Nunthakitgoson Watinee, Rodaum Chadatip, Pornsetmetakul Peerapol, Wattanakit Chularat, Wattana Piyarat, Thivasasith Anawat
Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand.
PTT Exploration and Production Public Company Limited, Bangkok, 10900, Thailand.
Chempluschem. 2024 Feb;89(2):e202300345. doi: 10.1002/cplu.202300345. Epub 2023 Nov 13.
The conversion of CO into valuable substances is a topic of great interest in current research. Carbon nanotubes (CNT) have emerged as highly promising materials for CO conversion. In this study, we successfully developed a catalyst by loading active transition metals (Fe or Ni) onto hierarchical zeolite for CNT synthesis. Our catalyst demonstrated excellent performance under synthetic conditions. The most favorable CNT was obtained using the 25 wt.% FeHieFAU catalyst, which exhibited a diameter size of 23.1 nm, a CNT yield of 15.4 %, and an I /I ratio of 0.56, indicating high quality. Additionally, we investigated the beneficial effects of the synthesized CNT by testing their current response. Notably, the current response of the synthesized CNT surpassed that of commercial CNT when using a 0.5 M H SO supporting electrolyte and cyclic voltammetry (V vs. Ag/AgCl). These findings highlight the significant contributions of the small diameter and superior quality of our synthesized pure CNT, which offer potential improvements in current response compared to commercial CNT. This research opens new avenues for utilizing CNT in CO conversion and electrochemical applications.
将一氧化碳转化为有价值的物质是当前研究中备受关注的一个课题。碳纳米管（CNT）已成为用于一氧化碳转化的极具前景的材料。在本研究中，我们通过将活性过渡金属（铁或镍）负载到用于碳纳米管合成的分级沸石上，成功开发了一种催化剂。我们的催化剂在合成条件下表现出优异的性能。使用25 wt.%的FeHieFAU催化剂获得了最理想的碳纳米管，其直径为23.1 nm，碳纳米管产率为15.4 %，I /I比为0.56，表明质量很高。此外，我们通过测试合成碳纳米管的电流响应来研究其有益效果。值得注意的是，当使用0.5 M H SO支持电解质和循环伏安法（相对于Ag/AgCl为V）时，合成碳纳米管的电流响应超过了商业碳纳米管。这些发现突出了我们合成的纯碳纳米管小直径和高质量的重大贡献，与商业碳纳米管相比，其在电流响应方面具有潜在的改进。这项研究为碳纳米管在一氧化碳转化和电化学应用中的利用开辟了新途径。
