Results 91 to 100 of about 127,938 (332)

Probing the C-H Activation of Linear and Cyclic Ethers at (PNP)Ir [PDF]

, 2009
Interaction of the amido/bis(phosphine)-supported (PNP)Ir fragment with a series of linear and cyclic ethers is shown to afford, depending on substrate, products of α,α-dehydrogenation (carbenes), α,β-dehydrogenation (vinyl ethers), or decarbonylation ...
Chen, Chun-Hsing, Foxman, Bruce M., Grubbs, Robert H., Ozerov, Oleg V., Timpa, Samuel D., Whited, Matthew T., Zhu, Yanjun   +6 more
core   +1 more source

A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?

Advanced Engineering Materials, EarlyView.
Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli, Manel Rodríguez Ripoll, Sabine Schwarz, Ali Erdemir, Maria Clelia Righi, Carsten Gachot   +5 more
wiley   +1 more source

Two-dimensional real-time quality assurance dosimetry system using μ-Al2O3:C,Mg radioluminescence films

Physics and Imaging in Radiation Oncology, 2020
Background and purpose: There is a continual need for more accurate and effective dosimetric systems for quality assurance (QA) as radiotherapy evolves in complexity.
Luana F. Nascimento, Dirk Verellen, Jo Goossens, Lara Struelens, Filip Vanhavere, Paul Leblans, Mark Akselrod   +6 more
doaj  

Benzene C−H Bond Activation in Carboxylic Acids Catalyzed by O-Donor Iridium(III) Complexes: An Experimental and Density Functional Study [PDF]

, 2010
The mechanism of benzene C−H bond activation by [Ir(μ-acac-O,O,C^3)(acac-O,O)(OAc)]_2 (4) and [Ir(μ-acac-O,O,C^3)(acac-O,O)(TFA)]_2 (5) complexes (acac = acetylacetonato, OAc = acetate, and TFA = trifluoroacetate) was studied experimentally and ...
Bhalla, Gaurav, Bischof, Steven M., Ess, Daniel H., Goddard, William A., III, Meier, Steven K., Nielsen, Robert J., Oxgaard, Jonas, Periana, Roy A.   +7 more
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Iridium Oxide Network on Non‐conductive TiO2 Support as a Catalyst for Oxygen Evolution Reaction

ChemElectroChem
Successful deployment of hydrogen technologies relies on converting electricity from renewable energy sources into hydrogen. Proton exchange membrane electrolyzers are currently the technology of choice for this transformation.
Shabnam Zargarian, Camille Roiron, Giovanni Ferro, Plamen Atanassov   +3 more
doaj   +1 more source

Cyclometalated Iridium(III) Complexes Containing Benzoxazole Derivatives and Different Ancillary Ligands for Catalytic Oxidation of Toluene

Inorganics, 2018
A series of cyclometalated iridium(III) complexes that have the general formula [(C^N)2Ir(NR)(X)] (C^N = monoanionic bidentate cyclometalating ligands; NR = pyridine derivatives; X = Cl− or I−) are designed, prepared, and applied for the ...
Kelvin H.-C. Chen, Pei-Chun Liu, Tsun-Ren Chen, Jhy-Der Chen   +3 more
doaj   +1 more source

Helical Majorana fermions at the interface of Weyl semimetal and d-wave superconductor: Application to Iridates and high-Tc Cuprates

, 2017
Majorana bound states exist inside a core of half-quantum vortex in spin-triplet superconductors. Despite intense efforts, they have not been discovered in any spin-triplet superconductor candidate materials.
Chen, Yige, Kee, Hae-Young
core   +1 more source

An Examination of Aerosol Jet‐Printed Surface Roughness and its Impact on the Performance of High‐Frequency Electronics

Advanced Engineering Materials, EarlyView.
This study explores aerosol jet‐printed (AJP) surface roughness, its effects on the performance of microwave electronics, and its process contributors. First, an electromagnetic model is vetted for AJP's unique roughness signature. Simulations are built which show process‐induced roughness is as significant as conductor resistivity in driving microwave
Christopher Areias, Alkim Akyurtlu
wiley   +1 more source

Design, fabrication and calibration of six iridium versus iridium-60 rodium thermocouples Final report [PDF]

Design, and calibration of iridium versus iridium-rhodium ...

core   +1 more source