Results 1 to 10 of about 521,898 (197)

Regulating Fe-spin state by atomically dispersed Mn-N in Fe-N-C catalysts with high oxygen reduction activity

open access: yesNature Communications, 2021
As low-cost electrocatalysts for oxygen reduction reaction applied to fuel cells and metal-air batteries, atomic-dispersed transition metal-nitrogen-carbon materials are emerging, but the genuine mechanism thereof is still arguable.
Gege Yang   +14 more
semanticscholar   +1 more source

Sustained CO2-photoreduction activity and high selectivity over Mn, C-codoped ZnO core-triple shell hollow spheres

open access: yesNature Communications, 2021
Solar conversion of CO2 into energy-rich products is one of the sustainable solutions to lessen the global energy shortage and environmental crisis. Pitifully, it is still challenging to attain reliable and affordable CO2 conversion.
M. Sayed   +6 more
semanticscholar   +1 more source

Ultrashort Mn–Mn Bonds in Organometallic Complexes [PDF]

open access: yesThe Journal of Physical Chemistry C, 2017
9 pages, 8 ...
Tomás Alonso-Lanza   +3 more
openaire   +3 more sources

THE NATURE OF Mn-Mn COUPLING IN Mn-Ni-Al ALLOYS

open access: yesStudia Universitatis Babeș-Bolyai Physica, 2021
The occurrence of ferro - and antiferromagnetism in Mn-Ni-Al alloys is governed by the sign of the direct exchange interaction between the Mn magnetic ions. Experimentally has been found that, if the separation between the Mn magnetic ions is greater than the critical value dcr= 2.91 Å, they are ferromagnetic and if the distance is less than the ...
V. REDNIC, M. COLDEA, V. POP, M. NEUMANN
openaire   +1 more source

A Mn-N3 single-atom catalyst embedded in graphitic carbon nitride for efficient CO2 electroreduction

open access: yesNature Communications, 2020
Developing effective catalysts based on earth abundant elements is critical for CO2 electroreduction. However, simultaneously achieving a high Faradaic efficiency (FE) and high current density of CO (jCO) remains a challenge.
Jiaqi Feng   +9 more
semanticscholar   +1 more source

Comment on “Mn Interstitial Diffusion in (Ga,Mn)As” [PDF]

open access: yesPhysical Review Letters, 2005
The magnetic and transport properties of (GaMn)As are known to be influenced by postgrowth annealing, and it is generally accepted that these modifications are due to outdiffusion of Mn interstitials. We show that the annealing-induced modifications are strongly accelerated if the treatment is carried out under As capping.
M. Adell   +5 more
openaire   +2 more sources

Mn-containing bioceramics inhibit osteoclastogenesis and promote osteoporotic bone regeneration via scavenging ROS

open access: yesBioactive Materials, 2021
Osteoporosis is caused by an osteoclast activation mechanism. People suffering from osteoporosis are prone to bone defects. Increasing evidence indicates that scavenging reactive oxygen species (ROS) can inhibit receptor activator of nuclear factor κB ...
Jianmei Li   +7 more
semanticscholar   +1 more source

Measured lifetimes of metastable levels of Mn X, Mn XI, Mn XII, and Mn XIII ions [PDF]

open access: yesPhysical Review A, 1999
An ion storage technique, based on the capture of metastable multiply charged ions from an external ion source into a Kingdon ion trap, has been used to measure the lifetimes of eight metastable levels of Mn ions with ${3s}^{2}{3p}^{k}$ configurations, $k=1--4.$ Although several lifetime calculations exist, some of the transition wavelengths have not ...
Moehs, D. P., Church, David A.
openaire   +2 more sources

Spatial Structure of Mn-Mn Acceptor Pairs in GaAs [PDF]

open access: yesPhysical Review Letters, 2005
The local density of states of Mn-Mn pairs in GaAs is mapped with cross-sectional scanning tunneling microscopy and compared with theoretical calculations based on envelope-function and tight-binding models. These measurements and calculations show that the crosslike shape of the Mn-acceptor wavefunction in GaAs persists even at very short Mn-Mn ...
Yakunin, A.M.   +7 more
openaire   +4 more sources

Time Toxicity in Wilms Tumor: Quantifying the Burden of Healthcare Interaction in the First Year After Diagnosis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Wilms tumor (WT) treatment imposes a significant time burden on patients and their families. Time toxicity is a patient‐centered metric that quantifies the burden of healthcare interaction. We sought to define time toxicity in the first year after diagnosis of WT and hypothesized that it would increase as tumor stage and treatment ...
Caleb Q. Ashbrook   +6 more
wiley   +1 more source

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