Improved Hydrogen Production Through Electrochemical Dehydrogenation of Tetrahydroquinolines Using TEMPO to Suppress Dimerization

IF 4.3 3区工程技术 Q2 ENERGY & FUELS

International Journal of Energy Research Pub Date : 2025-03-29 DOI:10.1155/er/2454635

Aeri Choo, Jaehwan Cheong, Yongmin Kim, Hyangsoo Jeong, Joohoon Kim

引用次数: 0

Abstract

As a sustainable and effective strategy for hydrogen production, the electrochemical dehydrogenation of saturated organic heterocycles has recently gained significant attention in energy research. Here, we present an unusual perspective on the electrochemical dehydrogenation of 1,2,3,4-tetrahydroquinoline (THQ) and its derivatives, for example, 2-methyl-1,2,3,4-tetrahydroquinoline (M-THQ), in the presence of (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) in acetonitrile. The electrochemical oxidation of THQs led to their dimerization, thereby restricting the efficient electrochemical dehydrogenation of THQs. Detailed electrochemical studies revealed the crucial role of TEMPO in suppressing the side reaction of dimerization, consequently enhancing the electrochemical dehydrogenation of THQs when TEMPO is employed.

Abstract Image

查看原文本刊更多论文

利用TEMPO抑制二聚化，通过电化学脱氢提高四氢喹啉的产氢率

作为一种可持续且有效的制氢策略，饱和有机杂环的电化学脱氢最近在能源研究领域获得了极大关注。在此，我们从一个不同寻常的角度介绍了在乙腈中，在（2,2,6,6-四甲基哌啶-1-基）氧基（TEMPO）存在下，1,2,3,4-四氢喹啉（THQ）及其衍生物（例如 2-甲基-1,2,3,4-四氢喹啉（M-THQ））的电化学脱氢反应。THQs 的电化学氧化导致其二聚化，从而限制了 THQs 的高效电化学脱氢。详细的电化学研究揭示了 TEMPO 在抑制二聚化副反应中的关键作用，因此当使用 TEMPO 时，可以提高 THQs 的电化学脱氢反应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Energy Research 工程技术-核科学技术

CiteScore

9.80

自引率

8.70%

发文量

1170

审稿时长

3.1 months

期刊介绍： The International Journal of Energy Research (IJER) is dedicated to providing a multidisciplinary, unique platform for researchers, scientists, engineers, technology developers, planners, and policy makers to present their research results and findings in a compelling manner on novel energy systems and applications. IJER covers the entire spectrum of energy from production to conversion, conservation, management, systems, technologies, etc. We encourage papers submissions aiming at better efficiency, cost improvements, more effective resource use, improved design and analysis, reduced environmental impact, and hence leading to better sustainability. IJER is concerned with the development and exploitation of both advanced traditional and new energy sources, systems, technologies and applications. Interdisciplinary subjects in the area of novel energy systems and applications are also encouraged. High-quality research papers are solicited in, but are not limited to, the following areas with innovative and novel contents: -Biofuels and alternatives -Carbon capturing and storage technologies -Clean coal technologies -Energy conversion, conservation and management -Energy storage -Energy systems -Hybrid/combined/integrated energy systems for multi-generation -Hydrogen energy and fuel cells -Hydrogen production technologies -Micro- and nano-energy systems and technologies -Nuclear energy -Renewable energies (e.g. geothermal, solar, wind, hydro, tidal, wave, biomass) -Smart energy system