Ma Jingwen, Wang Jun, Li Junbin, Tian Ying, Zhang Tianai
School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China.
PetroChina Planning and Engineering Institute, Beijing 100083, China.
Materials (Basel). 2023 Sep 7;16(18):6119. doi: 10.3390/ma16186119.
The exploitation of electrocatalysts with high activity and durability for the hydrogen evolution reaction is significant but also challenging for future energy systems. Transition metal phosphides (TMPs) have attracted a lot of attention due to their effective activity for the hydrogen evolution reaction, but the complicated preparation of metal phosphides remains a bottleneck. In this study, a green fabrication method is designed and proposed to construct N, P co-doped graphene (NPG)-supported cobalt phosphide (CoP) nanoparticles by using DNA as both N and P sources. Thanks to the synergistic effect of NPG and CoP, the CoP/NPG shows effective activity with a small overpotential of 144 mV and a low Tafel slope of 72 mV dec for the hydrogen evolution reaction. This study describes a successful green synthesis strategy for the preparation of high-performance TMPs.
开发具有高活性和耐久性的用于析氢反应的电催化剂对于未来能源系统而言意义重大，但也具有挑战性。过渡金属磷化物（TMPs）因其对析氢反应具有有效的活性而备受关注，但其复杂的制备过程仍然是一个瓶颈。在本研究中，设计并提出了一种绿色制造方法，通过使用DNA作为氮和磷源来构建氮、磷共掺杂石墨烯（NPG）负载的磷化钴（CoP）纳米颗粒。由于NPG和CoP的协同效应，CoP/NPG对析氢反应表现出有效的活性，过电位低至144 mV，塔菲尔斜率为72 mV dec-1。本研究描述了一种成功制备高性能TMPs的绿色合成策略。
