نتایج جستجو برای: nano boehmite

تعداد نتایج: 50922  

Journal: :International Journal of Hydrogen Energy 2022

The separation of H2O vapor from (hydrogen-rich) gaseous streams is a topic increasing interest in the context CO2 valorisation, where situ water removal increases product yield and catalyst stability. In this work, composite alumina carbon molecular sieve membranes (Al-CMSM) were prepared phenolic resin solutions loaded with hydrophilic boehmite (γ-AlO(OH)) nanosheets (0.4–1.4 wt. % solution) ...

2016
Aleksandr V. Yakovlev Valentin A. Milichko Evgeny A. Pidko Vladimir V. Vinogradov Alexandr V. Vinogradov

This paper describes a practical approach for the fabrication of highly visible interference color images using sol-gel ink technique and a common desktop inkjet printer. We show the potential of titania-boehmite inks for the production of optical heterostructures on various surfaces, which after drying on air produce optical solid layers with low and high refractive index. The optical properti...

2014
Jeon-Hee Kim Seung-Joon Yoo Dong-Heui Kwak Heung-Joe Jung Tae-Young Kim Kyung-Hee Park Jae-Wook Lee

Alumina nanofibers were prepared by a technique that combined the sol-gel and electrospinning methods. The solution to be electrospun was prepared by mixing aluminum isopropoxide (AIP) in ethanol, which was then refluxed in the presence of an acid catalyst and polyvinylpyrolidone (PVP) in ethanol. The characterization results showed that alumina nanofibers with diameters in the range of 102 to ...

Journal: :Physical review letters 2011
Jochen Aulbach Bergin Gjonaj Patrick M Johnson Allard P Mosk Ad Lagendijk

We report the first experimental demonstration of combined spatial and temporal control of light transmission through opaque media. This control is achieved by solely manipulating spatial degrees of freedom of the incident wave front. As an application, we demonstrate that the present approach is capable of forming bandwidth-limited ultrashort pulses from the otherwise randomly transmitted ligh...

2015
Min-Gyu Kang Seung-Min Oh Woo-Suk Jung Hi Gyu Moon Seung-Hyub Baek Sahn Nahm Seok-Jin Yoon Chong-Yun Kang

Piezoelectric materials capable of converting between mechanical and electrical energy have a great range of potential applications in micro- and nano-scale smart devices; however, their performance tends to be greatly degraded when reduced to a thin film due to the large clamping force by the substrate and surrounding materials. Herein, we report an effective method for synthesizing isolated p...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2009
Choongyeop Lee Chang-Jin C J Kim

In an effort to maximize the liquid slip on superhydrophobic surfaces, we investigate the role of the nanoscale roughness on microscale structures by developing well-defined micro-nano hierarchical structures. The nonwetting stability and slip length on the dual-scale micro-nano structures are measured and compared with those on single-scale micro-smooth structures. A force balance between a li...

Journal: :Advanced materials 2013
Amanda B Marciel Melikhan Tanyeri Brian D Wall John D Tovar Charles M Schroeder William L Wilson

A microfluidic-based directed assembly strategy is employed to form highly aligned supramolecular structures. Formation of aligned synthetic oligopeptide nanostructures is accomplished using planar extensional flow, which induces alignment of underlying material suprastructures. Fluidic-directed assembly of supramolecular structures allows for unprecedented manipulation at the nano- and mesosca...

Journal: :Science 2016
Wenyan Liu Miho Tagawa Huolin L Xin Tong Wang Hamed Emamy Huilin Li Kevin G Yager Francis W Starr Alexei V Tkachenko Oleg Gang

Diamond lattices formed by atomic or colloidal elements exhibit remarkable functional properties. However, building such structures via self-assembly has proven to be challenging because of the low packing fraction, sensitivity to bond orientation, and local heterogeneity. We report a strategy for creating a diamond superlattice of nano-objects via self-assembly and demonstrate its experimental...

2004
Gaurav Sharma Constantinos Mavroidis Antoine Ferreira

2 Virtual Reality and Haptics in Nano-and Bionanotechnology

2015
Sangwha Lee Jongsung Kim Chung Wung Bark Bonghee Lee Heongkyu Ju Se Chan Kang TaeYoung Kim Moon Il Kim Young Tag Ko Jeong-Seok Nam Hyon Hee Yoon Kyu-Sik Yun Young Soo Yoon Seong Soo A An John Hulme

From the synergistic integration and the multidisciplinary strengths of the BioNano Sensor Research Center, Gachon Bionano Research Institute, and Lee Gil Ya Cancer and Diabetes Institute, researchers, students, and faculties at Gachon University in collaboration with other institutions in Korea, Australia, France, America, and Japan have come together to produce a special issue on the diverse ...

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