Results 71 to 80 of about 66,984 (246)

PtRu/C and PtRuBi/C Electrocatalysts Prepared in Two Different Ways by Borohydride Reduction for Ethanol Electro-Oxidation

International Journal of Electrochemical Science, 2010
PtRu/C (50:50) and PtRuBi/C (50:40:10) electrocatalysts were prepared by borohydride reduction using H2PtCl6.6H2O, RuCl3.xH2O and Bi(NO3)3.5H2O as metals sources and Vulcan XC72 as support.
Michele Brandalise, Marcelo Marques Tusi, Ricardo Marcelo Piasentin, Marcelo Linardi, Estevam Vitorio Spinacé, Almir Oliveira Neto   +5 more
doaj   +1 more source

Machine Learning‐Assisted Infectious Disease Detection in Low‐Income Areas: Toward Rapid Triage of Dengue and Zika Virus Using Open‐Source Hardware

Advanced Intelligent Discovery, EarlyView.
This study introduces an affordable machine learning platform for simultaneous dengue and zika detection using fluorine‐doped tin oxide thin films modified with gold nanoparticles and DNA aptamers. Designed for low‐cost, hardware‐limited devices (< $25), the model achieves 95.3% accuracy and uses only 9.4 kB of RAM, demonstrating viability for resource‐
Marina Ribeiro Batistuti Sawazaki, Bassam Bachour Junior, Marcelo Mulato, José Ilton de Oliveira Filho   +3 more
wiley   +1 more source

Selenium Nanomaterials for Wound Healing: Synergistic Strategies from Anti‐Infection to Tissue Regeneration

Advanced NanoBiomed Research, EarlyView.
Selenium nanoparticles (SeNPs) are emerging as multifunctional platforms for wound healing, integrating antimicrobial, anti‐inflammatory, and proregenerative activities. This review summarises key mechanisms and recent advances in SeNP‐enabled composite dressings, immunomodulatory nanocomposites, microenvironment‐responsive hydrogels, photothermal and ...
Yangxia Chen, Xiaoshuang Liang, Sirui Li, Shuoshan Li, Wei Liu, Yingping Lin, Siqi Li, Zehang Zhang, Judun Zheng, Tianfeng Chen, Rongyi Chen   +10 more
wiley   +1 more source

Integrating agro‐residue valorization and clean hydrogen production: coconut fiber‐based catalysts for NaBH4 hydrolysis

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract A novel phosphoric acid‐treated green coconut fiber (GCF‐C) was developed as a catalyst for hydrogen production from the hydrolysis of sodium borohydride (NaBH4). Characterization techniques confirmed structural modifications, including X‐ray diffraction, scanning electron microscopy, X‐ray fluorescence, Fourier transform infrared, and ...
Isabelly Silveira Freitas, Francisco Izaias da Silva Aires, Dayana Nascimento Dari, Jacob Tchiyeke António Kandjila, Maurício Quintas Salamba, Diego Lomonaco, Monalisa Moura de Oliveira, Pierre Basílio Almeida Fechine, Rafael Leandro Fernandes Melo, Alan Silva de Menezes, Marcos Carlos de Mattos, Leonardo Farias Serafim, Maria Cristiane Martins de Souza, Ada Amelia Sanders Lopes, John Herbert da Silva Felix, Eveline de Abreu Menezes, José Cleiton Sousa dos Santos   +16 more
wiley   +1 more source

Solid-State NaBH₄/Co Composite as Hydrogen Storage Material: Effect of the Pressing Pressure on Hydrogen Generation Rate

Energies, 2019
A solid-state NaBH4/Co composite has been employed as a hydrogen-generating material, as an alternative to sodium borohydride solutions, in the long storage of hydrogen.
Olga V. Netskina, Elena S. Tayban, Anna M. Ozerova, Oxana V. Komova, Valentina I. Simagina   +4 more
doaj   +1 more source

Operational stability of mixed Sn–Pb perovskite solar cells: Mechanisms, mitigation strategies, and perspectives

Bulletin of the Korean Chemical Society, EarlyView.
This review consolidates mechanisms and solutions for mixed Sn–Pb perovskite solar cells. It identifies Sn2+ oxidation, iodine generation, and interfacial defects as primary instabilities. It discusses progress in additives, interface passivation, alternative hole transport layers, and solvent engineering as well as future directions for achieving long‐
Lei Chen, Kai Zhu
wiley   +1 more source

Investigation Towards the Asymmetric CBS‐Catalysed Reduction of Aryl Methyl Ketones with Electrochemically in Situ Generated BH3

ChemElectroChem
The aim of this investigation was to explore the possibility to perform an asymmetric reduction, utilising a CBS‐type catalyst, of prochiral aryl methyl ketones under electrochemical conditions to generate the needed BH3 upon oxidation of NaBH4 with in ...
Marvin L. Abraham, Prof. Dr. Gerhard Hilt   +1 more
doaj   +1 more source

Synthesis and Characterization of π‐Extended Azulenes via Nucleophilic Substitution and Intramolecular Cyclization of 5‐Alkynyl‐6‐Fluoroazulenes

ChemistryEurope, EarlyView.
A modular synthetic approach enables the preparation of azulene‐fused heterocycles via nucleophilic aromatic substitution followed by intramolecular cyclization of alkynyl fluoroazulenes. The method allows the incorporation of various heteroatoms (N, O, S, Se, and Te), leading to structurally diverse heteroannulated azulenes.
Martin C. Dietl, Matthias Scherr, Christopher Hüßler, Henrik T. Habeck, Carmen L. M. Henel, Jürgen Graf, Frank Rominger, Matthias Rudolph, A. Stephen K. Hashmi   +8 more
wiley   +1 more source

Reversible Hydrogen Storage in Solid‐State Reaction Derived Core‐Shell NaBH4@Ni Nanocubes

Advanced Energy & Sustainability Research
The method to synthesize high‐capacity complex hydride nanostructures, such as borohydrides, decorated with metallic shells has surfaced as an attractive approach for enabling reversible hydrogen storage.
Muhammad Saad Salman, Kondo-Francois Aguey-Zinsou   +1 more
doaj   +1 more source

Hydroxy terminated perfluoro ethers Patent [PDF]

, 1971
Chemical synthesis of hydroxy terminated perfluoro ethers as intermediates for highly fluorinated polyurethane ...
Rochow, S. E., Stump, E. C., Jr.
core   +1 more source