Insights into Cu–Amorphous Silica–Alumina as a Bifunctional Catalyst for the Steam Reforming of Dimethyl Ether
The steam reforming of dimethyl ether (SRD) has been proved to be one of the most promising routes for on-site H<sub>2</sub> production. However, the two-step consecutive nature of the SRD reaction makes the design of an efficient bifunctional catalyst a challenge. Herein, a series of Cu...
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MDPI AG
2022-11-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/12/11/1355 |
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| author | Zhi-Cui Shao Lei Wang Min-Li Zhu Chang Liu Zhong-Wen Liu |
| author_facet | Zhi-Cui Shao Lei Wang Min-Li Zhu Chang Liu Zhong-Wen Liu |
| author_sort | Zhi-Cui Shao |
| collection | DOAJ |
| description | The steam reforming of dimethyl ether (SRD) has been proved to be one of the most promising routes for on-site H<sub>2</sub> production. However, the two-step consecutive nature of the SRD reaction makes the design of an efficient bifunctional catalyst a challenge. Herein, a series of Cu incorporated into amorphous silica–alumina (Cu–ASA) as integrated bifunctional catalysts for SRD were synthesized by the single-step complex decomposition method, and ammonium carbonate was confirmed to be an effective complex agent for dispersing Cu in ASA. The results indicated that the initial conversion of dimethyl ether and a H<sub>2</sub> yield higher than 90% were achieved at 300 °C over the optimal catalyst. More importantly, a slightly decreased SRD performance with increasing time-on-stream was mainly caused by Cu sintering, and the synergetic effect between ASA and Cu played a crucial role in determining the activity, hydrogen yield, and stability of the integrated Cu–ASA bifunctional catalyst for SRD. These findings are helpful to develop a high-performance integrated bifunctional catalyst for the SRD reaction. |
| first_indexed | 2024-03-09T19:12:42Z |
| format | Article |
| id | doaj.art-e36ab0975fe448dc853e065ae6a9790d |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T19:12:42Z |
| publishDate | 2022-11-01 |
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| series | Catalysts |
| spelling | doaj.art-e36ab0975fe448dc853e065ae6a9790d2023-11-24T04:06:05ZengMDPI AGCatalysts2073-43442022-11-011211135510.3390/catal12111355Insights into Cu–Amorphous Silica–Alumina as a Bifunctional Catalyst for the Steam Reforming of Dimethyl EtherZhi-Cui Shao0Lei Wang1Min-Li Zhu2Chang Liu3Zhong-Wen Liu4Key Laboratory of Syngas Conversion of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710119, ChinaKey Laboratory of Syngas Conversion of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710119, ChinaKey Laboratory of Syngas Conversion of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710119, ChinaKey Laboratory of Syngas Conversion of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710119, ChinaKey Laboratory of Syngas Conversion of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710119, ChinaThe steam reforming of dimethyl ether (SRD) has been proved to be one of the most promising routes for on-site H<sub>2</sub> production. However, the two-step consecutive nature of the SRD reaction makes the design of an efficient bifunctional catalyst a challenge. Herein, a series of Cu incorporated into amorphous silica–alumina (Cu–ASA) as integrated bifunctional catalysts for SRD were synthesized by the single-step complex decomposition method, and ammonium carbonate was confirmed to be an effective complex agent for dispersing Cu in ASA. The results indicated that the initial conversion of dimethyl ether and a H<sub>2</sub> yield higher than 90% were achieved at 300 °C over the optimal catalyst. More importantly, a slightly decreased SRD performance with increasing time-on-stream was mainly caused by Cu sintering, and the synergetic effect between ASA and Cu played a crucial role in determining the activity, hydrogen yield, and stability of the integrated Cu–ASA bifunctional catalyst for SRD. These findings are helpful to develop a high-performance integrated bifunctional catalyst for the SRD reaction.https://www.mdpi.com/2073-4344/12/11/1355amorphous silica–aluminacopperbifunctional catalystsynergetic effectsteam reformingdimethyl ether |
| spellingShingle | Zhi-Cui Shao Lei Wang Min-Li Zhu Chang Liu Zhong-Wen Liu Insights into Cu–Amorphous Silica–Alumina as a Bifunctional Catalyst for the Steam Reforming of Dimethyl Ether Catalysts amorphous silica–alumina copper bifunctional catalyst synergetic effect steam reforming dimethyl ether |
| title | Insights into Cu–Amorphous Silica–Alumina as a Bifunctional Catalyst for the Steam Reforming of Dimethyl Ether |
| title_full | Insights into Cu–Amorphous Silica–Alumina as a Bifunctional Catalyst for the Steam Reforming of Dimethyl Ether |
| title_fullStr | Insights into Cu–Amorphous Silica–Alumina as a Bifunctional Catalyst for the Steam Reforming of Dimethyl Ether |
| title_full_unstemmed | Insights into Cu–Amorphous Silica–Alumina as a Bifunctional Catalyst for the Steam Reforming of Dimethyl Ether |
| title_short | Insights into Cu–Amorphous Silica–Alumina as a Bifunctional Catalyst for the Steam Reforming of Dimethyl Ether |
| title_sort | insights into cu amorphous silica alumina as a bifunctional catalyst for the steam reforming of dimethyl ether |
| topic | amorphous silica–alumina copper bifunctional catalyst synergetic effect steam reforming dimethyl ether |
| url | https://www.mdpi.com/2073-4344/12/11/1355 |
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