2023
DOI: 10.1039/d2ta08571b
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Interface engineering of porous Co(OH)2/La(OH)3@Cu nanowire heterostructures for high efficiency hydrogen evolution and overall water splitting

Abstract: Transition metal hydroxide heterostructures have exhibited great potential to substitute precious metal catalysts for the electrocatalytic water splitting due to their tunable electronic structures and boosted catalytic performance. However, exploring...

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Cited by 31 publications
(7 citation statements)
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“…EIS data were fitted to the equivalent circuit of Rs(Rct, Cdl) (inset of Figure 7c, Table S2). Rs, CPE, and Rct represented the resistance of the electrolyte in series, the constant-phase element, as well as the charge transfer resistance, respectively [45]. Co@NCNTs/NG-1 displayed a lower Rs value (1.35 fact, the interaction between Co nanoparticles and NCNTs (or NG) played a crucial role in enhanced OER and/or HER electrocatalytic activities.…”
Section: Resultsmentioning
confidence: 99%
“…EIS data were fitted to the equivalent circuit of Rs(Rct, Cdl) (inset of Figure 7c, Table S2). Rs, CPE, and Rct represented the resistance of the electrolyte in series, the constant-phase element, as well as the charge transfer resistance, respectively [45]. Co@NCNTs/NG-1 displayed a lower Rs value (1.35 fact, the interaction between Co nanoparticles and NCNTs (or NG) played a crucial role in enhanced OER and/or HER electrocatalytic activities.…”
Section: Resultsmentioning
confidence: 99%
“…Therefore, the development of bifunctional alternatives with low cost, high activity, and long stability is urgently needed. In the past decade, extensive efforts have been dedicated to exploiting diverse lowcost, reliable, and high-efficient electrocatalysts for overall water splitting, including transition metal phosphides [8,9], chalcogenides [10,11], hydroxides [12,13], oxides [14,15], etc. Among various materials, perovskite oxide with the general formula of ABO 3 , where A represents a rare-earth or alkaline earth element and B indicates a transition metal ion, has emerged as a promising alternative to precious metal-based catalysts due to their compositional flexibility, antioxidative features, and structural tunability [16,17].…”
Section: Introductionmentioning
confidence: 99%
“…Electrochemical water splitting (EWS) is considered one of the feasible and eco-friendly ways to perform energy conversion. However, it suffers from multielectron transfer processes with large energy potential barriers in two half-reactions, i.e., hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), and therefore, an effective bifunctional electrocatalyst needs to be developed to speed up the pace of reaction and reduce energy consumption. Recently, Co–N–C catalysts exhibited efficient EWS performance and, thus, presented great potential to substitute costly Pt-based catalysts. Nevertheless, the serious Co agglomeration and loss of most N atoms due to high-temperature pyrolysis have limited further improvement of their electrocatalytic performance.…”
Section: Introductionmentioning
confidence: 99%