Gold artichokes for enhanced photocatalysis

被引：12
作者：
Chandrasekaran, Sundaram [1 ]
Hur, Seung Hyun [1 ]
Choi, Won Mook [1 ]
Chung, Jin Suk [1 ]
Kim, Eui Jung [1 ]
机构：
[1] Univ Ulsan, Sch Chem Engn, Ulsan 680749, South Korea
来源：
MATERIALS LETTERS | 2015年 / 160卷
关键词：
PEC cell; Photocatalyst; Gold artichokes; Water splitting; SURFACE-PLASMON RESONANCE; NANOPARTICLES; METAL; SOLAR;
D O I：
10.1016/j.matlet.2015.07.091
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanocrystalline gold artichokes were synthesized via a facile solution method. Gold artichoke photo-anode exhibited monolayered and multilayered photocatalytic water splitting performances. An overall water splitting photocurrent density of similar to 0.53 mA/cm(2) at 1.23 V vs RHE with an incident photon to current conversion efficiency of 1.32% was obtained under UV light (similar to 360 nm) irradiation. This novel Au-artichoke structure is a promising photocatalyst beyond environmental remediation. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：92 / 95
页数：4
相关论文
共 23 条
[1]   Application of copper-gold alloys in catalysis: current status and future perspectives [J].
Bracey, Charlotte L. ;
Ellis, Peter R. ;
Hutchings, Graham J. .
CHEMICAL SOCIETY REVIEWS, 2009, 38 (08) :2231-2243
[2]   The Electrochemistry of Gold: I The Redox Behaviour of the Metal in Aqueous Media [J].
Burke, L. ;
Nugent, P. .
GOLD BULLETIN, 1997, 30 (02) :43-53
[3]   PREMONOLAYER OXIDATION AND ITS ROLE IN ELECTROCATALYSIS [J].
BURKE, LD .
ELECTROCHIMICA ACTA, 1994, 39 (11-12) :1841-1848
[4]   Highly-ordered maghemite/reduced graphene oxide nanocomposites for high-performance photoelectrochemical water splitting [J].
Chandrasekaran, Sundaram ;
Hur, Seung Hyun ;
Kim, Eui Jung ;
Rajagopalan, Balasubramaniyan ;
Babu, Kadumudi Firoz ;
Senthilkumar, Velusamy ;
Chung, Jin Suk ;
Choi, Won Mook ;
Kim, Yong Soo .
RSC ADVANCES, 2015, 5 (37) :29159-29166
[5]   3D crumpled RGO-Co3O4 photocatalysts for UV-induced hydrogen evolution reaction [J].
Chandrasekaran, Sundaram ;
Choi, Won Mook ;
Chung, Jin Suk ;
Hur, Seung Hyun ;
Kim, Eui Jung .
MATERIALS LETTERS, 2014, 136 :118-121
[6]  
Clavero C, 2014, NAT PHOTONICS, V8, P95, DOI [10.1038/nphoton.2013.238, 10.1038/NPHOTON.2013.238]
[7]   Photocatalytic Activity Enhanced by Plasmonic Resonant Energy Transfer from Metal to Semiconductor [J].
Cushing, Scott K. ;
Li, Jiangtian ;
Meng, Fanke ;
Senty, Tess R. ;
Suri, Savan ;
Zhi, Mingjia ;
Li, Ming ;
Bristow, Alan D. ;
Wu, Nianqiang .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (36) :15033-15041
[8]   Electrochemical water splitting by gold: evidence for an oxide decomposition mechanism [J].
Diaz-Morales, Oscar ;
Calle-Vallejo, Federico ;
de Munck, Casper ;
Koper, Marc T. M. .
CHEMICAL SCIENCE, 2013, 4 (06) :2334-2343
[9]   Why gold nanoparticles are more precious than pretty gold: Noble metal surface plasmon resonance and its enhancement of the radiative and nonradiative properties of nanocrystals of different shapes [J].
Eustis, S ;
El-Sayed, MA .
CHEMICAL SOCIETY REVIEWS, 2006, 35 (03) :209-217
[10]   Facile synthesis of pentacle gold-copper alloy nanocrystals and their plasmonic and catalytic properties [J].
He, Rong ;
Wang, You-Cheng ;
Wang, Xiaoyong ;
Wang, Zhantong ;
Liu, Gang ;
Zhou, Wei ;
Wen, Longping ;
Li, Qunxiang ;
Wang, Xiaoping ;
Chen, Xiaoyuan ;
Zeng, Jie ;
Hou, J. G. .
NATURE COMMUNICATIONS, 2014, 5
123