Gervas Charles, Khan Malik Dilshad, Zhang Chunyang, Zhao Chen, Gupta Ram K, Carleschi Emanuela, Doyle Bryan P, Revaprasadu Neerish
Department of Chemistry, University of Zululand Private Bag X1001 Kwa-Dlangezwa 3880 South Africa
Department of Chemistry, Pittsburg State University Pittsburg Kansas USA.
RSC Adv. 2018 Jul 2;8(42):24049-24058. doi: 10.1039/c8ra03522a. eCollection 2018 Jun 27.
Thiospinels show interesting catalytic and energy storage applications, however, the cationic disorder can have major influence on the energy generation and/or energy storage applications. In this study, the effect of stoichiometric variation of metals in a thiospinel Ni Co S, is examined on energy generation and storage properties. Nickel- or cobalt-rich Ni Co S nanosheets were prepared by the hot injection method using single molecular precursors. The nanosheets were characterized by p-XRD, TEM, HR-TEM, EDX and XPS techniques. Nickel-rich and cobalt-rich nanosheets were tested for oxygen and hydrogen evolution reactions and for supercapacitance performance. It was observed that the nickel-rich Ni Co S nanosheets have superior energy storage and energy generation properties.
硫族尖晶石展现出有趣的催化和能量存储应用，然而，阳离子无序对能量产生和/或能量存储应用可能有重大影响。在本研究中，研究了硫族尖晶石NiCoS中金属化学计量变化对能量产生和存储性能的影响。使用单分子前驱体通过热注射法制备了富镍或富钴的NiCoS纳米片。通过p-XRD、TEM、HR-TEM、EDX和XPS技术对纳米片进行了表征。对富镍和富钴纳米片进行了析氧反应、析氢反应和超级电容性能测试。观察到富镍的NiCoS纳米片具有优异的能量存储和能量产生性能。
