HomeAcademic Dynamic成版人快手下载app

Dr. Li Yaguang Makes Important Progress in Photothermal Catalysis

Recently, Dr. Li Yaguang from the Research Institute of Low-Dimensional Energy Conversion Materials and Devices of the School of Physics and his researchers cooperate with Zhejiang Normal University, the National Institute for Materials Science (NIMS) and other departments, having made important progress in the field of photothermal catalysis. The main result Selective light absorber-assisted single nickel atom catalysts for ambient sunlight-driven CO2 methanation has been published in the international authoritative journal Nature Communications (2019, 10, 2359) with Hebei University as the first department and Dr. Li Yaguang as the first and corresponding author of the paper.

The sunlight-driven CO2 methanation is important for addressing the growing energy crisis and environmental issues. At present, the research of this direction focuses on the preparation of light strong-absorbing materials to enhance light trapping ability and generate high-enough temperature to promote catalysis. However, these light absorbing materials can only obtain temperatures of 90 °C under standard sunlight, which cannot promote the photothermal CO2 methanation. Dr. Li Yaguang and others believe that the key to obtaining high temperature of light-absorbing materials under low-light irradiation is to reduce heat dissipation. At the same time, they found that thermal radiation is the main way of heat dissipation of light-absorbing materials.

During the process of this project, they proposed to use a selective light absorbing material to absorb sunlight, which can absorb 95% of the sunlight and the heat radiation is only 1/10 of the reported light absorbing material. What’s more, selective light absorbing material can produce 288 °C under standard sunlight and the temperature is more than three times of traditional light absorbing materials, which can realize the photothermal catalysis of CO2 methanation driven by standard sunlight. In addition, they prepare an amorphous Y2O3 two-dimensional nanosheet-loaded monoatomic nickel structure as a highly efficient methanation catalyst. The high-efficiency CO2 methanation of outdoor sunlight (0.52 to 0.7 standard sunlight intensity) is achieved by the synergistic action of selective light-absorbing material photothermal system and amorphous Y2O3 two-dimensional nanosheet-loaded monoatomic nickel. The efficiency is 80% and the methane yield is 7.5 l m−2h−1.

The Research Institute of Low-Dimensional Energy Conversion Materials and Devices of the School of Physics is mainly engaged in the study of theoretical design, controllable preparation and performance regulation of low-dimensional optical-thermal-electric energy conversion materials and devices. In the past three years, a series of research progresses have been made in related fields. The results have been published in Nat. Commun. (IF=12.353), Adv. Mater. Funct. (IF=13.325), Adv. Science (IF=12.441), Nano Energy. (IF=13.12), Appl. Cata. B-Environ. (IF = 11.698), Phys. Rev. B, Appl. Phys. Lett. and many other famous journals. This project has received strong support from the National Natural Science Foundation of China (51702078, 21633004), Hebei Excellent Youth Fund (A2016201176), Hebei University Outstanding Doctoral Program (YB201502) and Shanghai Synchrotron Radiation Source (BL14W1 Line Station).

花姿下载app

                                                             Reported by the School of Physics, Department of Science and Technology


小喵直播下载app 97豆奶视频下载app 91香蕉下载app 芭乐下载app 圣女直播app下载 雨燕直播app下载 芭乐视频下载app 十里桃花直播app下载 逗趣直播app下载 性福宝下载app 红楼直播app下载 樱花雨直播app下载 酷咪直播app下载 小奶狗视频下载app 初见直播下载app IAVBOBO下载app 杏吧直播app下载 望月直播app下载 老王视频下载app 蜜蜂视频app下载 恋夜秀场下载app 豆奶下载app 黄瓜视频人app下载 茄子直播app下载 花心社区下载app 迷雾直播app下载 小优下载app 草榴视频下载app视频免费最新 9uu下载app 依恋直播下载app 豌豆直播app下载 青青草下载app 芭乐下载app 卖肉直播下载app 卖肉直播下载app 初恋直播app下载 夜夜直播app下载 成版人抖音富二代下载app 初见直播下载app 夜夜直播app下载 swag视频下载app 初恋视频app下载 食色短视频下载app 米老鼠直播app下载 朵朵直播下载app 老王视频下载app 月色直播下载app 豆奶app下载 富二代短视频app下载 花粥直播app下载 棉花糖直播下载app 茄子app下载 妖妖直播下载app 快喵下载app 月光直播下载app 丝瓜视频污下载app 么么直播app下载 丝瓜草莓视频app下载 秀色小抖音下载app 梦露直播app下载