Poly(2-aminothiazole) as a unique precursor for nitrogen and sulfur co-doped porous carbon: immobilization of very small gold nanoparticles and its catalytic application

Abstract

We report the synthesis of poly(2-aminothiaozle) with a plate structure containing nanoparticles, and the one-step synthesis of nitrogen and sulfur co-doped porous carbon materials using P2AT as the source of both N and S.

Metal/Porous Carbon Composites for Heterogeneous Catalysis: Old Catalysts with Improved Performance Promoted by N-Doping

“…However, doping is more often used to refer to the incorporation of N into the bulk while functionalization, in most cases, means the N dopants on the carbon surface. In general, N-containing carbon materials synthesized by an in situ synthesis approach, such as pyrolysis of various precursors containing both nitrogen and carbon, will possess N atoms both in the backbone and on the surface, − while those obtained by post-treatment methods, such as pyrolysis of carbon material in ammonia atmosphere, will possess N atoms largely on the surface. − Unfortunately, identification of the exact position of N atoms is still very difficult because of the limited characterization techniques and the presence of abundant defects in carbon materials …”

Facile synthesis and catalytic application of selenium doped graphene/CoFe2O4 for highly efficient and noble metal free dehydrogenation of formic acid

“…It is important to note that, in continuation of our interest in different catalysts [33][34][35][36][37], though the present study provides a simple approach to achieve Se doped graphene…”

Nitrogen-doped porous carbon materials: promising catalysts or catalyst supports for heterogeneous hydrogenation and oxidation

“…Compared with post-treatment methods, which require more than two synthetic steps, direct synthesis offers a more convenient, one-step way to prepare targeted NPC materials. Typically, direct synthesis is completed in two ways: 1) direct carbonization of nitrogen-rich carbon precursors, where the precursors are typically molecules containing cross-linkable groups such as -CN and -NH2, 32,104,105 nitrogen-rich polymers, [106][107][108][109] ionic liquids, 43,110 and biomass derivatives; 26,43,111 2) direct carbonization of carbon precursors mixed with nitrogen dopants, where added nitrogen coreagents including a series of amines such as NH 3 , melamine, urea and aniline are also used in the post-treatment method. 30,104,[112][113][114][115][116][117][118][119][120][121][122][123][124] Both of these strategies facilitate the incorporation of nitrogen functionalities throughout the entire carbon structures in a more homogeneous way and thus contribute to more stable nitrogen functionalities compared with surface doping via post-synthetic methods.…”

“…However, it is more preferable to call it a carbonaceous polymer because of the low carbonization temperature (180 °C), where it is suspicious for porosity maintenance when sent to high-temperature carbonization. 109 Therefore, the careful selection of carbon precursors and preferable condensation methods are required for the direct synthesis NPC materials.…”

“…The resulting catalyst was tested for nitroarene hydrogenation in the presence of NaBH 4 or H 2 as the reductant. 109 These works were just a test of the application of a novel support, and the actual effects of nitrogen were not noted. However, the intrinsic interaction between nitrogen and metal indeed matters significantly.…”