Ouyang, B., Wang, Y., Wang, X., Zhang, Z., Liu, F., Fang, Z., Kan, E., & Rawat, R. S. (2022). Rational design of hierarchically structured dual-encapsulated CoMoO4 nanosheets via in situ plasma tuning for efficient Li+ storage. MRS Bulletin. https://doi.org/
Engineering electrode with desirable nanostructures is regarded as an urgent challenge to achieve enhanced electrical conductivity, stable structural integrity and advanced performance for Li+ storage. Various approaches with processing complexity and multiple reactions have suffered serious limitation in industrialization. Here, we developed a facile carbon plasma (C-plasma) strategy combined with controlled reaction zone temperature to in-situ achieve hierarchical metallic nanoparticles and graphene encapsulated CoMoO4 nanosheets (hCCO). The nano-frameworks of Co3Mo and graphene shell are simultaneously modulated via simply controlling reaction zone temperature. The incorporation of nano-alloy component effectively enhances the conductivities of nanosheet and uniformly-coated graphene releases the structural stress caused by conversion reaction of metal oxides, maximizing the capacity utilization. The synergetic combination of these advantages enables the synthesized hCCO to have excellent electrochemical performances. Our C-plasma exhibits a great potential in tuning nano-architectures with high-performance Li+ storage behavior.
This research / project is supported by the National Institute of Education (NIE) - Research Support for Senior Academic Administrators (RS-SAA)
Grant Reference no. : RS 6/18 RSR
This study at Nanjing University of Science and Technology is supported by the NSFC (51522206, 11774173, 11574151, 51790492), by the Fundamental Research Funds for the Central Universities No.30915011203, No.30918011334), China, and was also supported by IAEA, Vienna, Austria, Research Contract 22770 (CRP Code F13019)