A multidimensional rational design of nickel-iron sulfide and carbon nanotubes on diatomite via synergistic modulation strategy for supercapacitors.

Based on their characteristics, transition metal layered double hydroxides have been of great scientific interest for their use in supercapacitors. Up until now, severe aggregation and low intrinsic conductivity have been the major hurdles for their application. In this work, nickel-iron sulfide nanosheets (NiFeSx) and carbon nanotubes (CNTs) were synthesized on diatomite using chemical vapor deposition and a two-step hydrothermal method to overcome these challenges.

P-doped cobalt carbonate hydroxide@NiMoO double-shelled hierarchical nanoarrays anchored on nickel foam as a bi-functional electrode for energy storage and conversion.

The rational structure design and controllable surface modification of electrode materials plays a decisive role in constructing high performance energy storage and conversion devices. Herein, the P-doped cobalt carbonate hydroxide@NiMoO (P-CoCH@NiMoO) nanowires@nanosheets double-shell hierarchical structure is successfully fabricated on nickel foam. The unique nanowire@nanosheet structure with gradient porous distribution and hydrophilic nature can facilitate both the charge and electron transfer based on the synergetic effects with conductive NiMoO array.

Morphology-controlled synthesis of CoMoO nanoarchitectures anchored on carbon cloth for high-efficiency oxygen oxidation reaction.

Novel CoMoO nanoarrays with different morphologies are anchored on a carbon cloth a simple hydrothermal method by adjusting the Co/Mo atom ratio. The growth and tight immobilization of the CoMoO nanocomposite on the carbon cloth can facilitate the electrolyte infiltration and electrons transfer rate at the contact interface. Therefore, the free-standing electrode of CoMoO/carbon cloth with interconnected nanosheets shows superior electrocatalytic activity, and the overpotential of 286 mV is obtained at 15 mA cm in alkaline solution.