Results 51 to 60 of about 197,443 (329)

The Extraction Mechanism of Zirconium and Hafnium in the MIBK-HSCN System

Separations
The extraction of zirconium (Zr) and hafnium (Hf) in methyl isobutyl ketone (MIBK)—thiocyanic acid (HSCN) system has been widely used in the production of nuclear-grade zirconium and hafnium in industry, while the extraction mechanism was not adequately ...
Jing Xiong, Yang Li, Xiaomeng Zhang, Yong Wang, Yanlin Zhang, Tao Qi   +5 more
doaj   +1 more source

Evolução quantitativa de planossolos do agreste do estado de Pernambuco Quantitative evolution of planosols from the agreste region of Pernambuco State, Brazil

Revista Brasileira de Ciência do Solo, 2009
A pedogênese dos solos planossólicos, especialmente da região do Agreste de Pernambuco, tem sido pouco estudada, havendo indicações e dúvidas relativas a alguns aspectos como a possível dualidade ou retrabalhamentos diferenciados na formação do material ...
Roberto da Boa Viagem Parahyba, Mauro Carneiro dos Santos, Fernando Cartaxo Rolim Neto   +2 more
doaj   +1 more source

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source

Biocompatibility and antibacterial properties of zirconium nitride coating on titanium abutments: An in vitro study [PDF]

, 2018
Improving soft tissue attachment and reducing bacterial colonization on titanium abutments are key factors for the long-term maintenance of healthy soft and hard peri-implant tissues.
Bressan, Eriberto, Brun, Paola, Brunello, Giulia, Ferroni, Letizia, Gardin, Chiara, Meneghello, Roberto, Sivolella, Stefano, Zavan, Barbara   +7 more
core   +2 more sources

NANOINDENTATION OF ZIRCONIUM DENTAL CERAMIC PREPARED WITH DIFFERENT FINISHING TECHNIQUES [PDF]

Proceedings on Engineering Sciences, 2019
This paper describes the nanomechanical characteristics of Zirconium (IPS e.max ZirCAD, Ivoclar Vivadent) treated with three different surface finishing techniques: polishing, glazing and grinding, using the Anton Paar nanoindentation.
Marko PANTIĆ, Dragan DŽUNIĆ, Miroslav BABIĆ, Slobodan MITROVIĆ, Suzana PETROVIĆ SAVIĆ, Aleksandar ĐORĐEVIĆ, Aleksandra KOKIĆ ARSIĆ   +6 more
doaj   +1 more source

Ab Initio Study on 3D Anisotropic Ferroelectric Switching Mechanism and Coercive Field in HfO2 and ZrO2

Advanced Functional Materials, EarlyView.
This study uncovers a new switching mechanism in HfO2 and ZrO2, where the absence of a non‐polar layer along the a‐direction induces interaction between polar layers. Consequently, the switching barriers for growth are lower than those for nucleation in this direction, leading to a size‐dependent coercive field that matches experimental observations ...
Kun Hee Ye, Taeyoung Jeong, Seungjae Yoon, Dohyun Kim, Yunjae Kim, Cheol Seong Hwang, Jung‐Hae Choi   +6 more
wiley   +1 more source

Magic structures of helical multi-shell zirconium nanowires

, 2002
The structures of free-standing zirconium nanowires with 0.6$-$2.8 nm in diameter are systematically studied by using genetic algorithm simulations with a tight-binding many body potential. Several multi-shell growth sequences with cylindrical structures
B. Delley, B.L. Wang, B.L. Wang, Baolin Wang, C. Stassis, E. Tosatti, E. Tosatti, F. Cleri, F. Di Tolla, F. Willaime, G. Rubio, Guanghou Wang, H. Ohnishim, J.I. Pascual, J.I. Pascual, J.M. Krans, J.M. Krans, Jijun Zhao, K. Kondo, L. Olesen, N. Agrait, N. Agrait, O. Gulseren, O. Gulseren, Y. Kondo   +24 more
core   +2 more sources

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Nanocomposites and methods for synthesis and use thereof [PDF]

, 2009
Nanocomposite compositions and methods of synthesis of the compositions are described. In particular, liquid crystal-functionalized nanoparticles, liquid crystal-templated nanoparticles, nanocomposite compositions including the nanoparticles, and ...
Furman, Benjamin R., Rawls, H. Ralph, Thompson, Paul M., Wellinghoff, Stephen T.   +3 more
core   +1 more source

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

Advanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing, Abdulrahman Mohabbat, István Boldog, Jens Möllmer, Marcus Lange, Yulyan Haiduk, Tobias Heinen, Vladimir Pankov, Oliver Weingart, Christoph Janiak   +9 more
wiley   +1 more source