Biomass-derived N-doped carbon (BNC) is an important environmental material and widely used in the fields of water purification soil remediation. However, toxicant commonly synthesis process BNC materials have been largely ignored. Herein, we firstly report presence a highly toxic by-product (KCN) activation consequential carbothermal reduction reaction. Because this reaction also regulates N-d...

Phase pure HfB2–SiC powders were efficiently synthesized via microwave/molten salt assisted boro/carbothermal reduction (MMS-BCTR) method by using HfO2, SiO2, activated carbon and B4C as raw materials, NaCl–KCl a molten medium. The effects of mass ratio to reactant (ms/mr), holding period, reaction temperature content on the phase composition microstructure investigated. results showed that opt...

Preparation procedures and thermionic emission properties of graphitic carbon nanofibres (GCNFs) supported on Si wafer or commercial carbon felt supports are reported. GCNF/native-oxide Si wafer, GCNF/oxidized Si wafer, GCNF/Ni-coated Si wafer and GCNF/carbon felt nanocomposites are obtained by growing GCNFs from growth catalyst nanoparticles supported on these supports. Narrow herringbone GCNF...

Well-aligned ZnO nanowires (NWs) were successfully synthesized on Si(100) by the process of carbothermal reduction and vapor– liquid–solid method. Scanning electron microscopy and transmission electron microscopy results confirmed that ZnO NWs were single crystalline wurtzite structures and grew along the [0001] direction. The influences of substrate temperature and total pressure on the growth...

The fabrication by Spark Plasma Sintering (SPS) of bulk high entropy ceramics from powders obtained Self-propagating High temperature Synthesis (SHS) is addressed in this work. effect produced the introduction 1 wt.% graphite to before SPS investigated under different conditions. final density and composition sintered (Hf0.2Mo0.2Zr0.2Ti0.2Ta0.2)B2 (Hf0.2Mo0.2Zr0.2Ti0.2Nb0.2)B2 are found be nega...