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Nanostructured 3D-porous graphene hydrogel based Ti/Sb-SnO2-Gr electrode with enhanced electrocatalytic activity
Asim, S (Asim, Sumreen); Zhu, YQ (Zhu, Yunqing); Rana, M (Rana, Masud); Yin, J (Yin, Jiao); Shah, MW (Shah, Muhammad Wajid); Li, YX (Li, Yingxuan); Wang, CY (Wang, Chuanyi); Zhu, YQ; Wang, CY
2017
Source PublicationCHEMOSPHERE
Volume169Issue:2Pages:651-659
AbstractNanostructured highly porous 3D-Ti/Sb-SnO2-Gr electrode, based on 3D porous graphene hydrogel was fabricated via a fast-evaporation technique through layer by layer (LBL) deposition. The 3D pores are uniformly distributed on the high fidelity of substrate with pore sizes of 7-12 nm, as confirmed by SEM analysis. Compared to Ti/Sb-SnO2 electrode, the fabricated 3D porous electrode possesses high oxygen evolution potential (2.40 V), smaller charge transfer resistance (29.40 Omega cm(-2)), higher porosity (0.90), enhanced roughness factor (181), and larger voltammetric charge value (57.4 mC cm(-2)). Efectrocatalytic oxidation of Rhodamine B (RhB) was employed to evaluate the efficiency of the fabricated 3D-Ti/Sb-SnO2-Gr anode. The results show that the electrochemical reaction follows pseudo first order kinetics with rate constant (k) value of 4.93 x 10(-2) min(-1), which is about 3,91 times higher compared to flat Ti/Sb-SnO2. The fabricated electrode demonstrates better stability and low specific energy consumption signifying its potential usage in electrocatalysis.
KeywordGraphene Hydrogel 3d-porous Anode Electrocatalysis Charge Transfer
Indexed BySCI
WOS IDWOS:000393003300077
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Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/4730
Collection环境科学与技术研究室
Corresponding AuthorZhu, YQ; Wang, CY
Affiliation1.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Asim, S ,Zhu, YQ ,Rana, M ,et al. Nanostructured 3D-porous graphene hydrogel based Ti/Sb-SnO2-Gr electrode with enhanced electrocatalytic activity[J]. CHEMOSPHERE,2017,169(2):651-659.
APA Asim, S .,Zhu, YQ .,Rana, M .,Yin, J .,Shah, MW .,...&Wang, CY.(2017).Nanostructured 3D-porous graphene hydrogel based Ti/Sb-SnO2-Gr electrode with enhanced electrocatalytic activity.CHEMOSPHERE,169(2),651-659.
MLA Asim, S ,et al."Nanostructured 3D-porous graphene hydrogel based Ti/Sb-SnO2-Gr electrode with enhanced electrocatalytic activity".CHEMOSPHERE 169.2(2017):651-659.
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