A comprehensive review of ionic liquids based electrolytes for efficient hydrogen production

IF 5.3 2区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Molecular Liquids Pub Date : 2024-11-22 DOI:10.1016/j.molliq.2024.126537

Muhammad Usman , Mohd Dzul Hakim Wirzal , Shafiq M. Hizam , Junaid Afridi , Syed Turab Haider Zaidi , Fareeha Marriam

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Abstract

Hydrogen production is a promising, cleaner, and environmentally friendly approach to sustainable development. This review analyzes the utilization of ionic liquids (ILs) as innovative electrolytes in electrocatalysis, highlighting their contribution to the advancement of hydrogen production techniques. Ionic liquids have several unique characteristics that set them apart from aqueous and organic electrolytes. Previously, there existed a gap in critically analyzing the role of ILs as electrolytes specifically for hydrogen evolution reaction (HER). The role of IL in electrocatalytic performance, kinetics, electrode stability, and interface tunning has been analyzed. This review particularly explores case studies that utilize ionic liquid as electrolyte and electrolyte additives for HER in detail. A thorough comparison between IL and conventional electrolytes has also been conducted to ascertain their efficacy. Furthermore, the efficiency of ILs in boosting hydrogen production through hydrolysis has also been analyzed. Additionally, this review addresses the practical challenges related to the use of ILs, such as their high viscosity, production costs, and environmental concerns. The review identifies critical research needs and potential advancements that could mitigate existing limitations and maximize the potential of ILs in sustainable hydrogen production.

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来源期刊

Journal of Molecular Liquids 化学-物理：原子、分子和化学物理

CiteScore

10.30

自引率

16.70%

发文量

2597

审稿时长

78 days

期刊介绍： The journal includes papers in the following areas: – Simple organic liquids and mixtures – Ionic liquids – Surfactant solutions (including micelles and vesicles) and liquid interfaces – Colloidal solutions and nanoparticles – Thermotropic and lyotropic liquid crystals – Ferrofluids – Water, aqueous solutions and other hydrogen-bonded liquids – Lubricants, polymer solutions and melts – Molten metals and salts – Phase transitions and critical phenomena in liquids and confined fluids – Self assembly in complex liquids.– Biomolecules in solution The emphasis is on the molecular (or microscopic) understanding of particular liquids or liquid systems, especially concerning structure, dynamics and intermolecular forces. The experimental techniques used may include: – Conventional spectroscopy (mid-IR and far-IR, Raman, NMR, etc.) – Non-linear optics and time resolved spectroscopy (psec, fsec, asec, ISRS, etc.) – Light scattering (Rayleigh, Brillouin, PCS, etc.) – Dielectric relaxation – X-ray and neutron scattering and diffraction. Experimental studies, computer simulations (MD or MC) and analytical theory will be considered for publication; papers just reporting experimental results that do not contribute to the understanding of the fundamentals of molecular and ionic liquids will not be accepted. Only papers of a non-routine nature and advancing the field will be considered for publication.