3470-99-3Relevant articles and documents
Fatty acid decarboxylation reaction kinetics and pathway of co-conversion with amino acid on supported iron oxide catalysts
Bian, Junjie,Wang, Yue,Zhang, Qi,Fang, Xudong,Feng, Lijuan,Li, Chunhu
, p. 47279 - 47287 (2017)
Fe2O3/Al-MCM-41 nanocomposite catalysts were designed and fabricated to upgrade microalgae hydrothermal liquefaction (HTL)-derived biocrude and its model compounds (palmitic acid and glutamic acid) in the absence of hydrogen. The Fe
Novel Pyrrolinium-based Ionic Liquids for Lithium Ion Batteries: Effect of the Cation on Physicochemical and Electrochemical Properties
Kim, Hyung-Tae,Kwon, Oh Min,Mun, Junyoung,Oh, Seung M.,Yim, Taeeun,Kim, Young Gyu
, p. 267 - 276 (2017/04/26)
Lithium ion batteries (LIBs) are one of the most promising energy conversion/storage systems, but the low thermal stability of the current electrolytes in LIBs should be improved to expand their potential applications. To enhance the safety properties of LIBs, novel pyrrolinium-based ionic liquids (ILs) were proposed as an alternative electrolyte to the current carbonate electrolyte, which have some task-specific functional groups, i.e., a planar C[dbnd]N double bond, a C-O ether linkage, and no unstable C-H bond, designed to improve their electrochemical performances as well as the physicochemical properties. As a result, the pyrrolinium-based ILs exhibited much improved physicochemical and electrochemical properties compared to those of the known ILs. Among the prepared ILs, N-allyl-2-methoxypyrrolinium bis(fluorosulfonyl)imide (A(OMe)Pyrl-FSI, 4) showed the high ionic conductivity (10.2 mS cm?1), the very good cycling performance (99.3% of retention ratio after 50 cycles) with a LiFePO4 electrode, and the much improved lithium ion transference number (0.19). IL 4 also had the remarkable rate capability at 5 C-rate with the retention ratio of 81.2% (124.8 mA h g?1), compared to the initial discharge capacity of 153.7 mA h g?1 at 0.1 C-rate. In addition, both their high thermal stability and non-flammability were also confirmed.
Synthesis of biobased N-methylpyrrolidone by one-pot cyclization and methylation of γ-aminobutyric acid
Lammens, Tijs M.,Franssen, Maurice C. R.,Scott, Elinor L.,Sanders, Johan P. M.
scheme or table, p. 1430 - 1436 (2010/09/05)
N-Methylpyrrolidone (NMP) is an industrial solvent that is currently based on fossil resources. In order to prepare it in a biobased way, the possibility to synthesize NMP from γ-aminobutyric acid (GABA) was investigated, since GABA can be obtained from glutamic acid, an amino acid that is present in many plant proteins. Cyclization of GABA to 2-pyrrolidone and subsequent methylation of 2-pyrrolidone to NMP was achieved in a one-pot procedure, using methanol as the methylating agent and a halogen salt (i.e. ammonium bromide) as a catalyst. A selectivity above 90% was achieved, as well as a high conversion. Methylation of 2-pyrrolidone could also be done with dimethyl carbonate, but then the selectivity for NMP was less (67%).