Free-standing ternary NiWP film for efficient water oxidation reaction

Yang, Yunpeng; Zhou, Kuo; Ma, Lili; Liang, Yanqin; Yang, Xianjin; Cui, Zhenduo; Zhu, Shengli; Li, Zhaoyang

doi:10.1016/j.apsusc.2017.10.049

Cited by 12 publications

(5 citation statements)

References 35 publications

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“…Recently, a new strategy was presented for the growth of tungsten and phosphorous codecorated Ni‐based alloy (NiWP) on anodic aluminum oxide (AAO) sacrificial substrate for OER performance. [ 180 ] For the growth of NiWP, the AAO template was first sensitized by treatment with a small concentration of SnCl 2 and PdCl 2 solutions. Thereafter, the sensitized AAO sheets were treated with the salts of Ni, W, and P, and sodium citrate at 80 °C for 2.5 h, which was later treated with NaOH to remove the AAO.…”

Section: Fabrication Of Nanostructures On Binder‐free Electrodesmentioning

confidence: 99%

“…In recent years, efforts have been made for the utilization of Al foil as a substrate for the growth of electrocatalysts to enhance HER and OER performance. [179,180] For example, Liu et al [179] reported on the enhancement in the catalytic activity of 2D MoS 2 toward HER by making an exposed and activated basal plane of monolayer 2H MoS 2 via an ultrathin alumina mask (UTAM)-assisted ion beam etching (IBE). UTAM was obtained by two-step anodization of Al foils, which was later transferred to a substrate with as-grown monolayer MoS 2 (Figure 11).…”

Section: Aluminum Foil (Al Foil)mentioning

confidence: 99%

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Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

Chandrasekaran

Khandelwal

Fan

et al. 2022

Advanced Energy Materials

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Ni, Fe, and Cu foams to form robust binder-free electrodes for high-performance electrocatalytic reactions. [55][56][57][58][59] Interestingly, multidimensional electrocatalysts grown at the nanoscale on a range of current collectors, namely substrates and will benefit from a strong adhesion with the current collector to avoid catalyst delamination, limited active sites, and charge transfer blockage to enhance catalytic reactions (Figure 1b-d). [9,[60][61][62][63][64] Key Prospects, Insights, and the Dynamic Properties of Nano-and Microstructured Binder-Free Electrocatalysts and Their Direct Impact on Electrochemical ReactionsWater splitting has become one of the most important technologies to produce hydrogen (H 2 ) in high purity form. Water splitting includes two half-reactions, namely the cathodic HER and anodic OER. [8,65] Generally, the electrocatalytic performance and activity are highly sensitive to local reaction conditions and is largely valued by the energy required for adsorption/desorption of reaction intermediates and the rupture/creation of chemical bonds. Hence, the conventional powder form of precious metals such as Pt/C for the HER and RuO 2 or IrO 2 for the OER are considered ideal electrocatalysts. [66] In addition, several nonprecious 1D, 2D, and 3D nano-and microstructured powder catalysts such as MoS 2 , WS 2 , Ni 3 S 2 , NiCo 2 S 4 are also of interest for the HER and OER reactions. [54,[67][68][69][70][71][72][73][74] However, for commercial purposes and practical applica-

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Section: Fabrication Of Nanostructures On Binder‐free Electrodesmentioning

confidence: 99%

Section: Aluminum Foil (Al Foil)mentioning

confidence: 99%

Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

Chandrasekaran

Khandelwal

Fan

et al. 2022

Advanced Energy Materials

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“…Electrochemical water splitting from renewable energy (wind-or solar-derived electricity) is of particular interest because it is considered a clean and sustainable process [1,2]. The efficiency of electrochemical water splitting is dependent on two half reactions, in other words, the oxygen evolution reaction (OER) at the anode and the hydrogen evolution reaction (HER) at the cathode [3,4]. However, the kinetics of the OER in a four-electron and four-proton process are sluggish, and therefore the development of effective OER electrocatalysts is critical to increase the overall water splitting efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, an extensive variety of transition metals including Co, Ni, Fe, and their compounds have been explored for the OER catalysts [6,[10][11][12][13][14][15]. Among them, Ni-containing materials, such as nickel oxides, nickel hydroxides, and nickel-metal alloys have been given special attention because of their abundance and their good water oxidation potential [3,[11][12][13][14]16,17]. Furthermore, some reports have shown that coupling molybdenum carbide with Ni significantly improves the OER performance [13,18,19].…”

Section: Introductionmentioning

confidence: 99%

Ni-Based Composites from Chitosan Biopolymer a One-Step Synthesis for Oxygen Evolution Reaction

et al. 2019

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Cost-efficient and sustainable electrocatalysts for oxygen evolution reaction (OER) is highly desired in the search for clean and renewable energy sources. In this study, we develop a new one-step synthesis strategy of novel composites based on Ni and molybdenum carbide embedded in N- and P-dual doped carbon matrices using mainly chitosan biopolymer as the carbon and nitrogen source, and molybdophosphoric acid (HMoP) as the P and Mo precursor. Two composites have been investigated through annealing a mixture of Ni/chitosan and HMoP with two unlike carbon matrices, melamine and graphene oxide, at a high temperature. Both composites exhibit similar multi-active sites with high electrocatalytic activity for OER in an alkaline medium, which is comparable to the IrO2 catalyst. For this study, an accurate measurement of the onset potential for O2 evolution has been used by means of a rotating ring-disk electrode (RRDE). The use of this method allows confirming a better stability in the chitosan/graphene composite. This work serves as a promising approach for the conversion of feedstock and renewable chitosan into desired OER catalysts.

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“…There is no doubt that they are the shining star for water splitting at present and in the future. Other selfsupported materials such as free-standing films [47,48], 3D carbon-free materials supported on nickel foam [49][50][51][52][53][54], copper foam [55], Ti mesh [56,57], as well as stainless steel [58] , which can also be used as electrocatalysts for water splitting.…”

Section: Introductionmentioning

confidence: 99%

Three dimensional carbon substrate materials for electrolysis of water

et al. 2018

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Water splitting is an important approach for energy conversion to obtain hydrogen and oxygen. Apart from solar water splitting, electrochemical method plays a key role in the booming field, and it is urgent to develop novel and efficient catalysts to accelerate water splitting reaction. Recently, newly emerging self-supported materials, especially three dimensional (3D) carbon substrate electrochemical catalysts, have attracted great attention benefiting from their fantastic catalytic performances, such as large surface area, enhanced conductivity, tunable porosity, and so on. This review summarizes the outstanding materials used for hydrogen evolution reaction and oxygen evolution reaction. And catalysts that acted as both anode and cathode in two-electrode systems for overall water splitting are introduced systematically. The opportunities and challenges of 3D carbon substrate materials for electrochemical water splitting are proposed.

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Free-standing ternary NiWP film for efficient water oxidation reaction

Cited by 12 publications

References 35 publications

Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

Ni-Based Composites from Chitosan Biopolymer a One-Step Synthesis for Oxygen Evolution Reaction

Three dimensional carbon substrate materials for electrolysis of water

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