当前位置: X-MOL 学术Adv. Mater. Interfaces › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Bifunctional Hybrid Ni/Ni2P Nanoparticles Encapsulated by Graphitic Carbon Supported with N, S Modified 3D Carbon Framework for Highly Efficient Overall Water Splitting
Advanced Materials Interfaces ( IF 5.4 ) Pub Date : 2018-06-13 , DOI: 10.1002/admi.201800473
Yiqiang Sun 1, 2 , Tao Zhang 1, 2 , Xinyang Li 1 , Yu Bai 1 , Xianjun Lyu 3 , Guangqiang Liu 1 , Weiping Cai 1 , Yue Li 1
Affiliation  

The novel hybrid Ni/Ni2P nanoparticles with graphitic carbon coating supported by 3D N, S dual modified binder‐free macroporous carbon framework (Ni/Ni2P@3DNSC) are reported as an efficient bifunctional electrocatalysts for the production of hydrogen and oxygen. The obtained Ni/Ni2P@3DNSC electrode exhibits an excellent catalytic activity with a low overpotential of 231 mV for oxygen evolution reaction (OER) and 92 mV for hydrogen evolution reaction (HER) due to the strong coupled interface of Ni and Ni2P, synergistic effects between the hybrid Ni/Ni2P core and the graphitic carbon shell, the unique porous structure, and the heteroatoms doped effect. When both are used as cathode and anode, only a low cell voltage of 1.55 V is needed to achieve the current density of 10 mA cm−2. This work demonstrates a new avenue for the development of bifunctional nonprecious electrocatalysts for the sustainable energy utilization.

中文翻译:

N,S修饰的3D碳骨架支撑的石墨碳包裹的双功能杂化Ni / Ni2P纳米颗粒,可实现高效的总水分解

据报道,具有3D N,S双改性无粘结剂大孔碳骨架(Ni / Ni 2 P @ 3DNSC)支撑的具有石墨碳涂层的新型杂化Ni / Ni 2 P纳米颗粒是一种高效的生产氢气和氧气的双功能电催化剂。 。所获得的Ni / Ni 2 P @ 3DNSC电极具有优异的催化活性,由于Ni和Ni 2的强耦合界面,对氧释放反应(OER)的过电位为231 mV,对于氢释放反应(HER)的过电位为92 mV。P,混合Ni / Ni 2之间的协同效应P核和石墨碳壳,独特的多孔结构以及杂原子的掺杂作用。当两者都用作阴极和阳极时,仅需要1.55V的低电池电压即可达到10mA cm -2的电流密度。这项工作展示了开发双功能非贵金属电催化剂以实现可持续能源利用的新途径。
更新日期:2018-06-13
down
wechat
bug