Co-doped Ni₃S₂@CNT arrays anchored on graphite foam with a hierarchical conductive network for high-performance supercapacitors and hydrogen evolution electrodes

Abstract

Co-doped Ni3S2 nanostructures are coated on the surface of the 3D conductive CNTs array/graphite foam to form a hierarchical electrode.

Solid‐State Hybrid Supercapacitor Assembled from a Heterostructured Co−Ni Battery‐like Cathode and Supercapacitor‐Type Highly Disordered Carbon Nanosheets

“…[38,40] The satellite peak at 168.8 eV can be attributed to the high oxidation states of sulfur species. [41] These analyses further confirm the prepared material mainly composed of nickel/cobaltic sulfides and metal double hydroxides, which is consistent with the XRD results.…”

Experimental and Theoretical Investigation of the Effect of Oxygen Vacancies on the Electronic Structure and Pseudocapacitance of MnO2

“…Recently, numerous researchers have focused on MnO 2 ‐based composites or the doping of MnO 2 with metals (e.g., Al, Zn, Ce, Co and Fe) to improve their intrinsic conductivity . For example, Cakici et al.…”

“…Recently,n umerous researchers have focused on MnO 2based composites or the doping of MnO 2 with metals (e.g.,A l, Zn, Ce, Co and Fe) to improve their intrinsic conductivity. [23][24][25][26][27][28][29] For example, Cakici et al prepared ac arbon fiberf abric/corallike MnO 2 nanostructure by using ag reen hydrothermal method,w hich displayed ac apacitance of 467 Fg À1 at 1Ag À1 . [30] Zhou and co-workers reported Al-doped a-MnO 2 , which showed enhancede lectrochemical performance owing Defect engineering is an effective way to modulate the intrinsic physicochemical properties of materials.…”

One‐Step Synthesis of NiFe Layered Double Hydroxide Nanosheet Array/N‐Doped Graphite Foam Electrodes for Oxygen Evolution Reactions

“…[7] Consequently, it is urgent to develop non-precious metals or earth-abundant elements based electrocatalysts requiring relatively low overpotentials to initiate OER. [8][9][10][11][12] As reported, low-cost transition metals and their derivatives, especially Ni based oxides, [13,14] hydroxides, [15,16] sulfides, [17][18][19] and phosphides [20,21] have been indicated as favorable candidates for water splitting because of their earth abundance and high catalytic performance characteristics. Among these candidates, NiFe layered double hydroxide (LDH) catalysts have been attracting more and more research attention in electrocatalysis because of their special nanostructure, tunable composition, and large specific surface area.…”