文献类型：期刊文献

英文题名：Anti-corrosion porous RuO2/NbC anodes for the electrochemical oxidation of phenol

作者：Ma, Jing[1];Qin, Guotong[1];Wei, Wei[2];Xiao, Tianliang[1];Liu, Shaomin[3];Jiang, Lei[1]

第一作者：Ma, Jing

通讯作者：Qin, GT[1]

机构：[1]Beihang Univ, Minist Educ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 102206, Peoples R China;[2]Beijing Union Univ, Coll Biochem Engn, 18 Sanqu Fatouxili, Beijing 100023, Peoples R China;[3]Curtin Univ, Dept Chem Engn, Perth, WA, Australia

第一机构：Beihang Univ, Minist Educ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 102206, Peoples R China

通讯机构：[1]corresponding author), Beihang Univ, Minist Educ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 102206, Peoples R China.

年份：2019

卷号：9

期号：30

起止页码：17373-17381

外文期刊名：RSC ADVANCES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000471912700049)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant No. 51678019).

语种：英文

外文关键词：Anodes - Biodegradation - Carbides - Carbothermal reduction - Catalyst activity - Chemical oxygen demand - Corrosion resistance - Electrochemical oxidation - Energy efficiency - Niobium compounds - Phenols - Protective coatings - Ruthenium compounds

摘要：Efficient anode materials with porous structures have drawn increasing attention due to their high specific surface area, which can compensate for the slow reaction rate of electrochemical oxidation. However, the use of these materials is often limited due to their poor corrosion resistance. Herein, we report a facile scale-up method, by carbothermal reduction, for the preparation of porous niobium carbide to be used as an anode for the electrochemical oxidation of phenol in water. No niobium ions were detected when the anodes were under aggressive attack by sulfuric acid and under electrochemical corrosion tests with a current density less than 20.98 mA cm(-2). The porous niobium carbide was further modified by applying a ruthenium oxide coating to improve its catalytic activity. The removal rates of phenol and chemical oxygen demand by the RuO2/NbC anode reached 1.87 x 10(-2) mg min(-1) cm(-2) and 6.33 x 10(-2) mg min(-1) cm(-2), respectively. The average current efficiency was 85.2%. Thus, an anti-corrosion, highly catalytically active and energy-efficient porous RuO2/NbC anode for the degradation of aqueous phenol in wastewater was successfully prepared.