Functionalization of graphene-based materials using chemical moieties not only modify the electronic structure of the underlying graphene but also enable in limited enhancement of targeted properties. Surface modification of graphene-based materials using other nanostructures enhances the effective properties by minimally modifying the properties of pristine graphene backbone. In this pursuit, we have synthesized bio-inspired hierarchical nanostructures based on Ni–Co layered double hydroxide on reduced graphene oxide core–shells using template based wet chemical approach. The material synthesized have been characterized structurally and electrochemically. The fabricated dendritic morphology of the composite delivers a high specific capacity of 1056 Cg⁻¹. A cost effective solid state hybrid supercapacitor device was also fabricated using the synthesized electrode material which shows excellent performance with high energy density and fast charging capability.

使用化学部分对基于石墨烯的材料进行功能化不仅可以改变底层石墨烯的电子结构，而且还可以有限地增强目标特性。使用其他纳米结构对石墨烯基材料进行表面改性，通过最小程度地改变原始石墨烯骨架的特性来增强有效特性。在这一追求中，我们使用基于模板的湿化学方法在还原的氧化石墨烯核壳上合成了基于 Ni-Co 层状双氢氧化物的仿生分层纳米结构。合成的材料已在结构和电化学方面进行了表征。复合材料的制造树枝状形态提供了 1056 Cg ^-1的高比容量. 还使用合成的电极材料制造了具有成本效益的固态混合超级电容器装置，该材料表现出优异的性能，具有高能量密度和快速充电能力。