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Deep eutectic solvents:Green multi-task agents for sustainable super green hydrogen technologies

Journal of Energy Chemistry 2024年第5期92卷 357-382页

作者： Raiyan Al-Farsi Maan Hayyan Renewable Energy Engineering Program Faculty of Engineering and TechnologyMuscat UniversityMuscat 130Oman Chemical Engineering Program Faculty of Engineering and TechnologyMuscat UniversityMuscat 130Oman

While reliance on renewable energy resources has become a reality, there is still a need to deploy greener and more sustainable methods in order to achieve sustainable development goals. Indeed, green hydrogen is currently believed to be a reliable solution for global warming and the pollution challenges arising from fossil fuels, making it the resilient fuel of the future. However, the sustainability of green hydrogen technologies is yet to be achieved. In this context, generation of green hydrogen with the aid of deep eutectic solvents(DESs) as green mixtures has been demonstrated as a promising research area. This systematic review article covers green hydrogen generation through water splitting and biomass fermentation when DESs are utilized within the generation process. It also discusses the incorporation of DESs in fuel cell technologies. DESs can play a variety of roles such as solvent, electrolyte, or precursor;colloidal suspension and reaction medium;galvanic replacement, shape-controlling, decoration, or extractive agent;finally oxidant. These roles are relevant to several methods of green hydrogen generation, including electrocatalysis, photocatalysis, and fermentation. As such, it is of utmost importance to screen potential DES formulations and determine how they can function in and contribute throughout the green hydrogen mobility stages. The realization of super green hydrogen generation stands out as a pivotal milestone in our journey towards achieving a more sustainable form of development;DESs have great potential in making this milestone achievable. Overall, incorporating DESs in hydrogen generation constitutes a promising research area and offers potential scalability for green hydrogen production, storage,transport, and utilization.

关键词： watersplitting Biohydrogen Super green hydrogen Electrocatalysis Photocatalysis Fuel cell Power-to-X

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Bimetallic Ni-Mo nitride@C_(3)N_(4) for highly active and stable water catalysis

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Frontiers of Materials Science 2022年第3期16卷 181-191页

作者： Xinping LI Min ZHOU Zhuoxun YIN Xinzhi MA Yang ZHOU College of Chemistry and Chemical Engineering Qiqihar UniversityQiqihar 161006China School of Physics and Electronic Engineering Harbin Normal UniversityHarbin 150025China College of Science Qiqihar UniversityQiqihar 161006China

Non-noble metal electrocatalysts for water cracking have excellent pro-spects for development of sustainable and clean energy.Highly efficient electrocatalysts for the oxygen evolution reaction(OER)are very important for various energy storage and conversion systems such as water splitting devices and metal-air batteries.This study prepared a NiMo4@C_(3)N_(4) catalyst for OER and hydrogen evolution reaction(HER)by simple methods.The catalyst exhibited an excellent OER activity based on the response at a suitable temperature.To drive a current density of 10 mA-cm^(-2) for OER and HER,the overpotentials required for NiMo4@C_(3)N_(4)-800(prepared at 800℃)were 259 and 118 mV,respectively.A two-electrode system using NiMo4@C_(3)N_(4)-800 needed a very low cell potential of 1.572 V to reach a current density of 10 mA-cm^(-2).In addition,this catalyst showed excellent durability after long-term tests.It was seen to have good catalytic activity and broad application prospects.

关键词： stability oxygen reduction reaction watersplitting electrocatalyst

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