NixCo3−xO4 Nanowire Arrays for Electrocatalytic Oxygen Evolution

Li, Yanguang; Hasin, Panitat; Wu, Yiying

doi:10.1002/adma.200903896

Cited by 865 publications

(644 citation statements)

References 19 publications

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“…Apart from the noble metal‐based electrocatalysts, recently earth‐abundant electrocatalysts have attracted much attention in water oxidation reaction 130, 147. Ni‐doped Ni x Co 3–x O 4 nanowire arrays with large surface area and efficient charge transfer have been demonstrated to be superior over their nanoparticle film equivalents in electrocatalytic OER.…”

Section: Electrocatalytic Water Splittingmentioning

confidence: 99%

Recent Progress in Energy‐Driven Water Splitting

et al. 2017

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Hydrogen is readily obtained from renewable and non‐renewable resources via water splitting by using thermal, electrical, photonic and biochemical energy. The major hydrogen production is generated from thermal energy through steam reforming/gasification of fossil fuel. As the commonly used non‐renewable resources will be depleted in the long run, there is great demand to utilize renewable energy resources for hydrogen production. Most of the renewable resources may be used to produce electricity for driving water splitting while challenges remain to improve cost‐effectiveness. As the most abundant energy resource, the direct conversion of solar energy to hydrogen is considered the most sustainable energy production method without causing pollutions to the environment. In overall, this review briefly summarizes thermolytic, electrolytic, photolytic and biolytic water splitting. It highlights photonic and electrical driven water splitting together with photovoltaic‐integrated solar‐driven water electrolysis.

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Section: Electrocatalytic Water Splittingmentioning

confidence: 99%

Recent Progress in Energy‐Driven Water Splitting

et al. 2017

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“…One of the earliest examples of using 1D Co 3 O 4 nanowires for OER was reported in 2010,26 in which the synthesis of mesoporous Ni x Co 3–x O 4 nanowire arrays was first achieved on the surface of Ti foils via an ammonia evaporation induced growth. Spectroscopic characterizations indicated that the Ni element had an uneven distribution and was concentrated on the nanowire surface.…”

Section: Oermentioning

confidence: 99%

“…Among different types of morphologies and structures, the one‐dimensional (1D) nanoscale materials have been demonstrated as one unique target for serving excellent electrocatalyst candidates ( Figure 2 ). 26, 27, 28 First, these 1D materials have high surface areas, large roughness factors and high active‐site densities, which are beneficial for providing efficient catalytic activity for surface electrochemical reactions. Second, the 1D materials can provide channels and few crystal boundaries for fast charge transport pathways with reduced scattering.…”

Section: Introductionmentioning

confidence: 99%

One‐Dimensional Earth‐Abundant Nanomaterials for Water‐Splitting Electrocatalysts

2016

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Hydrogen fuel acquisition based on electrochemical or photoelectrochemical water splitting represents one of the most promising means for the fast increase of global energy need, capable of offering a clean and sustainable energy resource with zero carbon footprints in the environment. The key to the success of this goal is the realization of robust earth‐abundant materials and cost‐effective reaction processes that can catalyze both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), with high efficiency and stability. In the past decade, one‐dimensional (1D) nanomaterials and nanostructures have been substantially investigated for their potential in serving as these electrocatalysts for reducing overpotentials and increasing catalytic activity, due to their high electrochemically active surface area, fast charge transport, efficient mass transport of reactant species, and effective release of gas produced. In this review, we summarize the recent progress in developing new 1D nanomaterials as catalysts for HER, OER, as well as bifunctional electrocatalysts for both half reactions. Different categories of earth‐abundant materials including metal‐based and metal‐free catalysts are introduced, with their representative results presented. The challenges and perspectives in this field are also discussed.

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“…Besides enthusiastic efforts to search for new electrocatalysts to facilitate these processes, numerous studies are also devoted to making better use of the existing electrocatalysts for achieving optimal properties 2, 8, 9, 10, 11. Common strategies for enhancing the performances of electrocatalysts include either optimization of their chemical compositions or micro/nanostructures 2, 8, 9, 10, 11. Nevertheless, these methods require complicated procedures with long‐time operation and the catalytic performances remain unsatisfactory.…”

mentioning

confidence: 99%

“…Conventional catalyst electrodes are prepared by depositing active species, such as platinum, copper, titanium, nickel, etc., on the surface of 2D or 3D metallic supports 10, 11, 27. Because of the general incompatibility between electrocatalysts and these supports, the active species are vulnerable to peeling off during elongated catalysis duration (Figures S10 and S11, Supporting Information).…”

mentioning

confidence: 99%

Paper‐Based N‐Doped Carbon Films for Enhanced Oxygen Evolution Electrocatalysis

et al. 2015

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Cellulous‐fiber papers are used as 3D structural templates for the assembly of graphene and graphitic carbon nitrate (g‐C3N4) ultrathin nanosheets. The resultant materials, which possess highly active centers, rich porosity, and 3D conductive networks, can catalyze the oxygen evolution reaction with competitive activity and much better durability compared to the benchmark noble metal electrocatalysts (IrO2).

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Ni_xCo_3−xO₄ Nanowire Arrays for Electrocatalytic Oxygen Evolution

Cited by 865 publications

References 19 publications

Recent Progress in Energy‐Driven Water Splitting

Recent Progress in Energy‐Driven Water Splitting

One‐Dimensional Earth‐Abundant Nanomaterials for Water‐Splitting Electrocatalysts

Paper‐Based N‐Doped Carbon Films for Enhanced Oxygen Evolution Electrocatalysis

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