Mg–Al hydrotalcite-like compounds containing iron-phthalocyanine complex: effect of aluminum substitution on the complex adsorption features and catalytic activity

2005 ◽  
Vol 28 (1-4) ◽  
pp. 147-158 ◽  
Author(s):  
César A.S. Barbosa ◽  
Patrícia M. Dias ◽  
Ana Maria da C. Ferreira ◽  
Vera R.L. Constantino
Keyword(s):  
Catalytic Activity ◽  
Iron Phthalocyanine ◽  
Complex Effect ◽  
Phthalocyanine Complex ◽  
Complex Adsorption ◽  
Aluminum Substitution

scholarly journals A pyrolysis-free path toward superiorly catalytic nitrogen-coordinated single atom

2019 ◽  
Vol 5 (8) ◽  
pp. eaaw2322 ◽  
Author(s):  
Peng Peng ◽  
Lei Shi ◽  
Feng Huo ◽  
Chunxia Mi ◽  
Xiaohong Wu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Temperature ◽  
Oxygen Reduction ◽  
Structural Changes ◽  
Carbon Matrix ◽  
Single Atom ◽  
Synthetic Approach ◽  
Iron Phthalocyanine ◽  
Practical Applications ◽  
Single Atoms

Nitrogen-coordinated single-atom catalysts (SACs) have emerged as a frontier for electrocatalysis (such as oxygen reduction) with maximized atom utilization and highly catalytic activity. The precise design and operable synthesis of SACs are vital for practical applications but remain challenging because the commonly used high-temperature treatments always result in unpredictable structural changes and randomly created single atoms. Here, we develop a pyrolysis-free synthetic approach to prepare SACs with a high electrocatalytic activity using a fully π-conjugated iron phthalocyanine (FePc)–rich covalent organic framework (COF). Instead of randomly creating Fe-nitrogen moieties on a carbon matrix (Fe-N-C) through pyrolysis, we rivet the atomically well-designed Fe-N-C centers via intermolecular interactions between the COF network and the graphene matrix. The as-synthesized catalysts demonstrate exceptional kinetic current density in oxygen reduction catalysis (four times higher than the benchmark Pt/C) and superior power density and cycling stability in Zn-air batteries compared with Pt/C as air electrodes.

Preparation of iron phthalocyanine complex bearing four tetraazamacrocycles as a precursor for oxidation catalyst with two catalytic sites

2009 ◽  
Vol 13 (06) ◽  
pp. 747-752
Author(s):  
Ümit İşci ◽  
Ayşe Gül Gürek ◽  
Vefa Ahsen ◽  
Alexander B. Sorokin
Keyword(s):  
Oxidation Catalyst ◽  
Iron Phthalocyanine ◽  
Reaction Conditions ◽  
Phthalocyanine Complex ◽  
Catalytic Sites

The synthesis of the iron phthalocyanine bearing four fused tetraazamacrocycles starting from N,N',N″,N‴-tetrakis(p-tolylsulfonyl)triethylenetetraamine and 1,2-dibromo-4,5-bis(bromomethyl)benzene is reported. The exchange of protecting tosyl groups by acetyl groups was necessary to obtain iron phthalocyanine. The efficiency of iron phthalocyanine as oxidation catalyst was tested for the practically important oxidation of 2,3,6-trimethylphenol (TMP) at different reaction conditions.

scholarly journals Close-Stacking of Iron-Oxo-Based Double-Decker Complex on Graphite Surface Achieved High Catalytic CH4 Oxidation Activity Comparable to that of Methane Monooxygenases

2021 ◽  
Author(s):  
Yasuyuki Yamada ◽  
Kentaro Morita ◽  
Takuya Sugiura ◽  
Yuka Toyoda ◽  
Nozomi Mihara ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methane Oxidation ◽  
Graphite Surface ◽  
Iron Phthalocyanine ◽  
Ch4 Oxidation ◽  
Oxidation Activity ◽  
Phthalocyanine Complex ◽  
Double Decker ◽  
Dinuclear Iron

<div><div><div><p>Herein, we report that the close-stacking of a double-decker-type dinuclear iron phthalocyanine complex on a graphite surface is effective for achieving high methane oxidation activity, comparable to those of certain MMOs, in an aqueous solution. </p></div></div></div>

scholarly journals Close-Stacking of Iron-Oxo-Based Double-Decker Complex on Graphite Surface Achieved High Catalytic CH4 Oxidation Activity Comparable to that of Methane Monooxygenases

2021 ◽  
Author(s):  
Yasuyuki Yamada ◽  
Kentaro Morita ◽  
Takuya Sugiura ◽  
Yuka Toyoda ◽  
Nozomi Mihara ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methane Oxidation ◽  
Graphite Surface ◽  
Iron Phthalocyanine ◽  
Ch4 Oxidation ◽  
Oxidation Activity ◽  
Phthalocyanine Complex ◽  
Double Decker ◽  
Dinuclear Iron

<div><div><div><p>Herein, we report that the close-stacking of a double-decker-type dinuclear iron phthalocyanine complex on a graphite surface is effective for achieving high methane oxidation activity, comparable to those of certain MMOs, in an aqueous solution. </p></div></div></div>

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