Bimetallic Ru-Sn as Effective Catalysts for the Selective Hydrogenation of Biogenic Platform Chemicals at Room Temperature

Bulletin of Chemical Reaction Engineering & Catalysis Pub Date : 2023-11-27 DOI:10.9767/bcrec.20067

Atina Sabila Azzahra, H. P. Dewi, Edi Mikrianto, K. C. Sembiring, G. Sunnardianto, I. F. Nata, Rodiansono Rodiansono, J. Jayanudin

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Abstract

Supported bimetallic ruthenium-tin (denoted as Ru-Sn(x); x = molar ratio of Ru/Sn) catalysts were examined for room temperature (RT) hydrogenation of biogenic platform chemicals of levulinic acid (LA) to g-valerolactone (GVL). Six types of metal oxide support c.a. Nb2O5, TiO2, ZnO, ZrO2, g-Al2O3, active charcoal (AC), were employed as the support for Ru-Sn(x). Ru-Sn(3.0)/Nb2O5 (Ru/Sn = 3.0) that reduced at 500 oC demonstrated the highest yield of GVL (98%) at 30 oC, 30 bar H2 for 3 h. The increase in Sn loading amount (Ru/Sn = 1.5) resulted in decreasing of LA conversion (83%) under the same reaction conditions. Among the studied supported Ru-Sn catalysts, Nb2O5 and ZnO supports exhibited better catalytic performances than that other for RT hydrogenation of LA and various biogenic platform chemicals. The Ru-Sn(3.0)/Nb2O5 catalyst was characterized by means of various adsorption and spectroscopic techniques. The Ru-Sn(3.0)/Nb2O5 catalyst was found to be reusable without any significant loss of its activity. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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双金属 Ru-Sn 作为室温下选择性加氢生物平台化学品的有效催化剂

研究了支撑型双金属钌锡（表示为 Ru-Sn(x)；x = Ru/Sn 的摩尔比）催化剂在室温（RT）下将生物平台化学品左旋乙酸（LA）氢化为 g-valerolactone （GVL）的过程。Ru-Sn(x) 采用了 Nb2O5、TiO2、ZnO、ZrO2、g-Al2O3 和活性炭 (AC) 等六种金属氧化物作为载体。Ru-Sn(3.0)/Nb2O5 (Ru/Sn = 3.0)在 500 oC 下还原，在 30 oC、30 bar H2 条件下反应 3 小时，GVL 产率最高（98%）。在所研究的支撑型 Ru-Sn 催化剂中，Nb2O5 和 ZnO 支撑物在 LA 和各种生物源平台化学品的 RT 加氢反应中表现出比其他催化剂更好的催化性能。通过各种吸附和光谱技术对 Ru-Sn(3.0)/Nb2O5 催化剂进行了表征。研究发现，Ru-Sn(3.0)/Nb2O5 催化剂可重复使用，其活性不会明显降低。作者版权所有 © 2023 年，由 BCREC 集团出版。本文采用 CC BY-SA 许可协议 (https://creativecommons.org/licenses/by-sa/4.0) 公开发表。

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Bulletin of Chemical Reaction Engineering & Catalysis

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