A new achievement jointly completed by scientists from China and the United States reached the headline of the 27th “Nature†website: Graphene, boron nitride, and other two-dimensional nanomaterials have the property of allowing only protons to pass through, which is expected to replace the core of fuel cell production. The existing material of the component "proton-conducting membrane" gave birth to revolutionary advances in fuel cells. The results were co-authored by Prof. Wu Heng'an of the University of Science and Technology of China, Special Research Fellow Wang Fengchao, and Nobel Laureate of Physics, Prof. Andre Heim of the University of Manchester, UK, and researchers from the Nehemiah University of the Netherlands. On the 26th of the month, it was published online in the international top academic journal Nature. A fuel cell is a power generation device that directly converts the chemical energy contained in a fuel into electrical energy, and has many advantages such as high energy conversion efficiency, no need for charging time, zero emissions, and no pollution. From smart phones to aerospace, defense, and fuel cells can all show their talent and application prospects are very broad. However, the presence of fuel infiltration and other defects in the "proton-conducting membrane", the core component of the fuel cell, greatly limits its large-scale application. According to Prof. Wu Heng'an, the co-corresponding author of the paper, graphene is a two-dimensional, single-layered, two-dimensional network of carbon atoms arranged in a hexagonal honeycomb lattice. Two-dimensional boron nitride nanomaterials also have graphene-like properties. Hexagonal mesh structure. The traditional view is that any gas or fluid molecule, even the smallest hydrogen atoms, cannot penetrate flawless perfect graphene sheets. Their research shows that protons can easily pass through two-dimensional materials such as graphene and boron nitride; if the temperature is increased or the catalyst is added, the penetration process will be significantly faster. Moreover, other than protons, other materials cannot cross two-dimensional materials such as graphene and boron nitride. According to Wang Fengchao's special associate researcher, based on this research result, single-atomic layer two-dimensional materials such as graphene and boron nitride can be used as “proton conducting membranesâ€, which will make fuel cells more efficient, safer and more environmentally friendly. Being lighter and lighter, its application areas will be greatly expanded and application speed will be significantly accelerated. At the same time, the results will also greatly promote the research of hydrogen-related technologies. It is reported that after the publication of the paper, the "Nature" website made its first report in the form of a home page headline, and the "Nature News Viewpoint" column during the same period also made a critical comment and outlook on the outcome. Professor Karnik of the Massachusetts Institute of Technology pointed out in the review that the proton conducting membrane is the core of the fuel cell. The breakthrough in this research has theoretically met the 2020 Proton Conductive Membrane Transport Performance Target set by the US Department of Energy. . Burlap Jute Tote Bags,Jute Tote Bag,Burlap Tote Bag,Custom Burlap Tote Bags Sichuan Dole Bonz Trading Co., Ltd. , https://www.dlbzbag.com
New characteristics of graphene films found in China and abroad are expected to be more efficient fuel cells
Graphene, boron nitride, and other two-dimensional nanomaterials have the property of allowing only protons to pass through. Therefore, they are expected to replace the existing materials for the production of the proton-conducting membrane, which is the core component of the fuel cell, and to promote the revolutionary progress of the fuel cell.