Ultrathin cobalt phosphide nanosheets as efficient bifunctional catalysts for a water electrolysis cell and the origin for cell performance degradation

Chang, Jinfa; Liang, Liang; Li, Chenyang; Wang, Minglei; Ge, Junjie; Liu, Changpeng; Wang, Xing

doi:10.1039/c5gc02899j

Cited by 108 publications

(86 citation statements)

References 83 publications

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“…The increase in cell voltage at the beginning of electrolysis was also observed previously in other metal phosphide systems for overall water splitting. 24,26,30,49 …”

Section: Resultsmentioning

confidence: 99%

Vapor–solid synthesis of monolithic single-crystalline CoP nanowire electrodes for efficient and robust water electrolysis

et al. 2017

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“…The increase in cell voltage at the beginning of electrolysis was also observed previously in other metal phosphide systems for overall water splitting. 24,26,30,49 …”

Section: Resultsmentioning

confidence: 99%

Vapor–solid synthesis of monolithic single-crystalline CoP nanowire electrodes for efficient and robust water electrolysis

et al. 2017

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“…Recently, Lewis et al 139 H2SO4. Liu et al 143 used Co3O4 sheet as precursor and prepared ultrathin CoP nanosheets for electrochemical water splitting successfully (Fig. In their other work 141 , as shown in Fig.…”

Section: Transition Metal Phosphidesmentioning

confidence: 99%

Nanostructured catalysts for electrochemical water splitting: current state and prospects

et al. 2016

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Hydrogen is an ideal candidate for the replacement of fossil fuels in the future due to its zero emission of the carbonaceous species during its utilization. Water electrolysis is a dependable link of primary renewable energy and stable hydrogen energy. In this work, the fundamentals of water electrolysis, current popular electrocatalysts developed for cathodic hydrogen evolution reaction (HER) and anodic oxygen evoltion reacion (OER) in liquid electrolyte water electrolysis are reviewed. The main HER catalysts include noble metals, non-noble metal and composites, noble metal-free alloy, metal carbides, chalcogenides, phosphides and metal-free materials while the OER catalysts are focused on efficient Co-based, Ni-based materials and layered double hydroxides (LDH) materials. The strategies to improve catalytic activity, long-term durability and endurance to electrochemical erosions are introduced. The main challenges and future prospects for the further development of electrodes for water electrolysis are discussed. It is expected to give a guidance to the development of novel nanostructured electrocatalysts with low-cost for the electrochemical water splitting.

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“…To find an alternative process for the conversion of solar energy, the hydrogen fuel cell coupled with hydrogen production from solar-driven water www.advancedsciencenews.com splitting is an ideal strategy. In an acidic electrolyte, partial and full NiCoP/rGO j) CP 1 m KOH 270 [190] CoO x @NC NF k) 1 m KOH 260 [191] CoP NS/carbon GC 1 m KOH 277 [192] Co 3 O 4 NTs l) NF 1 m KOH 353 [193] Co NP GC 0.1 m KOH 390 [168] Co-Pi NA n) Ti mesh 0.1 m PBS 450 [194] CoP-NRA o) NF 1 m KOH 290 [195] CoFeNiO x NF 1 m KOH 240 [196] rGO@CoNiO x GC 0.1 m KOH 320 [197] Mn-Co oxyphosphide particles GC 1 m KOH 320 [198] Titanium carbide-carbon nitride Free-standing film 0.1 m KOH 420 [199] FeNC sheets/NiO GC 0.1 m KOH 390 [154] Ni-Co NWs p) Carbon fiber 1 m KOH 302 [157] Ultrathin Figure 4. Hydrogen is produced by the solar-driven processes described in the above section of this review.…”

Section: The Hydrogen Oxidation and Oxygen Reduction Reactions In Fuementioning

confidence: 99%

Solar‐to‐Hydrogen Energy Conversion Based on Water Splitting

Zhang

Cao

2017

Advanced Energy Materials

508

250

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Artificial photosynthesis provides a blueprint to harvest solar energy to sustain the future energy demands. Solar‐driven water splitting, converting solar energy into hydrogen energy, is the prototype of photosynthesis. Various systems have been designed and evaluated to understand the reaction pathways and/or to meet the requirements of potential applications. In solar‐to‐hydrogen conversion, electrocatalytic hydrogen and oxygen evolution reactions are key research areas that are meaningful both theoretically and practically. To utilize hydrogen energy, fuel cell technology has been extensively investigated because of its high efficiency in releasing chemical energy. In this review, general concepts of the photosynthesis in green plants are discussed, different strategies for the light‐driven water splitting proposed in laboratories are introduced, the progress of electrocatalytic hydrogen and oxygen evolution reactions are reviewed, and finally, the reactions in hydrogen fuel cells are briefly discussed. Overall, the mass and energy circulation in the solar‐hydrogen‐electricity circle are delineated. The authors conclude that attention from scientists and engineers of relevant research areas is still highly needed to eliminate the wide disparity between the aspirations and realities of artificial photosynthesis.

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Ultrathin cobalt phosphide nanosheets as efficient bifunctional catalysts for a water electrolysis cell and the origin for cell performance degradation

Abstract: Ultrathin CoP nanosheets are prepared by a green and facile approach and found to be an effective and robust bifunctional catalyst material for OER and HER in a basic solution.

Cited by 108 publications

References 83 publications

Vapor–solid synthesis of monolithic single-crystalline CoP nanowire electrodes for efficient and robust water electrolysis

Vapor–solid synthesis of monolithic single-crystalline CoP nanowire electrodes for efficient and robust water electrolysis

Nanostructured catalysts for electrochemical water splitting: current state and prospects

Solar‐to‐Hydrogen Energy Conversion Based on Water Splitting

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