Results 61 to 70 of about 6,256 (224)

Catalytic Hollow Fibre Membrane Micro-reactors for Energy Applications

open access: yes, 2011
An asymmetric ceramic hollow fibre is proposed as a substrate for the development of a catalytic hollow fibre microreactor (CHFMR) and a catalytic hollow fibre membrane microreactor (CHFMMR).
Rahman, Mukhlis Bin A   +1 more
core   +1 more source

LiCrxFeyMn2−x−y−zTizO4 Spinels as Cathodes for Li‐Ion Batteries: A Multidoping Approach to Suppress Jahn–Teller Distortion

open access: yesChemElectroChem, Volume 13, Issue 6, 17 March 2026.
Multidoping of spinel LiMn2O4 with Cr, Fe, and Ti effectively suppresses Jahn–Teller distortion, enhancing structural stability and cycling performance in Li‐ion batteries. Operando X‐ray absorption spectroscopy and ex situ X‐ray diffraction confirm a stable spinel framework and indicate Mn as the only electrochemically active element.
Daniele Callegari   +8 more
wiley   +1 more source

Síntesis y evaluación de la actividad fotocatalítica del Na2TiO3 dopado con Nd para su utilización en la región del espectro visible [PDF]

open access: yes, 2016
En este trabajo se llevó a cabo la síntesis a través del método de Pechini de sólidos semiconductores tipo perovskita de la forma Na2-xNdxTiO3+Z dopados con diferentes fracciones de neodimio.
Casadiego Díaz, Oscar Felipe
core  

Electrochemical characterization of YSZ thick films deposited by dip-coating process [PDF]

open access: yes, 2007
Yttria stabilized zirconia (YSZ, 8% Y2O3) thick films were coated on dense alumina substrates by a dip-coating process. The suspension was obtained by addition of a polymeric matrix in a stable suspension of commercial YSZ (Tosoh) powders dispersed in an
Ansart, Florence   +6 more
core   +3 more sources

Decoupling Size and Electronic Effects in Doped SrTiO3 Photocatalysts Through Surface Area–Normalized CO2 Hydrogenation Rates

open access: yesAdvanced Functional Materials, Volume 36, Issue 25, 26 March 2026.
Exploring the photocatalytic reverse water–gas shift (RWGS) reaction on doped SrTiO3 nanoparticle films, reveals that normalizing catalytic rates by the catalyst's specific surface area (SSA) disentangled surface area effects from the catalyst's intrinsic material properties.
Dikshita Bhattacharyya   +6 more
wiley   +1 more source

Environmental-friendly yellow pigment based on Tb and M (M = Ca or Ba) co-doped Y2O3 [PDF]

open access: yes, 2013
A yellow inorganic ceramic pigment with general formula Y1.86−xMxTb0.14O3−x/2 (M = Ca and/or Zn) with x = 0.06, 0.32 and 0.64 were synthesized by a modified Pechini method. XRD, SEM and HRTEM/EDX analysis showed the formation of solid solution at 1300 °C
Beltrán Mir, Héctor   +3 more
core   +1 more source

Nano‐ and Micro‐Sized Solid Materials Used as Antiviral Agents

open access: yesAdvanced Functional Materials, Volume 36, Issue 26, 30 March 2026.
Due to the rise of viral infections in humans and possible viral outbreaks, the use of nano‐ or micro‐sized materials as antiviral agents is rapidly increasing. This review explores their antiviral properties against RNA and DNA viruses, either as a prevention or a treatment tool, by delving into their mechanisms of action and how to properly assess ...
Orfeas‐Evangelos Plastiras   +6 more
wiley   +1 more source

Síntesis y caracterización de recubrimientos absorbentes selectivos para calentadores solares [PDF]

open access: yes, 2016
En la actualidad existen muchos problemas ambientales asociados al alto consumo energético y a la necesidad del hombre por satisfacerlo, generando entonces contaminación de las fuentes hídricas, polución, tala de árboles, entre otras; la mayoría de estos
Moreno Soto, Jeiner Orlando
core  

A Novel Supercapacitor with Integrated Photosensitive Electrode to Enhance Its Capacitance Under Solar Light

open access: yesSmall, Volume 22, Issue 13, 3 March 2026.
In this research we demonstrated that the energy density of supercapacitors can be enhanced at about 50% by generating extra charge through the use of a photosensitive cell coupled to the supercapacitor estructure. ABSTRACT This research reports a supercapacitor (SC) made with a photosensitive electrode (composed of LaFe0.94V0.01Mn0.05O3 (V‐LFO ...
Luis Ojeda   +7 more
wiley   +1 more source

Structural and morphological characterization of rare earth modified lead titanate Caracterização estrutural e morfológica de titanatos de chumbo modificados por terras raras

open access: yesCerâmica, 2007
Rare earth modified lead titanate powders Pb1-xRExTiO3 (REPT), x = 0.01, 0.05, 0.07 and RE = Yb, Y, were prepared by the Pechini method. The materials were calcined under flowing oxygen at different temperatures from 300 to 700 ºC.
F. C. D. Lemos   +5 more
doaj   +1 more source

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