Results 11 to 20 of about 974 (182)

Microwave-assisted synthesis of SiO2 nanoparticles and its application on the flame retardancy of poly styrene and poly carbonate nanocomposites [PDF]

Journal of Nanostructures, 2015
Various morphologies of silica nanoparticles were synthesized by a microwave-assisted Pechini method. Silica nanostructures were synthesized via a fast reaction between tetra ethyl ortho silicate and ammonia at presence citric acid and other effective ...
A. Esmaeili-Bafghi-Karimabad, D. Ghanbari, M. Salavati-Niasari, H. Safardoust-Hojaghan   +3 more
doaj   +1 more source

TỔNG HỢP CHẤT MÀU XANH COBAN CoxMg1–xAl2O4 DÙNG TRONG GỐM SỨ BẰNG PHƯƠNG PHÁP PECHINI

Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên, 2019
Bài báo trình bày quá trình tổng hợp chất màu xanh coban CoxMg1–xAl2O4 (x = 0,1÷0,9) theo phương pháp Pechini. Các đặc trưng của sản phẩm chất màu được xác định bởi phương pháp nhiễu xạ tia X (XRD), phân tích nhiệt (TG–DSC), hiển vi điện tử quét (SEM ...
Tran Ngoc Tuyen, Ho Van Minh Hai, Nguyen Duc Hoang   +2 more
doaj   +1 more source

Conductivity and microstructural evaluation of SGDC solid electrolytes synthetized by Pechini and controlled precipitation

Boletín de la Sociedad Española de Cerámica y Vidrio, 2022
In this work, controlled precipitation synthesis methods and polymeric precursors (Pechini) were used to obtain gadolinium-doped cerium oxide solid electrolytes (Ce0.8Gd0.2O1.9) and double-doped cerium oxide with gadolinium and samarium (Ce0.8Gd0.2 ...
Paola Cristina Cajas Daza, Jorge Luiz de Almeida Ferreira, José Alexander Araujo, José Antônio Euzébio Paiva, Rodrigo Arbey Muñoz Meneses, Cosme Roberto Moreira da Silva   +5 more
doaj   +1 more source

Acceptor‐Doped Cerium Oxides Enabling Metallic Nanocatalyst Exsolution for Hydrogen Production From Ammonia

Angewandte Chemie, EarlyView.
Outstanding catalytic results for NH3 decomposition for H2 production were obtained with metallic Ru, Rh, and RuRh nanoparticle‐exsolved CeO2‐based catalysts. Significant lower amounts of available superficial metallic fractions were needed in comparison to conventional Ru‐impregnated materials.
Andrés López‐García, Elena Barrio‐Querol, Álvaro Represa, Jesús Ara, Ana B. Hungría, David Catalán‐Martínez, Alfonso J. Carrillo, Sonia Escolástico, José Manuel Serra   +8 more
wiley   +2 more sources

Characteristics of Samaria-Doped Ceria Prepared by Pechini Method

Acta Physica Polonica A, 2015
CeO2 ceramics doped with 20 mol.% samarium (SDC-20) were prepared through the Pechini process. The samples were calcined at 400, 700 and 1000 °C. The sintering behavior of the calcined SDC-20 powders was also investigated at 1400 °C for 6 h. Microstructural and physical properties of SDC-20 samples were characterized with X-ray diffraction, scanning ...
Arabaci, Aliye, Serin, Özgün
openaire   +1 more source

Influência da adição de níquel na síntese do SrSnO3 Influence of nickel doping on the SrSnO3 synthesis

Cerâmica, 2008
Pós cerâmicos microestruturados de Sr1-xNi xSnO3 (x de 0 a 0,20) foram sintetizados com sucesso pelo método dos precursores poliméricos. Os precursores foram caracterizados por análise térmica.
M. R. Nascimento, M. R. C. Santos, S. J. G. Lima, C. D. Pinheiro, J. W. M. Espinosa, E. Longo, A. G. Souza, I. M. G. Santos   +7 more
doaj   +1 more source

Study of magnetic properties of NiZnCu ferrite synthesized by Pechini method and solid-state reactions

AIP Advances, 2018
Ni-Zn-Cu ferrites are exhibiting excellent magnetic properties at large frequencies and are consequently produced as low-loss magnetic materials used for magnetic components in power electronics.
Gaëlla Frajer, Mathieu Salaün, Gérard Delette, Hervé Chazal, Olivier Isnard   +4 more
doaj   +1 more source

Adapted Pechini method to prepare DSA type electrodes of RuO2-ZrO2 doped with Sb2O5 over titanium plates

MethodsX, 2018
This paper describes a thermal method to obtain metal oxides on a titanium substrate surface. This adapted Pechini method is a versatile, easy to handle and scalable technique to obtain electrodes for industrial uses, such as Dimensionally Stable Anodes (
Francisca A. Rodríguez, Eligio P. Rivero, Ignacio González   +2 more
doaj   +1 more source

Synthesis and Structural Properties of Niobium Pentoxide Powders: A Comparative Study of the Growth Process [PDF]

Materials Research, 2016
Powders Nb2 O5 were prepared by two different synthesis method, Sol-Gel and polymeric precursors (Pechini). In the Pechini method before adding the citric acid in the process, four different solutions were used to get the samples. For Sol-gel method, two
Angela M. Raba, Jorge Bautista-Ruíz, Miryam R. Joya   +2 more
doaj   +1 more source

Pós nanométricos de BaZrO3: preparação e caracterização de cerâmicas BaZrO3 nanometric powders: preparation and characterization of ceramics

Cerâmica, 2005
Cerâmicas de BaZrO3 foram produzidas a partir de pós sintetizados pelo método de Pechini modificado. Os pós apresentaram tamanho médio de partícula de ~130 nm e 100% de fase cristalina de BaZrO3 depois de tratados termicamente a 800 °C / 2h.
E. Antonelli, M. I. B. Bernardi, A. C. Hernandes   +2 more
doaj   +1 more source