NiFeMo-P-C catalyst synthesis and performance (IMAGE)
Caption
Upper diagram: The NiFeMo-P-C catalyst is synthesized by mixing an aqueous solution of metal salts and sodium hypophosphite, a sodium salt of a phosphorus-containing acid, with treated nickel foam and subjecting the solution to a simple, low-cost hydrothermal reaction that increases the temperature and pressure of the solution in the reaction vessel. The intermediate product [middle scanning electron microscope (SEM) image] is then loaded with alloy and metal phosphide through H2/Ar (hydrogen/argon) thermal reduction (adding electrons to the metal ions using hydrogen and heat) to create the final catalyst product (right SEM image). Lower graphs: Graphs depicting the linear sweep voltammetry, or current density of the working electrode in the hydrogen evolution reaction (left graph) and oxygen evolution reaction (right graph) at different potentials, depending on the catalyst used. NiFeMo-P-C performance is labeled in red.
Credit
Nano Research Energy, Tsinghua University Press
Usage Restrictions
Credit must be given to the creator.
License
CC BY