Sustainable Hydrogen Production by Glycerol and Monosaccharides Catalytic Acceptorless Dehydrogenation (AD) in Homogeneous Phase.

IF 7.5 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
ChemSusChem Pub Date : 2024-11-06 DOI:10.1002/cssc.202400639
Sylwia Kostera, Luca Gonsalvi
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引用次数: 0

Abstract

In the quest for sustainable hydrogen production, the use of biomass-derived feedstock is gaining importance. Acceptorless Dehydrogenation (AD) in the presence of efficient and selective catalysts has been explored worldwide as a suitable method to produce hydrogen from hydrogen-rich simple organic molecules. Among these, glycerol and sugars have the advantage of being cheap, abundant, and obtainable from fatty acid basic hydrolysis (biodiesel industry) and from biomass by biochemical and thermochemical processing, respectively. Although heterogeneous catalysts are more widely used for hydrogen production from biomass-based feedstock, the harsh reaction conditions applied limit applicability due to deactivation of active sites due to coking  of carbonaceous materials. Moreover, heterogeneous catalyst are more difficult to fine-tune than homogeneous counterparts, and the latter also allow for high process selectivities under milder conditions. The present Concept article summarizes the main features of the most active homogeneous catalysts reported for glycerol and monosaccharides AD. In order to directly compare  hydrogen production efficiencies, the choice of literature works was limited to reports where hydrogen was clearly quantified by yields and turnover numbers (TONs). The types of transition metals and ligands is discussed, together with a perspective view on future challenges of homogeneous AD reactions for practical applications.

在均相中利用甘油和单糖催化无受体脱氢 (AD) 实现可持续制氢。
在寻求可持续制氢的过程中,生物质原料的使用正变得越来越重要。在高效和选择性催化剂的作用下,无受体脱氢(AD)作为一种从富氢简单有机分子制氢的合适方法,已在全球范围内得到探索。其中,甘油和糖具有廉价、丰富的优势,可分别从脂肪酸基础水解(生物柴油工业)和生物质中通过生化和热化学处理获得。虽然异相催化剂更广泛地用于以生物质为原料制氢,但由于碳质材料结焦导致活性位点失活,因此苛刻的反应条件限制了其适用性。此外,与均相催化剂相比,异相催化剂更难进行微调,而均相催化剂还能在较温和的条件下实现较高的工艺选择性。本概念文章总结了已报道的用于甘油和单糖 AD 的最活跃均相催化剂的主要特点。为了直接比较制氢效率,对文献作品的选择仅限于通过产率和周转次数(TONs)对氢进行明确量化的报告。本文讨论了过渡金属和配体的类型,并展望了均相 AD 反应在实际应用中的未来挑战。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
ChemSusChem
ChemSusChem 化学-化学综合
CiteScore
15.80
自引率
4.80%
发文量
555
审稿时长
1.8 months
期刊介绍: ChemSusChem Impact Factor (2016): 7.226 Scope: Interdisciplinary journal Focuses on research at the interface of chemistry and sustainability Features the best research on sustainability and energy Areas Covered: Chemistry Materials Science Chemical Engineering Biotechnology
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