Recently, researchers at Tour University of Rice University in the United States successfully developed a lower cost fuel cell catalyst solution. The catalyst utilizes laser to combine graphene with various kinds of metal nano-particles, and the metal laser oxide obtained by the combination is embedded in the graphene body. The catalyst can maintain high activity in the electrochemical redox reaction and the metal load The rate is less than 1 at% (atomic percent). In summary, such laser graphene can be used as a fuel cell catalyst instead of expensive platinum.
In addition, the researchers published papers published in the ACS Nano Magazine mentioned that nanoparticles can form different forms of metal oxides or metal sulfides by adding different additives, so that the compounds can be used in other hydrogen production reactions Electrocatalytic activity remains active.
Last year, JamesTour and his colleagues co-invented laser graphene. The so-called laser graphene is a surface of the polyimide film formed by exposure to porous graphene film material. Initially, the researchers used the purchased polyimide sheet to make laser graphene. Later, they dipped boron into liquid polyimide to create laser graphene to increase its ability to store charges, making it a very effective supercapacitor.
In a recent experiment, the experimenter fused three different concentrations of cobalt solution with iron or molybdenum metal salts. Each mixture was condensed to form a thin sheet, which was then irradiated with an infrared laser and then irradiated at 750 Celsius temperature with argon heating.
The MO-LIGs produced by the above process are uniformly distributed in the graphene together with 10 nm of metal particles. Experiments show that these substances can catalyze the oxygen reduction reaction, which is also the most basic chemical reaction in fuel cells. The hydrogen production process can be used as a catalyst for the redox reaction by adding some sulfur to the metal. Hydrogen production is essentially a process of catalyzing hydrogen to hydrogen.
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