Results 71 to 80 of about 70,167 (257)

Room Temperature Synthesis and Photopatterning of Mesoporous Titanium Dioxide Thin Films

Advanced Materials Technologies, EarlyView.
A nanofabrication strategy combining deep‐UV photolithography with block copolymer self‐assembly enables direct patterning and mineralization of mesoporous TiO2 thin films at room temperature. Photocatalytic titanium oxo‐clusters promote polymer degradation under UV irradiation, enabling multiscale control over porosity, film thickness, and lateral ...
Youssef Ghossoub, Laurent Noel, Dominique Berling, Victor Malgras, David Grosso, Olivier Soppera   +5 more
wiley   +1 more source

Speciation, Structural Refinement, and Distribution of Ti Sites in Titanium Silicalite‐1 From 47/49Ti NMR Crystallography at 28.2 Tesla

Angewandte Chemie, EarlyView.
Titanium silicalite‐1 (TS‐1), used in industrial selective oxidation processes, depends on specific, yet still unresolved Ti sites, dispersed within the framework of an MFI‐zeolite. Applying high field (28.2 T) 47/49Ti NMR and 17O NMR spectroscopy for an array of TS‐1 catalysts enables the development of an NMR crystallography protocol and the ...
Christoph J. Kaul, Jonas Koppe, Lukas Lätsch, Michael Wörle, Sadig Aghazada, Jacob B. Holmes, Christina Wartmann, Mingji Zheng, Albrecht Berkessel, Trees De Baerdemaeker, Andrei‐Nicolae Parvulescu, Karsten Seidel, J. Henrique Teles, Alexander V. Yakimov, Christophe Copéret   +14 more
wiley   +2 more sources

Synthesis of One-Dimensional Titanium Oxide Nanowires for Polyvinylidene Fluoride Membrane Optimization

Crystals, 2022
Due to their beneficial characteristics, 1D nanowires have made significant advancements in different realms due to their large surface area, unique surface chemistry, and tunable transport properties.
Muhammad Arsalan Dilbraiz, Mohsan Nawaz, Mr. Imtiaz, Pervaiz Ahmad, Sirajul Haq, Zia Ur Rehman, Hameed Ullah, Mayeen Uddin Khandaker, Nissren Tamam, Abdelmoneim Sulieman, Majed A. Bajaber   +10 more
doaj   +1 more source

All-inorganic core-shell silica-titania mesoporous colloidal nanoparticles showing orthogonal functionality [PDF]

, 2011
Colloidal mesoporous silica (CMS) nanoparticles with a thin titania-enriched outer shell showing a spatially resolved functionality were synthesized by a delayed co-condensation approach.
Abe, Bartl, Cauda, Cauda, Dina Fattakhova-Rohlfing, Dong, Eimer, Fattakhova-Rohlfing, Fernandez, Garnweitner, Grätzel, Hagfeldt, Johann M. Szeifert, Karin Merk, Kecht, Kobler, Kobler, Kobler, Lechmann, Lee, Lee, Li, Li, Nazeeruddin, Oh, Orignac, Pan, Sahu, Schlossbauer, Szeifert, Thomas Bein, Valentina Cauda, Zhao   +32 more
core   +1 more source

Selective Conversion of Polyolefin Waste to Branched Alkanes via Methane‐Free Tandem Hydrocracking–Isomerization

Advanced Science, EarlyView.
Scheme illustrating the selective conversion of plastic waste to isomerized C4‐C12 products using RuSZ1 under different reaction conditions. ABSTRACT In recent years, catalytic hydrocracking has emerged as a promising waste‐to‐feedstock solution for processing plastic waste.
Xinbang Wu, Sitan Wang, Matilde Onofri, Kande Liu, Kun‐Han Lin, Roland C. Turnell‐Ritson, Li Shi, Xuan Meng, Paul J. Dyson   +8 more
wiley   +1 more source

Textural evolution and phase transformation in titania membranes: Part 2. - Supported membranes [PDF]

, 1993
Nanostructural evolution and phase transformation in supported and unsupported titania membranes have been studied using Raman spectroscopy, X-ray diffraction (XRD) and field-emission scanning electron microscopy (FE-SEM).
Burggraaf, Anthonie J., Keizer, Klaas, Kumar, Krishnankutty-Nair P., Nagamoto, Hidetoshi, Okubo, Tatsuya   +4 more
core   +2 more sources

Reconfigurable, Temperature Resilient Phase‐Change Metasurfaces Fabricated via High Throughput Nanoimprinting Lithography

Advanced Science, EarlyView.
ABSTRACT The combination of metasurfaces with chalcogenide phase‐change materials is a highly promising route toward the development of multifunctional and reconfigurable nanophotonic devices. However, their transition into real‐world devices is hindered by several technological challenges. This includes, amongst others, the lack of large area photonic
Carlota de Ruiz de Galarreta, Yinghao Zhao, Jose Mendoza‐Carreño, José M. Caicedo, José Santiso, C. David Wright, M. Isabel Alonso, Jiafang Li, Agustin Mihi   +8 more
wiley   +1 more source

Ferromagnetism in laser deposited anatase Ti$_{1-x}$Co$_{x}$O$_{2-$\delta$}$ films

, 2002
Pulsed laser deposited films of Co doped anatase TiO2 are examined for Co substitutionality, ferromagnetism, transport, magnetotransport and optical properties.
A. Chattopadhyay, C. Lanci, E. M. James, H. Akai, H. D. Drew, H. Ohno, H. Ohno, J. Higgins, J. König, J. P. Buban, J. R. Simpson, K. Ando, K. Ueda, L. Forro, M. Berciu, N. D. Browning, R. L. Greene, R. P. Sharma, S. A. Chambers, S. B. Ogale, S. Das Sarma, S. E. Lofland, S. R. Shinde, T. Dietl, T. Fukumura, T. Venkatesan, V. I. Litvinov, V. N. Kulkarni, Y. D. Kim, Y. D. Kim, Y. D. Park, Y. Matsumoto   +31 more
core   +1 more source

An investigation into the effect of thickness of titanium dioxide and gold-silver nanoparticle titanium dioxide composite thin-films on photocatalytic activity and photo-induced oxygen production in a sacrificial system [PDF]

, 2011
Thin films of titanium dioxide and titanium dioxide with incorporated gold and silver nanoparticles were deposited onto glass microscope slides, steel and titanium foil coupons by two sol–gel dip-coating methods.
Darr, J. A., Hyett, G., Kafizas, A., Kundu, S., Mills, A., Parkin, I. P.   +5 more
core   +1 more source

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

Advanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim, Wonjae Ko, Byoung‐Hoon Lee, Sanghoon Kim, Yun Do Kim, Hyunsoo Ahn, Yoon Jung, Chan Woo Lee, Kug‐Seung Lee, Eunhee Gong, Junho Lee, Minho Kim, Taeghwan Hyeon, Su‐Il In   +13 more
wiley   +1 more source