Chemists at Rice University have developed a way to embed metal nanoparticles with a unique graphene to create useful fuel cell catalysts and to serve other applications. Laser-induced graphene was last year's Rice lab chemist James Thour is a porous, graphene film with a flexible surface made by exposing a common polyimide plastic to commercial laser scribes. Researchers have discovered that this is a substance that increases the activity of metal products. The study is published on the ACS Nano. Scanning Electron Microscopy of Rice University, Rice showed cobalt-impregnated metal oxide-laser induced graphene. This material is an ideal material for replacing platinum or other precious metals as fuel cell catalysts. Picture ratio = 10 microns. Image Source: Rice University. The researchers call this material the metal oxide-laser-induced graphene material (MO-LIG), a new catalyst that can replace expensive platinum and other metal fuel cells to convert hydrogen and oxygen into water and Electric function. Tour notes: "The advantage of this material is that it can be made from simple, inexpensive metal salts using commercial polymer products." Next, we plan to embed the resulting metal nanoparticles into graphene using a commercial laser scriber. Many of the chemical reactions are made by laser, which allows graphene to be prepared at room temperature. "This composite has less than 1% metal content and can be used in the field of fuel cells as a" super catalyst. "Compared to other methods, this method has simpler steps and does not require expensive metals and carbon precursors body." Initially, researchers used commercial polyimide lasers to make graphene surfaces. Later, they injected boron into the polyimide liquid to produce graphene, which greatly increases the space for storing charge and can be an effective supercapacitor. As the newest study, researchers mixed three concentrations of metal salts containing cobalt, iron or molybdenum. After the mixture has condensed into a thin film, it is cured by infrared laser and heated in argon at 750 degrees C for about half an hour. This preparation resulted in a metal-containing high-strength MO-LIGs material in which 10 nm particles were uniformly distributed on the graphene. The researchers also tested the ability of this catalyst to reduce oxygen, which is an important chemical reaction in fuel cells. Further sulfur-doped catalysts can promote the conversion of hydrogen, and other catalysts convert water to hydrogen, Tour explains. "It is noteworthy that a simple graphene-molybdosulfide catalyst can convert metal oxides to metal sulfides and prepare catalysts for hydrogen conversion reactions with a wide range of applications," he said. Aluminum Perfume Cap,Perfume Lid,Aluminum Perfume Bottle Cap,Aluminum Perfume Bottle Tops Jiangyin First Beauty Packing Industry Co, ltd , https://www.jycosmeticpacking.com