IMR OpenIR
Abnormal Cathodic Photocurrent Generated on an n-Type FeOOH Nanorod-Array Photoelectrode
Chen, Hongjun; Lyu, Miaoqiang; Liu, Gang; Wang, Lianzhou; Wang, LZ (reprint author), Univ Queensland, Sch Chem Engn, Nanomat Ctr, St Lucia, Qld 4072, Australia.; Wang, LZ (reprint author), Univ Queensland, Australian Inst Bioengn & Nanotechnol, St Lucia, Qld 4072, Australia.; Liu, G (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2016-03-24
Source PublicationCHEMISTRY-A EUROPEAN JOURNAL
ISSN0947-6539
Volume22Issue:14Pages:4802-4808
AbstractA simple, wet-chemical method for the synthesis of an FeOOH nanorod-array photoelectrode on fluorine-doped tin oxide (FTO) glass is reported. Nanorods of diameter about 35nm and length about 300nm have been vertically grown on an FTO substrate. Upon calcination, the FeOOH phase could be easily converted to a hematite structure while maintaining the shape of the nanorod array. An interesting abnormal cathodic photocurrent is generated on the FeOOH nanorod-array photoelectrode under illumination, which is totally different from that obtained on a calcined hematite photoelectrode under the same experimental conditions. The cathodic photocurrent density generated on the FeOOH photoelectrode can also be tuned by applying an electrochemical anodic or cathodic treatment. Detailed analysis has revealed that higher valence state Fe-IV species in the FeOOH photoelectrode play an important role in sacrificing the photoexcited electrons for generation of the cathodic photocurrent. Comparison between the FeOOH and hematite photoelectrodes allows for a better understanding of the interplay between crystal structure, surface reactions, and photocurrent. The findings on this new abnormal phenomenon could also provide guidance for the design of new types of semiconducting photoelectrochemical devices.
description.department[chen, hongjun ; lyu, miaoqiang ; wang, lianzhou] univ queensland, sch chem engn, nanomat ctr, st lucia, qld 4072, australia ; [chen, hongjun ; lyu, miaoqiang ; wang, lianzhou] univ queensland, australian inst bioengn & nanotechnol, st lucia, qld 4072, australia ; [liu, gang] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china
KeywordIron Oxides Nanorod Arrays Nanostructures Photocurrent Water Splitting
Subject AreaChemistry
Funding OrganizationAustralian Research Council; University of Queensland
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75931
Collection中国科学院金属研究所
Corresponding AuthorWang, LZ (reprint author), Univ Queensland, Sch Chem Engn, Nanomat Ctr, St Lucia, Qld 4072, Australia.; Wang, LZ (reprint author), Univ Queensland, Australian Inst Bioengn & Nanotechnol, St Lucia, Qld 4072, Australia.; Liu, G (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Chen, Hongjun,Lyu, Miaoqiang,Liu, Gang,et al. Abnormal Cathodic Photocurrent Generated on an n-Type FeOOH Nanorod-Array Photoelectrode[J]. CHEMISTRY-A EUROPEAN JOURNAL,2016,22(14):4802-4808.
APA Chen, Hongjun.,Lyu, Miaoqiang.,Liu, Gang.,Wang, Lianzhou.,Wang, LZ .,...&Liu, G .(2016).Abnormal Cathodic Photocurrent Generated on an n-Type FeOOH Nanorod-Array Photoelectrode.CHEMISTRY-A EUROPEAN JOURNAL,22(14),4802-4808.
MLA Chen, Hongjun,et al."Abnormal Cathodic Photocurrent Generated on an n-Type FeOOH Nanorod-Array Photoelectrode".CHEMISTRY-A EUROPEAN JOURNAL 22.14(2016):4802-4808.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, Hongjun]'s Articles
[Lyu, Miaoqiang]'s Articles
[Liu, Gang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Hongjun]'s Articles
[Lyu, Miaoqiang]'s Articles
[Liu, Gang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Hongjun]'s Articles
[Lyu, Miaoqiang]'s Articles
[Liu, Gang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.