| 张忠昊,颜珂岚,周以萌,丁杰,刘洪菲,王培丞,王曦彬,陈亿鑫,钟秦.化学通报,2025,88(4):417-423,449. |
| 氧化铟基催化剂用于高选择性二氧化碳催化加氢制甲醇 |
| Indium oxide catalyst for highly selective carbon dioxide catalytic hydrogenation to methanol |
| 投稿时间：2024-11-27 修订日期：2025-01-06 |
| DOI： |
| 中文关键词: 钯 氧化铟 甲醇 催化剂 加氢 二氧化碳 |
| 英文关键词:palladium Indium oxide Methanol Catalyst Hydrogenation Carbon dioxide |
| 基金项目:南京理工大学本科生科研训练“百千万”计划项目((八)大型科研训练项目课题)和国家自然科学基金项目(22378203,22478193)资助 |
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| 中文摘要: |
| 甲醇作为一种绿色能源,有着极其广阔的应用前景,研究二氧化碳催化加氢制甲醇具有重要意义。而目前二氧化碳热催化加氢制甲醇仍需要250~350℃、3~6MPa的条件,能耗高、经济竞争力弱。本文旨在使用高效的甲醇催化剂解决二氧化碳热催化加氢制甲醇低产率的问题。氧化铟由于其对二氧化碳具有良好的吸附性能以及好的甲醇选择性,是一种良好的二氧化碳催化加氢制甲醇的催化剂,然而氧化铟的单程转化率低使甲醇产率低,引入金属位点是目前解决该问题的措施之一。因此,本文运用水热法并以碳纳米纤维为模板剂先负载贵金属Pd纳米颗粒,再进一步负载氧化铟用于二氧化碳催化加氢制甲醇并在固定床上对其进行活性测试。通过改变催化剂中氧化铟的含量,探究氧化铟含量对催化反应的影响,最终发现0.01Pd/CFS-In2O3(1:1)表现出良好的甲醇产率,在310℃时,甲醇的最佳时空产率达到0.6542g/(gcat.h)。 |
| 英文摘要: |
| As a kind of green energy, methanol has a very broad application prospect, so it is of great significance to study carbon dioxide catalytic hydrogenation to produce methanol. At present, carbon dioxide thermal catalytic hydrogenation to methanol still needs harsh conditions of 250~350°C and 3~6MPa, which has high energy consumption and weak economic competitiveness. The aim of this paper is to solve the problem of low yield of methanol from carbon dioxide thermal catalytic hydrogenation by using an efficient methanol catalyst. Indium oxide is a good catalyst for carbon dioxide catalytic hydrogenation of methanol due to its good adsorption performance to carbon dioxide and good methanol selectivity. However, the low one-way conversion rate of indium oxide makes the methanol yield low. Therefore, in this paper, carbon nanofibers were used as template agent to first load metal Pd nanoparticles, and then indium oxide was further loaded for catalytic hydrogenation of carbon dioxide to methanol and the activity was evaluated on a fixed bed. By changing the content of indium oxide in the catalyst, the effect of content of indium oxide was explored on the catalytic reaction, in which 0.01Pd/CFS-In2O3(1:1) showed a good methanol yield, and the optimal time-space yield of methanol reached 0.6752g/(gcat.h) at 340°C. |
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