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, Guotong

机构：[1] Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University, Shahe Campus, Beijing, 102206, China; [2] College of Biochemical Engineering, Beijing Union University, 18 Sanqu Fatouxili, Chaoyang District, Beijing, 100023, China; [3] Department of Chemical Engineering, Curtin University, Perth, WA, 6845, Australia

第一机构：Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University, Shahe Campus, Beijing, 102206, China

通讯机构：[1]Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University, Shahe Campus, Beijing, 102206, 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：EI(收录号：20192507083072);Scopus(收录号：2-s2.0-85067434998)

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 × 10-2 mg min-1 cm-2 and 6.33 × 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. ? 2019 The Royal Society of Chemistry.