Room-Temperature CO2 Hydrogenation to Methanol over Air-Stable hcp-PdMo Intermetallic Catalyst,Journal of the American Chemical Society

当前位置： X-MOL 学术 › J. Am. Chem. Soc. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Room-Temperature CO2 Hydrogenation to Methanol over Air-Stable hcp-PdMo Intermetallic Catalyst
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2023-03-30 , DOI: 10.1021/jacs.2c13801
Hironobu Sugiyama ₁ , Masayoshi Miyazaki ₁ , Masato Sasase ₁ , Masaaki Kitano _{1,

2} , Hideo Hosono _{1,

3}

Affiliation

CO₂ hydrogenation to methanol is one of the most promising routes to CO₂ utilization. However, difficulty in CO₂ activation at low temperature, catalyst stability, catalyst preparation, and product separation are obstacles to the realization of a practical hydrogenation process under mild conditions. Here, we report a PdMo intermetallic catalyst for low-temperature CO₂ hydrogenation. This catalyst can be synthesized by the facile ammonolysis of an oxide precursor and exhibits excellent stability in air and the reaction atmosphere and significantly enhances the catalytic activity for CO₂ hydrogenation to methanol and CO compared with a Pd catalyst. A turnover frequency of 0.15 h^–1 was achieved for methanol synthesis at 0.9 MPa and 25 °C, which is comparable to or higher than that of the state-of-the-art heterogeneous catalysts under higher-pressure conditions (4–5 MPa).

中文翻译：

在空气稳定的 hcp-PdMo 金属间催化剂上室温 CO2 加氢制甲醇

CO ₂加氢制甲醇是最有前途的CO ₂利用途径之一。然而，CO ₂的低温活化、催化剂稳定性、催化剂制备和产物分离等困难是实现温和条件下加氢工艺实用化的障碍。在这里，我们报告了一种用于低温 CO ₂加氢的 PdMo 金属间化合物催化剂。_{该催化剂可通过氧化物前体的简单氨解合成，在空气和反应气氛中表现出优异的稳定性，与 Pd 催化剂相比，显着提高了 CO 2}加氢生成甲醇和 CO 的催化活性。周转频率为 0.15 小时^–1在 0.9 MPa 和 25 °C 下实现了甲醇合成，这与高压条件（4-5 MPa）下最先进的非均相催化剂相当或更高。

更新日期：2023-03-30

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南