نتایج جستجو برای: bimetallic rod

تعداد نتایج: 27291  

Journal: :Journal of the American Chemical Society 2014
Tzu-Pin Lin Jonas C Peters

New approaches toward the generation of late first-row metal catalysts that efficiently facilitate two-electron reductive transformations (e.g., hydrogenation) more typical of noble-metal catalysts is an important goal. Herein we describe the synthesis of a structurally unusual S = 1 bimetallic Co complex, [((Cy)PBP)CoH]2 (1), supported by bis(phosphino)boryl and bis(phosphino)hydridoborane lig...

Journal: :Nano letters 2013
Lin Gan Marc Heggen Rachel O'Malley Brian Theobald Peter Strasser

Nanoporosity is a frequently reported phenomenon in bimetallic particle ensembles used as electrocatalysts for the oxygen reduction reaction (ORR) in fuel cells. It is generally considered a favorable characteristic, because it increases the catalytically active surface area. However, the effect of nanoporosity on the intrinsic activity and stability of a nanoparticle electrocatalyst has remain...

Journal: :Inorganic chemistry 2014
Michael Holland Martin D Donakowski Eric A Pozzi Andrew M Rasmussen Thanh Thao Tran Shannon E Pease-Dodson P Shiv Halasyamani Tamar Seideman Richard P Van Duyne Kenneth R Poeppelmeier

A series of pseudosymmetrical structures of formula K10(M2OnF11-n)3X (M = V and Nb, n = 2, X = (F2Cl)1/3, Br, Br4/2,I4/2; M = Mo, n = 4, X = Cl, Br4/2, I4/2) illustrates generation of polar structures with the use of Λ-shaped basic building units (BBUs). For a compound to belong to a polar space group, dipole moments of individual species must be partially aligned. Incorporation of d(0) early t...

2008
Chang-Mao Hung

The oxidation of ammonia to nitrogen by selective catalytic oxidation (NH3-SCO) over a bimetallic CuO/CeO2 nanoparticle catalyst at temperatures between 423 and 673K. A bimetallic CuO/CeO2 nanoparticle catalyst was prepared by co-precipitation method at molar ratio of 6:4. This study also considers how the concentration of influent NH3 (C0 = 800 ppm), the space velocity (GHSV = 92000/hr), the r...

Journal: :Journal of the American Chemical Society 2006
Constantin Czekelius Jillian Hafer Zachary J Tonzetich Richard R Schrock Ronald L Christensen Peter Müller

This paper reports the synthesis of polyene oligomers ("oligoenes") that contain up to 15 double bonds that are identical to the "all five-membered ring" species formed through cyclopolymerization of diisopropyldipropargylmalonate. The oligoenes contain an isopropylidene unit at each end. The isolated oligoenes range from the "dimer" (a pentaene, (E)-di-1,2-[1-(2-methyl-propenyl)-4,4-di-iso-pro...

B. Surendra Babu G. V. S. S. Sharma P. Srinivasa Rao

Process tolerancing based on the process capability studies is the optimistic and pragmatic approach of determining the manufacturing process tolerances. On adopting the define–measure–analyze–improve–control approach, the process potential capability index (C p) and the process performance capability index (C pk) values of identified process characteristics of connecting rod ...

Journal: :Chemical communications 2008
Ben Conway David V Graham Eva Hevia Alan R Kennedy Jan Klett Robert E Mulvey

The new synergic base [PMDETA.K(TMP)(Et)Zn(Et)] selectively zincates 4-(dimethylamino)pyridine at the 2-position and 4-methoxypyridine at the 3-position, to afford bimetallic potassium pyridylzinc complexes each displaying a novel, but remarkably different, structure.

Journal: :Chemical communications 2006
Aaron M Brown Maxim V Ovchinnikov Charlotte L Stern Chad A Mirkin

The reaction of a heteroligated Rh(I) bimetallic macrocycle with rigid ditopic ligands (1,4-dicyanobenzene, 4-4'-dicyanobiphenyl, or dipyridyl terminated salen ligand 5) results in the formation of tetrametallic rectangular box complexes.

Journal: :Chemical communications 2013
Alexandre Hervé Nicolas Garin Pierre Thuéry Michel Ephritikhine Jean-Claude Berthet

Reaction of the linear thorocene with NC(-), N3(-) and H(-) led to the bent derivatives [(Cot)2Th(X)](-) (X = CN, N3) and the bimetallic [{(Cot)2Th}2(μ-H)](-), whereas only [(Cot)2U(CN)](-) could be formed from (Cot)2U.

Journal: :Chemical communications 2016
Chao Li Xiaoshi Hu Xiaobing Lou Qun Chen Bingwen Hu

Bimetallic coordination polymers (BiCPs) with Zn and Co were synthesized and applied as anode materials. When the rate was increased to 2 A g(-1), a capacity of 622 mA h g(-1) after 500 cycles could still be maintained.

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