Electrolytic properties and element migration in Ni–TiB2/Al2O3 composite cathode

Liang, Yudong; Wang, Lijun; Chai, Dan; Bao, Shiyi; Niu, Tingting; Wang, Junwei; Liu, Ying

doi:10.1007/s12598-020-01377-6

Rare Met.

2020

DOI: 10.1007/s12598-020-01377-6

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Electrolytic properties and element migration in Ni–TiB2/Al2O3 composite cathode

Yudong Liang

Lijun Wang

Dan Chai³

et al.

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Cited by 3 publications

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“…Liang et al synthesised Ni-TiB 2 /Al 2 O 3 by subjecting a mixture of TiB 2 (85 wt%), Ni (5 wt%), and alumina sol (10 wt%) to sintering at 1500 °C for 3 h 126. Electrolysis was performed using this Ni-TiB 2 /Al 2 O 3 cathode and graphite anode (VEC setup) in NaF-KF-AlF 3 −5 wt%Al 2 O 3 (CR = 1.42, KR not specified) at temperature (800 °C-820 °C) for 24 h. The cell voltage was stable throughout the electrolysis process, and the current efficiency of the process was 92%.…”

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confidence: 99%

Review—Primary Production of Aluminium with Oxygen Evolving Anodes

Padamata

Singh

Haarberg

et al. 2023

J. Electrochem. Soc.

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Due to environmental and economic concerns, carbon-free aluminium production has been an ultimate goal for aluminium industries. For the past few decades, a considerable amount of research has been conducted to find an inert anode material that could replace the consumable carbon anodes for aluminium electrolysis. Anodic materials such as metals, ceramics, and cermets have been studied extensively. All these anode materials have their advantages and disadvantages. However, metal alloys have proven effective because of their resistance to high-temperature corrosion and their ability to produce a protective oxide layer. For a successful adaptation of metallic anodes into the aluminium electrolysis cell, an electrolyte with a low operating temperature and high alumina solubility with good electrical conductivity is required. A wettable cathode with a shorter anode-to-cathode distance is preferred to compete with the Hall-Héroult process in terms of energy requirements. This review discusses the research progress on inert anodes, wettable cathodes, and electrolytes.

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confidence: 99%

Review—Primary Production of Aluminium with Oxygen Evolving Anodes

Padamata

Singh

Haarberg

et al. 2023

J. Electrochem. Soc.

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Dissolution characteristics of black aluminum dross in Na3AlF6-AlF3-Al2O3 molten salt system

Zuo

Liu

et al. 2023

Rare Met.

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Simple and Fast Synthesis of Ni/NiO-loaded Carbon Nanotubes for the Alkaline Hydrogen Evolution Reaction

Feng

Xin

et al. 2021

Chemistry Letters

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At present, there are still challenges in the efficient synthesis of catalysts for water splitting hydrogen evolution. We propose herein a high-efficiency strategy to simply and quickly synthesize composites of Ni/NiO and carbon nanotubes. The Ni/NiO-loaded carbon nanotubes are prepared by oxidative combustion of ethanol over a metal-based catalyst and exhibit excellent catalytic performance for alkaline water splitting hydrogen evolution with 129 mV overpotential to offer a current density of 10 mA cm−2. Meanwhile, the Ni/NiO-loaded carbon nanotubes also exhibit good stability. The Ni/NiO-loaded carbon nanotubes obtained by the simple and fast preparation thus could be a promising electrocatalyst for hydrogen evolution rection.

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Electrolytic properties and element migration in Ni–TiB2/Al2O3 composite cathode

Cited by 3 publications

References 10 publications

Review—Primary Production of Aluminium with Oxygen Evolving Anodes

Review—Primary Production of Aluminium with Oxygen Evolving Anodes

Dissolution characteristics of black aluminum dross in Na3AlF6-AlF3-Al2O3 molten salt system

Simple and Fast Synthesis of Ni/NiO-loaded Carbon Nanotubes for the Alkaline Hydrogen Evolution Reaction

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