用CuCrO颗粒改性的电纺CeO纳米纤维在甲醇蒸汽重整制氢中的应用

Modification of Electrospun CeO Nanofibers with CuCrO Particles Applied to Hydrogen Harvest from Steam Reforming of Methanol.

作者信息

Hsu Kai-Chun, Yu Chung-Lun, Lei Heng-Jyun, Sakthinathan Subramanian, Chen Po-Chou, Lin Chia-Cheng, Chiu Te-Wei, Nagaraj Karuppiah, Fan Liangdong, Lee Yi-Hsuan

机构信息

Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei 106, Taiwan.

Institute of Materials Science and Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan.

出版信息

Materials (Basel). 2022 Dec 8;15(24):8770. doi: 10.3390/ma15248770.

DOI:10.3390/ma15248770

PMID:36556574

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9785846/

Abstract

Hydrogen is the alternative renewable energy source for addressing the energy crisis, global warming, and climate change. Hydrogen is mostly obtained in the industrial process by steam reforming of natural gas. In the present work, CuCrO particles were attached to the surfaces of electrospun CeO nanofibers to form CeO-CuCrO nanofibers. However, the CuCrO particles did not readily adhere to the surfaces of the CeO nanofibers, so a trace amount of SiO was added to the surfaces to make them hydrophilic. After the SiO modification, the CeO nanofibers were immersed in Cu-Cr-O precursor and annealed in a vacuum atmosphere to form CeO-CuCrO nanofibers. The CuCrO, CeO, and CeO-CuCrO nanofibers were examined by X-ray diffraction analysis, transmission electron microscopy, field emission scanning electron microscopy, scanning transmission electron microscope, thermogravimetric analysis, and Brunauer-Emmett-Teller studies (BET). The BET surface area of the CeO-CuCrO nanofibers was 15.06 m/g. The CeO-CuCrO nanofibers exhibited hydrogen generation rates of up to 1335.16 mL min g-cat at 773 K. Furthermore, the CeO-CuCrO nanofibers produced more hydrogen at lower temperatures. The hydrogen generation performance of these CeO-CuCrO nanofibers could be of great importance in industry and have an economic impact.

摘要

氢是解决能源危机、全球变暖和气候变化问题的替代可再生能源。氢主要在工业过程中通过天然气蒸汽重整获得。在本工作中，将CuCrO颗粒附着到电纺CeO纳米纤维表面以形成CeO-CuCrO纳米纤维。然而，CuCrO颗粒不易附着在CeO纳米纤维表面，因此向其表面添加了痕量的SiO使其具有亲水性。经过SiO改性后，将CeO纳米纤维浸入Cu-Cr-O前驱体中并在真空气氛中退火以形成CeO-CuCrO纳米纤维。通过X射线衍射分析、透射电子显微镜、场发射扫描电子显微镜、扫描透射电子显微镜、热重分析和布鲁诺尔-埃米特-特勒研究（BET）对CuCrO、CeO和CeO-CuCrO纳米纤维进行了检测。CeO-CuCrO纳米纤维的BET表面积为15.06 m²/g。CeO-CuCrO纳米纤维在773 K时的产氢速率高达1335.16 mL min⁻¹ g⁻¹ cat⁻¹。此外，CeO-CuCrO纳米纤维在较低温度下产生更多氢气。这些CeO-CuCrO纳米纤维的产氢性能在工业上可能具有重要意义并产生经济影响。