|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Density estimated physicochemical properties of alanine-based ionic liquid [C_7mim][Ala] and its application in selective transesterification of soybean oil显示文摘Amino acid ionic liquid (AAIL) based on alanine, 1-n-heptyl-3-methylimidazolium alanine ([C7mim][Ala]), has been prepared and characterized. Since the IL can form strong hydrogen bonds with water, trace amount of water is a problematic impurity in the IL. Using the standard addition method (SAM), the densities were measured in the temperature range from 293.15 to 343.15±0.05 K. On the basis of the experimental data of density, the surface tension , molar volume, and the molecular volume Vm, molar enthalpy of vaporization lgHm0, and the thermal expansion coefficients , for [C7mim][Ala] were estimated using semi-empirical methods. Also the interstice model has been verified with good accordance. Then the [C7mim][Ala] was taken as catalyst in the transesterification reaction with fatty acid, where soybean oil was used as raw material and methanol as reactant. The amount of catalyst, alcohol consumption, reaction time, temperature and other factors of the reaction were investigated. Using GC determination, the conversions were calculated by the internal standard method. The main ingredients of the products were identified by GC-MS as palm methyl ester and linoleic acid methyl ester only, which showed high selectivity in palmitic acid and linoleic acid. | FANG DaWei LI Meng GE RiLe ZANG ShuLiang YANG JiaZhen GAO YanAn | 2012 | Science China Chemistry2012，55，8： | 2 |
| 2 | Topotactically constructed nickel-iron(oxy)hydroxide with abundant in-situ produced high-valent iron species for efficient water oxidation显示文摘The low efficiency of oxygen evolution reaction(OER) is regarded as one of the major roadblocks for metal-air batteries and water electrolysis.Herein,a high-performance OER catalyst of NiFe_(0.2)(oxy)hydroxide(NiFe_(0.2)-O_(x)H_(y)) was developed through topotactic transformation of a Prussian blue analogue in an alkaline solution,which exhibits a low overpotential of only 263 mV to reach a current density of 10 mA cm^(-2) and a small Tafel slope of 35 mV dec-1.Ex-situ/operando Raman spectroscopy results indicated that the phase structure of NiFe_(0.2)-O_(x)H_(y) was irreversibly transformed from the type of α-Ni(OH)_(2) to γ-NiOOH with applying an anodic potential,while ex-situ/operando 57Fe Mossbauer spectroscopic studies evidenced the in-situ production of abundant high-valent iron species under OER conditions,which effectively promoted the OER catalysis.Our work elucidates that the amount of high-valent iron species in-situ produced in the NiFe(oxy)hydroxide has a positive correlation with its water oxidation reaction performance,which further deepens the understanding of the mechanism of NiFe-based electrocatalysts. | Zhichong Kuang Song Liu Xuning Li Meng Wang Xinyi Ren Jie Ding Rile Ge Wenhui Zhou Alexandre IRykov Moulay TSougrati Pierre-Emmanuel Lippens Yanqiang Huang Junhu Wang | 2021 | Journal of Energy Chemistry2021，30，6： | 2 |
| 3 | Cervical vertebral angioplasty for brain stem ischemia 显示文摘 | Imparato AM Riles TS Kim GE | 1981 | Surgery1981，90，5： | 1 |
| 4 | The progress in diagnosis and treatment of trigeminal neuralgia显示文摘Trigeminal neuralgia(TN)is characterized by recurrent facial acupuncture like,electric shock like,burning like pain and other common clinical cranial nerve diseases in the trigeminal nerve distribution area.Around the world,people who are 40 or more are at risk.The incidence rate of TN of female is slightly higher than that of male and most of the affecting areas are on the right side unilaterally,which affects maxillary nerve and mandibular nerve,yet seldom ophthalmic nerve.Although controversy exists in the pathogenesis of TN,the most accepted theory is microvascular compression,which forces on the demyelination of the sensory axon of the trigeminal nerve root.Additionally,slight touch,conversation and chewing may cause intolerable pain.The diagnosis of TN mainly depends on clinical manifestation.The treatment mainly includes medicine,operation,and some supplementary methods.Among them,antiepileptics and tricyclic antidepressants are the first-line treatment.Surgical treatment is mainly used for patients with TN who have failed in drug treatment or have intolerable side effects.The methods of operation include destructive or non-destructive operation.Deep brain stimulation(DBS)and motor cortex stimulation(MCS)are new therapeutic techniques emerged recently.This method is expected to alleviate the refractory TN with poor drug control or ineffective conventional surgical treatment.At present,this method has not been approved for clinical treatment.Of course,more clinical data collection processes are in progress. | Xiaodong Wang Jian Yang Suping Li Maolin Ge Rile Wu | 2020 | Journal of Translational Neuroscience2020，5，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员