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The development of active and stable metal-based catalysts are highly desired in chemical transformation. As is known, the catalytic activity and durability of supported catalyst are strongly dependent on the morphology of supporting material and the size distribution of metal nanoparticles (NPs). We report the fabrication of a high-performance nitrogen-doped carbon tubes@Pd (NCT@Pd) catalyst, in...
A three-dimensional (3D) structure carbon foam for microwave absorption is synthesized by a facile template method using coal liquefaction residue (CLR) as carbon source. The results have shown that the sample made under optimized conditions has exhibited a broad effective absorption bandwidth up to 5.8 GHz in a range of 2–18 GHz with a reflection loss ≤ −10 dB. The magnetic Fe species derived from...
Carbon deposition on a W cathode during the electrolysis was performed in molten LiCl–NaCl–Na2CO3 under CO2 atmosphere. The electrochemical process was investigated by cyclic voltammetry on the glass carbon electrode. The minimum energy consumption is 20.1 kWh for 1 kg of carbon. Constant voltage electrolysis combined with a real-time resolution mass spectrum demonstrated the absence of the formation...
A facile one-step synthesis strategy has been developed for producing fluorescent carbon quantum dots (CQDs) from a kind of Chinese coal, Jincheng anthracite. Surface grafting of the CQDs was completed and systematically investigated by grafting with a series of organic amino molecules. It was found that the solubility and the optical properties of CQDs vary with and depend on its surface chemistry...
The rapid and scalable synthesis of hierarchical carbon monoliths with an ordered mesostructure and fully interconnected macropores has been demonstrated. Resorcinol and formaldehyde based polymers were used as the carbon precursor, triblock copolymer Pluronic F127 as the structural directing agent, and organic base lysine as both the polymerization catalyst and mesostructure assembly promoter. In...
Tubular structured ordered mesoporous carbon CMK-5 was investigated for the adsorption of the industrial dyes reactive blue 19, acid red 57 and fuchsin basic in aqueous solutions at room temperature. It was found that CMK-5 exhibits an ultrahigh adsorption rate and superior adsorption capacities for these dyes. Its maximum adsorption capacities for reactive blue 19, acid red 57 and fuchsin basic were...
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