An inclusive review on the synthesis of molybdenum carbide and its hybrids as catalyst for electrochemical water splitting

Rabi, Osama; Pervaiz, Erum; Zahra, Rubab; Ali, Majid; Niazi, Muhammad Bilal Khan

doi:10.1016/j.mcat.2020.111116

Cited by 31 publications

(12 citation statements)

References 123 publications

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“…Recently, first-row transition-metal-based electrocatalysts have been largely explored in the HER and OER. To date, many catalysts have been developed for the HER, such as carbides, , chalcogenides, , borides, sulfides, , phosphonate/phosphides, , and so on. In addition, transition-metal-based catalysts have been reported for the OER process, including metal oxides, , metal (oxy)hydroxides, , metal phosphate/phosphonate/phosphide, − and so on.…”

Section: Introductionmentioning

confidence: 99%

Novel Microporous Iron-Embedded Cobalt Phosphonates Feasible for Electrochemical Overall Water Splitting

Bhanja

Mohanty

Chongdar

et al. 2022

ACS Appl. Energy Mater.

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Developing a low-cost effective, readily available, highly efficient electrocatalyst is essential to produce clean and sustainable energy. We report the synthesis of microporous iron-anchored cobalt phosphonate materials, i.e., FeCoPIm-6, FeCoPIm-12, FeCoPIm-24, and FeCoPIm-48, using iminodi(methylphosphonic acid) as a ligand, by varying the reaction time under hydrothermal condition and post-grafting synthetic pathway. The FeCoPIm-12 catalyst exhibits excellent electrocatalytic activity for the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), acquiring low overpotentials of 117 and 249 mV vs. reversible hydrogen electrode (RHE), respectively, at the current density of 10 mA cm–2 with outstanding long-term durability up to 100 h in a 1.0 M KOH electrolyte solution. Also, the bifunctionalized electrocatalyst FeCoPIm-12 requires a cell voltage of 1.53 V at 10 mA cm–2 for overall water splitting in an alkaline medium and displays long-term stability. The superior electrochemical performance of the FeCoPIm-12 catalyst over the as-synthesized catalyst is due to its higher surface area with microporous channel throughout the catalyst and the synergistic effect of the highly active metal oxyhydroxide (FeOOH and CoOOH) components on the pore wall.

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Section: Introductionmentioning

confidence: 99%

Novel Microporous Iron-Embedded Cobalt Phosphonates Feasible for Electrochemical Overall Water Splitting

Bhanja

Mohanty

Chongdar

et al. 2022

ACS Appl. Energy Mater.

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“…Carbon dioxide is the primary contributor to the greenhouse gas effect and global warming. The hydrogen economy is a key prospective solution to the environmental issues caused by fossil fuel consumption 1‐3 . Hydrogen, as a renewable energy carrier can be produced by electrolysis of water under mild reaction conditions.…”

Section: Introductionmentioning

confidence: 99%

“…The hydrogen economy is a key prospective solution to the environmental issues caused by fossil fuel consumption. [1][2][3] Hydrogen, as a renewable energy carrier can be produced by electrolysis of water under mild reaction conditions. The process provides an exciting design for obtaining access to sustainable renewable energy.…”

Section: Introductionmentioning

confidence: 99%

An inclusive perspective on the recent development of tungsten‐based catalysts for overall water‐splitting : A review

Abdullah

Ali

Pervaiz

et al. 2022

Intl J of Energy Research

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Summary The problems of energy shortages, environmental pollution and the ever‐increasing global population are creating serious concerns for mankind. For a sustainable future, it is essential to explore clean and renewable alternate energy sources. The green energy consumption model aims towards a future with a competent and sustainable hydrogen economy to fulfill the global energy demands. Water‐splitting is a promising method for clean hydrogen production. A highly active noble metal‐free catalyst is the main pre‐requisite, to make the process energy‐efficient and economical. An optimum catalyst lowers the energy required for the disassociation of water by driving down the overpotential of the process. Tungsten‐based materials are an considered effective catalyst for water‐splitting due to natural availability, environmental friendliness, high photostability, high electron mobility, large hole diffusion length and high catalytic activities. In recent years, a diverse range of tungsten‐based materials has been developed as photo/electro catalysts for water‐splitting. This review aims to present a comprehensive understanding and timely reference for the progress of tungsten‐based catalysts in this field. This study begins with the fundamental principle of water splitting and the properties of tungsten and its hybrids then moves on to different techniques for producing binary/ternary nanocomposites for overall water splitting. A comprehensive overview of the recent developments in tungsten‐based photo/electro catalysts for overall water splitting is then presented with the techniques to enhance the catalyst activity, such as morphological control, surface modification, heteroatom doping, and heterojunction construction. Finally, recommendations for the future are proposed.

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“…Transition metal carbides (TMCs), particularly molybdenum carbide, have emerged as a promising inexpensive alternative to noble metals for specific types of catalysis including hydroprocessing 1 and electrocatalytic water splitting. 2 The former catalytic reactions are of great essence because of the increasing interest in conversion of low-quality materials such as biomass, solid wastes and heavy hydrocarbons into value-added chemicals. 1 The latter provides an attractive pathway for hydrogen production that is emerging rapidly worldwide.…”

Section: Introductionmentioning

confidence: 99%

Evidence of water dissociation and hydrogenation on molybdenum carbide nanocatalyst for hydroprocessing reactions

Khoshooei

Vitale

Ortega

et al. 2022

Catal. Sci. Technol.

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An inclusive review on the synthesis of molybdenum carbide and its hybrids as catalyst for electrochemical water splitting

Cited by 31 publications

References 123 publications

Novel Microporous Iron-Embedded Cobalt Phosphonates Feasible for Electrochemical Overall Water Splitting

Novel Microporous Iron-Embedded Cobalt Phosphonates Feasible for Electrochemical Overall Water Splitting

An inclusive perspective on the recent development of tungsten‐based catalysts for overall water‐splitting : A review

Evidence of water dissociation and hydrogenation on molybdenum carbide nanocatalyst for hydroprocessing reactions

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