Valorizing biomass waste glycerol to fuel additive at room temperature using a nanostructured WO3/Nb2O5 catalyst

IF 3.4 3区化学 Q2 CHEMISTRY, PHYSICAL

Catalysis Communications Pub Date : 2024-01-01 DOI:10.1016/j.catcom.2023.106827

Suresh Babu Putla , P. Subha , Bhattu Swapna , Nittan Singh , Putla Sudarsanam

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Abstract

We developed a nanostructured catalyst consisting of WO₃ nanoparticles and Nb₂O₅ nanorods for efficient glycerol acetalization to produce a fuel additive (solketal) at room temperature. Particularly, the WO₃/Nb₂O₅ nanocatalyst calcined at 400 °C (WO₃/Nb₂O₅–4) contains W⁵⁺ species and optimum acid sites, which enhanced glycerol conversion (92.3%) with 95.6% of solketal selectivity at room temperature. The structure stability of the WO₃/Nb₂O₅–4 catalyst during the reaction is showcased by hot-filtration study and XRD/XPS characterization. However, the inadequate regeneration of the Brønsted acid sites led to a gradual decrease in the recyclable activity of the WO₃/Nb₂O₅–4 catalyst.

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使用纳米结构 WO3/Nb2O5 催化剂在室温下将生物质废甘油转化为燃料添加剂

我们开发了一种由 WO3 纳米颗粒和 Nb2O5 纳米棒组成的纳米结构催化剂，用于在室温下高效进行甘油缩醛化反应，以生产一种燃料添加剂（solketal）。特别是在 400 °C 煅烧的 WO3/Nb2O5 纳米催化剂（WO3/Nb2O5-4）含有 W5+ 物种和最佳酸位点，在室温下提高了甘油转化率（92.3%）和 95.6% 的缩酮选择性。热过滤研究和 XRD 表征显示了 WO3/Nb2O5-4 催化剂在反应过程中的结构稳定性。然而，由于布氏酸位点再生不足，导致 WO3/Nb2O5-4 催化剂的可循环活性逐渐降低。

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来源期刊

Catalysis Communications 化学-物理化学

CiteScore

6.20

自引率

2.70%

发文量

183

审稿时长

46 days

期刊介绍： Catalysis Communications aims to provide rapid publication of significant, novel, and timely research results homogeneous, heterogeneous, and enzymatic catalysis.