Kinetics of the oxygen evolution reaction on NiSn electrodes in alkaline solutions

Jović, B.M.; Lačnjevac, U.Č.; Jović, V.D.; Krstajić, N.V.

doi:10.1016/j.jelechem.2015.07.013

Cited by 54 publications

(31 citation statements)

References 49 publications

(71 reference statements)

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“…5c ). Likewise, the two different peaks at 1.37 and 1.27 V RHE correspond to the β - and γ - phase of NiOOH, respectively 40 – 43 . As shown in Fig.…”

Section: Discussionmentioning

confidence: 99%

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Anomalous in situ Activation of Carbon-Supported Ni2P Nanoparticles for Oxygen Evolving Electrocatalysis in Alkaline Media

Chung

Jang

et al. 2017

Sci Rep

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Electrochemical water splitting is one of the most promising systems by which to store energy produced from sustainable sources, such as solar and wind energy. Designing robust and stable electrocatalysts is urgently needed because of the relatively sluggish kinetics of the anodic reaction, i.e. the oxygen evolution reaction (OER). In this study, we investigate the anomalous in situ activation behaviour of carbon-supported Ni2P nanoparticles (Ni2P/C) during OER catalysis in alkaline media. The activated Ni2P/C shows an exceptionally high activity and stability under OER conditions in which the overpotential needed to achieve 10 mA cm−2 was reduced from approximately 350 mV to approximately 300 mV after 8,000 cyclic voltammetric scans. In situ and ex situ characterizations indicate that the activity enhancement of Ni2P catalysts is due to a favourable phase transformation of the Ni centre to β-NiOOH, including increases in the active area induced by structural deformation under the OER conditions. These findings provide new insights towards designing transition metal/phosphide-based materials for an efficient water splitting catalyst.

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“…5c ). Likewise, the two different peaks at 1.37 and 1.27 V RHE correspond to the β - and γ - phase of NiOOH, respectively 40 – 43 . As shown in Fig.…”

Section: Discussionmentioning

confidence: 99%

“…The changes of the NiOOH phase affect its catalytic activity at the potential range of the OER. NiOOH can exist as either the β - or γ -phase in an alkaline aqueous solution 40 – 43 . Subbaraman et al .…”

Section: Discussionmentioning

confidence: 99%

Anomalous in situ Activation of Carbon-Supported Ni2P Nanoparticles for Oxygen Evolving Electrocatalysis in Alkaline Media

Chung

Jang

et al. 2017

Sci Rep

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“…The OER is sensitive to the intrinsic structure of the catalysts [22]. It has been demonstrated that conductive transition metal oxides can promote the OER with high efficiency and current density in either highly acidic or highly alkaline solutions [23].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and nucleation study of β-PbO2–Co3O4 OER energy-saving electrode

Xu²,

Guo

et al. 2019

SN Appl. Sci.

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In this study, β-PbO 2-Co 3 O 4 composite coatings were synthesized on a substrate using the electrodeposition method in an electrolyte containing Pb 2+ and Co 3 O 4 particles. The preparation process study shows that the β-PbO 2 bath containing Co 3 O 4 particles becomes more stable for an ultrasonic dispersion time within 30 min, with the stability beginning to decrease after the ultrasonic time exceeds 30 min. Co 3 O 4 particles in the β-PbO 2 bath are positively charged, with anions being adsorbed onto the particles. The nucleation behavior study shows that the electric field force plays a dominant role in the adsorption process for the Co 3 O 4 particles. The nucleation and growth of β-PbO 2 on the Co 3 O 4 particles started for the particles closer to the substrate. In addition, the thickness of the β-PbO 2 layer on the Co 3 O 4 particles was inversely proportional to the distance between the Co 3 O 4 particles and the substrate. Compared to the pure PbO 2 electrode, the oxygen evolution overpotentials for the β-PbO 2-Co 3 O 4 electrode are decreased significantly, which demonstrates an energy-saving effect.

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“…However, the performance of such AEMs should be confirmed in a water electrolysis configuration since the cell performance is highly dependent on the cell operating conditions. OER [52][53][54][55][56][57][58][59][60][61][62] and hydrogen evolution reaction (HER) [56,57,[63][64][65][66][67][68][69][70][71][72][73][74] catalysts have also been developed actively for alkaline water electrolysis with the aim of achieving high catalytic activity and chemical stability under alkaline conditions. These developments have focused predominantly on controlling the crystalline structure and morphology of the catalysts and testing various transition metals or their oxides [75].…”

Section: Introductionmentioning

confidence: 99%

A Review on Membranes and Catalysts for Anion Exchange Membrane Water Electrolysis Single Cells

Cho

Lim

Lee

et al. 2017

J. Electrochem. Sci. Technol

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The research efforts directed at advancing water electrolysis technology continue to intensify together with the increasing interest in hydrogen as an alternative source of energy to fossil fuels. Among the various water electrolysis systems reported to date, systems employing a solid polymer electrolyte membrane are known to display both improved safety and efficiency as a result of enhanced separation of products: hydrogen and oxygen. Conducting water electrolysis in an alkaline medium lowers the system cost by allowing non-platinum group metals to be used as catalysts for the complex multi-electron transfer reactions involved in water electrolysis, namely the hydrogen and oxygen evolution reactions (HER and OER, respectively). We briefly review the anion exchange membranes (AEMs) and electrocatalysts developed and applied thus far in alkaline AEM water electrolysis (AEMWE) devices. Testing the developed components in AEMWE cells is a key step in maximizing the device performance since cell performance depends strongly on the structure of the electrodes containing the HER and OER catalysts and the polymer membrane under specific cell operating conditions. In this review, we discuss the properties of reported AEMs that have been used to fabricate membrane-electrode assemblies for AEMWE cells, including membranes based on polysulfone, poly(2,6-dimethyl-p-phylene) oxide, polybenzimidazole, and inorganic composite materials. The activities and stabilities of tertiary metal oxides, metal carbon composites, and ultra-low Pt-loading electrodes toward OER and HER in AEMWE cells are also described.

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Kinetics of the oxygen evolution reaction on NiSn electrodes in alkaline solutions

Cited by 54 publications

References 49 publications

Anomalous in situ Activation of Carbon-Supported Ni2P Nanoparticles for Oxygen Evolving Electrocatalysis in Alkaline Media

Anomalous in situ Activation of Carbon-Supported Ni2P Nanoparticles for Oxygen Evolving Electrocatalysis in Alkaline Media

Fabrication and nucleation study of β-PbO2–Co3O4 OER energy-saving electrode

A Review on Membranes and Catalysts for Anion Exchange Membrane Water Electrolysis Single Cells

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