Results 31 to 40 of about 4,122 (192)

Synergetic Combination of Carbon Xerogels, Graphene Oxide and nano‐ZnO for Aqueous and Organic Supercapacitors

Batteries &Supercaps, Volume 8, Issue 3, March 2025.
This work proposes the synthesis of carbon‐based nanostructured materials obtained using ZnO as both nanos‐ template and catalysts simultaneously. During the synthesis, GO was used as a stabiliser, preventing the collapse of the 3D structure and improving its properties in terms of capacitance and surface area.
Rusbel Coneo‐Rodríguez, Alvaro Yamil Tesio, Fernando Pablo Cometto, Gustavo Marcelo Morales, Gabriel Ángel Planes, Alvaro Caballero   +5 more
wiley   +1 more source

ESTUDIO COMPARATIVO ENTRE BIOAPATITA E HIDROXIAPATITA SINTÉTICA OBTENIDA POR PRECIPITACIÓN QUÍMICA Y SÍNTESIS MECANOQUÍMICA

Revista de Investigación de Física, 2009
Se presenta un estudio comparativo entre la componente inorgánica de una muestra de tejido óseo humano respecto de apatitas sintetizadas mediante precipitación química, síntesis mecanoquímica y una muestra de hidroxiapatita comercial. Las muestras fueron
J. Quispe M., M. Moreno, J. Montano, A. Guzman, A. Cavero, M. Arce, M. Pillaca   +6 more
doaj   +1 more source

Tetranuclear coordination assemblies based on half-sandwich ruthenium(II) complexes. Non covalent binding to DNA and cytotoxicity. [PDF]

, 2009
The reaction of [(cymene)RuCl2]2 with K2Hoxonate (H3oxonic = 4,6-dihydroxy-2-carboxy-1,3,5-triazine acid) in methanol leads to the formation of the dinuclear half-sandwich ruthenium(II) complex [(cymene)2Ru2(\u3bc-Hoxonato)Cl2] (1a).
Barea, Elisa, Galindo, Miguel Angel, Galli, Simona, Linares, Fatima, Navarro, Jorge A.R., Romero, M. Angustias   +5 more
core   +1 more source

Directed Charge Transfer‐Driven Efficient Photocatalytic Hydrogen Production in Dual S‐Scheme WS2/Co9S8/ZnCdS Heterojunction

Carbon Energy, EarlyView.
The photocatalytic hydrogen evolution reaction (HER) activity of the polyoxometalate (POM)‐derived dual S‐scheme heterojunction photocatalyst WS2/Co9S8/ZnCdS reaches a value as high as 15.66 mmol g−1 h−1 under visible light (λ ≥ 420 nm), providing a straightforward approach for the development of dual S‐scheme heterojunctions to enhance the efficiency ...
Shuanghe Fu, Zhi Cai, Haijun Pang, Carlos J. Gómez‐García, Qiong Wu, Xinming Wang, Guixin Yang, Xiaojing Yu, Yongbin Song, Chunjing Zhang, Zhengyao Qiu, Tianqi Guo, Zhipeng Yu   +12 more
wiley   +1 more source

Revista Espinhaço entrevista Profa. Flaviana Tavares (UFVJM)

Revista Espinhaço, 2019
A Profa. Flaviana Tavares é graduada em Ciências Naturais e Licenciada em Química. Mestre em Agroquímica. Doutora em Química Inorgânica. Professora da UFVJM desde 2009. Nessa entrevista, a Profª. Flaviana Tavares fala sobre um tema importantíssimo para o
Douglas Sathler
doaj   +1 more source

Arene Incorporation and Ring Expansion in the Thermal Decomposition of a Divanadium(III) Complex With Four Bridging Methyl Groups

Chemistry – A European Journal, EarlyView.
Thermolysis of [{VCp*(µ‐CH3)2}2] (Cp* = η5‐C5Me5) in hexane leads to a tetranuclear cube‐type methylidene complex [{VCp*(µ3‐CH2)}4], while in benzenic solvents C6H5R produces the formal insertion of a CH fragment into the six‐membered aromatic ring of a solvent molecule to give trovacene derivatives with η7‐cycloheptatrienyl ligands [VCp*(η7‐C7H6R ...
Adrián Calvo‐Molina, Rodrigo González‐Prieto, Jesús Jover, Adrián Pérez‐Redondo, José Luis Priego, Carlos Yélamos   +5 more
wiley   +1 more source

LAS TECNOLOGÍAS DE LA INFORMACIÓN Y LAS COMUNICACIONES EN LA FORMACIÓN DEL PROFESIONAL DE LA CARRERA DE QUÍMICA

Tecnología Educativa, 2018
Este trabajo contribuye a solucionar carencias relacionadas con el empleo de las aulas virtuales en el aprendizaje de la Química Inorgánica de los profesionales en formación, donde aún no se satisfacen las necesidades e intereses de los estudiantes, de ...
María Teresa Serrano Rodríguez, Abraham Salinas Castellanos, Gilberto Cuba Ricardo, Roberto Pérez Almaguer   +3 more
doaj   +2 more sources

Programming the Optoelectronic Properties of Atomically Precise Gold Nanoclusters Using the Conformational Landscape of Intrinsically Disordered Proteins

Chemistry – A European Journal, EarlyView.
ABSTRACT The rational design of hybrid nanomaterials with precisely controlled properties remains a central challenge in materials science. While atomically precise gold nanoclusters (Au‐NCs) offer molecule‐like control over a metallic core, tuning their optoelectronic behavior via surface engineering is often empirically driven.
Santiago Rodriguez, Sylvain Kumanski, Zeineb Ayed, Aurélie Fournet, Charlène Bouanchaud, Amin Sagar, Frédéric Allemand, Vladimir A. Baulin, Ute Resch‐Genger, Juan Cortés, Nathalie Sibille, Fabien Chirot, Karl David Wegner, Rodolphe Antoine, Xavier Le Guével, Pau Bernadó   +15 more
wiley   +1 more source

Reversible I2 Uptake Induces Record‐High Spin‐Crossover Hysteresis in a Fe(II) Hofmann‐Type MOF

Chemistry – A European Journal, EarlyView.
Reversible iodine uptake in a flexible Fe(II) Hofmann‐type MOF [Fe(pz)Pd(CN)4] induces record‐wide SCO hysteresis. Gas‐phase I2 acts as internal chemical pressure, stabilizing both high‐spin and LS states without altering the framework, providing a general strategy for tunable bistability in coordination networks.
Mario Pacheco, Higinio Maqueda‐Márquez, Annena Jesuman, Ana Belén Gaspar   +3 more
wiley   +1 more source

Evidence For An Unusual Kinetic Phenomenon In The Metallation Of Porphyrins [PDF]

, 1991
Reaction of copper(II) with water soluble porphyrins (H₂porph) in the presence of ethylenediamine shows an unusual and so far unreported kinetic phenomenon that can be explained in terms of supramolecular assembly formation apparently involving all ...
González-Vílchez, F., Pasternack, Robert F., Vilaplana, R. A.   +2 more
core   +2 more sources