双氧水制备有了新方法——“朽木”发电 空气“供氧”

Core Viewpoint - Researchers have developed a new method for producing hydrogen peroxide using lignin, a waste product from the paper-making process, which is safer and more environmentally friendly compared to traditional methods [1][6]. Group 1: Production Method - The new method utilizes lignin as a raw material and employs an electrochemical coupling process that oxidizes lignin using oxygen from the air to continuously generate hydrogen peroxide [1][2]. - The innovative aspect of this method is the creation of a new type of catalyst from lignin, which significantly enhances the electrolysis efficiency [2][4]. - The production rate of hydrogen peroxide using this new method can reach 11,812 millimoles per gram per hour, with a Faradaic efficiency of 95.7%, meaning 1 gram of catalyst can produce 400 grams of hydrogen peroxide in one hour [4]. Group 2: Energy Source - The system is powered by a biomass fuel cell developed by the research team, which uses lignin as fuel, eliminating the need for external power sources [5][6]. - This self-sustaining system allows for the production of hydrogen peroxide without the need for high temperatures or pressures, making it safer and more efficient [6]. Group 3: Environmental Impact - The new method is more energy-efficient and reduces carbon emissions compared to the traditional anthraquinone process, which requires high energy input and poses safety risks [6]. - The ability to produce hydrogen peroxide on-site eliminates transportation costs and safety hazards associated with moving the chemical [6]. Group 4: Future Directions - The research team aims to optimize the design and operation of the production system, focusing on portable devices for decentralized hydrogen peroxide production [6][7]. - There is also a focus on improving the efficiency and stability of biomass fuel cells, with the goal of converting lignin and other biomass into valuable energy and chemical resources [7].