Abundant nanotube coated ordered macroporous carbon matrix with enhanced electrocatalytic activity

Bimetallic Oxalate Rod-Derived NiFe/Fe3O4@C Composites with Tunable Magneto-dielectric Properties for High-Performance Microwave Absorption

“…As shown in Figure a, it can be clearly found that the NFCR-600 sample possesses a special feature of nanosized particles embedded in a rodlike carbon matrix. Furthermore, the nanosized NiFe alloy (111) and Fe 3 O 4 ferrite (222) lattice planes exhibit interplanar distances of 0.206 and 0.241 nm, which are wrapped by amorphous carbon as shown in Figure b,c. , On the basis of HRTEM images of aggregated particles in the NFCR-600 sample and relative magnifications of three selected regions illustrated in Figure d–g, it could be distinctly verified that not only the amorphous carbon-magnetic particle interfaces exist in NFCR-600, the abundant heterogeneous interfaces between NiFe alloys (111)/Fe 3 O 4 (222) and NiFe alloys (111)/Fe 3 O 4 (111) also have been observed. Confirmed by HAADF and elemental mapping results, it can be concluded that the metallic Ni and Fe elements are uniformly distributed in the rodlike carbon matrix, which is derived from the pyrolysis of organic oxalate ions and surfactant PVA-1750.…”

Synthesis of polyurethane-derived nitrogen-doped carbon dots for a high-performance fluorescence bioimaging probe

“…At present, various raw materials including small molecule compounds, natural products and water-soluble synthetic polymers for use in the synthesis of diversied carbon materials. [5][6][7][8][9][10][11][12][13][14][15] For instance, Gu's group demonstrated that NCDs were synthesized using natural honey as raw material via a solvothermal method. 12 This NCDs emitted blue light under ultraviolet irradiation and could be used as a uorescence quenching/recovery probe for the detection of Au and glutathione.…”

Construction and performance of a simple and efficient g-C3N4 photocatalytic hydrogen production system

“…g-C 3 N 4 (CN) composed by non-metallic elements has been widely used in photocatalytic HER, carbon dioxide reduction, nitrogen xation and other reactions in recent years. [6][7][8][9][10][11][12] However, CN prepared by traditional methods with urea, melamine, dicyandiamide and thiourea as precursors has some defects, such as lack of active sites for surface reaction, high recombination rate of photogenerated electron hole pairs, low charge carrier transfer efficiency, and low specic surface area. These insufficiencies seriously limit its application in photocatalysis.…”