Electrocatalytic oxidation of alcohols on single gold particles in highly ordered SiO2 cavities

2013 ◽  
Vol 109 ◽  
pp. 546-553 ◽  
Author(s):  
Na Li ◽  
Qun Zhou ◽  
Shu Tian ◽  
Hong Zhao ◽  
Xiaowei Li ◽  
...  
Keyword(s):  
Electrocatalytic Oxidation ◽  
Gold Particles ◽  
Oxidation Of Alcohols

Nitrite Sensors Based on Gold Particles and Polyaniline Modified Electrodes

2011 ◽  
Vol 239-242 ◽  
pp. 2466-2469
Author(s):  
Yu Cui Hao ◽  
Yan Juan Liu ◽  
Bin Hao
Keyword(s):  
Electrochemical Method ◽  
Electrocatalytic Oxidation ◽  
Modified Electrodes ◽  
High Sensitivity ◽  
Carbon Electrode ◽  
Oxidation Peak ◽  
Modified Glassy Carbon Electrode ◽  
Gold Particles ◽  
Oxidation Peak Current ◽  
Experimental Parameters

A nitrite sensor based on a gold particles/polyaniline modified glassy carbon electrode (Au/PAni/GCE) was devoped by electrochemical method. The electrocatalytic oxidation of nitrite at Au/PAni/GCE was studied by cyclic voltammetry. The experimental parameters were optimized, and a voltammetric method for determining nitrite was developed. In phosphate buffered solution(PBS) of pH 3.0, the oxidation peak current of nitrite is proportional to the concentration of nitrite over the range of 4.0×10-7～5.0×10-3mol/L with the detection limit of 2.0×10-7mol/L (r=0.9992). The presented methods of determing nitrite exhibited high sensitivity and good reproducibility.

Electrocatalytic oxidation of alcohols by a carbon-supported Rh porphyrin

2012 ◽  
Vol 48 (36) ◽  
pp. 4353 ◽  
Author(s):  
Shin-ichi Yamazaki ◽  
Masaru Yao ◽  
Naoko Fujiwara ◽  
Zyun Siroma ◽  
Kazuaki Yasuda ◽  
...  
Keyword(s):  
Electrocatalytic Oxidation ◽  
Oxidation Of Alcohols

Review—Electrocatalytic Oxidation of Alcohols Using Chemically Modified Electrodes: A Review

2020 ◽  
Vol 167 (13) ◽  
pp. 136508 ◽  
Author(s):  
Rijo Rajeev ◽  
Bhavya Sharma ◽  
Agnus T. Mathew ◽  
Louis George ◽  
Sudhakar Y N ◽  
...  
Keyword(s):  
Electrocatalytic Oxidation ◽  
Modified Electrodes ◽  
Chemically Modified Electrodes ◽  
Chemically Modified ◽  
Oxidation Of Alcohols

Eco-friendly electrocatalytic oxidation of alcohols on a novel electro generated TEMPO-functionalized MCM-41 modified electrode

2015 ◽  
Vol 17 (2) ◽  
pp. 991-1000 ◽  
Author(s):  
Babak Karimi ◽  
Mohammad Rafiee ◽  
Saber Alizadeh ◽  
Hojatollah Vali
Keyword(s):  
Transition Metal ◽  
Selective Oxidation ◽  
Modified Electrode ◽  
Electrocatalytic Oxidation ◽  
Metal Catalysts ◽  
Transition Metal Catalysts ◽  
Free System ◽  
Highly Efficient ◽  
Oxidation Of Alcohols ◽  
Mcm 41

The development of a highly efficient and waste-free system for the selective oxidation of alcohols without using expensive transition metal catalysts using a novel electrogenerated TEMPO-functionalized MCM-41 modified electrode is described.

Electrocatalytic oxidation of alcohols using substituted N-hydroxyphthalimides as catalysts

1998 ◽  
Vol 44 (2-3) ◽  
pp. 385-393 ◽  
Author(s):  
Karine Gorgy ◽  
Jean-Claude Lepretre ◽  
Eric Saint-Aman ◽  
Cathy Einhorn ◽  
Jacques Einhorn ◽  
...  
Keyword(s):  
Electrocatalytic Oxidation ◽  
Oxidation Of Alcohols

scholarly journals Electrocatalytic Oxidation of Alcohols, Tripropylamine, and DNA with Ligand-Free Gold Nanoclusters on Nitrided Carbon

2016 ◽  
Vol 3 (12) ◽  
pp. 2100-2109 ◽  
Author(s):  
Huiqin Yao ◽  
Ben Liu ◽  
Islam M. Mosa ◽  
Itti Bist ◽  
Jie He ◽  
...  
Keyword(s):  
Electrocatalytic Oxidation ◽  
Gold Nanoclusters ◽  
Free Gold ◽  
Ligand Free ◽  
Oxidation Of Alcohols

scholarly journals Metal-Support Synergy of Supported Gold Nanoclusters in Selective Oxidation of Alcohols

Catalysts ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 107
Author(s):  
Lu Liu ◽  
Huayin Li ◽  
Yuan Tan ◽  
Xingkun Chen ◽  
Ronghe Lin ◽  
...  
Keyword(s):  
Particle Size ◽  
Aerobic Oxidation ◽  
Gold Nanoclusters ◽  
Gold Catalysts ◽  
Photoelectron Spectra ◽  
Base Property ◽  
Gold Particles ◽  
X Ray ◽  
Oxidation Of Alcohols ◽  
Metal Support

Gold catalysts have been reported to exhibit good performance in aerobic oxidation of alcohols, but the intrinsic origin of the catalytic reactivity is still illusive. The catalyst preparation method, the morphology of the gold particles, and even the support might be key factors that determine the activity. Here, we prepared a series of gold catalysts with different supports, i.e., the hydrotalcite (HT), ZnO, MgO, Al2O3, and SiO2, by using the atomically controlled Au25 nanoclusters (NCs) as the gold precursor. The characterization results of the X-ray diffraction (XRD), UV-vis and transmission electron microscopy (TEM) show that the gold particles were mostly uniformly distributed on the supports, with a mean particle size within 3 nm. In aerobic oxidation of benzyl alcohol, the MgAl-HT- and Al2O3-supported Au25 NCs display good performances, with turnover frequency (TOF) values of ~2927 and 2892 h−1, respectively, whereas the SiO2-, MgO-, and ZnO-supported analogues show much inferior activity. The high resolution TEM and X-ray photoelectron spectra (XPS) results suggest that the interactions between gold and the supports in different samples are differing, which influences the morphology and the nature of gold. Our results further point to the importance of acid-base property of the support and the metal-support synergy rather than the gold particle size alone in achieving high-performance in selective alcohol oxidation. Moreover, this work provided a good way to design gold catalysts with controllable sizes that is crucial for understanding the reaction process in aerobic oxidation of alcohol.

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