Manipulation of Hydrogen Transfer Behaviors by RhCu Alloying Enables an All‐in‐one Sustainable “Furfural‐Nitrate” System
Abstract
Abstract Nitrate and furfural are typical wastes mainly from industrialization and agriculturalization progresses, and their clean conversions are still very challenging for a sustainable future. Nevertheless, scant attention has been devoted to the core issues: the rational integration of two wastes recycling and the targeted manipulation of hydrogen (H*) transfer behaviors to address their sluggish reaction kinetics. Herein, we report an all‐in‐one electrochemical energy system that is thermodynamically designed by coupling nitrate reduction (NO 3 RR) and furfural oxidation reactions (FORs) together. Particularly, the poor kinetics for both electrode reactions are efficaciously optimized by the bifunctional electrocatalyst of RhCu alloy nanowires on copper foam (RhCu NW/CF) with highly improved dual‐directional H*‐modulation performances, thus initializing NO 3 RR for NH 3 synthesis at +0.31 V and driving FOR for H 2 harvest at an onset potential lower than 0 V. Eventually, such integrated “Furfural‐Nitrate” system can simultaneously effectuate the electricity energy supply (10.76 mW cm −2 ), wastewater purification, cathodic hydrogen storage (NH 3 ), anodic H 2 production, and biomass upgrading. Hence, it provides a promising perspective of “turning waste into treasure” in a rational manner, justifying its all‐in‐one property in addressing the global challenge of sustainable energy.
Article Details
Authors (14)
Xin Long
Department of Mechanical Engineering
Bin Zhao
Danni Liu
Guodong Fu
School of Chemistry and Chemical Engineering Southeast University Jiangning Nanjing Jiangsu 211189 China
Hang Yang
Renfei Feng
Canadian Light Source Inc.
Ning Chen
College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection
Hekun Ding
Shenzhen Key Laboratory of Energy Electrocatalytic Materials Guangdong Research Center for Interfacial Engineering of Functional Materials Guangdong Provincial Key Laboratory of New Energy Materials Service Safety College of Materials Science and Engineering Shenzhen University Shenzhen 518060 China
Jiayi Wu
Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
Yuanfeng Liao
Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, Shenzhen Key Laboratory of Energy Electrocatalytic Materials, College of Materials Science and Engineering
Shaoqing Liu
Department of Organismic and Evolutionary Biology, Harvard University
Yu Zhang
Xiangya Hospital, Central South University Changsha China
Xian‐Zhu Fu
Shenzhen Key Laboratory of Energy Electrocatalytic Materials Guangdong Provincial Key Laboratory of New Energy Materials Service Safety College of Materials Science and Engineering, Shenzhen University Shenzhen Guangdong China
Jing‐Li Luo
Shenzhen Key Laboratory of Energy Electrocatalytic Materials Guangdong Provincial Key Laboratory of New Energy Materials Service Safety College of Materials Science and Engineering, Shenzhen University Shenzhen Guangdong China