Results 51 to 60 of about 34,775 (190)

¿Microescala o reducción de escala? Perspectivas en Química Inorgánica

Educación Química, 2018
Éste es un breve resumen de la presentación dada en el Quinto Congreso de Química de América del Norte, celebrado en Cancún, Quintana Roo, México, en noviembre 1997. Se presentan varias alternativas posibles para la reducción de escala en experimentos de
David E. Berry
doaj   +1 more source

Elaboración del manual de química inorgánica y guia de tratamiento de residuos peligrosos (RESPEL) [PDF]

, 2012
La química cumple un papel importante en la vida del hombre a nivel personal e industrial por sus múltiples campos de acción tales como la orgánica , inorgánica, fisicoquímica, bioquímica y química analítica, el presente estudio se centrará en la química
Echeverry L., Luisa Fernanda, Ramírez Castaño, Francy Julieth   +1 more
core  

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

Gamificación como estrategia para mejorar el rendimiento académico en el laboratorio de Química Inorgánica

Educación Química
El sistema educativo está en constante actualización mediante la incorporación de nuevas estrategias y herramientas didácticas. En este sentido, la gamificación es una estrategia que ha cobrado relevancia y cuyo objetivo es fortalecer el proceso de ...
Ricardo Adolfo Manivel Chávez, Mireya Ramos Rendón, Rosalynda Sánchez Vázquez, Ana Gabriela Campos Arroyo   +3 more
doaj   +1 more source

Removing lead from water with carboxylate dendrimers and magnetic nanoparticles modified with carboxylate dendrimers

Applied Water Science, 2023
Contamination of water with heavy metals as lead (Pb2+) is a relevant problematic issue. In this work, we have tested different types of dendritic materials for lead removal from water and further recovery. The systems employed are magnetic nanoparticles
David Rincón-Montón, David Martínez-Salvador, Javier Sánchez-Nieves, Rafael Gómez, F. Javier de la Mata, Jesús Cano   +5 more
doaj   +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

Design, Synthesis and Structural Characterization of a Novel Asymmetric Hydrazone-Thiosemicarbazone Ligand with the Aim of Obtaining Interesting Metallosupramolecular Architectures

Chemistry Proceedings, 2021
The asymmetric hydrazone-thiosemicarbazone ligand H2L was synthesized in two stages by means of a double-condensation reaction. The potentially dianionic and pentadentate [N3SO] organic ligand H2L possesses two flexible bidentate [NS/NO] domains ...
Sandra Fernández-Fariña, Isabel Velo-Heleno, Miguel Martínez-Calvo, Ana M. González-Noya, Rosa Pedrido   +4 more
doaj   +1 more source

Aromaticity-Induced Spin State Switching and High-Spin States in Non-Alternant Polyradicals. [PDF]

J Comput Chem
The peculiar topology of some non‐alternant systems allows such a degree of freedom in favored spin‐alignment between unpaired electrons that the polyradical can be in low‐, intermediate‐, and high‐spin ground state. Thus, the modulation of resonance energy upon distortions of pro‐aromatic units via external stimuli may result in switching the lowest ...
Betkhoshvili S, de P R Moreira I, Poater J, Bofill JM.   +3 more
europepmc   +2 more sources

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

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