古志遠(yuǎn)教授課題組在ADVANCED FUNCTIONAL MATERIALS發(fā)表研究論文
Nonlinear Ion Transport through Ultrathin Metal-Organic Framework Nanosheet
Zhang, Q (Zhang, Qi)[ 1 ] ; Cao, PS (Cao, Pei-Sheng)[ 1 ] ; Cheng, Y (Cheng, Yue)[ 1 ] ; Yang, SS (Yang, Shi-Shu)[ 1 ] ; Yin, YD (Yin, Yun-Dong)[ 1 ] ; Lv, TY (Lv, Tian-Yi)[ 1 ] ; Gu, ZY (Gu, Zhi-Yuan)[ 1 ]*（古志遠(yuǎn)）
[ 1 ] Nanjing Normal Univ, Jiangsu Key Lab New Power Batteries, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Sch Chem & Mat Sci,Jiangsu Key Lab Biofunct Mat, Nanjing 210023, Peoples R China
ADVANCED FUNCTIONAL MATERIALS，202008,2004854
The rational design of artificial solid-state nanopores is of great importance in the discovery of intriguing ion transport phenomena. 2D metal-organicframework (2D MOF) nanosheets with single crystallinity, aligned nanochannels, ultrathin thickness, and diverse functionalities are highly potential solid-state nanopores. An electrophoretic method is developed to successfully fabricate MOF nanopores supported by SiN(x)substrate, which is confirmed by high-resolution transmission electron microscopy. A giant gap around 4 V together with ionic current rectification is discovered in nonlinear voltage-activated current-voltage curves, revealing the synergy of the hydrophobic effect and charge effect in MOF nanopores. The charge effect embodies the different contribution current which results from the enrichment and depletion of ions in MOF nanopores by COMSOL simulation. Moreover, 2D MOF nanosheets with different surface charges, hydrophobicity, and pore sizes demonstrate the universality of nanopore fabrication and further confirm the synergistic mechanism. The nonlinear ion transport in the ultrathin MOF nanosheets will provide an opportunity to explore further applications in solid-state nanopores.
文章鏈接：
https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.202004854
版權(quán)與免責(zé)聲明：本網(wǎng)頁的內(nèi)容由收集互聯(lián)網(wǎng)上公開發(fā)布的信息整理獲得。目的在于傳遞信息及分享，并不意味著贊同其觀點(diǎn)或證實(shí)其真實(shí)性，也不構(gòu)成其他建議。僅提供交流平臺，不為其版權(quán)負(fù)責(zé)。如涉及侵權(quán)，請聯(lián)系我們及時修改或刪除。郵箱：sales@allpeptide.com