Electrocatalytic degradation of naphthenic acids using reduced graphene oxide modified nickel foam cathode: Role of surface structure and superoxide radical - Dazhen Li; Yilin Zhao; Jing Zhang; Yongjian Wang; Danyal Ghani; Xuejing Yang; Bingyan Zeng; Igor Ying Zhang; Rongfu Huang (Chemical Engineering Journal, 2024)