12 Questions 5 Answers 0 Followers
Questions related from Marco Antonio Uscanga Olea
Dear all! How ionic migration works to be able to close an electric circuit when electrodes (let's say platinum or graphite) are immersed in a salt aqueous solution and there is no water...
24 November 2024 7,136 3 View
I am coupling TiO2 (which is full of OH groups) with graphene oxide (which also has a lot of OH groups). Therefore, by means of a condensation reaction, I am expecting that a bond of C-O-Ti...
18 August 2024 8,724 3 View
Dear all! I am looking for a brief and general explanation of the processes brought about by a metal Cation Yn-1 to create Oxygen vacancies when it is incorporated in the crystal structure of a...
07 August 2024 6,593 1 View
Dear all! I got the Ramman spectra of Bismuth Tungstate (Bi2WO6) and Iron Oxide (Fe2O3) modified Bismuth Tungstate (which is supposed to have oxygen vacancies) synthesized by means of...
05 August 2024 8,599 0 View
Dear all! Oxygen vacancies do raise negatively the Fermi level by increasing the negative charge in the semiconductor crystal structure. In the case of n-type semiconductors, I wonder if this...
31 July 2024 8,928 2 View
Dear all: I am modifying Bismuth Tungstate with Hematite (Fe2O3), so I would like to know about how much Iron(+3) can form a solid solution in a Bismuth Oxide matrix. Best wishes Marco
30 July 2024 2,653 1 View
Dear colleagues Hydrothermal synthesis of semiconductors is reported to be a successful method in lab scale , I would like to know if the hydrothermal synthesis results obtained with a 100ml...
23 February 2024 1,741 0 View
Dear all! I think the main functions of pores are to avoid the contact of the two different liquids and just allow the passage of ions, so I think the pore size should be small enough to...
02 October 2023 6,109 2 View
Dear all: I want to put a graphene oxide film on top of a BDD to make the thermal reduction of that GO film. Therefore, I need to know what is the maximal temperature BDD electrodes can...
21 April 2023 7,783 2 View
Dear colleagues: When metal oxides and graphene oxides are reduced electrochemically, the more negative the reduction potential, the more black they get. In addition, what is the relationship...
21 July 2022 4,902 3 View
Dear colleagues: I need the electrical conductivity or resistivity of the following photocatalytic semiconductors and the following Heterostructures (made of two or more semiconductors joined...
07 July 2020 2,337 1 View
Dear all: If you try to modify metal oxides with bidimensional carbon materials such as graphene, graphene oxide or reduced graphene oxide, I would like to know whether carbon sp2 or carbon sp3...
01 January 1970 3,714 1 View
