نتایج جستجو برای: feiii determination

تعداد نتایج: 251385  

Journal: :Angewandte Chemie 2007
Gérard Cahiez Vanessa Habiak Christophe Duplais Alban Moyeux

Significance: The development of iron-catalyzed cross-coupling reactions is an extremely promising field of research, taken into account the importance of this method for current organic synthesis and the multiple problems connected with commonly used Pdand Ni-catalyzed processes. The group of Cahiez reported the first iron-catalyzed alkyl–aryl cross-coupling reaction, suitable for industrial l...

Journal: :Dalton transactions 2005
Brendan P Macpherson Basam M Alzoubi Paul V Bernhardt Manuel Martínez Peter A Tregloan Rudi van Eldik

The effects of pressure and temperature on the energy (Eop) of the metal-to-metal charge transfer (MMCT, FeII-->CoIII) transition of the cyano-bridged complexes trans-[L14CoNCFe(CN)5]- and cis-[L14CoNCFe(CN)5]- (where L14=6-methyl-1,4,8,11-tetraazacyclotetradecan-6-amine) were examined. The changes in the redox potentials of the cobalt and iron metal centres with pressure and temperature were a...

Journal: :Solar RRL 2023

The construction of Z-scheme water splitting systems is an effective approach toward harvesting a wide portion the solar light spectrum; however, success has often depended on property photocatalyst surfaces. This drawback typified by limited choice efficient H2-evolution photocatalysts (e.g., Rh-doped SrTiO3) for using Fe3+/Fe2+ redox couple. majority visible-light-responsive materials show lo...

Journal: :Crystal Growth & Design 2021

The ditopic molecule 3-(1,3,5-trimethyl-4-1H-pyrazolyl)acetylacetone (HacacMePz) combines an acetylacetone group suitable for deprotonation and O,O? coordination to a Pearson hard cation with softer N-donor site. Both binding modes were employed individually: the pyrazolyl moiety was coordinated ZnII, HgII, AgI, trivalent iron tris-chelating complex [Fe(acacMePz)3] isolated. CuII derivative sho...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده شیمی 1392

چکیده در بخش اول این پروژه دو روش میکرواستخخرا به نامهای میکرواسخخرا امولسیونی با کمک اموا فراصتتتو 1 و میکرواستتتخخرا مای – مای با کمک هوا 2 ، به عنوان دو روش میکرواستتتخخرا بدون حلال پخشکننده 3 ، برای اسخخرا برخی هیتدروکربتنهای آروماتیتک حلقوی 4 از نمونتههای آبتی بهکار گرفخه و پارامخرهای موثری همچون نوع حلال اسختتتتخرا کننده، حجم حلال اسخخرا کننده، میزان نمک، زمان تابش اموا فراصتو ، تددا...

2016
Andreas Nenning Alexander K. Opitz Christoph Rameshan Raffael Rameshan Raoul Blume Michael Hävecker Axel Knop-Gericke Günther Rupprechter Bernhard Klötzer Jürgen Fleig

The oxygen exchange activity of mixed conducting oxide surfaces has been widely investigated, but a detailed understanding of the corresponding reaction mechanisms and the rate-limiting steps is largely still missing. Combined in situ investigation of electrochemically polarized model electrode surfaces under realistic temperature and pressure conditions by near-ambient pressure (NAP) XPS and i...

Journal: :The Biochemical journal 1998
C Schou M H Christensen M Schülein

The major cellobiose dehydrogenase (oxidase) (CBDH) secreted by the soft-rot thermophilic fungus Humicola insolens during growth on cellulose has been isolated and purified. It was shown to be a haemoflavoprotein with a molecular weight of 92 kDa and a pI of 4.0, capable of oxidizing the anomeric carbon of cellobiose, soluble cellooligosaccharides, lactose, xylobiose and maltose. Possible elect...

2017
Shichuan Chen Zhixiong Kang Xiaodong Zhang Junfeng Xie Hui Wang Wei Shao XuSheng Zheng Wensheng Yan Bicai Pan Yi Xie

Identification of active sites in an electrocatalyst is essential for understanding of the mechanism of electrocatalytic water splitting. To be one of the most active oxygen evolution reaction catalysts in alkaline media, Ni-Fe based compounds have attracted tremendous attention, while the role of Ni and Fe sites played has still come under debate. Herein, by taking the pyrrhotite Fe7S8 nanoshe...

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