@article{ART003273920},
author={Jong Yoon Lee and Seung‑chul Choi and Dae Soon Im and Mansu Kim and Han‑Ik Joh},
title={Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={5},
pages={2411-2421},
doi={10.1007/s42823-025-00933-3}
TY - JOUR
AU - Jong Yoon Lee
AU - Seung‑chul Choi
AU - Dae Soon Im
AU - Mansu Kim
AU - Han‑Ik Joh
TI - Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells
JO - Carbon Letters
PY - 2025
VL - 35
IS - 5
PB - Korean Carbon Society
SP - 2411
EP - 2421
SN - 1976-4251
AB - Developing highly durable and active catalysts is essential for improving the performance and longevity of proton exchange membrane fuel cells (PEMFCs). In this study, we propose a novel strategy to enhance catalyst dispersion and stability by incorporating pyrrolic nitrogen-rich carbon (pNC) quantum dots into highly crystalline carbon supports. The introduction of pNC generates strong anchoring sites for Pt nanoparticles, facilitating uniform dispersion and minimizing aggregation, which are key factors in enhancing catalytic performance and durability. The synthesized Pt/CVC150 catalyst exhibited excellent oxygen reduction reaction activity, with a half-wave potential of 0.842 V and a limiting current density of 6.3 mA cm−2. Under accelerated stress test conditions, the catalyst retained 61.4% of its initial peak power density after prolonged cycling, indicating enhanced durability. Furthermore, single cell testing confirmed its improved electrochemical activity and stability of the Pt/CVC150 catalyst in a practical PEMFC operating environment. These findings suggest that the incorporation of heteroatom-doped carbon moieties onto carbon supports represents a promising strategy for the development of next-generation PEMFC catalysts with enhanced performance and longevity.
KW - Proton exchange membrane fuel cell (PEMFC);Oxygen reduction reaction (ORR);Highly crystalline carbon;Pyrrolic N-rich carbon (pNC) quantum dots;Anchoring site doping
DO - 10.1007/s42823-025-00933-3
ER -
Jong Yoon Lee, Seung‑chul Choi, Dae Soon Im, Mansu Kim and Han‑Ik Joh. (2025). Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells. Carbon Letters, 35(5), 2411-2421.
Jong Yoon Lee, Seung‑chul Choi, Dae Soon Im, Mansu Kim and Han‑Ik Joh. 2025, "Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells", Carbon Letters, vol.35, no.5 pp.2411-2421. Available from: doi:10.1007/s42823-025-00933-3
Jong Yoon Lee, Seung‑chul Choi, Dae Soon Im, Mansu Kim, Han‑Ik Joh "Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells" Carbon Letters 35.5 pp.2411-2421 (2025) : 2411.
Jong Yoon Lee, Seung‑chul Choi, Dae Soon Im, Mansu Kim, Han‑Ik Joh. Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells. 2025; 35(5), 2411-2421. Available from: doi:10.1007/s42823-025-00933-3
Jong Yoon Lee, Seung‑chul Choi, Dae Soon Im, Mansu Kim and Han‑Ik Joh. "Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells" Carbon Letters 35, no.5 (2025) : 2411-2421.doi: 10.1007/s42823-025-00933-3
Jong Yoon Lee; Seung‑chul Choi; Dae Soon Im; Mansu Kim; Han‑Ik Joh. Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells. Carbon Letters, 35(5), 2411-2421. doi: 10.1007/s42823-025-00933-3
Jong Yoon Lee; Seung‑chul Choi; Dae Soon Im; Mansu Kim; Han‑Ik Joh. Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells. Carbon Letters. 2025; 35(5) 2411-2421. doi: 10.1007/s42823-025-00933-3
Jong Yoon Lee, Seung‑chul Choi, Dae Soon Im, Mansu Kim, Han‑Ik Joh. Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells. 2025; 35(5), 2411-2421. Available from: doi:10.1007/s42823-025-00933-3
Jong Yoon Lee, Seung‑chul Choi, Dae Soon Im, Mansu Kim and Han‑Ik Joh. "Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells" Carbon Letters 35, no.5 (2025) : 2411-2421.doi: 10.1007/s42823-025-00933-3
