期刊
CHEMICAL ENGINEERING JOURNAL
卷 450, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2022.137789
关键词
2D/2D heterostructure; Reduced graphene oxide; Graphitic carbon nitride; Electrocatalyst; Full water-splitting
资金
- National Research Foundation of Korea - Ministry of Science and the Korean Government (MSIT) , Republic of Korea [NRF-2021M3H4A1A03076644, 2022R1A2C1011559, 2022R1A2C1012419]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP) from Ministry of Trade, Industry & Energy, Republic of Korea [20213030040590]
- KENTECH Research Grant - Korea Institute of Energy Technology, Republic of Korea [KRG2022-01-016]
- Federal Ministry of Education and Research (BMBF) [57429784]
- German Research Initiative via the key profile area quantum matter and materials (QM2) of the University of Cologne
- German Excellence Initiative via the key profile area ?
- National Research Foundation of Korea [2022R1A2C1011559, 2022R1A2C1012419] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A carbon-based electrocatalyst, g-C3N4/rGO, was synthesized via a simple electrostatic self-assembly method and used for full water-splitting. Compared to other 2D structured materials, g-C3N4/rGO exhibited lower overpotential and Tafel slope, indicating higher efficiency.
To increase the productivity of hydrogen and oxygen generation, the carbon-based electrocatalyst with 2D/2D structure, graphitic carbon nitride with reduced graphene oxide (g-C3N4/rGO), was synthesized via a facile electrostatic self-assembly method and was used as electrocatalyst for full water-splitting. In the alkaline electrolyte, g-C3N4/rGO showed lower overpotential and Tafel slope of hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively, than the other 2D structured materials. The DFT calculation simulates the spontaneous electron transfer, low charge transfer resistance, and internal electric field of g-C3N4/rGO electrocatalysts. Especially, the internal electric field between the g-C3N4 and rGO is beneficial in solving the local pH reduction problem and electron transport. Consequentially, our study elucidates that 2D/2D structure, inducing the internal electric field, is an effective way to enhance the performance of the full water-splitting system.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据