Scalable solid-state synthesis of MoS₂–NiS₂/graphene nanohybrids as bifunctional electrocatalysts for enhanced overall water splitting

Abstract

Facile and scalable preparation of nanostructured MoS2–NiS2/graphene nanohybrids as bifunctional electrocatalysts for efficient water splitting was demonstrated.

A facile chemical synthesis of nanoflake NiS2layers and their photocatalytic activity

“…In addition, the spectral deconvolution of the S 2p spectrum (Fig.3(b)) consists of two strong peaks at 162.91 (S 2p 3/2 ) and 164.38 eV (S 2p 1/2 ), implying the presence of unsaturated S atoms on the Ni-S and S-S bonds in NiS 2 . These results t well with NiS 2 single crystal XPS data 22,29,52.…”

Adjustable antiperovskite cobalt-based nitrides as efficient electrocatalysts for overall water splitting

“…[19][20][21][22] Hence, it is vital to search for low-cost and highly active electrocatalysts as substitute materials for these noble metal-based catalysts. For example, lots of transition metal oxides, 23,24 suldes, 25,26 nitrides, 27,28 phosphides 29,30 and alloys 31,32 have been developed as low-cost and durable electrocatalysts. Exploring more effective catalysts for overall water splitting is always a prosperous topic in electrochemical water splitting.…”

Highly efficient electrocatalysts for overall water splitting: mesoporous CoS/MoS2 with hetero-interfaces

“…The interfacial designed of binary composite is the key for improving the catalytic performance, including the kinds, number, and distribution of catalytic centers. [23][24][25][26] However, the accurate synthesizing the binary sulfides with numerous heterogeneous interfaces and exposed catalytic atoms is still challenging. Herein, a CoMo-bimetallic Hybrid zeolitic imidazolate framework (HZIF) is employed as precursor, which is orderly crystallized form Co 2+ , imidazole, and MoO 4 in a specific ratio of 4:6:1 through the im-M-O-T connections [27][28][29][30][31] , and in-situ converted into mesoporous CoS/MoS 2 through onestep facile sulfidation (Fig.…”