Developments in Titanium-Based Alkali and Alkaline Earth Metal Oxide Catalysts for Sustainable Biodiesel Production: A Review

IF 7 2区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Chemical record Pub Date : 2023-10-10 DOI:10.1002/tcr.202300277

Yatish Kalanakoppal Venkatesh, Mithun Prakash Ravikumar, Shwetharani Ramu, Chandan Hunsur Ravikumar, Sakar Mohan, R. Geetha Balakrishna

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Abstract

Biodiesel represents a biodegradable, environmentally friendly, and renewable alternative to fossil fuels. Despite more than three decades of research, significant obstacles still hinder the widespread production of biodiesel. This current review elucidates both the potential and the existing challenges associated with homogeneous and heterogeneous catalysts in catalyzing biodiesel production, with a particular focus on alkali analogues, alkaline earth metal oxides, and titania-based catalysts. In particular, a comprehensive analysis is presented concerning alkali and alkaline earth-based titania (TiO₂) catalysts. Among these, the alkaline earth metal oxides, including lithium, calcium, and strontium when combined with titanium-based catalysts, exhibit superior catalytic activity compared to other metal oxides, owing to their heightened basicity. Consequently, this review offers a thorough and up-to-date insight into the potential of titania-based heterogeneous catalysts for advancing biodiesel production.

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用于可持续生物柴油生产的钛基碱和碱土金属氧化物催化剂的发展：综述。

生物柴油是一种可生物降解、环保和可再生的化石燃料替代品。尽管进行了30多年的研究，但重大障碍仍然阻碍了生物柴油的广泛生产。这篇综述阐述了均相和非均相催化剂在催化生物柴油生产中的潜力和现有挑战，特别关注碱类似物、碱土金属氧化物和二氧化钛基催化剂。特别是，对碱金属和碱土金属基二氧化钛（TiO2）催化剂进行了综合分析。其中，碱土金属氧化物，包括锂、钙和锶，当与钛基催化剂结合时，由于其碱性提高，与其他金属氧化物相比，表现出优异的催化活性。因此，这篇综述对二氧化钛基多相催化剂在推进生物柴油生产方面的潜力提供了全面和最新的见解。

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

Chemical record 化学-化学综合

CiteScore

11.00

自引率

3.00%

发文量

188

审稿时长

>12 weeks

期刊介绍： The Chemical Record (TCR) is a "highlights" journal publishing timely and critical overviews of new developments at the cutting edge of chemistry of interest to a wide audience of chemists (2013 journal impact factor: 5.577). The scope of published reviews includes all areas related to physical chemistry, analytical chemistry, inorganic chemistry, organic chemistry, polymer chemistry, materials chemistry, bioorganic chemistry, biochemistry, biotechnology and medicinal chemistry as well as interdisciplinary fields. TCR provides carefully selected highlight papers by leading researchers that introduce the author''s own experimental and theoretical results in a framework designed to establish perspectives with earlier and contemporary work and provide a critical review of the present state of the subject. The articles are intended to present concise evaluations of current trends in chemistry research to help chemists gain useful insights into fields outside their specialization and provide experts with summaries of recent key developments.

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