Yolk–shell-structured microspheres composed of N-doped-carbon-coated NiMoO₄ hollow nanospheres as superior performance anode materials for lithium-ion batteries

Abstract

Herein, for the first time, yolk–shell-structured microspheres consisting of N-doped-carbon-coated binary transition-metal oxide hollow nanospheres are designed as anode materials for lithium-ion batteries.

Co‐MOF‐Derived Hierarchical Mesoporous Yolk‐shell‐structured Nanoreactor for the Catalytic Reduction of Nitroarenes with Hydrazine Hydrate

“…Yolk‐shell‐structured materials demonstrate immense potential in drug delivery, energy storage and conversion, and catalysis due to their customizable physical and chemical properties. Compared to solid core–shell‐structured materials, yolk‐shell‐structured materials with a mesoporous wall provided an additional specific space between the shell and core, which is beneficial for catalysis .…”

Surface and Interface Modification of Electrode Materials for Lithium-Ion Batteries With Organic Liquid Electrolyte

“…And the activated porous carbon coated LFP (LFP/AC-P4) presents the increased Li-ions diffusion coefficient and low charge transfer resistance (Tian et al, 2020). Hence, it is disclosed that carbon coating is an important method to fabricate composites, which is able to be achieved by introducing a carbon source, such as graphene oxide (GO) (Huo et al, 2017), glucose (Zhang et al, 2017;Wang M. et al, 2019;He et al, 2020), sucrose (Chen et al, 2019;Park et al, 2019), pitch (Hsieh and Liu, 2020), cotton (Deng et al, 2019), ethylene glycol (Lin et al, 2008), and methyl orange (Yan et al, 2019), as raw materials. Besides, in the field of all-solid-state batteries, except the reconstruction of composite electrode materials, the controllable adjustment to composite solid electrolytes can effectively optimize the electrolyte interface.…”

“…Non-metal doping is more common than metal doping because the metals can easily react with the substance of electrode materials, produce lattice defects, and even break the performance. In non-metal doping combined with carbon coating, N doping (Duan et al, 2019;Jiang et al, 2019;Liu X. et al, 2019;Nanthagopal et al, 2019;Park et al, 2019;Sun et al, 2019;Wang Y. et al, 2019) is proven to result in a better effect, followed by P doping (Zhang et al, 2019). Na doping (Yan et al, 2019) as the metal doping is also widely applied.…”

“…Using carbon coating for surface treatment generates different structures among various composites, such as yolk-shellstructured microspheres (Park et al, 2019) (Figures 11A,B), core-shell structure (Duan et al, 2019;Zhang et al, 2019), sandwich structure (Figure 11C), double core-shell structure (Hsu et al, 2020), and other nanoscale porous structures (Deng et al, 2019;Zheng et al, 2019;Tian et al, 2020) (Figure 11D). These structures also lead to the change of surface morphology and property of the electrode, so the analysis of surface-interface is extremely necessary.…”

A uniform few-layered carbon coating derived from self-assembled carboxylate monolayers capable of promoting the rate properties and durability of commercial TiO2

“…3,4 Nevertheless, the low electronic conductivity and poor Li-ion conductivity are the main factors restricting its application in LIBs. 5,6 To date, extensive explorations have been carried out to solve these issues by ion-doping, 7 scaling down the particle size to nanometer for shortening Li-ion diffusion length, 8,9 appropriately controlling to form novel morphology, [10][11][12] and coating with conductive carbon materials, [13][14][15] among which the last one is commonly simple and efficient to improve the electrochemical performance of TiO 2 . However, the TiO 2 employed in the available investigations was mostly prepared by the precursors with high cost, regardless of the economy for applications.…”