摘要:
Provided is a method for manufacturing a cathode active material for a lithium secondary battery, the method including heat-treating a precursor aqueous solution containing a lithium precursor, a transition metal precursor, and an organic acid containing a carboxyl group, and having a chelation index (C.I) value less than 1 and 0.5 or more, wherein the chelation index value is defined by transmittance of a peak located in a wavenumber from 1,700 to 1,710 cm -1 and transmittance of a peak located in a wavenumber from 1,550 to 1,610 cm -1 in Fourier transform infrared (FTIR) spectroscopy spectrum.
摘要:
Disclosed is a nano-sized Cu based catalyst and a method of preparing the same including dissolving, in an aqueous solution, a first component comprising a Cu precursor, a second component precursor comprising one or more selected from the group consisting of a transition metal, an alkaline earth metal and a Group IIIb metal, and a third component precursor comprising one or more selected from the group consisting of alumina, silica, silica-alumina, magnesia, titania, zirconia and carbon and then performing stirring; precipitating the stirred mixture solution using Na2CO3 and NaOH to form a catalyst precursor precipitate; and washing and filtering the formed catalyst precursor precipitate. Also a method of preparing alcohol is provided, including reacting hydrogen with carboxylic acid including a single acid or an acid mixture of two or more acids derived from a microorganism fermented solution, using the nano-sized Cu based catalyst.
摘要:
The present invention relates to a method for producing hydrocarbons from biomass or organic waste. The present invention provides: a method for effectively producing diverse hydrocarbons by using a raw material comprising mixed organic acids that can be obtained by anaerobic fermentation which is a fermentation process in biogasification technology; and a method for producing diverse products such as fuel, lube base oil and aromatics by using a raw material comprising mixed organic acids.
摘要:
Provided is a method for manufacturing a cathode active material for a lithium secondary battery, the method including heat-treating a precursor aqueous solution containing a lithium precursor, a transition metal precursor, and an organic acid containing a carboxyl group, and having a chelation index (C.I) value less than 1 and 0.5 or more, wherein the chelation index value is defined by transmittance of a peak located in a wavenumber from 1,700 to 1,710 cm -1 and transmittance of a peak located in a wavenumber from 1,550 to 1,610 cm -1 in Fourier transform infrared (FTIR) spectroscopy spectrum.
摘要:
The present invention relates to a method for producing hydrocarbons from biomass or organic waste. The present invention provides: a method for effectively producing diverse hydrocarbons by using a raw material comprising mixed organic acids that can be obtained by anaerobic fermentation which is a fermentation process in biogasification technology; and a method for producing diverse products such as fuel, lube base oil and aromatics by using a raw material comprising mixed organic acids.