Unravelling the cooperative role of lattice strain on MnO2/TiO2 and MnO2/ZnO catalysts for fast decomposition of hydrogen peroxide

2021 ◽  
Author(s):  
Santhanaraj Daniel ◽  
Selvamani Arumugam ◽  
RajaKumar KANTHAPAZHAM ◽  
Ricky Joseph Nicholson ◽  
Giridhar Sridhar ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Metal Oxide ◽  
Dft Calculations ◽  
Lattice Strain ◽  
Experimental Methods ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts ◽  
Fast Decomposition

The influence of lattice strain on metal and metal oxide catalysts has been widely investigated by DFT calculations. However, it is still hard to prove by experimental methods. In the...

Ion-selective electrode and enzyme sensors for flow-type environmental analysis

1991 ◽  
Vol 56 (1) ◽  
pp. 178-191 ◽  
Author(s):  
J. D. R. Thomas
Keyword(s):  
Hydrogen Peroxide ◽  
Metal Oxide ◽  
Environmental Analysis ◽  
Lead Dioxide ◽  
Membrane System ◽  
Electrochemical Analysis ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts ◽  
Catalytic Membrane ◽  
Wide Range

Illustrative examples from researches in the author’s laboratories are given of potentiometric ion-selective electrodes (ISEs) and catalytic membrane amperometric electrodes suitable for environmental analysis. The uses of sulphide ISEs are demonstrated for monitoring the activities of sulphate-reducing bacteria, in effluent analysis for sulphide, and in process/effluent analysis for sulphide, thiols and polysulphides. Diquat and paraquat ISEs are discussed in relation to their optimisation in terms of appropriate crown ether and ion-pairing agents, together with prospects of their uses. Catalytic membrane systems for use in electrochemical analysis may be based on metal oxide catalysts or enzymes. The best of the new metal oxide catalysts for hydrogen peroxide analysis in association with an oxygen electrode is based on manganese dioxide and offers an alternative to lead dioxide and catalase. An alternative membrane system for use with a platinum electrode is peroxidase in association with a mediator in order to permit a low potential approach for hydrogen peroxide sensing. Hydrogen peroxide is a product of many oxidase catalysed reactions and its electrochemical detection permits the analysis of a wide range of substrates, illustrated here for glucose in various food products and hypoxanthine in the spoilage of fish meats.

Determining the role of oxygen vacancies in palmitone selectivity and coke formation over acid metal oxide catalysts for the ketonization of methyl palmitate

2021 ◽  
pp. 118405
Author(s):  
Adisak Guntida ◽  
Thanwarat Rattanachartnarong ◽  
Bunjerd Jongsomjit ◽  
Tawan Sooknoi ◽  
Patcharaporn Weerachawanasak ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Methyl Palmitate ◽  
Oxygen Vacancies ◽  
Coke Formation ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts

Catalyst Design Based on DFT Calculations: Metal Oxide Catalysts for Gas Phase NO Reduction

2014 ◽  
Vol 118 (25) ◽  
pp. 13617-13622 ◽  
Author(s):  
Xuesen Du ◽  
Xiang Gao ◽  
Wenshuo Hu ◽  
Jinpin Yu ◽  
Zhongyang Luo ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Dft Calculations ◽  
Gas Phase ◽  
No Reduction ◽  
Catalyst Design ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts
Sign in / Sign up

Export Citation Format

Share Document