The demand to increase energy density of rechargeable batteries for portable electronic devices and electric vehicles and to reduce the cost for grid-scale energy storage necessitates the exploration of new chemistrie...The demand to increase energy density of rechargeable batteries for portable electronic devices and electric vehicles and to reduce the cost for grid-scale energy storage necessitates the exploration of new chemistries of electrode materials for rechargeable batteries.The open framework-structure of Prussian-blue materials has recently been demonstrated as a promising cathode host for a variety of monovalent and multivalent cations with the tunable working voltage and discharge capacities.Recent progress toward the application of Prussian-blue cathode materials for rechargeable batteries is reviewed,with special emphasis on charge-storage mechanisms of different insertion species,factors influencing electrochemical performances,and possible approaches to overcome their intrinsic limitations.展开更多
该研究采用普鲁士蓝纳米粒子(Prussian blue nanoparticles,PBNPs)作为信号标签,通过制备PBNPs和聚多巴胺包裹普鲁士蓝纳米粒子(polydopamine coated Prussian blue nanoparticles,PB@PDA),优化测试参数、测试试纸条灵敏度和特异性等,研...该研究采用普鲁士蓝纳米粒子(Prussian blue nanoparticles,PBNPs)作为信号标签,通过制备PBNPs和聚多巴胺包裹普鲁士蓝纳米粒子(polydopamine coated Prussian blue nanoparticles,PB@PDA),优化测试参数、测试试纸条灵敏度和特异性等,研究PBNPs和PB@PDA对呕吐毒素(deoxynivalenol,DON)的检测性能。结果表明,在最优实验条件下,所构建的基于PBNPs和PB@PDA的免疫层析试纸条对DON标准溶液视觉检出限分别为1.0 ng/mL和0.2 ng/mL,在0.1~0.5 ng/mL保持良好的线性关系,PB@PDA比PBNPs-LFIA检测灵敏度提高5倍,2种试纸条均显示良好的特异性。将PBNPs和PB@PDA两种试纸条应用于小麦样品检测,显示试纸条能排除小麦基质干扰,其检测限分别为20 ng/g和5 ng/g,且PB@PDA检测灵敏度高于商品化胶体金试纸条(10 ng/g)。可见,PB@PDA试纸条表现高灵敏性和抗干扰性,可满足呕吐毒素国家安全标准的限量检测要求,为现场快速筛查小麦中呕吐毒素污染提供一种新方法。展开更多
基金Experimental Center of Advanced Materials in Beijing Institute of TechnologyNational Key R&D Program of China,Grant/Award Number:2019YFA0705602+2 种基金National Natural Science Foundation of China,Grant/Award Numbers:51772029,51972029Shandong Huana New Energy Technology Co.,Ltd.Teli Young Scholars of Beijing Institute of Technology。
文摘The demand to increase energy density of rechargeable batteries for portable electronic devices and electric vehicles and to reduce the cost for grid-scale energy storage necessitates the exploration of new chemistries of electrode materials for rechargeable batteries.The open framework-structure of Prussian-blue materials has recently been demonstrated as a promising cathode host for a variety of monovalent and multivalent cations with the tunable working voltage and discharge capacities.Recent progress toward the application of Prussian-blue cathode materials for rechargeable batteries is reviewed,with special emphasis on charge-storage mechanisms of different insertion species,factors influencing electrochemical performances,and possible approaches to overcome their intrinsic limitations.
