Abstract：
:Nanostructured 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 Ω cm-2), higher porosity (0.90), enhanced roughness factor (181), and larger voltammetric charge value (57.4 mC cm-2). Electrocatalytic 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 × 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.
journal_name
Chemospherejournal_title
Chemosphereauthors
Asim S,Zhu Y,Rana M,Yin J,Shah MW,Li Y,Wang Cdoi
10.1016/j.chemosphere.2016.11.119subject
Has Abstractpub_date
2017-02-01 00:00:00pages
651-659eissn
0045-6535issn
1879-1298pii
S0045-6535(16)31662-9journal_volume
169pub_type
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