Approaching Ultrastable High‐Rate Li–S Batteries through Hierarchically Porous Titanium Nitride Synthesized by Multiscale Phase Separation

2018 ◽  
Vol 31 (3) ◽  
pp. 1806547 ◽  
Author(s):  
Won‐Gwang Lim ◽  
Changshin Jo ◽  
Ara Cho ◽  
Jongkook Hwang ◽  
Seongseop Kim ◽  
...  
2019 ◽  
Vol 7 (26) ◽  
pp. 15633-15639 ◽  
Author(s):  
Yuchen Wu ◽  
Gaopeng Jiang ◽  
Guihua Liu ◽  
Gregory Lui ◽  
Zachary Paul Cano ◽  
...  

A nanoengineered 3D hierarchical ordered porous titanium nitride electrode is applied as an effective and efficient non-carbon electrode to deliver outstanding salt adsorption capacity and record-breaking salt adsorption rate in a capacitive deionization cell.


1997 ◽  
Vol 473 ◽  
Author(s):  
W. F. McArthur ◽  
F. Deng ◽  
K. Ring ◽  
P. M. Pattison ◽  
K. L. Kavanagh

ABSTRACTPVD-TixSiyNz films formed by reactive RF-magnetron co-sputtering of Ti and Si in Ar/N2 are evaluated as a diffusion barrier between Cu and Si. A complete range of compositions are obtained by Ti targets inlaid with Si. Film composition is controlled by the target ratio of titanium to silicon and N2 partial pressure. Electrical results versus thermal history for films of∼6–18% Si as well as the composition and microstructure as determined by Rutherford back scattering (RBS), TEM and electron diffraction are reported. These films are an amorphous matrix with imbedded nanocrystals of titanium nitride as-deposited and undergo phase separation to yield titanium nitride and silicon nitride after a 1000°C anneal. As-deposited compositions which lie above the TiN-Si3N4 phase line yield crystals of TiN. Compositions below the TiN-Si3N4 phase line yield crystals of Ti2N. Bulk resistivity as-deposited (<400μω-cm) is acceptable for use as a contact liner/barrier material and improves with annealing. Si pn-diodes metallized with 20nm Ti40Si15N45 and Cu show no significant increase in reverse leakage current at anneal temperatures below 700°C.


Author(s):  
Jianguo Li ◽  
Chaoji Chen ◽  
Wentao Gan ◽  
Zhihan Li ◽  
Hua Xie ◽  
...  

High-rate evaporation is achieved by a delignified reed, featuring hierarchically, 3D porous structure with microchannels surrounding macrochannels, which decouples the transport and evaporation of fluids, contributing to a high evaporation rate.


Nanoscale ◽  
2018 ◽  
Vol 10 (28) ◽  
pp. 13539-13547 ◽  
Author(s):  
Min Su Jo ◽  
Gi Dae Park ◽  
Yun Chan Kang ◽  
Jung Sang Cho

An efficient and simple synthetic strategy to prepare interconnected hierarchically porous anatase TiO2 nanofibers as anode materials for LIBs is introduced.


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