scholarly journals Electrocatalytic Properties of a BaTiO3/MWCNT Composite for Citric Acid Detection

Catalysts ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 49
Author(s):  
Siraprapa Pitiphattharabun ◽  
Nicha Sato ◽  
Gasidit Panomsuwan ◽  
Oratai Jongprateep
Keyword(s):  
Citric Acid ◽  
Electrocatalytic Activity ◽  
Combustion Method ◽  
Oxidation Reactions ◽  
Solution Combustion ◽  
Solution Combustion Method ◽  
Multiwalled Carbon ◽  
Submicron Scale ◽  
Good Potential ◽  
Voltammetric Measurements

Although barium titanate (BaTiO3) shows prominent dielectric properties for fabricating electronic devices, its utilization in electrochemical applications is limited. Thus, this study examined the potential of a BaTiO3-based composite in the detection of a food additive, i.e., citric acid. First, a submicron-scale BaTiO3 powder was synthesized using the solution combustion method. Then, a BaTiO3/multiwalled carbon nanotube (MWCNT) composite was hydrothermally synthesized at BaTiO3:MWCNT mass ratios of 1:1 and 2:1. This composite was used as a working electrode in a nonenzymatic sensor to evaluate its electrocatalytic activity. Cyclic voltammetric measurements revealed that the BaTiO3/MWCNT composite (2:1) exhibited the highest electrocatalytic activity. Reduction reactions were observed at applied voltages of approximately 0.02 and −0.67 V, whereas oxidation reactions were detected at −0.65 and 0.47 V. With acceptable sensitivity, decent selectivity, and fair stability, the BaTiO3/MWCNT composite (2:1) showed good potential for citric acid detection.

scholarly journals Synthesis of Eu2+ and Dy3+ Doped Strontium Aluminates and their Properties

2016 ◽  
Vol 721 ◽  
pp. 311-315
Author(s):  
Laura Rozenberga-Voska ◽  
Jānis Grabis ◽  
Aleksejs Zolotarjovs
Keyword(s):  
Phase Composition ◽  
Citric Acid ◽  
Specific Surface ◽  
Crystallite Size ◽  
Surface Area ◽  
Luminescent Properties ◽  
Combustion Method ◽  
Strontium Aluminate ◽  
Solution Combustion ◽  
Solution Combustion Method

Strontium aluminate phosphors were synthesized by the solution combustion method using citric acid, urea or glycine as reducing agent and europium and dysprosium as dopants. The content of both dopants was in the range of 1 – 2 mol%. Dependence of phase composition, crystallite size and specific surface area on calcinations temperature, used reducing agents and dopants were determined. Luminescent properties of the calcinated at 1300 °C powders contained SrAl2O4 (90 %) and Sr4Al24O25 (10%) phases with crystallite size of 80 nm were determined.

Photocatalytic decolorization of methylene blue using immobilized ZnO nanoparticles prepared by solution combustion method

2012 ◽  
Vol 44 (1-3) ◽  
pp. 174-179 ◽  
Author(s):  
Abbas Rezaee ◽  
Hossein Masoumbeigi ◽  
Reza Darvishi Cheshmeh Soltani ◽  
Ali R. Khataee ◽  
Seyedjamalodin Hashemiyan
Keyword(s):  
Methylene Blue ◽  
Zno Nanoparticles ◽  
Combustion Method ◽  
Solution Combustion ◽  
Solution Combustion Method ◽  
Photocatalytic Decolorization

scholarly journals Mn-Doped ZnO Nanoparticles Prepared by Solution Combustion Method

2014 ◽  
Vol 12 (0) ◽  
pp. 283-288 ◽  
Author(s):  
Murugesan Silambarasan ◽  
Shanmugam Saravanan ◽  
Tetsuo Soga
Keyword(s):  
Zno Nanoparticles ◽  
Combustion Method ◽  
Solution Combustion ◽  
Solution Combustion Method ◽  
Doped Zno ◽  
Mn Doped
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