Abstract

The preparation, characterisation and application of two catalysts active in selective hydrogenation (Pt/TiO₂) and esterification (mesoporous SiO₂ material modified with tethered sulfonic acid groups) reactions is described. The catalysts are characterised using a range of spectroscopic, microscopic and adsorption techniques. Pt/TiO₂ catalysts promote valeric acid (a cellulose derived platform molecule) hydrogenation to pentanol, while –SO₃H modified mesoporous SiO₂ catalysts convert valeric acid/pentanol mixtures to pentyl valerate (a 10-C molecule which can be used as a diesel fuel substitute). Admixtures of the two catalysts catalyse the tandem conversion of valeric acid/hydrogen mixtures to form pentyl valerate in a single reaction. A rationale for the observed reactivity, selectivity and carbon balance is proposed.

Graphic Abstract

中文翻译：

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通过1-Pot，2-催化剂串联反应合成可持续的纤维素衍生生物燃料

摘要

描述了两种在选择性加氢（Pt / TiO ₂）和酯化反应（经束缚的磺酸基改性的SiO ₂材料）中具有活性的催化剂的制备，表征和应用。使用一系列光谱学，显微学和吸附技术对催化剂进行表征。Pt / TiO ₂催化剂促进戊酸（一种纤维素衍生的平台分子）氢化为戊醇，而–SO ₃ H改性的介孔SiO ₂催化剂将戊酸/戊醇混合物转化为戊酸戊酯（10-C分子，可用作柴油替代品）。两种催化剂的混合物在单个反应中催化戊酸/氢混合物的串联转化以形成戊酸戊酯。提出了观察到的反应性，选择性和碳平衡的基本原理。

图形摘要