Here, the catalytic activity of Fe-C44 and Fe-Si44 for oxygen reduction reaction by effective mechanisms are examined. The nanocatalysts (Fe-C44 and Fe-Si44) for ORR mechanisms are suggested and results are compared with Pt-based catalysts. Results indicated that the H2O on surfaces of Fe-C44 and Fe-Si44 nanocages are physically absorbed and it means that H2O is easily desorbed from Fe-C44 and Fe-Si44 nanocages. The adsorption OOH on Fe-C44 and Fe-Si44 nanocages has higher Eadsorption than O2 adsorption and also dissociation of O2 molecules on Fe-C44 and Fe-Si44 nanocages has high activation barrier energy. The nanocage-*OH, nanocage-*OH and H2O and nanocage-*O and H2O formation are rate-determining steps in mechanisms 1, 2 and 3. It can be demonstrated that pathway 1 is effective mechanism for ORR on Fe-C44 and Fe-Si44 nanocages. Results shown that the overpotential of ORR on Fe-C44 and Fe-Si44 nanocages are lower than Pt catalysts.
The research is aimed at the synthesis process conditions of anti-oxidant 2,2,4-trimethyl-1,2-dihydro-quinoline polymer(C 12 H 15 N) n . n = 2-4, TMDQP or anti-oxidant RD). One-step and solventfree preparation of rubber anti-oxidant TMDQP replacing the traditional process of hydrochloric acid by solid resin as a catalyst recycling used method, the filter reactor with a certain amount of aniline, acetone, open the mixing device, the use of circulating pump carried out the recycle, when the temperature rose to about 90-95 C and stop heating, recycle time of about two hours around and the discharge, the method by flashing TMDQP monomer and unreacted raw materials will be separated, after the separation of raw materials back into the reactor to the recycle feeding, collected into the next TMDQP monomer in the polymerization reactor, polymerization a small amount of hydrochloric acid, the polymerization time of about 4.5 hours, at 120-125 C and then in a little of sodium hydroxide solution are added controlled pH between 7 to 9 and separated after distillation separation of high-quality TMDQP. Use of the process: in the first place, increase the effective concentration of rubber anti-oxidant TMDQP, the content of dimer, trimer and tetramer of TMDQ was increased from 46% to 75%. In the second no waste water produced, environmental pollution has been controlled.
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