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Existing methodological strategies for the doping of nitrogen (N) atoms in carbon materials usually contain more than one species with indefinite N content, which made it difficult to study the role of each type of N atoms played duing the doping and severely restrict the wide application. Herein, we reported a developed synthetic strategy for preparing carbonous materials contained with specific...
Rational design of low-cost and highly-efficient bifunctional oxygen electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is currently critical for renewable energy storage and conversion devices. Herein, we represent a series of three-dimensional porous B and N co-doped graphene aerogels (BN-GAs) using NH4B5O8 as precursor for B and N source by hydrothermal method...
The development of highly efficient visible-excited charge separation photo active materials has attracted great attention for solving the global energy crisis and environmental problems. In this paper, p-type BiOBr nanoplates decorated n-type nitrogen doped graphene (BiOBr-NGR) composites are constructed by a facile wet chemical method. The formation of p-n junctions was beneficial to the efficient...
A facile bottom-up approach for producing nitrogen doped graphene quantum dots (N-GQDs) was carried out by the carbonization of ammonium citrate under atmospheric pressure. And further, N-GQDs/BiOBr nanohybrids with N-GQDs uniformly distributed on BiOBr nanoplates were fabricated by a one-pot solvothermal method using the proposed N-GQDs as the precursor. As an excellent enhancer, the doped N-GQDs...
Hollow carbon beads of around 3.0mm in diameter were prepared by a simple phase inversion method and subsequent carbonisation. Due to the low density and hydrophobic property, the hollow carbon beads were floatable on water. Different organic solvents and oils were used to study the oil sorption properties of the carbon beads. Their toluene sorption capacity was as high as 55% of their own volume...
A carbon nanotube (CNT) array based spray-winding approach for CNT film fabrication was developed by adding a post hot-pressing process, and an epoxy solution was used to fabricate CNT/epoxy composite film. It showed that the hot-pressing process benefited the load transfer within CNT films by reducing the porosity among CNT bundles and was more efficient in improving the tensile properties of few...
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