Work

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

Year: 2025

Type: article

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.

Source: International Journal of Energy Research

DOI: 10.1155/er/2454635

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

Institutions: Kyung Hee University, Korea Institute of Science and Technology

Language: English

Topic: Electrocatalysts for Energy Conversion

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $2,700