Results 81 to 90 of about 8,306,498 (283)

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

Advanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen, Bapan Biswas, Apinya Ngoipala, Julia Wiktor, Ujjwal Pal, Shalini Singh   +5 more
wiley   +1 more source

Green and Low‐Carbon Synthesis of Lithium Sulfide (Li2S): From Fundamental Mechanisms to Scalable Manufacturing for Next‐Generation Energy Storage

Advanced Science, EarlyView.
This review focuses on green synthesis routes for lithium sulfide (Li2S)—a key material for lithium–sulfur batteries and sulfide solid electrolytes, whose traditional carbothermal reduction remains energy‐intensive and unsustainable. Specifically examined routes include low‐temperature solid‐state reactions, magnesiothermal reduction, and solution ...
Aiping Peng, Xingtao Qi, Lingfeng Zhu, Ningrui Zhan, Yaohui Qu, Hui Li, Hai Zhang, Fan Wang, Ze Zhang, Xuewen Wang, Zhenyu Yang, Tianyi Ma   +11 more
wiley   +1 more source

Measuring Local Exothermic Effects During the Oxidative Coupling of Methane Using Operando Luminescence Thermometry

Angewandte Chemie, EarlyView.
Operando luminescence thermometry shows that the local catalyst temperature can exceed the set oven temperature by almost 250°C during the exothermic oxidative coupling of methane process. We demonstrate how the reactor dimensions, catalyst grain size, and reactant feed mixture affect the local temperature.
Daniël W. Groefsema, Freddy T. Rabouw, D. Michiel Boele, A.N. René Bos, Alexander P. van Bavel, Bert M. Weckhuysen   +5 more
wiley   +2 more sources

Incorporación de valor social a la contratación pública en España: Situación y perspectivas

Revista de Estudios de la Administración Local y Autonómica, 2016
La consideración del valor social en las transacciones con capital público debería ser un garante de mejora en las sociedades actuales. La inclusión de un reconocimiento e impulso de iniciativas de tipo social o medioambiental, por parte de las entidades
Marta Solorzano García, Julio Navío Marco, Raúl Contreras Comeche   +2 more
doaj   +3 more sources

EL VALOR SOCIAL EN EL DISCURSO DEL ESTUDIANTE DE ENFERMERÍA: UN ENCUENTRO FENOMENOLÓGICO CON MAX SCHELER

, 2016
O objetivo deste estudo foi identificar e compreender, no discurso do discente, o valor social e discuti-lo a luz de alguns pressupostos de Max Scheler. O discente concluinte do Curso de enfermagem ocupa lugar existencial no mundo, dando-lhe significado ...
Gilberto de Lima Guimarães, T. C. M. Chianca, Vania Regina Goveia, Kleyde Ventura de Souza, Isabel Yovana Mendoza, L. D. O. Viana   +5 more
semanticscholar   +1 more source

Thermally Assisted Photocatalytic Dehydrogenation of Methanol in Continuous Steady‐State Operation

Advanced Science, EarlyView.
Thermally assisted photocatalytic methanol dehydrogenation on Pt/TiO2 enables formaldehyde and hydrogen production far beyond thermodynamic limits. Continuous operation delivers up to 95% selectivity over 70 h, and oxygen microdosing strongly boosts conversion by regenerating surface oxygen sites.
Stubenrauch Florian, Nathrath Phillip, Schörner Markus, Mahayni Yazan, Fritsch Birk, Hutzler Andreas, Wasserscheid Peter, Bösmann Andreas, Schühle Patrick   +8 more
wiley   +1 more source

El constructo Valor Social Subjetivo de la Educación: validación cruzada entre profesorado de escuela y universidad

, 2016
Education possesses an evident social value that can be shown by indicators of socioeducational assessments. While the relationship between educational context and performance is apparent in several countries, this relationship is losing consistency in ...
Carlos Sancho-Álvarez, J. M. Jornet, J. González-Such   +2 more
semanticscholar   +1 more source

Single–Atom Iron Sites Enable Enhanced Arsenic Removal From Water Through Synergistic Adsorption–Oxidation

Advanced Science, EarlyView.
Single–atom iron anchored on nitrogen–doped porous biochar exhibited ultra–efficient performance, exceptional environmental resilience, and integrated adsorption–oxidation functionality. The multifunctional architecture of the support and the unparalleled reactivity of single–atom iron underpinned the cooperative adsorption and oxidation of As(III ...
Tao Sun, Chao Wang, Shihang Wu, Xiaojia Zhou, Penggang Pei, Huijuan Yu, Yun Zhang, Qingqing Huang, Yuebing Sun   +8 more
wiley   +1 more source

Incorporation of Organic Counter‐Cations Into Poly(Heptazine Imide) Networks for Promoting Proton‐Coupled Electron Transfer During Photocatalytic H2O2 Evolution

Angewandte Chemie, EarlyView.
Incorporation of N‐based onium ions into the ionic framework of poly(heptazine imide) was obtained via protonation‐deprotonation of PHI frameworks arising from a parent Na‐containing analogue. Particularly, methylammonium moieties, through their small molecular size, hydrogen bonding capabilities and rotational mobility, appear to stabilize ...
Dingqiao Ji, Hikmat Binyaminov, Desiree Leistenschneider, Martin Oschatz, Paolo Giusto, Markus Antonietti, Horațiu Szalad   +6 more
wiley   +2 more sources

Emprendimiento Social. Autoempleo y extracción del valor en la era post-crisis

Revista de Antropología Social, 2019
El fenómeno del emprendimiento social surgido en Cataluña a partir de la crisis del 2008 se presenta como una alternativa ocupacional promovida por actores financieros y administraciones públicas para responder a dos problemas agravados por la crisis ...
Hugo Valenzuela-Garcia, J. Molina, Miranda J. Lubbers, Paula Escribano, S. Fuentes   +4 more
semanticscholar   +1 more source