Cu2O/Reduced Graphene Oxide Nanocomposites for Electrocatalytic Overall Water Splitting
Source abstract
Abstract
Hierarchical Cu2O/RGO nanocomposites were synthesized via a sustainable photoredox strategy and utilized as bifunctional electrocatalysts for oxygen and hydrogen evolution reactions (OER and HER) under alkaline conditions. The photoredox Cu2O/RGO electrocatalyst has potential for bifunctional electrocatalytic applications, owing to their small overpotentials (OER: 215 mV and HER: 142 mV), fast kinetics, Tafel slope of 58.2 mV dec–1, high mass performance (613.49 A g–1), high exchange current density (10.9 mA cm–2), long-term stability, and maximum Faradaic efficiency of 97% compared with hierarchical Cu2O, in situ synthesized Cu2O/RGO-1 catalyst, and most electrocatalysts reported thus far. The Cu2O/RGO-2 (+) ∥ Cu2O/RGO-2 (−) cell exhibits excellent durability for overall water splitting compared to the existing benchmark Pt@C (+) ∥ IrO2 (−) cell. This study presents a sustainable approach toward hydrogen fuel generation via overall water splitting and other catalytic and electrocatalytic applications.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Copper-based nanomaterials and applications · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry, Pusan National University, Busan46241, Republic of Korea
Department of Physics and Institute of High Pressure, Hanyang University, Seoul04763, Republic of Korea
Department of Physics, Pusan National University, Busan46241, Republic of Korea
Department of Earth Resources Engineering, Kyushu University, Fukuoka819-0395, Japan
Department of Chemistry, SRM Institute of Science and Technology, Chennai603203, India
Funding
Royal Society · National Research Foundation of Korea · Hanyang University · JSPS Invitational Fellowship
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