Results 61 to 70 of about 16,727 (247)

Reduced Graphene Oxide/Polydopamine/Gold Electrode as Elecrochemical Sensor for Simultaneous Determination of Ascorbic Acid, Dopamine, and Uric Acid

International Journal of Electrochemical Science, 2019
In this paper, the reduced graphene oxide/polydopamine (RGO/PDA) nanocomposites are obtained via the reduction of GO nanosheets by dopamine, followed by simultaneous modify by PDA.
Ling Shi, Zefeng Wang, Xianlan Chen, Guangming Yang, Wei Liu   +4 more
doaj   +1 more source

Synthesis of 2-substituted benzimidazole, coumarin, benzo[b][1,4]oxazin and dihydropyrimidinone derivatives using core-shell structured Fe3O4@SiO2-ZnCl2 nanoparticles as an effective catalyst

Results in Chemistry, 2020
In this paper, a magnetic nanocatalyst of Fe3O4@SiO2-ZnCl2 has been used which enhances the synthesis of benzimidazoles, coumarins, benzoxazines and dihydropyrimidinones. To begin with, 2-substituted benzimidazoles have been synthesized in proper to high
Saba Rahimi, Ebrahim Soleimani
doaj   +1 more source

Scalable and Customizable Single‐Atom Coatings for pH‐Universal H2O2 Electrosynthesis

Advanced Materials, EarlyView.
A universal one‐step soot‐deposition route was developed to convert various metal‐containing paraffins into conformal single‐atom catalyst (SAC) coatings on diverse electrodes, yielding robust, efficient SAC‐coated gas diffusion electrodes for H2O2 electrosynthesis.
Yu Li, Linguo Lu, Kunsheng Hu, Minjia Yan, Xi‐Lin Wu, Zhongfang Chen, Xiaoguang Duan   +6 more
wiley   +1 more source

Green and Facile Synthesis of Metal-Organic Framework Cu-BTC-Supported Sn (II)-Substituted Keggin Heteropoly Composites as an Esterification Nanocatalyst for Biodiesel Production

Frontiers in Chemistry, 2020
In the present study, metal-organic framework Cu-BTC-supported Sn (II)-substituted Keggin heteropoly nanocomposite (Sn1.5PW/Cu-BTC) was successfully prepared by a simple impregnation method and applied as a novel nanocatalyst for producing biodiesel from
Qiuyun Zhang, Qiuyun Zhang, Dan Ling, Dandan Lei, Jialu Wang, Xiaofang Liu, Yutao Zhang, Yutao Zhang, Peihua Ma   +8 more
doaj   +1 more source

Understanding the Dynamics of Nanoparticle Formation and Evolution in Functional Oxides via In Situ SAXS/WAXS

Advanced Materials Interfaces, EarlyView.
In situ SAXS/WAXS enables real‐time tracking of nanoparticle formation and evolution in exsolved and infiltrated Ni‐based perovskites under reducing conditions. The combined technique captures nucleation, growth, and coarsening dynamics with high temporal resolution, providing statistically robust insights into structural and morphological ...
Elena Vicente, Sylvio Haas, Jose Manuel Serra, María Balaguer, Cecilia Solís   +4 more
wiley   +1 more source

Unearthing Atomic Dynamics in Nanocatalysts

ACS Applied Materials & Interfaces
Being able to access the rich atomic-scale phenomenology, which occurs during the reactions pathways, is a pressing need toward the pursued knowledge-based design of more efficient nanocatalysts, precisely tailored atom by atom for each reaction. However, to reach this goal of achieving maximum optimization, it is mandatory, first, to address how ...
Antonio J. Martínez-Galera, Rocío Molina-Motos, José M. Gómez-Rodríguez   +2 more
openaire   +3 more sources

Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact

Advanced Materials Technologies, EarlyView.
This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt, Katja Lange, Robert Göckeritz, Erik Grunwald, Angelika Hähnel, Alexander Müller, Volker Naumann, Sistan Rasuli, Wolfram Münchgesang, Bruno G. Pollet, Kerstin Witte‐Bodnar, Klemens Ilse   +11 more
wiley   +1 more source

Silver incorporated into g-C3N4/Alginate as an efficient and heterogeneous catalyst for promoting click and A3 and KA2 coupling reaction

Scientific Reports, 2021
Fe3O4/g-C3N4/Alginate-Ag nanocomposite as a novel and effective nanocatalyst was successfully prepared. This nanocomposite was fully characterized using several techniques such as X‐ray diffraction (XRD), field emission scanning electron microscopy with ...
Mansoureh Daraie, Majid M. Heravi, Pourya Mohammadi, Ali Daraie   +3 more
doaj   +1 more source

Stabilization of Single Metal Atoms on Graphitic Carbon Nitride: Synthetic Strategies and Emerging Applications

Advanced Science, EarlyView.
This review highlights recent advancements in stabilizing single metal atoms on graphitic carbon nitride emphasizing innovative synthesis strategies and emerging applications in electrocatalysis, photocatalysis and organic transformations, along with key challenges and future perspective. Abstract Emerging as a new frontier in catalysis science, single‐
Wenyao Zhang, Junjie Cui, Zhenjie Yao, Boyuan Zhu, Nithinraj Panangattu Dharmarajan, Ajayan Vinu, Junwu Zhu   +6 more
wiley   +1 more source

Synthesis of 3-alkenylindoles through regioselective C–H alkenylation of indoles by a ruthenium nanocatalyst

Beilstein Journal of Organic Chemistry, 2020
3-Alkenylindoles are biologically and medicinally very important compounds, and their syntheses have received considerable attention. Herein, we report the synthesis of 3-alkenylindoles via a regioselective alkenylation of indoles, catalysed by a ...
Abhijit Paul, Debnath Chatterjee, Srirupa Banerjee, Somnath Yadav   +3 more
doaj   +1 more source