نتایج جستجو برای: la3 co3o4 nanoflowers

تعداد نتایج: 2173  

Journal: :Nanoscale 2010
Caixia Xu Rongyue Wang Yan Zhang Yi Ding

A general corrosion strategy was employed for the straightforward fabrication of a variety of metal oxide nanostructures, such as Fe3O4 octahedra, Co3O4 nanoplates, nanoporous TiO2, and Mn3O4 octahedra.

Journal: :Journal of bacteriology 1988
M Fletcher

The influence of Na+, Ca2+, La3+, and Fe3+ on the adhesion of Pseudomonas fluorescens H2 and H2S was investigated with interference reflection microscopy (IRM). IRM is a light microscopy technique which allows (i) visualization of the adhesive sites of living bacteria as they attach to a glass cover slip surface and (ii) evaluation of the bacterium-glass surface separation distance within a ran...

2012
Siama Zaman Gul Amin Omer Nur Magnus Willander S. Zaman M. Willander

Well-crystallized flower-shaped copper oxide nanostructures composed of thin leaves have been synthesized by simple low-temperature chemical bath method and used to fabricate pH sensors. We examined the effect of the pH on the growth of the CuO nanostructures. By changing the pH of the precursor solution different morphologies of the CuO nanostructures were obtained. CuO nanoflowers have recent...

Journal: :Lecture Notes in Computer Science 2022

Automated augmentation is an emerging and effective technique to search for data policies improve generalizability of deep neural network training. Most existing work focuses on constructing a unified policy applicable all samples in given dataset, without considering sample or class variations. In this paper, we propose novel two-stage algorithm, named Label-Aware AutoAugment (LA3), which take...

2016
Jesús-Alejandro Peña-Jiménez Federico González Rigoberto López-Juárez José-Manuel Hernández-Alcántara Enrique Camarillo Héctor Murrieta-Sánchez Lorena Pardo María-Elena Villafuerte-Castrejón

The solid-state method was used to synthesize single phase potassium-sodium niobate (KNN) co-doped with the La3+-Mn4+ and Eu3+-Fe3+ ion pairs. Structural determination of all studied solid solutions was accomplished by XRD and Rietveld refinement method. Electron paramagnetic resonance (EPR) studies were performed to determine the oxidation state of paramagnetic centers. Optical spectroscopy me...

Journal: :Angewandte Chemie 2023

Die elektrochemische Umwandlung von Nitrat in Ammoniak ist ein wichtiger und nachhaltiger Ansatz zur Wiederherstellung des weltweit gestörten Stickstoffkreislaufs. rationale Entwicklung Katalysatoren für die Nitratreduktionsreaktion (NO3RR) auf der Grundlage eines detaillierten Verständnisses Reaktionsmechanismus großer Bedeutung. Wir berichten über einen Cu2O+Co3O4-Tandemkatalysator, NH3-Produ...

Journal: :Separation and Purification Technology 2021

As phenol represents as the most typical persistent organic pollutants in wastewater, SO4•−-involved chemical oxidation techniques using monopersulfate (MPS) have been regarded a promising method to eliminate phenol. Since Co3O4 is benchmark heterogeneous catalyst for activating MPS, it highly critical investigate shape-varied catalysts with well-defined crystal planes MPS degrade Thus, aim of ...

Journal: :Physical chemistry chemical physics : PCCP 2014
Changhui Zhao Baoyu Huang Jinyuan Zhou Erqing Xie

Porous Co3O4 nanonetworks (NNWs), converted from precursor CoOOH nanosheets, have been synthesized via a controllable chemical reaction route followed by calcination at 400 °C in air. The morphologies and microstructures of the precursor nanosheets and the final products were characterized by high-resolution transmission electron microscopy and X-ray diffraction, respectively. The growth mechan...

Journal: :Journal of Nanoengineering and Nanomanufacturing 2011

Journal: :Chemosensors 2023

In this work, ZIF-8-derived Co3O4@ZnO microspheres were prepared by a liquid-phase concentration-controlled nucleation strategy. The results of the material characterization showed that obtained, and surface structure could be controlled with concentration ligand. Compared pure Co3O4 microspheres, operating temperature optimized increased 90 °C after gas-sensing test. response to 50 ppm acetone...

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