Lu Wen-Chao, Zhu Zi-Chun, Hou Bei-Hua, Zhang Hai-Xia, Liao Min-Ji, Wu Zhen-Yu, Chen Ping
School of Chemistry and Chemical Engineering, Anhui University Hefei Anhui 230601 P. R. China
School of Chemistry and Materials Engineering, Chizhou University Chizhou Anhui 247000 P. R. China.
RSC Adv. 2018 Jul 5;8(43):24392-24398. doi: 10.1039/c8ra03572e. eCollection 2018 Jul 2.
Many efficient and non-precious metal catalysts for oxygen reduction or hydrogen evolution reactions have been developed, but bifunctional catalysts for both oxygen reduction reaction and hydrogen evolution reactions are seldom reported despite their advantages. Herein, we designed the bulk preparation of heteroatom-doped nanoporous carbon catalysts using widely available and recyclable lobata powder as the carbon source. The typical product was N, P and Fe Tri-doped nano-porous carbon (N,P,Fe-NPC) with high surface area (BET surface area of 776.68 m g and electrochemical surface area of 55.0 mF cm). The typical N,P,Fe-NPC sample simultaneously exhibited high activities for oxygen reduction and hydrogen evolution reactions. Because of the high surface area and the tri-doping of N, P and Fe elements, the prepared material may have applications in other fields such as gas uptake, sensors, sewage treatment, and supercapacitors. The suggested approach is low-cost, simple and readily scalable.
人们已经开发出许多用于氧还原或析氢反应的高效且非贵金属催化剂，然而，尽管具有优势，但用于氧还原反应和析氢反应的双功能催化剂却鲜有报道。在此，我们设计了以广泛可得且可回收的羽扇豆粉为碳源，大量制备杂原子掺杂的纳米多孔碳催化剂。典型产物是具有高表面积（BET表面积为776.68 m²/g，电化学表面积为55.0 mF/cm²）的N、P和Fe三掺杂纳米多孔碳（N,P,Fe-NPC）。典型的N,P,Fe-NPC样品同时展现出对氧还原和析氢反应的高活性。由于高表面积以及N、P和Fe元素的三掺杂，所制备的材料可能在其他领域如气体吸附、传感器、污水处理和超级电容器等方面具有应用前景。所提出的方法成本低、操作简单且易于扩大规模。
