@article{ART003342689},
author={Zheng Mingxia and Wang YuYu and Xu Jing and Jin Zhiliang},
title={Rational construction of graphdiyne-based ohmic junctions to promote visible-light hydrogen evolution through interfacial charge transfer dynamics},
journal={Carbon Letters},
issn={1976-4251},
year={2026},
volume={36},
number={2},
pages={841-854},
doi={10.1007/s42823-026-01032-7}
TY - JOUR
AU - Zheng Mingxia
AU - Wang YuYu
AU - Xu Jing
AU - Jin Zhiliang
TI - Rational construction of graphdiyne-based ohmic junctions to promote visible-light hydrogen evolution through interfacial charge transfer dynamics
JO - Carbon Letters
PY - 2026
VL - 36
IS - 2
PB - Korean Carbon Society
SP - 841
EP - 854
SN - 1976-4251
AB - Constructing an efficient electron coupling path is essential for enhancing photocatalytic hydrogen evolution. Here, guided by theoretical design and experimental validation, a Graphdiyne/CoBOx (GDY/CB) ohmic junction catalyst was developed, enabling highly efficient and directional transfer of photogenerated carriers. Density functional theory (DFT) calculations reveal that interfacial bonding between GDY and CoBOx induces strong electronic coupling, suppresses electron backflow, and promotes charge delocalization. Microstructural analyses (SEM/TEM) confirm that the 2D layered GDY framework intimately contacts CoBOx nanosheets, forming a “high-speed channel” for electron migration. In situ XPS under illumination directly captures the photoinduced electron transfer from CoBOx to GDY, evidencing the establishment of a unidirectional transfer pathway. Photoelectrochemical tests, together with the above characterizations, indicate that interfacial coupling markedly enhances hydrogen evolution by reducing transport resistance and optimizing surface kinetics. The optimized GDY/CB-30% exhibits a hydrogen evolution rate of 9.91 mmol·g−1·h−1, 7.56 times higher than pristine GDY and superior to most non-noble-metal photocatalysts. This work highlights carbon-based ohmic junctions as a strategy to overcome bandgap limitations through engineered electron transport.
KW - Graphdiyne Ohmic junction Electron coupling interface Photo-generated charge separation Photocatalytic H2 evolution reaction
DO - 10.1007/s42823-026-01032-7
ER -
Zheng Mingxia, Wang YuYu, Xu Jing and Jin Zhiliang. (2026). Rational construction of graphdiyne-based ohmic junctions to promote visible-light hydrogen evolution through interfacial charge transfer dynamics. Carbon Letters, 36(2), 841-854.
Zheng Mingxia, Wang YuYu, Xu Jing and Jin Zhiliang. 2026, "Rational construction of graphdiyne-based ohmic junctions to promote visible-light hydrogen evolution through interfacial charge transfer dynamics", Carbon Letters, vol.36, no.2 pp.841-854. Available from: doi:10.1007/s42823-026-01032-7
Zheng Mingxia, Wang YuYu, Xu Jing, Jin Zhiliang "Rational construction of graphdiyne-based ohmic junctions to promote visible-light hydrogen evolution through interfacial charge transfer dynamics" Carbon Letters 36.2 pp.841-854 (2026) : 841.
Zheng Mingxia, Wang YuYu, Xu Jing, Jin Zhiliang. Rational construction of graphdiyne-based ohmic junctions to promote visible-light hydrogen evolution through interfacial charge transfer dynamics. 2026; 36(2), 841-854. Available from: doi:10.1007/s42823-026-01032-7
Zheng Mingxia, Wang YuYu, Xu Jing and Jin Zhiliang. "Rational construction of graphdiyne-based ohmic junctions to promote visible-light hydrogen evolution through interfacial charge transfer dynamics" Carbon Letters 36, no.2 (2026) : 841-854.doi: 10.1007/s42823-026-01032-7
Zheng Mingxia; Wang YuYu; Xu Jing; Jin Zhiliang. Rational construction of graphdiyne-based ohmic junctions to promote visible-light hydrogen evolution through interfacial charge transfer dynamics. Carbon Letters, 36(2), 841-854. doi: 10.1007/s42823-026-01032-7
Zheng Mingxia; Wang YuYu; Xu Jing; Jin Zhiliang. Rational construction of graphdiyne-based ohmic junctions to promote visible-light hydrogen evolution through interfacial charge transfer dynamics. Carbon Letters. 2026; 36(2) 841-854. doi: 10.1007/s42823-026-01032-7
Zheng Mingxia, Wang YuYu, Xu Jing, Jin Zhiliang. Rational construction of graphdiyne-based ohmic junctions to promote visible-light hydrogen evolution through interfacial charge transfer dynamics. 2026; 36(2), 841-854. Available from: doi:10.1007/s42823-026-01032-7
Zheng Mingxia, Wang YuYu, Xu Jing and Jin Zhiliang. "Rational construction of graphdiyne-based ohmic junctions to promote visible-light hydrogen evolution through interfacial charge transfer dynamics" Carbon Letters 36, no.2 (2026) : 841-854.doi: 10.1007/s42823-026-01032-7
