Ni–Fe-based silicate-intercalated hydrotalcite: A potential catalyst for hexanol conversion

IF 5.5 3区工程技术 Q1 ENGINEERING, CHEMICAL Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2024-09-27 DOI:10.1016/j.jtice.2024.105775

P. Aswin , P.P. Neethu , Hsiu-Ling Hsu , L. Selva Roselin , S. Balamurugan , Rosilda Selvin , A. Sakthivel

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Abstract

Background

The de-oxygenation of biomass-derived platform molecules is a necessary process to produce biofuel. Renewable resources, viz., bio-alcohol, can convert alcohol into ethers, aldehydes, and alkenes, thereby increasing the value of the biomass components. In this regard, mixed metal oxides derived from hydrotalcite materials have multi-functional (acid-base-redox) properties and are promising for such organic transformations.

Methods

Ni–Fe and silicate-intercalated Ni–Fe hydrotalcite (HT)-based catalysts were prepared using a simple co-precipitation method. The materials were thoroughly characterized and investigated for hexanol conversion in vapor phase conditions.

Findings

A layered HT structure was evident from the powder X-ray diffraction (XRD) reflections. TEM and XPS analysis confirmed that the introduction of silicate anions and subsequent loading of ruthenium on HT facilitate the uniform dispersion of Ru on the HT surface. Using the silicate intercalated NiFe-HT (NF5SiRu-2C) catalyst with 2% ruthenium, a 63% hexanol conversion was observed and its catalytic activity remained the same after 24 h.

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镍-铁基硅酸盐叠层氢铝酸盐：转化己醇的潜在催化剂

背景生物质衍生平台分子的脱氧是生产生物燃料的必要过程。可再生资源（即生物醇）可将醇转化为醚、醛和烯，从而提高生物质成分的价值。方法采用简单的共沉淀法制备了基于 Ni-Fe 和硅酸盐夹杂 Ni-Fe 水滑石 (HT) 的催化剂。研究结果从粉末 X 射线衍射 (XRD) 反射中可以明显看出层状 HT 结构。TEM 和 XPS 分析证实，硅酸盐阴离子的引入以及随后钌在 HT 上的负载促进了 Ru 在 HT 表面的均匀分散。使用含有 2% 钌的硅酸盐插层 NiFe-HT（NF5SiRu-2C）催化剂，观察到 63% 的己醇转化率，并且在 24 小时后其催化活性保持不变。

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来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.