematite photoanodes for efficient solar water splitting.
复制标题

DOI:
10.1038/srep02681
复制
发表时间:
2013
期刊:
影响因子:
4.6
通讯作者:
Lee, Jae Sung
Lee, Jae Sung
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Kim, Jae Young;Magesh, Ganesan;Youn, Duck Hyun;Jang, Ji-Wook;Kubota, Jun;Domen, Kazunari;Lee, Jae Sung

文献摘要

参考文献

被引文献

相似文献

报道了一种赤铁矿光阳极,在模拟1-太阳(100 mW/cm2)照射下,以1.23 V相对于RHE的电化学水氧化电流为4.32 mA/cm2,表现出稳定、破纪录的性能。该光电流相当于带隙为2.1 V的赤铁矿最大理论极限的约34%。光阳极产生的氢气和氧气的化学计量量接近光电流的期望值。通过全溶液法在透明导电氧化玻璃上直接生长的β-FeOOH纳米棒,在550℃和800℃的原位两步退火,产生了独特的单晶“虫状”形貌。此外,通过铂掺杂对其进行改性,改善了赤铁矿的电荷转移特性,并在表面添加了一种出氧共催化剂。
A hematite photoanode showing a stable, record-breaking performance of 4.32 mA/cm2 photoelectrochemical water oxidation current at 1.23 V vs. RHE under simulated 1-sun (100 mW/cm2) irradiation is reported. This photocurrent corresponds to ca. 34% of the maximum theoretical limit expected for hematite with a band gap of 2.1 V. The photoanode produced stoichiometric hydrogen and oxygen gases in amounts close to the expected values from the photocurrent. The hematitle has a unique single-crystalline “wormlike” morphology produced by in-situ two-step annealing at 550°C and 800°C of β-FeOOH nanorods grown directly on a transparent conducting oxide glass via an all-solution method. In addition, it is modified by platinum doping to improve the charge transfer characteristics of hematite and an oxygen-evolving co-catalyst on the surface.
DOI: 10.1557/jmr.2010.0024
发表时间: 2010-01-01
影响因子: 2.7
作者:
Choi, Jina;Park, Hyunwoong;Hoffmann, Michael R.
通讯作者: Hoffmann, Michael R.
DOI: 10.1021/cm800144q
发表时间: 2008-06-24
影响因子: 8.6
作者:
Hu, Yong-Sheng;Kleiman-Shwarsctein, Alan;McFarland, Eric W.
通讯作者: McFarland, Eric W.
DOI: 10.1039/c2ra21169f
发表时间: 2012-01-01
期刊: RSC ADVANCES
影响因子: 3.9
作者:
Kim, Jae Young;Jang, Ji-Wook;Lee, Jae Sung
通讯作者: Lee, Jae Sung
DOI: 10.1016/0254-0584(84)90001-4
发表时间: 1984-01-01
影响因子: 4.6
作者:
BENJELLOUN, D;BONNET, JP;HAGENMULLER, P
通讯作者: HAGENMULLER, P
DOI: 10.1021/ja1023767
发表时间: 2010-10-06
影响因子: 15
作者:
Kanan, Matthew W.;Yano, Junko;Nocera, Daniel G.
通讯作者: Nocera, Daniel G.