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使用甘氨酸硝酸盐法合成的新型CuFeO-ZnFeO多孔纳米复合催化剂对甲醇蒸汽重整制氢的催化性能增强

Enhanced Catalytic Performance for H Harvesting from Steam Reforming of Methanol Using Glycine Nitrate Process Synthesized Novel CuFeO-ZnFeO Porous Nanocomposite Catalyst.

作者信息

Yu Chung-Lun, Sakthinathan Subramanian, Chen Ching-Lung, Kameoka Satoshi, Vittayakorn Naratip, Jia Hongbing, Chiu Te-Wei

机构信息

Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 10608, Taiwan.

Institute of Materials Science and Engineering, National Taipei University of Technology, Taipei 10608, Taiwan.

出版信息

Langmuir. 2025 Jun 17;41(23):14837-14852. doi: 10.1021/acs.langmuir.5c00895. Epub 2025 Jun 4.

Abstract

Nowadays, depleting petrochemical resources and global fossil fuel pollution are urgent issues. Hydrogen (H) has emerged as a promising alternative energy source to combat climate change, the energy crisis, and environmental concerns. However, in the hydrogen energy sector, the storage and transportation of H remain challenging. The industrial H production path involves the use of steam reforming of methanol, which could effectively avoid the danger of directly using H. Methanol steam reforming (SRM) offers a safe and practical route for H production, leveraging methanol-favorable properties. In this work, a CuFeO-ZnFeO nanocomposite with enhanced surface area was synthesized via the glycine-nitrate process (GNP) and employed as a catalyst for SRM. Structural and morphological analyses were conducted using X-ray diffraction studies, field emission scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and BET. The as-combusted nanocomposite exhibited a specific surface area increase from 1.90 to 6.32 m/g. The best performance achieved was an H production rate of 6984 ± 35 mL STP min g-cat (or) 312 ± 2 mmol STP ming-cat with a flow rate of 30 sccm at 500 °C, without activation treatment. Based on the establishment, highlight the potential of CuFeO-ZnFeO nanocomposite as a cost-effective catalyst for on-demand hydrogen generation in fuel cell applications in the future.

摘要

如今,石化资源枯竭和全球化石燃料污染是亟待解决的问题。氢气(H)已成为一种有前景的替代能源,以应对气候变化、能源危机和环境问题。然而,在氢能领域,氢气的储存和运输仍然具有挑战性。工业制氢途径涉及甲醇蒸汽重整,这可以有效避免直接使用氢气的危险。甲醇蒸汽重整(SRM)利用甲醇的有利特性,为制氢提供了一条安全实用的途径。在这项工作中,通过甘氨酸硝酸盐法(GNP)合成了具有增大表面积的CuFeO-ZnFeO纳米复合材料,并将其用作SRM的催化剂。使用X射线衍射研究、场发射扫描电子显微镜、透射电子显微镜、拉曼光谱和BET进行了结构和形态分析。燃烧后的纳米复合材料的比表面积从1.90增加到6.32 m/g。在500°C、流速为30 sccm且未经活化处理的情况下,实现的最佳性能是氢气产率为6984±35 mL STP min g-cat(或)312±2 mmol STP min g-cat。基于此,突出了CuFeO-ZnFeO纳米复合材料作为未来燃料电池应用中按需制氢的经济高效催化剂的潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0afc/12177920/cee032f8bbec/la5c00895_0001.jpg

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