Characteristics of Lithium Polysilicate Electrolyte Synthesized by Sol-Gel Processing
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To find out suitable Si surface treatment and heat treatment conditions, acid treatment of Si wafer was done for lithium polysilicate electrolyte coating on Si wafer. In case of HCl treatment, the wet angle of a sample is 30o, which is the smallest wet angle of other acid in this experiment. Acid treatment time is 10 min, which is no more change of wet angle. Lithium polysilicate electrolyte was synthesized by hydrolysis and condensation of lithium silicate solution using perchloric acid. Thermal analysis of lithium polysilicate electrolyte shows the weight loss of ~23 % between 400 and 500 , which is due to the decomposition of LiClO4. The XRD patterns of the obtained lithium polysilicate electrolyte also show the decrement of LiClO4 peak at 400 . The optimum heat treatment temperature is below 400 , which is the suitable answer for lithium polysilicate electrolyte.Keywords:
Thermal Treatment
Thermal decomposition of [Cu4O(Cl+Br)6(OPPh3)4], starts at temperatures about 200°C. The decomposition proceeds in several steps. The intermediate formed in the first decomposition step (weight loss 2–4%) is a new crystalline phase with slightly different structure but with preserved central unit Cu4O. The only crystalline phases found in the further decomposition products was CuBr in all cases when the bromine atoms were present, the presence of CuCl was only observed at the decomposition of the hexachlorocomplex.
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Abstract The hydrolysis of model structures found in the hard blocks of polyurethanes has been studied under moderately acidic and neutral conditions. These include a series of N ‐alkyl and N ‐phenyl urethanes and ureas; for comparison purposes the corresponding amides and a carbonate ester based on bisphenol A were also studied. Of all functional groups the urethane was the most resistant to hydrolysis and the amide the most labile. Also, the N ‐phenyl compounds were hydrolyzed faster than the corresponding alkyl derivatives. The carbonate ester underwent relatively rapid hydrolysis. Polyether containing polyurethanes, known to be relatively stable to hydrolysis, are discussed as to which polymer segments provide the weakest links under hydrolytic conditions.
Amide
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Nanometre
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Enzymatic hydrolysis and acid hydrolysis was combined to optimize the process of hydrolyzed vegetable protein.The resultshowed the optimum conditions were hydrolyzed for 4 hours by protamex,then hydrolyzed for 3 hours under 95℃ by 2mol/L Hcl.With these condition,the level of MCP in HVP could be controlled less than 1ppm and the level of free amino acid could be more than 1g/100mL.These could get the standard of HVP.
Hydrolyzed protein
Enzymatic Hydrolysis
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Chemical decomposition
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The prelims comprise: Hydrolysis of nitriles Formation and hydrolysis of amides Hydrolysis of N-acyl amino acids Hydrolysis and formation of hydantoins Hydrolysis and formation of peptides Chemistry of β-lactams Transaminations and miscellaneous reactions Addition of amines to CC-Bonds References
Peptide bond
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The thermal decomposition process of HXeCl···H2O in solid Xe is studied, and HCl···H2O is identified as a decomposition product. The production is due to the two-body (2B) decomposition of HXeCl moiety, in agreement with theoretical predictions. Two types of 2B decomposition paths are predicted: catalytic and unimolecular 2B decompositions, where water molecule plays different roles. In an experiment to selectively produce HXeCl···D2O, only HCl···D2O is observed as a thermal decomposition product, indicating the occurrence of unimolecular 2B decomposition, where water molecule serves as a spectator. The activation energy for this decomposition process is experimentally determined to be 15 kJ mol−1.<br>
Moiety
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