Affiliation:
1. Key laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials Science College of Geography and Environmental Sciences Zhejiang Normal University Jinhua Zhejiang 321004 P. R. China
2. Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials Jiangsu Key Laboratory of New Power Batteries School of Chemistry and Materials Science Nanjing Normal University Nanjing Jiangsu 210023 P. R. China
Abstract
AbstractTo address the imperative challenge of producing hydrogen in a low‐energy consumption electrocatalytic system, this study emphasizes the utilization of thermodynamically favorable biomass oxidation for achieving energy‐efficient hydrogen generation. This research integrates ultralow PtO2‐loaded flower‐like nanosheets (denoted as PtO2@Cu2O/Cu FNs) with Cu0/Cu+ pairs and Pt─O bonds, thereby yielding substantial enhancement in both hydrogen evolution reaction (HER, −0.042 VRHE at 10 mA cm−2) and furfural oxidation reaction (FFOR, 0.09 VRHE at 10 mA cm−2). As validated by DFT calculations, the dual built‐in electric field (BIEF) is elucidated as the driving force behind the enhanced activities, in which Pt─O bonds expedite the HER, while Cu+/Cu0 promotes low‐potential FFOR. By coupling the FFOR and HER together, the resulting bipolar‐hydrogen production system requires a low power input (0.5072 kWh per m3) for producing H2. The system can generate bipolar hydrogen and high value‐added furoic acid, significantly enhancing hydrogen production efficiency and concurrently mitigating energy consumption.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Jiangsu Province