Results 101 to 110 of about 39,552 (303)

Operando Electrochemical Formation of Integrated Ni‐Fe Oxyhydroxide Anode for Durable Anion Exchange Membrane Water Electrolyzer

Advanced Science, EarlyView.
The interfacial stability and activity of Ni‐Fe‐based AEMWE anodes can be directly enhanced by operando voltage‐cycling in a FeOOH‐containing electrolyte. This process simultaneously induces Ni oxidation and Fe incorporation, forming an integrated, porous (Fe, Ni)OOH layer with high conductivity and durability.
Euntaek Oh, Jonghyun Hyun, Hojin Lee, Changsoo Lee, Jang Yong Lee, Dong Wook Lee, Kyunghwa Seok, Jeesoo Park, Susung Kim, Gisu Doo, Hee‐Tak Kim   +10 more
wiley   +1 more source

stichwort OER

merz | medien + erziehung, 2016
Bildung für alle – frei, gleich, kostenlos. So oder so ähnlich ließe sich die Vision vielleicht zusammenfassen, die hinter dem Phänomen OER, Open Educational Ressources, steht. Wissen, Informationen, (Lern-)Materialien sollen – wenn es nach OER-Befürworterinnen und -Befürwortern geht– jederzeit und für jedermann frei zugänglich sein, sowohl in der ...
openaire   +1 more source

OER: lessons from the field

Insights the UKSG journal, 2019
As open educational resources (OER) expand in the US and elsewhere, attention should be paid to the challenges of implementing OER and solutions to those challenges. OER currently hold great promise for instructing students in K-12 (secondary) and primary school classrooms, because – unlike traditional curriculum materials – OER content can legally and
Roy Kaufman, Andrew Campana
openaire   +4 more sources

Freie Bildungsmedien (OER) Dossier: Offene Bildungsressourcen

, 2013
Das hier vorliegende Dossier, eine Synopse zu internationalen Aktivitäten im Bereich OER und auch eine vertiefende Darstellung von exemplarischen Projekten auf nationaler Ebene, ist wie folgt gegliedert: Um einen möglichst vollständigen und ...
Cohen, Nadia, Blees, Ingo, Massar, Tamara, Deutsches Institut für Internationale Pädagogische Forschung   +3 more
core  

Chiral‐Encoded Pt‐Ir Surfaces as Apparent Spin Filter for Enhanced Oxygen Reduction

Advanced Science, EarlyView.
The Chiral‐Induced Spin Selectivity (CISS) effect is employed in chiral‐encoded mesoporous Platinum‐Iridium (Pt‐Ir) electrocatalysts to enhance the oxygen reduction reaction (ORR). A break in spin symmetry leads to a substantial antagonistic difference in activity (>200%) when comparing two enantiomorphs of the same electrode.
Zikkawas Pasom, Krissanapat Yomthong, Sopon Butcha, Jonas Fransson, Chularat Wattanakit, Alexander Kuhn   +5 more
wiley   +1 more source

Justifying Institutional Investment in OER Development : OERs as Marketing Vehicle

, 2010
The higher education sector has become increasingly competitive and prospective students are adopting a consumerist approach to institution and programme choice. In response, higher education marketing has become more complex, market-oriented and business-like. Financial sustainability of open education resource (OER) projects is a widespread concern.
Lynn, Theo, Muzellec, Laurent, Bruton, Neil   +2 more
openaire   +2 more sources

One‐Dimensional RuIrTe Nanotubes with Amorphous Surface as a Highly Active and Stable Electrocatalyst Toward Oxygen Evolution Reaction in Acidic Media

Advanced Science, EarlyView.
A rational etching‐induced reconstruction strategy is demonstrated to fabricate one‐dimensional RuIrTe ternary nanotubes with a unique amorphous‐crystalline heterostructure. This hierarchical architecture synergistically optimizes mass transport and electronic configurations, delivering record‐breaking performance in proton exchange membrane water ...
Zhi Liang Zhao, Zhe Zhang, Shaoxuan Yang, Jie Zhang, Qi Wang   +4 more
wiley   +1 more source

Unleashing the Power of P‐N Heterojunctions: Optimizing Water Electrolysis Efficiency Through a Cathode‐Driven Electrocatalyst Synergy

Advanced Science, EarlyView.
This groundbreaking contribution to water electrolysis demonstrates that MoSe2/PANI electrocatalysts with a P–N heterojunction effectively balance the overall electrolysis reaction as the cathode, enhance anode performance, and achieve high‐efficiency, low‐energy, simultaneous hydrogen and oxygen production, revealing that the P–N heterojunction ...
Kumasser Kusse Kuchayita, Wei‐Nien Su, Chih‐Chia Cheng   +2 more
wiley   +1 more source

Produção de recursos educacionais abertos com foco na disseminação do conhecimento: uma proposta de framework [PDF]

, 2015
Tese (doutorado) - Universidade Federal da Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia e Gestão do Conhecimento, Florianópolis, 2015.O movimento openness trata o conhecimento como um bem público, e os Recursos Educacionais
Zancanaro, Airton
core  

Orthogonal Design of Competing Deprotonation Process in Cation‐Mediated Ni(OH)2 for Achieving Industrial Level Biomass Electrooxidation

Advanced Science, EarlyView.
A Cu‐mediated Ni(OH)2 catalyst with orthogonal activity by precise valence engineering simultaneously accelerates rate‐determining aldehyde C─H activation in HMF oxidation and impedes O─H deprotonation in competing OER. This multi‐functional synergistic catalysis enables FDCA production at industrial‐level current densities without sacrificing FEFDCA ...
Junge Yang, Zhengjie Chen, Lili Zhang, Tao Zhang, Shida Bao, Jing Peng, Hui Pan, Hui‐Ming Cheng   +7 more
wiley   +1 more source