National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China.
Chem Commun (Camb). 2023 Jun 20;59(50):7807-7810. doi: 10.1039/d3cc00858d.
Herein, we report a facile strategy for constructing hybrid coordination configurations by combining functionalized graphene quantum dots (GQDs) with CoPc (CoPc/R-GQDs, with R being -NH or -OH) for electrochemical CO reduction. Benefiting from the high density of functional groups that can be provided by GQDs and the strong electron-donating property of -NH, the examined CoPc/NH-GQDs achieved a 100% faradaic efficiency for CO formation (FE) at -0.8 to -0.9 V RHE, and high FE (over 90%) over a wide potential range of 500 mV. This work has presented a novel approach for catalyst design, specifically involving molecular engineering of quantum dots, which can also be applied to other essential electrochemical reactions.
在此，我们报告了一种通过将功能化石墨烯量子点 (GQDs) 与 CoPc（CoPc/R-GQDs，其中 R 为-NH 或-OH）结合来构建杂化配位构型的简便策略，用于电化学 CO 还原。受益于 GQDs 可提供的高密度官能团和-NH 的强供电子性质，所研究的 CoPc/NH-GQDs 在 -0.8 至-0.9 V RHE 下实现了 100% 的 CO 形成法拉第效率 (FE)，并且在 500 mV 的宽电位范围内具有高 FE（超过 90%）。这项工作提出了一种用于催化剂设计的新方法，特别是涉及量子点的分子工程，该方法也可应用于其他重要的电化学反应。
