A New Durable Surface Nanoparticles‐Modified Perovskite Cathode for Protonic Ceramic Fuel Cells from Selective Cation Exsolution under Oxidizing Atmosphere
Sign Up to like & getrecommendations! Published in 2021 at "Advanced Materials"
DOI: 10.1002/adma.202106379
Abstract: A high‐performance cathode of a protonic ceramic fuel cell (PCFC) should possess excellent oxygen reduction reactivity, high proton/oxygen‐ion/electron conductivity, and sufficient operational stability, thus requiring a delicate tuning of both the bulk and surface properties… read more here.
Keywords: cathode protonic; cathode; exsolution; surface ... See more keywords
Exsolution Modeling and Control to Improve the Catalytic Activity of Nanostructured Electrodes
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Materials"
DOI: 10.1002/adma.202208984
Abstract: In situ exsolution for nanoscale electrode design has attracted considerable attention because of its promising activity and high stability. However, fundamental research on the mechanisms underlying particle growth remains insufficient. Herein, cation‐diffusion‐determined exsolution is presented… read more here.
Keywords: modeling control; exsolution; improve catalytic; control improve ... See more keywords
A Flexible Method to Fabricate Exsolution-Based Nanoparticle-Decorated Materials in Seconds.
Sign Up to like & getrecommendations! Published in 2022 at "Advanced science"
DOI: 10.1002/advs.202200250
Abstract: Decorating metallic nanoparticles on the surface of oxide support is a promising approach to tailor the catalytic activity of perovskite. Here, for the first time using thermal shock to rapidly fabricate nanoparticle-decorated materials (NDMs) is… read more here.
Keywords: exsolution based; thermal shock; exsolution; method ... See more keywords
Nanoparticle Exsolution from Nanoporous Perovskites for Highly Active and Stable Catalysts
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Science"
DOI: 10.1002/advs.202205890
Abstract: Nanoporosity is clearly beneficial for the performance of heterogeneous catalysts. Although exsolution is a modern method to design innovative catalysts, thus far it is predominantly studied for sintered matrices. A quantitative description of the exsolution… read more here.
Keywords: exsolution nanoporous; exsolution; highly active; nanoparticle exsolution ... See more keywords
Replacement of Ca by Ni in a Perovskite Titanate to Yield a Novel Perovskite Exsolution Architecture for Oxygen‐Evolution Reactions
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Energy Materials"
DOI: 10.1002/aenm.201903693
Abstract: For efficient catalysis and electrocatalysis well‐designed, high‐surface‐area support architectures covered with highly dispersed metal nanoparticles with good catalyst‐support interactions are required. In situ grown Ni nanoparticles on perovskites have been recently reported to enhance catalytic… read more here.
Keywords: oxygen evolution; perovskite titanate; exsolution; replacement perovskite ... See more keywords
Low-Temperature Exsolution of Ni-Ru Bimetallic Nanoparticles from A-Site Deficient Double Perovskites.
Sign Up to like & getrecommendations! Published in 2022 at "Small"
DOI: 10.1002/smll.202107020
Abstract: Exsolution of stable metallic nanoparticles for use as efficient electrocatalysts has been of increasing interest for a range of energy technologies. Typically, exsolved nanoparticles show higher thermal and coarsening stability compared to conventionally deposited catalysts.… read more here.
Keywords: site deficient; exsolution; low temperature; deficient double ... See more keywords
Structure and electrochemical properties of titanate perovskite with in situ exsolution as a ceramic electrode material
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Electroceramics"
DOI: 10.1007/s10832-020-00222-7
Abstract: In this work, the structure and electrochemical properties of titanate ceramics with in situ Ni exsolution are investigated to identify the structure-performance relationship of the exsolved perovskite for use as electrode materials in solid oxide… read more here.
Keywords: structure electrochemical; electrochemical properties; exsolution; structure ... See more keywords
Electrical reduction of perovskite electrodes for accelerating exsolution of nanoparticles
Sign Up to like & getrecommendations! Published in 2019 at "Electrochimica Acta"
DOI: 10.1016/j.electacta.2019.03.126
Abstract: Abstract Growth of finely dispersed nanocatalysts by exsolution of metal nanoparticles from perovskite oxides under reducing conditions at elevated temperature is a promising approach of producing highly active catalytic materials. An alternative method of exsolution… read more here.
Keywords: exsolution nanoparticles; lctni; electrical reduction; exsolution ... See more keywords
Experimental and numerical study of non-equilibrium dissolution and exsolution behavior of CO2 in a heavy oil system utilizing Hele-Shaw-like visual cell
Sign Up to like & getrecommendations! Published in 2020 at "Fuel"
DOI: 10.1016/j.fuel.2020.117501
Abstract: Abstract A novel methodology utilizing high-pressure Hele-Shaw-like visual cell has been developed to study solvent dissolution and exsolution behavior of a CO2-heavy oil system. The experimental setup overcomes the visualization shortcomings of traditional apparatuses such… read more here.
Keywords: exsolution; behavior; heavy oil; dissolution ... See more keywords
Redox cycling induced Ni exsolution in Gd0.1Ce0.8Ni0.1O2 - (Sr0.9La0.1)0.9Ti0.9Ni0.1O3 composite solid oxide fuel cell anodes
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Power Sources"
DOI: 10.1016/j.jpowsour.2017.10.009
Abstract: Abstract Oxide anodes composed of 60 wt% Gd0.1Ce0.8Ni0.1O2 (GDCN)- 40 wt% (Sr0.9La0.1)0.9Ti0.9Ni0.1O3 (SLTN) composites were prepared and tested on (ZrO2)0.89(Sc2O3)0.1(CeO2)0.01 (SSZ) electrolyte-supported SOFC cells utilizing a (La0.75Sr0.25)0.98MnO3 (LSM)-SSZ cathode, in 3%-humidified hydrogen fuel at 800 °C. Improved electrochemical… read more here.
Keywords: 8ni0 1o2; gd0 1ce0; 1ce0 8ni0; exsolution ... See more keywords
Exsolution and electrochemistry in perovskite solid oxide fuel cell anodes: Role of stoichiometry in Sr(Ti,Fe,Ni)O3
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Power Sources"
DOI: 10.1016/j.jpowsour.2019.227077
Abstract: Abstract The exsolution of metal cations from oxides under reducing fuel conditions results in the formation of surface metallic nanoparticles, which can reduce Solid Oxide Fuel Cell anode polarization resistance. However, the loss of the… read more here.
Keywords: fuel cell; exsolution; stoichiometry; solid oxide ... See more keywords