Superactive NiFe-LDH/graphene nanocomposites as competent catalysts for water splitting reactions

Abstract

Adaptable strategies for the design of superactive NiFe-LDH/graphene nanocomposites for high-performance catalytic activity towards electrocatalytic, photoelectrocatalytic, and photocatalytic water splitting have been reviewed.

Metal–Organic Framework‐Derived Hollow CoSx Nanoarray Coupled with NiFe Layered Double Hydroxides as Efficient Bifunctional Electrocatalyst for Overall Water Splitting

“…[ 14,15 ] Additionally, NiFe LDHs suffer from the inherent problems associated with LDH‐based catalysts, such as poor stability caused by self‐aggregation and a low electrochemically‐active surface area. [ 16,17 ] Therefore, the design of NiFe‐based LDHs, with improved HER catalytic properties and maintained OER performance, to serve as effective bifunctional catalysts for electrolysis of water is an important challenge. In this regard, the controlled integration of NiFe LDHs and HER‐active catalysts into a hetero‐nanostructure may be a reasonable strategy to fabricate highly efficient bifunctional catalysts for water splitting.…”

Defect-Free Single-Layer Graphene by 10 s Microwave Solid Exfoliation and Its Application for Catalytic Water Splitting

“…The high-quality graphene was further tested in a typical oxygen evolution reaction (OER) in water splitting, which is the rate-determining step. 44 Nickel iron layered double hydroxides (Ni–Fe LDH) and graphene–Ni–Fe LDH were deposited onto nickel foam substrates using a hydrothermal method ( SI for details). 45 Comparison of the OER properties of Ni–Fe LDH and graphene–Ni–Fe LDH reveals that the OER onset potential shifts cathodically by roughly 120 mV and the current density increases remarkably by more than an order of magnitude (at ∼0.7 V vs Ag/Ag/Cl) upon the addition of graphene as a highly conductive support, as shown in Figure 4 b.…”

Recent Progress in LDH@Graphene and Analogous Heterostructures for Highly Active and Stable Photocatalytic and Photoelectrochemical Water Splitting

“…Therefore, for the sustainable advancement of colonial human being and to make a greener earth for the betterment of the mankind and aquatic life, progress of pollution free and minimum‐energy consumption technologies for clean and renewable energy production as well as environmental recuperative is a vital assignment, which energize researchers to widen new‐fangled techniques to exploit solar energy for a comfort living [5–8] . On this aspect, water splitting process using heterogeneous semiconductor photocatalyst mimicking the natural photosynthesis received considerable attention as a green and sustainable technology owing to its pivotal prospective to solve energy crises and environmental issues [5–30] . Semiconductor photocatalysts for water splitting exhibits superior advantages as compared to conventional catalyst involving multiple steps, higher reaction parameter.…”