Results 91 to 100 of about 91,052 (341)

Pore Size Effects of Mesoporous N‐Doped Carbon Nanospheres as Advanced Support Material on the Activity of Molybdenum Sulfide Catalysts for the Hydrogen Evolution Reaction

Advanced Functional Materials, EarlyView.
By tuning the pore size of mesoporous N‐doped carbon (MPNC) nanospheres as support material for molybdenum sulfide, the electrochemical activity of the composite material for the hydrogen evolution reaction can be optimized. An ideal MPNC pore size of 60 nm allows a high number of molybdenum sulfide active sites while maintaining efficient proton and ...
Niklas Ortlieb, Christian Völker, Lars Guggolz, Anna Fischer   +3 more
wiley   +1 more source

Shock consolidation of Fe-based amorphous alloy powder.

Journal of the Japan Society of Powder and Powder Metallurgy, 1988
Dynamic compaction of Fe-based amorphous alloy powder was performed by using a gun-type momentum trap method. Residual shock effects on the amorphous alloy samples was characterized by microstructural analysis (i.e. optical, SEM, and TEM observations), X-ray diffraction analysis, tensile strength test, and measurement of it's soft magnetic properties ...
Takashi Taniguchi, Takashi Sato, Ken-ichi Kondo, Akira Sawaoka   +3 more
openaire   +2 more sources

Soft Magnetic Properties of Fe-Based Bulk Amorphous Alloys

Materials Transactions, JIM, 2000
A large supercooled liquid region over 50 K before crystallization were obtained in amorphous Fe-(Al, Ga)-(P, C, B, Si), Fe-(Cr, Mo, Nb)-(Al, Ga)-(P, C, B) and (Fe, Co, Ni)-(Zr, Hf)-M-B (M = Ti, Hf, V, Nb, Ta, Cr, Mo, W) systems and their bulk glassy alloys were produced in a thickness range below 2 mm for the Fe-(Al, Ga)-(P, C, B, Si) system and 6 mm ...
Akihiro Makino, Akihisa Inoue, Takao Mizushima   +2 more
openaire   +2 more sources

SI‐bioATRP in Mesoporous Silica for Size‐Exclusion Driven Local Polymer Placement

Advanced Functional Materials, EarlyView.
An enzyme‐catalyzed surface‐initiated atom transfer radical polymerization (SI‐bioATRP) of an anionic monomer within mesoporous silica particles, using hemoglobin as a catalyst, allows for controlling the location of the formed polymer via size‐exclusion effects between the nanopores and the biomacromolecules, thereby opening routes to functional ...
Oleksandr Wondra, Eleonora Ornati, Robert Lehn, Joanna J. Mikolei, Hergen Breitzke, Raheleh Pardehkhorram, Gerd Buntkowsky, Nico Bruns, Annette Andrieu‐Brunsen   +8 more
wiley   +1 more source

Enhanced Nitric Oxide Electroreduction to Ammonia via Modulating Spin‐Polarization of Fe Single‐Atom Catalysts

Advanced Functional Materials, EarlyView.
A strategic spin‐polarization suppression in Fe single‐atom catalysts is proposed to enhance electrocatalytic reduction of NO to NH3. Employing a top‐down electrospinning strategy, self‐supported FeSAC with Fe‐N3S1 coordination structure and spin‐state transition is engineered from high‐spin to low‐spin.
Jialing Song, Ziqi Wei, Lupeng Han, Zhenlin Wang, Chenghao Fan, Donglin Han, Chunwei Dong, Haiyan Duan, Xiyang Wang, Sam Fong Yau Li, Eslam Hamed, Ming Xie, Emiliano Cortés, Dengsong Zhang   +13 more
wiley   +1 more source

Microstructure and Wear Resistance of Fe-Cr-Mo-Co-C-B Amorphous Composite Coatings Synthesized by Laser Cladding

Metals, 2018
A novel amorphous composite coating was synthesized successfully on 3Cr13 stainless steel by laser cladding Fe-Cr-Mo-Co-C-B amorphous alloy powder. Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD) were
Xiangchun Hou, Dong Du, Kaiming Wang, Yuxiang Hong, Baohua Chang   +4 more
doaj   +1 more source

ELECTRICAL RESISTIVITY STUDY OF THE Fe-BASED AMORPHOUS ALLOYS

Acta Physica Sinica, 1986
Temperature dependence of the electrical resistivity of Fe100-xBx,Fe87-xSixB13,(Fe1-xCox)78Si9.5B12.5,(Fe1-xMx)80-84B16-20(M = Zr, V, Nb, Ta, Cr, Mo, W, Mn) amorphous alloys in the range of 4.2-300 K has been studied in this work. The experimental results demonstrated that the resistivity minima phenomena appear in all these samples. The temperature of
null ZHAN WEN-SHAN, null SHEN BAO-GEN, null ZHAO JIAN-GAO, null CHEN JIN-CHANG   +3 more
openaire   +1 more source

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

Advanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang, Muhammad Adib Abdillah Mahbub, Bashir Eid, Thomas Quast, Jian Zhang, Ridha Zerdoumi, Xin Wang, Sabine Seisel, Wangcheng Zhan, Wolfgang Schuhmann   +9 more
wiley   +1 more source

Corrosion resistance of modified amorphous cobalt alloys

Науковий вісник Львівського національного університету ветеринарної медицини та біотехнологій імені С.З. Ґжицького. Серія: Харчові технології
Amorphous metal alloys (AMА) based on Co have high corrosion resistance, which exceeds the durability of samples based on Fe, and also have the properties of soft magnetic materials. Therefore, new cobalt amorphous tape alloys can be used in medicine, in
O. Hertsyk, M. Tashak, N. Pandiak, A. Shalko, V. Slobodnyj   +4 more
doaj   +1 more source

Theoretical Exploration on the Magnetic Properties of Ferromagnetic Metallic Glass: An Ising Model on Random Recursive Lattice

, 2015
The ferromagnetic Ising spins are modeled on a recursive lattice constructed from random-angled rhombus units with stochastic configurations, to study the magnetic properties of the bulk Fe-based metallic glass. The integration of spins on the structural
Chen, Chong, Huang, Ran, Wu, Chengjie, Yan, Linyin, Zhang, Ling   +4 more
core   +1 more source