Characterization of thick tin deposits by autocatalytic reaction and electrochemical investigations of autocatalytic tin electrolytes and their reaction mechanisms

2019 ◽  
Author(s):  
B Schafsteller ◽  
G Ramos ◽  
K Tuna ◽  
S Nelle
Keyword(s):  
Reaction Mechanisms ◽  
Autocatalytic Reaction ◽  
Tin Deposits

scholarly journals A Review on the Catalytic Hydrogenation of Bromate in Water Phase

Catalysts ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 365
Author(s):  
Jose Luis Cerrillo ◽  
Antonio Eduardo Palomares
Keyword(s):  
Catalytic Activity ◽  
Ion Exchange ◽  
Reaction Mechanisms ◽  
Catalytic Reduction ◽  
Environmental Concern ◽  
Chemical Reduction ◽  
Catalyst Stability ◽  
Polluted Water ◽  
Water Composition

The presence of bromate in water sources generates environmental concern due to its toxicity for humans. Diverse technologies, like membranes, ion exchange, chemical reduction, etc., can be employed to treat bromate-polluted water but they produce waste that must be treated. An alternative to these technologies can be the catalytic reduction of bromate to bromide using hydrogen as a reducing agent. In this review, we analyze the research published about this catalytic technology. Specifically, we summarize and discuss about the state of knowledge related to (1) the different metals used as catalysts for the reaction; (2) the influence of the support on the catalytic activity; (3) the characterization of the catalysts; (4) the reaction mechanisms; and (5) the influence of the water composition in the catalytic activity and in the catalyst stability. Based on published papers, we analyze the strength and weaknesses of this technique and the possibilities of using this reaction for the treatment of bromate-polluted water as a sustainable process.

Mo-theoretical characterization of organic reaction mechanisms—VI

Tetrahedron ◽  
1976 ◽  
Vol 32 (14) ◽  
pp. 1705-1711 ◽  
Author(s):  
K. Tatsumi ◽  
Y. Yoshioka ◽  
K. Yamaguchi ◽  
T. Fueno
Keyword(s):  
Reaction Mechanisms ◽  
Organic Reaction ◽  
Theoretical Characterization ◽  
Organic Reaction Mechanisms

Associative desorption of hydrogen isotopologues from copper surfaces: Characterization of two reaction mechanisms

2018 ◽  
Vol 148 (19) ◽  
pp. 194703 ◽  
Author(s):  
Sven Kaufmann ◽  
Quan Shuai ◽  
Daniel J. Auerbach ◽  
Dirk Schwarzer ◽  
Alec M. Wodtke
Keyword(s):  
Reaction Mechanisms ◽  
Copper Surfaces

scholarly journals Influence of Copper Precursor on the Catalytic Transformation of Oleylamine during Cu Nanoparticles Synthesis

2021 ◽  
Author(s):  
Antoine Pesesse ◽  
Sophie Carenco
Keyword(s):  
Copper Nanoparticles ◽  
Reaction Mechanisms ◽  
Direct Impact ◽  
Catalytic Transformation ◽  
Cu Nanoparticles ◽  
Nanoparticles Synthesis

For an optimal use of copper nanoparticles in catalysis, in-depth understanding of the reaction mechanisms and fine characterization of final products are equally relevant. Indeed, both have a direct impact...

Reaction of CH3O2 and HO2: Ab initio characterization of dimer structure and vibrational mode analysis for reaction mechanisms

2005 ◽  
Vol 106 (2) ◽  
pp. 514-525 ◽  
Author(s):  
Xin-Ming Zhou ◽  
Zheng-Yu Zhou ◽  
Qun-Yan Wu ◽  
Abraham F. Jalbout ◽  
Nan Zhang
Keyword(s):  
Ab Initio ◽  
Reaction Mechanisms ◽  
Vibrational Mode ◽  
Mode Analysis ◽  
Dimer Structure

Structural characterization of Ti centres in Ti-silicalite and reaction mechanisms in cyclohexanone ammoximation

1996 ◽  
Vol 32 (1-4) ◽  
pp. 97-106 ◽  
Author(s):  
A. Zecchina ◽  
S. Bordiga ◽  
C. Lamberti ◽  
G. Ricchiardi ◽  
C. Lamberti ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Reaction Mechanisms ◽  
Cyclohexanone Ammoximation

scholarly journals Formation and characterization of a reactive chromium(v)–oxo complex: mechanistic insight into hydrogen-atom transfer reactions

2015 ◽  
Vol 6 (2) ◽  
pp. 945-955 ◽  
Author(s):  
Hiroaki Kotani ◽  
Suzue Kaida ◽  
Tomoya Ishizuka ◽  
Miyuki Sakaguchi ◽  
Takashi Ogura ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Reaction Mechanisms ◽  
Hydrogen Atom Transfer ◽  
Transfer Reactions ◽  
Atom Transfer ◽  
Oxidation Potentials ◽  
Mechanistic Insight ◽  
Atom Transfer Reactions ◽  
Insight Into

Mechanistic insights were gained into hydrogen-atom transfer reactions from benzyl alcohol derivatives with different oxidation potentials to a highly reactive Cr(v)–oxo complex to reveal switching of reaction mechanisms.

scholarly journals Metalloprotein catalysis: structural and mechanistic insights into oxidoreductases from neutron protein crystallography

2021 ◽  
Vol 77 (10) ◽  
Author(s):  
Gabriela C. Schröder ◽  
Flora Meilleur
Keyword(s):  
Radiation Damage ◽  
Reaction Mechanisms ◽  
Protein Crystallography ◽  
Computational Techniques ◽  
Cryo Electron Microscopy ◽  
Structural Probe ◽  
Metal Cofactor ◽  
Neutron Protein Crystallography ◽  
Insight Into

Metalloproteins catalyze a range of reactions, with enhanced chemical functionality due to their metal cofactor. The reaction mechanisms of metalloproteins have been experimentally characterized by spectroscopy, macromolecular crystallography and cryo-electron microscopy. An important caveat in structural studies of metalloproteins remains the artefacts that can be introduced by radiation damage. Photoreduction, radiolysis and ionization deriving from the electromagnetic beam used to probe the structure complicate structural and mechanistic interpretation. Neutron protein diffraction remains the only structural probe that leaves protein samples devoid of radiation damage, even when data are collected at room temperature. Additionally, neutron protein crystallography provides information on the positions of light atoms such as hydrogen and deuterium, allowing the characterization of protonation states and hydrogen-bonding networks. Neutron protein crystallography has further been used in conjunction with experimental and computational techniques to gain insight into the structures and reaction mechanisms of several transition-state metal oxidoreductases with iron, copper and manganese cofactors. Here, the contribution of neutron protein crystallography towards elucidating the reaction mechanism of metalloproteins is reviewed.

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