Nitrogen-Doped Carbon Capsules via Poly(ionic liquid)-Based Layer-by-Layer Assembly

2012 ◽  
Vol 33 (13) ◽  
pp. 1149-1153 ◽  
Author(s):  
Qiang Zhao ◽  
Tim-Patrick Fellinger ◽  
Markus Antonietti ◽  
Jiayin Yuan
2016 ◽  
Vol 4 (42) ◽  
pp. 16383-16393 ◽  
Author(s):  
Zhiping Zeng ◽  
Fang-Xing Xiao ◽  
Xuchun Gui ◽  
Rong Wang ◽  
Bin Liu ◽  
...  

A layer-by-layer assembly of highly ordered nitrogen-doped graphene quantum dots (N-GQDs)/ZnO nanowire (NW) heterostructures was demonstrated as a high performance photoanode in photoelectrochemical hydrogen generation.


2012 ◽  
Vol 520 (24) ◽  
pp. 7066-7070 ◽  
Author(s):  
Min Guo ◽  
Chanfei Su ◽  
Gaoqing Lu ◽  
Xianfang Zhu ◽  
Chenxu Wu ◽  
...  

2011 ◽  
Vol 2 (8) ◽  
pp. 1654 ◽  
Author(s):  
Jiayin Yuan ◽  
Alfonso García Márquez ◽  
Jochen Reinacher ◽  
Cristina Giordano ◽  
Jürgen Janek ◽  
...  

TAPPI Journal ◽  
2009 ◽  
Vol 8 (6) ◽  
pp. 29-35 ◽  
Author(s):  
PEDRAM FATEHI ◽  
LIYING QIAN ◽  
RATTANA KITITERAKUN ◽  
THIRASAK RIRKSOMBOON ◽  
HUINING XIAO

The application of an oppositely charged dual polymer system is a promising approach to enhance paper strength. In this work, modified chitosan (MCN), a cationic polymer, and carboxymethyl cellulose (CMC), an anionic polymer, were used sequentially to improve paper strength. The adsorption of MCN on cellulose fibers was analyzed via polyelectrolyte titration. The formation of MCN/CMC complex in water and the deposition of this complex on silicon wafers were investigated by means of atomic force microscope and quasi-elastic light scattering techniques. The results showed that paper strength was enhanced slightly with a layer-by-layer assembly of the polymers. However, if the washing stage, which was required for layer-by-layer assembly, was eliminated, the MCN/CMC complex was deposited on fibers more efficiently, and the paper strength was improved more significantly. The significant improvement was attributed to the extra development of fiber bonding, confirmed further by scanning electron microscope observation of the bonding area of fibers treated with or without washing. However, the brightness of papers was somewhat decreased by the deposition of the complex on fibers. Higher paper strength also was achieved using rapid drying rather than air drying.


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