CAS: 1271-28-9; Nickel(Ii) Cyclopenta-2,4-Dien-1-Ide

上下游产品

cyclopentadienylmagnesium bromide nickel dibromide nickel dichloride nickelnickel pyrographite

镍,溴,环戊二烯置于ice,Petroleum Ether体系中,用 乙二醇二甲醚,二乙胺 用作溶剂,化学反应 13.0H,反应生成双(环戊二烯)镍
参考文献:Catalyst System Composed Of Metallocenes Comprising Substituents Containing Fluorine
标题:Catalyst System Composed Of Metallocenes Comprising Substituents Containing Fluorine
摘要:本发明涉及一种由含有氟的取代基的金属茂类化合物组成的催化剂体系,以及制备该体系的方法及其在烯烃聚合中的应用.

专利信息

专利号:US-2025023061-A1
优先权日:2021-11-17
标题 :Method for the synthesis of a metal catalyst surrounded with a carbon matrix
发明人：CHATENET MARIAN; DOAN HUONG; SGARBI RICARDO
权利人:INST POLYTECHNIQUE GRENOBLE; UNIV GRENOBLE ALPES; CENTRE NAT RECH SCIENT; UNIV SAVOIE MONT BLANC
摘要:A method for a synthesis of a metal catalyst, including providing at least one metal complex including a metal ion and a non-chelating complexing agent having carbon, the complex having a decomposition temperature, and performing a pyrolysis of the complex at a temperature greater than or equal to a decomposition temperature of the complex, whereby inducing a formation of nanoparticles surrounded by a carbon matrix to form the catalyst. Thanks to the carbon matrix, the catalysts provided herein can be corrosion resistant, self-healing, more cost-effective, and can have higher catalytic activity. The synthesis of the catalyst and its properties can furthermore be improved compared to catalysts formed from a complex including a chelating.

专利号:US-10472241-B2
优先权日:2015-10-06
标 题:Process for the synthesis of carbon nanotubes
发明人：GOSWAMI GOPAL KRISHNA; PATIL SWANAND DILIP; VEEDU SREEKUMAR THALIYIL; BALACHANDRAN VIJAI SHANKAR
权利人:RELIANCE INDUSTRIES LTD
摘要:The present disclosure relates to a process for the synthesis of highly crystalline carbon nanotubes (CNTs). Processes known in the art employ post-synthesis processes such as oxidation or hydrothermal treatment to produce CNTs with high crystallinity. The present disclosure produces highly crystalline CNTs at a low growth temperature and without hydrogen flow condition and without employing any post-production process. The process disclosed in the present disclosure produces CNTs having a crystallinity greater than 5 which makes them suitable for various industrial applications.

专利号:US-10930473-B2
优先权日:2015-12-15
标 题:Apparatus and method for plasma synthesis of carbon nanotubes
发明人：PAUKNER CATHARINA; KURZEPA LUKASZ; KOZIOL KRZYSZTOF KAZIMIERZ
权利人:FGV CAMBRIDGE NANOSYSTEMS LTD
摘要:Apparatus and method for plasma synthesis of carbon nanotubes couple a plasma nozzle to a reaction tube/chamber. A process gas comprising a carbon-containing species is supplied to the plasma nozzle. Radio frequency radiation is supplied to the process gas within the plasma nozzle, so as to sustain a plasma within the nozzle in use, and thereby cause cracking of the carbon-containing species. The plasma nozzle is arranged such that an afterglow of the plasma extends into the reaction tube/chamber. The cracked carbon-containing species also pass into the reaction tube/chamber. The cracked carbon-containing species recombine within the afterglow, so as to form carbon nanotubes in the presence of a catalyst.

专利号:US-11952280-B2
优先权日:2019-02-19
标 题:Synthesis of quantum carbon nanotubes
发明人：LASHMORE DAVID S; BYSTRICKY PAVEL; PERERA SUSANTHRI CHANDIMA; TARY IMRE; LICATA VITO M
权利人:AMERICAN BORONITE CORP
摘要:The present disclosure provides systems and methods for producing a volume of substantially all armchair nanotubes of a preselected chirality for fabricating yarn consisting of substantially all metallic conducting armchair tubes. The systems and methods can be used for the synthesis of (10,10), (11,11), and (12,12) metallic armchair carbon nanotubes and potentially other chiralities. The elements of the present disclosure include: (i) a carbon source that provides substantial numbers of ethylene and acetylene radicals in combination with a high population of ethylene groups and a small amount of methane, (ii) a hydrogen to carbon ratio sufficient to “passivateâ€? all other chiral growth sites to a higher degree than armchair growth sites, and (iii) a CVD process that can be tuned to create a well-controlled population of catalyst with tight diameter distribution with sparse modal distribution that falls within a range of the desired single wall diameters.

专利号:US-7261871-B2
优先权日:2001-09-28
标 题 :Fabrication of carbon nanotube films from alkyne-transition metal complexes
发明人：IYER VIVEKANANTAN S; VOLLHARDT K PETER C
权利人:UNIV CALIFORNIA
摘要:A simple method for the production or synthesis of carbon nanotubes as free-standing films or nanotube mats by the thermal decomposition of transition metal complexed alkynes with aryl, alkyl, alkenyl, or alkynyl substituents. In particular, transition metal (e.g. Co, Ni, Fe, Mo) complexes of diarylacetylenes, e.g. diphenylacetylene, and solid mixtures of these complexes with suitable, additional carbon sources are heated in a vessel. More specifically, the heating of the transition metal complex is completed at a temperature between 400-800° C. and more particularly 550-700° C. for between 0.1 to 24 hours and more particularly 0.5-3 hours in a sealed vessel under a partial pressure of argon or helium.

专利号:US-11511995-B2
优先权日:2017-08-22
标题 :Methods and devices for synthesis of carbon nanotubes
发明人：NGUYEN CATTIEN V
权利人:NTHERMA CORP
摘要:Provided herein are methods and devices for production of carbon nanotubes (CNTs) which have high structural uniformity and low levels of impurities. The device includes, for example, a module for depositing catalyst on a substrate, a module for forming CNTs, a module for separating CNTs from the substrate, a module for collecting the CNTs and a module for continuously and sequentially advancing the substrate through the above modules. The method includes, for example, the steps of depositing catalyst on a moving substrate, forming carbon nanotubes on the substrate, separating carbon nanotubes from the substrate and collecting the carbon nanotubes from the surface, where the substrate moves sequentially through the depositing, forming, separating and collecting steps.