Formation of highly porous structure in the electrospun polylactide fibers by swelling-crystallization in poor solvents

RSC Advances ◽  
2015 ◽  
Vol 5 (47) ◽  
pp. 37539-37544 ◽  
Author(s):  
Renping Tian ◽  
Peng Zhang ◽  
Ruihua Lv ◽  
Bing Na ◽  
Qingxian Liu ◽  
...  
Keyword(s):  
Porous Structure ◽  
Surface Area ◽  
Large Surface Area ◽  
Highly Porous ◽  
Poor Solvent

Highly porous polylactide fibers with very large surface area were produced by swelling-crystallization of as-spun counterparts in a poor solvent.

Synthesis and Characterization of RuO2 Anode Materials with Large Surface Areas for Oxygen Evolution Reaction

2012 ◽  
Vol 15 (4) ◽  
pp. 271-276 ◽  
Author(s):  
Yang Zhang ◽  
Lixia Yue ◽  
Ke Teng ◽  
Shiyong Yuan ◽  
Hongchao Ma
Keyword(s):  
Porous Structure ◽  
Electrochemical Properties ◽  
Surface Area ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Mesoporous Structure ◽  
Large Surface Area ◽  
Precipitation Method ◽  
Surface Areas ◽  
Lower Temperature

A novel olivary or petal-like RuO2 material with large surface area was successfully synthesized by surfactant-assisted homogeneous precipitation method using urea and dodecyl sulfate as the source reagent. The surface morphology, structural, and electrochemical properties of as-synthesized RuO2 materials were characterized by x-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), Cyclic voltammetry (CV), N2 adsorption–desorption isotherms and polarization curve for oxygen evolution reaction (OER). It was found that the morphology and crystalline structures and electrochemical properties of as-synthesized RuO2 materials were strongly dependent on the calcining temperature. The ruthenium-surfactant mesophase with mesoporous structure transformed from network to regular olivary or petal-like RuO2 materials and remaining partial mesoporous character after calcination at lower temperature (i.e., 300 and 400 °C). However, the mesophase transformed into RuO2 agglomeration consisted of nanosized particles after calcination at 650 °C, which may be attributed to complete deorganization and porous structure collapse of RuO2 materials. In addition, the as-synthesized RuO2 materials showed higher specific surface area and better electrochemical activities for oxygen evolution reaction compared with the RuO2 prepared without surfactant. The electrochemical activity of as-synthesized RuO2 material calcined at 400 °C is about 3 times than that of RuO2 prepared without surfactant for oxygen evolution reaction. This can be attributed to the porous structure and large surface area of as-synthesized RuO2 materials.

A porous PdO microrod-based electrochemical sensor for nanomolar-level Cu2+ released from cells

2014 ◽  
Vol 2 (44) ◽  
pp. 7719-7724 ◽  
Author(s):  
Xia Cao ◽  
Yu Han ◽  
Caizhen Gao ◽  
Ying Xu ◽  
Xiaomin Huang ◽  
...  
Keyword(s):  
Electrochemical Sensor ◽  
Surface Area ◽  
Active Sites ◽  
Chemical Method ◽  
Large Surface Area ◽  
Wet Chemical Method ◽  
Wet Chemical ◽  
First Time ◽  
Highly Porous

Highly porous PdO microrods (PoPdOMRs) with a well-defined morphology, large surface area and active sites were synthesized via a facile wet chemical method for the first time.

Conductive and biodegradable scaffolds based on a five-arm and functionalized star-like polyaniline–polycaprolactone copolymer with a d-glucose core

2017 ◽  
Vol 41 (14) ◽  
pp. 6371-6384 ◽  
Author(s):  
Raana Sarvari ◽  
Mahyar Akbari-Alanjaraghi ◽  
Bakhshali Massoumi ◽  
Younes Beygi-Khosrowshahi ◽  
Samira Agbolaghi
Keyword(s):  
Electrical Conductivity ◽  
Porous Structure ◽  
Surface Area ◽  
Cell Attachment ◽  
Large Surface Area ◽  
Biodegradable Scaffolds ◽  
Proliferation And Differentiation

The scaffolds demonstrated a porous structure with a large surface area and electrical conductivity, imitating the ECM to regulate cell attachment, proliferation, and differentiation.

Precise casting of biomorphic La0.9K0.1CoO3 catalysts derived from pinewood for diesel soot combustion

RSC Advances ◽  
2016 ◽  
Vol 6 (91) ◽  
pp. 87856-87862
Author(s):  
Zhaohui Liu ◽  
Xiaofei Wang ◽  
Teng Mao ◽  
Jinqiang Sima ◽  
Cairong Gong ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Porous Structure ◽  
Surface Area ◽  
Diesel Soot ◽  
Large Surface Area ◽  
Soot Combustion ◽  
Perovskite Type Oxide ◽  
Perovskite Type

A biomorphic perovskite-type oxide, possessing a large surface area, was successfully fabricated using pinewood as a template. The porous structure prompted catalytic activity towards soot combustion under low temperature.

Preparation of porous reduced graphene oxide using cellulose acetate for high performance capacitive desalination

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 70532-70536 ◽  
Author(s):  
Penghui Wang ◽  
Guoqian Lu ◽  
Huan Yan ◽  
Wei Ni ◽  
Min Xu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Porous Structure ◽  
Cellulose Acetate ◽  
Reduced Graphene Oxide ◽  
Surface Area ◽  
High Performance ◽  
Three Dimensional ◽  
Large Surface Area ◽  
Porous Graphene ◽  
Reduced Graphene

A three-dimensional porous graphene electrode is prepared by using cellulose acetate as a template. The electrode possesses ideal porous structure and large surface area, therefore resulting in high electrosorption capacity for CDI application.

Functional Two-Dimensional Black Phosphorus Nanostructures towards Next-Generation Devices

2021 ◽  
Author(s):  
Mengke Wang ◽  
Jun Zhu ◽  
You Zi ◽  
Zheng-Guang Wu ◽  
Haiguo Hu ◽  
...  
Keyword(s):  
Surface Area ◽  
Biomedical Applications ◽  
Black Phosphorus ◽  
Large Surface Area ◽  
Two Dimensional ◽  
Next Generation

In recent years, two-dimensional (2D) black phosphorus (BP) has been widely applied in many fields, such as (opto)electronics, transistors, catalysis and biomedical applications due to its large surface area, tunable...

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