in solid heating the precursor in a sealed quartz ampules under vac. (1E-5 mbar) together with quartz plates at 400°C for 72 h, then at 800 or 650°C for 24 h; detected by mass-spectrometry;
参考文献
Journal of the American Chemical Society, , vol. 124, # 44 p. 13130 - 13138
hydrogen in neat (no solvent) CF4 introduced into radio-frequency capacitively coupled plasma region; H2 fed through quartz tube; flow rate of CF4 gas and H2 kept at 15 and 30 sccm, respectively; total gas pressure was 100 mTorr; substrate temp. was 500°C;
air in N,N-dimethyl-formamide pyromellitic dianhydride dissolved in polyacrilonitrile in DMF; dissolved in benzidine; stirred; blend soln. spun into fibre through positively charged capillary; (air) heated up to 280°C for 1 h; (Ar) carbonized up to 1000°C;
参考文献
Solid State Communications, , vol. 142, # 1-2 p. 20 - 23
air in ethylene glycol org. compd. soln. stirring at 50°C for 2 h, heating at 135°C for 5 h, gel charring at 300°C for 2 h in electric furnace, residue grinding, heating at 400°C for 8 h in air on Al2O3 boat, furnace cooling to room temp.; TEM;
hydrogen in neat (no solvent) C2F6 introduced into radio-frequency capacitively coupled plasma region;H2 fed through quartz tube; flow rate of C2F6 gas and H2 kept at 15 and 30 sccm, respectively; total gas pressure was 100 mTorr; substrate temp . was 500°C;
