@article{ART003187581},
author={Dong Hyun You and Tae Kwang An and Yun Seok Jang and Ryu, Jeong-ho},
title={Synthesis of rGO/CoNi LDH composite and enhancement of oxygen evolution reaction},
journal={Journal of the Korean Crystal Growth and Crystal Technology},
issn={1225-1429},
year={2025},
volume={35},
number={1},
pages={21-25},
doi={10.6111/JKCGCT.2025.35.1.021}
TY - JOUR
AU - Dong Hyun You
AU - Tae Kwang An
AU - Yun Seok Jang
AU - Ryu, Jeong-ho
TI - Synthesis of rGO/CoNi LDH composite and enhancement of oxygen evolution reaction
JO - Journal of the Korean Crystal Growth and Crystal Technology
PY - 2025
VL - 35
IS - 1
PB - The Korea Association Of Crystal Growth, Inc.
SP - 21
EP - 25
SN - 1225-1429
AB - In this study, we propose a method to enhance the oxygen evolution reaction (OER) catalytic performance by synthesizing a reduced graphene oxide (rGO) and cobalt-nickel layered double hydroxide (CoNi LDH) composite. WhileCoNi LDH exhibits high electrochemical activity, its low conductivity limits its catalytic efficiency. To overcome this limitation, rGO, which possesses high conductivity, was incorporated to improve electron transport and enhance thestructural stability of the catalyst. The rGO/CoNi LDH composite was synthesized via a hydrothermal method, and its structural and electrochemical properties were analyzed with varying rGO content. FE-SEM and EDS analyses confirmed the uniform dispersion of rGO within the composite structure of CoNi LDH. Electrochemical measurements, including LSV, Tafel analysis, and EIS, demonstrated that the optimal rGO content (10 mL) provided the lowest overpotential and highest electrical conductivity. These findings suggest a new approach for improving OER catalyst performance and contribute to the development of highly efficient electrochemical catalysts.
KW - OER;rGO;CoNi LDH;Water splitting
DO - 10.6111/JKCGCT.2025.35.1.021
ER -
Dong Hyun You, Tae Kwang An, Yun Seok Jang and Ryu, Jeong-ho. (2025). Synthesis of rGO/CoNi LDH composite and enhancement of oxygen evolution reaction. Journal of the Korean Crystal Growth and Crystal Technology, 35(1), 21-25.
Dong Hyun You, Tae Kwang An, Yun Seok Jang and Ryu, Jeong-ho. 2025, "Synthesis of rGO/CoNi LDH composite and enhancement of oxygen evolution reaction", Journal of the Korean Crystal Growth and Crystal Technology, vol.35, no.1 pp.21-25. Available from: doi:10.6111/JKCGCT.2025.35.1.021
Dong Hyun You, Tae Kwang An, Yun Seok Jang, Ryu, Jeong-ho "Synthesis of rGO/CoNi LDH composite and enhancement of oxygen evolution reaction" Journal of the Korean Crystal Growth and Crystal Technology 35.1 pp.21-25 (2025) : 21.
Dong Hyun You, Tae Kwang An, Yun Seok Jang, Ryu, Jeong-ho. Synthesis of rGO/CoNi LDH composite and enhancement of oxygen evolution reaction. 2025; 35(1), 21-25. Available from: doi:10.6111/JKCGCT.2025.35.1.021
Dong Hyun You, Tae Kwang An, Yun Seok Jang and Ryu, Jeong-ho. "Synthesis of rGO/CoNi LDH composite and enhancement of oxygen evolution reaction" Journal of the Korean Crystal Growth and Crystal Technology 35, no.1 (2025) : 21-25.doi: 10.6111/JKCGCT.2025.35.1.021
Dong Hyun You; Tae Kwang An; Yun Seok Jang; Ryu, Jeong-ho. Synthesis of rGO/CoNi LDH composite and enhancement of oxygen evolution reaction. Journal of the Korean Crystal Growth and Crystal Technology, 35(1), 21-25. doi: 10.6111/JKCGCT.2025.35.1.021
Dong Hyun You; Tae Kwang An; Yun Seok Jang; Ryu, Jeong-ho. Synthesis of rGO/CoNi LDH composite and enhancement of oxygen evolution reaction. Journal of the Korean Crystal Growth and Crystal Technology. 2025; 35(1) 21-25. doi: 10.6111/JKCGCT.2025.35.1.021
Dong Hyun You, Tae Kwang An, Yun Seok Jang, Ryu, Jeong-ho. Synthesis of rGO/CoNi LDH composite and enhancement of oxygen evolution reaction. 2025; 35(1), 21-25. Available from: doi:10.6111/JKCGCT.2025.35.1.021
Dong Hyun You, Tae Kwang An, Yun Seok Jang and Ryu, Jeong-ho. "Synthesis of rGO/CoNi LDH composite and enhancement of oxygen evolution reaction" Journal of the Korean Crystal Growth and Crystal Technology 35, no.1 (2025) : 21-25.doi: 10.6111/JKCGCT.2025.35.1.021
