Results 201 to 210 of about 184,587 (385)

Evaluating three different Open Educational Resource models provided to enable Learning in Our Connected World

open access: yes, 2010
The swift advancement of Web technologies has provided real opportunities for improving access, transfer and sharing of knowledge and information. One of the outcomes facilitated by these technologies is the Open Educational Resources (OER) movement ...
Cagiltay, Kursat   +3 more
core  

Ni Single‐Atom Modulation of Ti‐O Covalency Boosts Ammonia Oxidation Electrocatalysis

open access: yesAdvanced Science, EarlyView.
A Ni single‐atom‐induced enhancement of Ti‐O covalency in Ni SAC@TiO2 generates abundant active sites and promotes selective NHx‐NHy mediated N2 evolution while suppressing poisonous NOx formation, achieving nearly doubled AOR activity with excellent durability.
Subhash Chandra Shit   +7 more
wiley   +1 more source

Non‐Equilibrium Synthesis Methods to Create Metastable and High‐Entropy Nanomaterials

open access: yesAdvanced Science, EarlyView.
ABSTRACT Stabilizing multiple elements within a single phase enables the creation of advanced materials with exceptional properties arising from their complex composition. However, under equilibrium conditions, the Hume–Rothery rules impose strict limitations on solid‐state miscibility, restricting combinations of elements with mismatched crystal ...
Shuo Liu   +3 more
wiley   +1 more source

Social networking and open educational resources: updating quality assurance for e-learning excellence

open access: yes, 2012
Quality assurance approaches in higher education are well-established, but it is important to develop methods which are applicable to the domain of e-learning.
Kear, Karen   +2 more
core  

Lattice Carbon‐Mediated Ultralow‐Barrier C–C Coupling for Selective CO Electroreduction to Ethylene

open access: yesAdvanced Science, EarlyView.
Combined DFT and molecular dynamics simulations reveal that while the lattice carbon at the MXene edge cannot directly bind CO2 to form ethylene, it acts as an active center to promote C─C coupling between adjacent *CO intermediates for ethylene production.
Jiangke Tao   +5 more
wiley   +1 more source

In-situ total X-ray scattering reveals the structural evolution of SrIrO<sub>3</sub> during the oxygen evolution reaction. [PDF]

open access: yesSci Rep
Kobayashi K   +12 more
europepmc   +1 more source

Enhancing Interfacial Dioxygen Bridging Dynamics of Waste‐Derived Cathode Catalysts for Augmented High‐Rate Performance in Li‐O2 Batteries

open access: yesAdvanced Science, EarlyView.
This study fabricates Fine Slag/Ti4O7@TiC hybrids with interfacial dioxygen bridge coupling to optimize oxygen redox dynamics in lithium‐oxygen batteries (LOBs). Lattice distortion from oxygen vacancies and inherent charge repulsion of Ti‐O‐C interfacial coupling reconstruct and refine the surface coordination environment.
Jixiong Zhang   +6 more
wiley   +1 more source

Heterophase RuO<sub>2</sub> oxygen evolution catalyst for durable proton exchange membrane water electrolysis. [PDF]

open access: yesSci Adv
Chen G   +13 more
europepmc   +1 more source

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