Co/N-doped carbon composites from cobalt-coordinated porous organic polyamines for catalytic reduction of organic dyes

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-05-29 DOI:10.1016/j.matlet.2025.138849

Jiahua He , Peng Miao , Dong Yang

引用次数: 0

Abstract

In this article, the nitrogen-rich organic porous polyamine (PPM) was synthesized by polycondensation of 2,6-pyridinedicarboxaldehyde and melamine under thermal conditions. The synthesized PPM has a high surface area, porosity, and abundant amine groups, especially pyridinic-N and triazine-N. The nitrogen-rich PPM facilitates Co/N coordination between the N species and Co ions, which can be used to load and stabilize cobalt ions. Then, Co/N-doped carbon composites (Co/N-CC) were obtained via pyrolysis of Co-PPM. Cobalt is well dispersed in Co/N-CC, and no obvious aggregation is observed. An improved catalytic activity was demonstrated by the Co/N-CC in the reduction of organic dyes and nitrobenzene compounds.

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钴配位多孔有机多胺制备的Co/ n掺杂碳复合材料催化还原有机染料

本文以2,6-吡啶二甲醛和三聚氰胺为原料，在热条件下缩聚合成了富氮有机多孔多胺（PPM）。合成的PPM具有高的比表面积、孔隙度和丰富的胺基，特别是吡啶- n和三嗪- n。富氮PPM有利于N与Co离子之间的Co/N配位，可用于装载和稳定钴离子。然后通过Co- ppm热解制得Co/ n掺杂碳复合材料（Co/N-CC）。钴在Co/N-CC中分散良好，没有明显的聚集现象。Co/N-CC对有机染料和硝基苯化合物的还原具有较好的催化活性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive