نتایج جستجو برای: oxidation reduction

تعداد نتایج: 578942  

Journal: :Chemical communications 2015
Georg Nickerl Irena Senkovska Stefan Kaskel

Dihydro-1,2,4,5-tetrazine-3,6-dicarboxylate was introduced into the chemically stable UiO-66 structure by a postsynthetic linker exchange reaction to create an optical sensor material for the detection of oxidative agents such as nitrous gases. The incorporated tetrazine unit can be reversibly oxidized and reduced, which is accompanied by a drastic colour change from yellow to pink and vice ver...

2015
Qipeng Chai Wenqin Li Jingchuan Liu Zhiyuan Geng He Tian Wei-hong Zhu

Dye-sensitized solar cell (DSSC) is considered as a feasible route to the clean and renewable energy conversion technique. The commercial application requires further enhancements on photovoltaic efficiency and simplification on the device fabrication. For avoiding the unpreferable trade-off between photocurrent (JSC) and photovoltage (VOC), here we report the molecular engineering and comprehe...

Journal: :European journal of biochemistry 1989
S Ghisla V Massey

Flavoproteins are a class of enzymes catalyzing a very broad spectrum of redox processes by different chemical mechanisms. This review describes the best studied of these mechanisms and discusses factors possibly governing reactivity and specificity.

Journal: :Chemical communications 2014
Jing Han Ying Zhuo Yaqin Chai Ruo Yuan

A bifunctional probe (PTC-Tb) which acts as not only a well-defined and stable electrochemical redox molecule but also as a highly efficient co-reactant of an electrochemiluminescent oxygen-peroxydisulfate system was firstly synthesized and applied to the construction of dual-response aptasensors for thrombin detection.

Journal: :Chemical communications 2007
Atsutoshi Yokoyama Takahiko Kojima Kei Ohkubo Shunichi Fukuzumi

The reaction of a saddle-distorted Mo(v)-dodecaphenylporphyrin complex and a Keggin-type polyoxometalate gives a discrete and nanosized molecule, [{Mo(DPP)(O)}(2)(H(2)SiW(12)O(40))], which involves direct coordination between the Mo(v) centers and terminal oxo groups of the polyoxometalate and exhibits excellent stability in solution to show reversible multi-redox processes.

Journal: :Chemical communications 2015
Masaichi Saito Marisa Nakada Takuya Kuwabara Mao Minoura

Reduction of THF-stabilized plumbacyclopentadienylidene with lithium afforded dilithioplumbole. On the other hand, oxidation of the dilithioplumbole provided the starting plumbacyclopentadienylidene. This is the unprecedented example of a reversible interconversion between group 14 M(II) and its dianionic species bearing organic substituents.

Journal: :Chemical communications 2015
Jie Yu Qimin Yan Wei Chen Anubhav Jain Jeffrey B Neaton Kristin A Persson

We present a first-principles study of MnNiO3, a promising oxygen-evolution photocatalyst. Using density functional theory with the PBE + U functional and the screened hybrid functional of Heyd, Scuseria, and Ernzerhof (HSE), we compute and analyze the ground-state geometry and electronic structure. We find that MnNiO3 is a ferrimagnetic semiconductor with an indirect band gap, consistent with ...

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