Polyaniline/Carbon Dots Composite as a Highly Efficient Metal-Free Dual-Functional Photoassisted Electrocatalyst for Overall Water Splitting
Source abstract
Abstract
Photoassisted electrocatalytic (P-EC) water splitting for H2 production has received much attention. Here, we report a metal-free bifunctional photoassisted catalyst of a polyaniline/carbon dots (PANI/CDs) composite for overall water splitting. In a neutral electrolyte, under visible light, the overpotentials of the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) for PANI/CDs/NF are reduced by 150 and 65 mV to reach the current densities of 30 and 20 mA cm–2, respectively. In a full water-splitting cell, under visible light, the current density is 13.27 mA cm–2 at 2.0 V, which increases by 62.8% compared with that under the dark conditions (8.15 mA cm–2). The in situ transient photovoltage (TPV) tests were used to study the light-induced effects on half-reactions of water splitting, as well as the charge-transfer kinetic characteristics at the catalyst interface.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Electrocatalysts for Energy Conversion · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Road, Suzhou 215123, Jiangsu, P. R. China
Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa 999078, Macau SAR, P. R. China
Funding
State Administration of Foreign Experts Affairs · Collaborative Innovation Center of Suzhou Nano Science and Technology · Ministry of Education of the People's Republic of China · Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Jiangsu Province · National Natural Science Foundation of China · Guangdong Province
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