Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. 1739-84-0, formula is C5H8N2, Name is 1,2-Dimethyl-1H-imidazole. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents. Computed Properties of 1739-84-0.
Shen, Shuiyun;Chen, Junren;Yan, Xiaohui;Cheng, Xiaojing;Zhao, Lutian;Ren, Ziwen;Li, Lin;Zhang, Junliang research published 《 Insights into properties of non-precious metal catalyst (NPMC)-based catalyst layer for proton exchange membrane fuel cells》, the research content is summarized as follows. Non-precious metal catalysts (NPMCs) are regarded as the ultimate alternative to high-cost Pt-based catalysts for oxygen reduction reaction in proton exchange membrane fuel cells (PEMFCs). Indeed, great progresses have been made in the rotating disk electrode (RDE) performance of NPMCs, while their corresponding fuel cell performance remains far from satisfying real demands due to the fact that the properties of NPMC-based electrode need to be clarified and optimized. In this work, a series of properties including the oxygen reduction activities, catalyst layer proton conduction resistance and oxygen transport resistance are investigated on membrane electrode assemblies (MEAs) fabricated from home-made Fe-N-C catalysts. It is found that both the oxygen reduction activities and catalyst layer proton conduction increase with the catalyst loading. Unexpectedly, the total oxygen transport resistance is quite large for the MEA with a lower catalyst loading, and the resistance first decreases and then enlarges with the increase in catalyst loading, resulting from a comprehensive effect between local transport and bulk transport. This provides a novel meaningful guide that compared to using Pt-based MEA technique directly, special and deliberate designs are needed for MEAs based on NPMCs to balance the cathode catalyst layer (CCL) activity, proton resistance and oxygen transport resistance simultaneously.
1739-84-0, 1,2-Dimethylimidazole is used in the synthesis of 1,2-dimethyl-3-n-butylimidazoliumchloride and 1,2-dimethyl-3-n-propylimidazolium chloride. It also can be used in the synthesis of 1-(2-methoxyethyl)-2,3-dimethylimidazolium chloride and hexafluorophosphate salts.
1,2-Dimethylimidazole is a heterocyclic compound that contains nitrogen and carbon. It can be produced by the reaction between glyoxal and fatty acid in the presence of a base. 1,2-Dimethylimidazole has been shown to have biological properties such as an antioxidant effect. It is also used as a chemical intermediate for production of other chemicals such as 2-methylimidazole and 3-methylimidazole. 1,2-Dimethylimidazole has been shown to react with metal carbonyls to produce methylimines, which are useful intermediates in organic synthesis. The reaction mechanism involves hydrogen bonding and steric interactions between the imidazole ring and the metal carbonyl reactant., Computed Properties of 1739-84-0
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem