catal相关论文
采用相转移催化法合成２－乙酰氧基－Ｎ－甲基乙酰苯胺，对其反应条件进行了研究，获得了总收率≥９７％，产品纯度≥９５％的结果。......
The magnetism and surface behaviour of Pt-Dy/γ-Al_2O_3 catalysts were studied respectively bymeans of a Faraday magnet......
Novel supramolecular organocatalysts of hydroxyprolinamide based on calix[4]arene scaffold for the e
A series of novel supramolecular organocatalysts of hydroxyprolinamide based on the upper rim of calix[4]arene scaffold ......
Compressed CO2 could promote the disproportionation reactions of aryl alcohols in water medium significantly.The control......
Nanoparticle Fe3 O4 encapsulated CuO, as a heterogeneous catalyst, is a facile system for the synthesis of diaryl ethers......
Preparation, Structure and Electrochemical Property of a Pyrazole-substituted Diiron Dithiolate Comp
A pyrazole-substituted diiron dithiolate complex [Fe2(μ-pdt)(CO)5(3,5-Me2Pz)](1,3,5-Me 2Pz=3,5-dimethylpyrazole) was pr......
This mini-review summarizes some novel aspects of reactions conducted in aqueous/organic emulsions stabilized by carbon ......
Helical 1,2-ethylene-silica nanofibers with lamellar mesopores on the surfaces and twisted rod-like mesopores inside wer......
Oxidative Methylation of Toluene with Methane over Basic Zeolite Catalysts Promoted with Alkali Meta
The catalytic effects for the oxidative methylation of toluene with methane over the basic zeolite catalysts prepared by......
Preliminary Exploration of the Reactor Configuration for Hydroformylation of 1-Dodecene Catalyzed by
Hydroformylation of 1-dodecene was studied in a biphasic system using water-soluble rhodium complex [RhCl(CO)(TPPTS)2] a......
Organic solvent-and phase transfer catalyst-free oxidation of cyclohexanol to cyclohexanone with dil
The oxidation of cyclohexanol to cyclohexanone with 30% aqueous hydrogen peroxide by using peroxotung-state complexes f......
Developing low-cost and high performance catalysts to replace precious metal based catalysts for oxygen reduction reacti......
Protective effect of ascorbic acid on cyclophosphamide induced testicular gametogenic and androgenic
Aim: To study the detrimental effects of cyclophosphamide on the testicular androgenic and gametogenic activities throu......
Tuberculosis (TB) is the most common cause of death in infectious diseases; it is estimated that approximately 2 million......
The total synthesis of(土)-cembrene-A, a termite pheromone, was achieved from geranylacetone and geraniol as starting m......
Analysis on Double-difference Earthquake Location and the Seismicity Pattern of the Yangjiang Earthq
The locations of about 400 earthquakes in Yangjiang,Guangdong Province are determined using the double-difference earthq......
Dienone-phenol Rearrangement of C-9 Oxygenated Decalinic Dienone and Analogs through B-Ring Cleavage
Dehydrogenation of 9-hydroxy decalinic enones and analogs with DDQ resulted in a formal dienone-phenol type rearrangemen......
A new series compounds, α-methylene-β-carboxy-γ-thiobutyrolactones, have been prepared and their biological evaluatio......
Building the Pharmacophore Model of HIV-1 Integrase Strand Transfer Inhibitors and Studying Their In
The replication of HIV-1 requires the integration of its cyclic DNA into host DNA by HIV-1 integrase (IN), which include......
Recent developments of the synthesis and applications of functionalized ionic liquids (including dual-functionalized ion......
High norbornene incorporation in ethylene-norbornene copolymerization with a bis(α-alkyloxoimine) ti
A novel bis(α-alkyloxoimine) titanium(IV) complex was synthesized and used as a catalyst precursor to catalyze homo-and......
Poly-L-lysine(PLL) was first electrodeposited onto the surface of a glassy carbon(GC) electrode.The PLL modified electro......
Benzoin condensation is an important carbon-carbon bond-forming reaction. The benzoin reaction with good yield, high ena......
Due to the increasingly strict emission standards of NOx on various industries,many tradi-tional flue gas treatment meth......
Phase engineering is arising as an attractive strategy to tune the properties and functionalities of nanomaterials.In pa......
设计并完成了过渡金属铑、铜化合物等的催化下,苯基重氮乙酸乙酯与不同硫醚的硫叶立德[2,3]-σ重排反应.通过1H NMR方法测定混合产......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
采用溶胶-凝胶法制备纳米固载杂多酸催化剂H4SiW12O40/SiO2。以癸酸和异戊醇为原料,催化合成癸酸异戊酯。考察了影响酯化率的各种......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
综述了大比表面积大孔体积的氧化铝的制备方法及其进展,包括醇铝水解法、热分解法、偏铝酸钠CO2中和法、有机溶剂法、有机模板剂法......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
准东煤的碱金属(特别是Na、Ca)含量高,直接作为动力煤燃烧会导致严重的锅炉沾污、结渣。采用水热提质方法能够有效脱除煤中碱金属,......
综述了以丙烯、丙烷、生物质(甘油、3-羟基丙酸、谷氨酸和乳酸)等为原料的丙烯腈合成路线、工艺特点及其催化剂。指出目前95%以上......
小麦秸秆作为一种农业副产品,是制备生物质化学品的重要原料。乙酰丙酸甲酯(methyl levulinate,ML)是一种具有广泛应用前景的生物......
The interaction between the metal and the support of supported metal catalysts, which are widely used in industry, is th......
为了研究高温对费托铁基催化剂性能的影响,在浆态床反应器中考察了高温对Fe-Cu-K-Si费托合成催化剂反应活性及选择性的影响。催化......
研制成ＺＡ－９２型甲苯歧化与烷基转移催化剂，在反应压力３．０ＭＰａ、ＷＨＳＶ１．３２ｈ＾－１、氢烃分子比６．７／１下反应５００ｈ，反应温度３８０￣３９２℃，转化率４１．８９ｍｏｌ％。苯加Ｃ８Ａ选择性９７．００ｍｏｌ％。在３９８ｋｔ／ａ引进装置上工业运转７０１天，在反应......
过氧化氢酶与血红蛋白、肌红蛋白一样,统属于血红蛋白质,具有相同的活性部位——铁卟啉,因此金属卟啉作为生物酶模拟的研究有着重......
通过500℃焙烧卵状MnCO_3前驱体,制得了一种高效降解亚甲基蓝的卵状ε-MnO_2催化剂.采用扫描电子显微镜、X射线衍射分析仪、紫外可......
对油气田含硫废水采用化学混凝、臭氧氧化后,再进行超声波与臭氧催化氧化的复合处理工艺技术进行深度处理。实验研究得到此工艺技......
采用溶胶-凝胶法制备了超微孔材料（TiPW/SA ），通过FT-IR和N2吸附脱附对其进行表征。并以模拟汽油（二苯并噻吩硫质量分数为300 m g/kg ）......
简要的综述了近几年有关催化醛的硅腈化反应和催化酮的硅腈化反应的报道,包括金属络合物、小分子、环肽、非金属等作为催化剂在硅......
制备固体酸催化剂SO42-/TiO2-Fe2O3,用于柠檬酸三正丁酯的合成试验.考察了反应时间、初始进料物质的量比、催化剂用量对反应产率的......
以苯酚、甲醛和NaOH为原料，采用两步碱催化合成工艺获得固含量为70％～74％的水溶性酚醛树脂．最佳反应条件是n（苯酚）：n（甲醛）：n（NaOH）=1：2：0．3，在50～90℃......
在不同温度下测定了双缩联苯胺合钴（Ⅱ）（Ｃｏ２Ｌ２）的饱和吸氧量，求得其氧加合常数和热力学参数，合成了该钴配合物的双氧加合物，并用元素分析，红外光......
介绍了国内外均相络合催化的研究及发展，并对均相络合催化的发展方向进行了展望。...
间苯二甲腈液相催化加氢制间苯二甲胺的Ｒａｎｅ６Ｎｉ催化剂用化学 原法进行改性，经过大量催化剂筛选，结果表明，在同时引入ａ、ｇ双元素改性后，反应速率......
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合成了新的单过氧铌钨磷杂多酸盐ＭｎＨ４－ｎ「ＰＷ１１（ＮｂＯ２）Ｏ３９」·ｘＨ２Ｏ（Ｍ＝Ｍｅ４Ｎ＾＋（ＴＭＡ），Ｅｔ４Ｎ＾＋（ＴＥＡ），Ｂｕ４Ｎ＾＋（ＴＢＡ），Ｈｅｐ４Ｎ＾＋（ＴＨＡ）和单铌取代钨磷酸盐Ｍ４「ＰＷ１１ＮｂＯ４０」·ｘＨ２Ｏ（Ｍ＝ＴＢＡ，ＴＨＡ和Ｋ＾＋）·ＩＲ和ＵＶ光谱、极谱Ｉ＾－－Ｓ２Ｏ＾２－３滴定证明「ＰＷ１１（ＮＢＯ２）Ｏ３９」＾４－中有ＮｂＯ２基存在，＾１８３Ｗ ＮＭＲ数据指......
