Janus hollow spheres by emulsion interfacial self-assembled sol–gel process

2011 ◽  
Vol 47 (4) ◽  
pp. 1231-1233 ◽  
Author(s):  
Fuxin Liang ◽  
Jiguang Liu ◽  
Chengliang Zhang ◽  
Xiaozhong Qu ◽  
Jiaoli Li ◽  
...  
Keyword(s):  
Sol Gel ◽  
Hollow Spheres ◽  
Sol Gel Process ◽  
Self Assembled

Characterization of Medium-range Order in Self-Assembled Organic-inorganic Hybrid by Fluctuation X-ray Microscopy

2006 ◽  
Vol 960 ◽  
Author(s):  
Lixin Fan ◽  
David Paterson ◽  
Ian McNulty ◽  
M. M. J. Treacy ◽  
Dushyant Kumar ◽  
...  
Keyword(s):  
Self Assembly ◽  
Sol Gel ◽  
Range Order ◽  
Inorganic Materials ◽  
Medium Range Order ◽  
X Ray ◽  
Sol Gel Process ◽  
Medium Range ◽  
Self Assembled

ABSTRACTThe control of formation and ordering of self assembled nanostructures, with medium- to long-range order, is a challenge that limits advances in many fields of nanotechnology. We have developed a technique, which we call fluctuation x-ray microscopy, that offers quantitative insight into medium-range correlations in disordered materials at nanometer- and larger-length scales. We examined the influence of sol-gel process variables on medium range order in PI-b-PEO/ aluminosilicate bulk using this technique. The nano-structuring of inorganic materials was directed by polymer self-assembly. The medium range correlation between the nanostructures in two hybrids was quantitatively examined and compared.

Surface Modification of Novel Organic-Inorganic Hybrid Dielectrics Using Self-Assembled Monolayers

2007 ◽  
Vol 124-126 ◽  
pp. 295-298
Author(s):  
Sun Ho Jeong ◽  
Dong Jo Kim ◽  
Sul Lee ◽  
Bong Kyun Park ◽  
Joo Ho Moon
Keyword(s):  
Surface Modification ◽  
Gate Dielectric ◽  
Sol Gel ◽  
Self Assembled Monolayers ◽  
Organic Thin Film ◽  
Inorganic Hybrid ◽  
Sol Gel Process ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Material Solution

Using a thermally-crosslinkable organosiloxane-based organic-inorganic hybrid material, solution-processable gate dielectric layer for organic thin-film transistors (OTFTs) have been fabricated. The hybrid dielectric was synthesized by the sol-gel process. The surface of the prepared dielectric was modified by self-assembled monolayers (SAMs) treatment using wet chemical method. Prior to surface modification, the chemical inertness of prepared dielectric was investigated by immersing into various solvents such as toluene, acetone, isopropyl alcohol, and DI-water. The existence of SAMs on the surface of dielectric was confirmed by measuring current density-electric field characteristics and it was observed that surface morphology of SAMs-treated hybrid dielectric was very smooth.

scholarly journals Self-Assembled Triple (H+/O2−/e−) Conducting Nanocomposite of Ba-Co-Ce-Y-O into an Electrolyte for Semiconductor Ionic Fuel Cells

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2365
Author(s):  
Dan Xu ◽  
An Yan ◽  
Shifeng Xu ◽  
Yongjun Zhou ◽  
Shu Yang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Sol Gel ◽  
Reduction Reaction ◽  
Open Circuit ◽  
Composite Electrolyte ◽  
Conducting Oxides ◽  
Ionic Conducting ◽  
Sol Gel Process ◽  
Self Assembled ◽  
Triple H

Triple (H+/O2−/e−) conducting oxides (TCOs) have been extensively investigated as the most promising cathode materials for solid oxide fuel cells (SOFCs) because of their excellent catalytic activity for oxygen reduction reaction (ORR) and fast proton transport. However, here we report a stable twin-perovskite nanocomposite Ba-Co-Ce-Y-O (BCCY) with triple conducting properties as a conducting accelerator in semiconductor ionic fuel cells (SIFCs) electrolytes. Self-assembled BCCY nanocomposite is prepared through a complexing sol–gel process. The composite consists of a cubic perovskite (Pm-3m) phase of BaCo0.9Ce0.01Y0.09O3-δ and a rhombohedral perovskite (R-3c) phase of BaCe0.78Y0.22O3-δ. A new semiconducting–ionic conducting composite electrolyte is prepared for SIFCs by the combination of BCCY and CeO2 (BCCY-CeO2). The fuel cell with the prepared electrolyte (400 μm in thickness) can deliver a remarkable peak power density of 1140 mW·cm−2 with a high open circuit voltage (OCV) of 1.15 V at 550 °C. The interface band energy alignment is employed to explain the suppression of electronic conduction in the electrolyte. The hybrid H+/O2− ions transport along the surfaces or grain boundaries is identified as a new way of ion conduction. The comprehensive analysis of the electrochemical properties indicates that BCCY can be applied in electrolyte, and has shown tremendous potential to improve ionic conductivity and electrochemical performance.

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