Characteristic mechanisms of the homogeneous and heterogeneous oxidation of aromatic amines with transition metaloxalate complexes

Zaki, Ahmed B.; Elsheikh, Mohamed; Evans, John; El‐Safty, Sherif A.

doi:10.1016/s0277-5387(00)00401-0

Cited by 45 publications

(30 citation statements)

References 34 publications

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“…In the case of ophen, the difference was more pronounced, in line with earlier observations regarding the oxidation rates of these ions. 29 The results, nevertheless, indicate that most of the oxidation occurs during the ESI process.…”

Section: Complex Formationmentioning

confidence: 91%

“…Oxidation of the para isomer occurs faster than oxidation of the ortho isomer. 29 The oxidation rates of amines are also greatly affected by the temperature. Radical cations, too, are relatively easily formed in the oxidation.…”

Section: Complex Formationmentioning

confidence: 99%

“…The aromatic nature of the ions stabilizes the radical cations. 29,30 Suggested structures of the oxidation products are presented in Fig. 4.…”

Section: Complex Formationmentioning

confidence: 99%

See 2 more Smart Citations

Noncovalent complex formation of tetratosylated resorcarene with aromatic, aliphatic, and cyclic alkyl ammonium ions: a mass spectrometric study of complex properties

Ventola

Pirskanen

Vainiotalo

2005

Rapid Comm Mass Spectrometry

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The ability of tetratosylated resorcarene to form complexes with aromatic ammonium ions was investigated by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry. The formation of noncovalent complexes, [1þguest] þ and, as observed with singly charged aromatic anilinium and phenylene aminoammonium guests. Comparison of the complexation efficiencies of the aromatic and aliphatic ammonium ions showed the importance of proton affinity of conjugate amines in complex formation. In collision-induced dissociation experiments, gas-phase stability was found to be lower for complexes formed with aromatic ions and this behavior was not found to depend on the proton affinity of conjugate amines. Fast oxidation of the para and ortho aminoammonium ions and complexation of these ions with tetratosylated resorcarene was observed.

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Section: Complex Formationmentioning

confidence: 91%

Section: Complex Formationmentioning

confidence: 99%

See 1 more Smart Citation

Noncovalent complex formation of tetratosylated resorcarene with aromatic, aliphatic, and cyclic alkyl ammonium ions: a mass spectrometric study of complex properties

Ventola

Pirskanen

Vainiotalo

2005

Rapid Comm Mass Spectrometry

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“…The amount of research work on semiconductor photoenergy processes has grown exponentially. A 5th International Conference on Advanced Engineering Materials and Technology (AEMT 2015) number of devices using TiO 2 for solar energy conversion, such as solar cells or hotocatalytic systems have been developed for the past four decades [14][15][16]. This semiconductor has been widely considered as photocatalyst due to its high photocatalytic activity, photostability, and non-toxicity.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Characteristic of Fe-doped Tio2 with Phenol

Weng¹,

Zhang²,

Huang³

et al. 2015

Proceedings of the 2015 International Conference on Advanced Engineering Materials and Technology

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Abstract. Fe doped TiO 2 particles were synthesized by sol-gel method. This gel was dried at 70 ˚C during 2 hours and afterwards was calcined at 450 ˚C during 4 h. Under calcinations at 450 ˚C (4 h), catalyst particle with an average diameter around 59 nm and monophasic anatase structure were obtained. The 0.3wt% Fe/TiO 2 catalyst behaved as efficient and stable catalyst for the photodegradation of phenol solution. At the experimental conditions of initial phenol solution at 10 mg/L, initial pH of the phenol solution at 6.0, UV lamp at 20 W, catalysts concentration at 0.5 g/L , the COD removal of 99 % could be achieved after 240 min of photodegradation reaction.

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“…The amount of research work on semiconductor photoenergy processes has grown exponentially. A number of devices using TiO 2 for solar energy conversion, such as solar cells or hotocatalytic systems have been developed for the recent years [14][15][16]. This semiconductor has been widely considered as photocatalyst due to its high photocatalytic activity, photostability, and non-toxicity.…”

Section: Introductionmentioning

confidence: 99%

Preparation of the 2,4-dichlorophenol solution of Ce-doped Tio2 and its photocatalytic activity

Weng¹,

Chen²,

Qiu³

2015

Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering

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Abstract. Ce doped TiO 2 catalyst was synthesized by sol-gel method. This gel was dried at 70 ˚C during 2 hours and afterwards was calcined at 500 ˚C for 4 h. Then, the anatase TiO 2 catalyst power were obtained. The 0.3wt% Ce/TiO 2 catalyst is efficient and stable catalyst for the photodegradation on the 2,4-DCP solution. At the experimental conditions of initial 2,4-DCP solution at 10 mg/L, UV lamp at 20 W, catalysts concentration at 0.5 g/L , the mineralization ratio at 98.14 % could be achieved after 600 min of photodegradation reaction. And the Ce/TiO 2 catalyst also showed photodegradation ability on 2,4-DCP unber simulate solar light , the mineralization ratio at 55.23 % could be achieved after 600 min of solar photodegradation reaction.

show abstract

Characteristic mechanisms of the homogeneous and heterogeneous oxidation of aromatic amines with transition metaloxalate complexes

Cited by 45 publications

References 34 publications

Noncovalent complex formation of tetratosylated resorcarene with aromatic, aliphatic, and cyclic alkyl ammonium ions: a mass spectrometric study of complex properties

Noncovalent complex formation of tetratosylated resorcarene with aromatic, aliphatic, and cyclic alkyl ammonium ions: a mass spectrometric study of complex properties

Photocatalytic Characteristic of Fe-doped Tio2 with Phenol

Preparation of the 2,4-dichlorophenol solution of Ce-doped Tio2 and its photocatalytic activity

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