Devi Nishu, Ghosh Sarit K, Perla Venkata K, Mallick Kaushik
Department of Chemical Sciences, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa.
ACS Omega. 2020 Jul 20;5(30):18693-18699. doi: 10.1021/acsomega.0c01576. eCollection 2020 Aug 4.
An organic-inorganic complexation method was applied for the synthesis of bismuth-manganese bimetallic oxide (BMO) nanoparticles where highly dispersed oxide particles were stabilized in an organic matrix (hexamethylenediamine). The as-synthesized hybrid material was subjected to microscopic, optical, and structural studies to gain comprehensive insights into the system. In the X-ray diffraction pattern, the majority of the diffracted peaks are matched to the orthorhombic phase of the BiMnO structure. To extract the electrochemical property, the hybrid system was applied as an anode material and investigated for supercapacitive performance under alkaline conditions. The specific capacitance obtained was 612 F·g at the current density of 1 A·g, and under the same current density, the energy density and power density achieved were 137.78 W·h·kg and 0.90 kW·kg, respectively.
采用有机-无机络合方法合成了铋-锰双金属氧化物（BMO）纳米颗粒，其中高度分散的氧化物颗粒稳定在有机基质（六亚甲基二胺）中。对合成的杂化材料进行了微观、光学和结构研究，以全面了解该体系。在X射线衍射图谱中，大部分衍射峰与BiMnO结构的正交相匹配。为了提取电化学性能，将该杂化体系用作阳极材料，并研究了其在碱性条件下的超级电容性能。在1 A·g的电流密度下获得的比电容为612 F·g，在相同电流密度下，实现的能量密度和功率密度分别为137.78 W·h·kg和0.90 kW·kg。
