Step-change in high temperature steam electrolysis performance of perovskite oxide cathodes with exsolution of B-site dopants

2013 ◽  
Vol 6 (1) ◽  
pp. 256-266 ◽  
Author(s):  
George Tsekouras ◽  
Dragos Neagu ◽  
John T. S. Irvine
Keyword(s):  
High Temperature ◽  
Step Change ◽  
Perovskite Oxide ◽  
Oxide Cathodes ◽  
High Temperature Steam

Simulation of high-temperature steam-only gasification of woody biomass with dry-sorption CO2capture

2016 ◽  
Vol 94 (9) ◽  
pp. 1648-1656 ◽  
Author(s):  
Ehsan Mostafavi ◽  
Jennifer H. Pauls ◽  
C. Jim Lim ◽  
Nader Mahinpey
Keyword(s):  
High Temperature ◽  
Woody Biomass ◽  
High Temperature Steam

High activity oxide Pr0.3Sr0.7Ti0.3Fe0.7O3−δ as cathode of SOEC for direct high-temperature steam electrolysis

2017 ◽  
Vol 42 (17) ◽  
pp. 12104-12110 ◽  
Author(s):  
Lijuan Zhang ◽  
Zhihong Wang ◽  
Zhiqun Cao ◽  
Lin Zhu ◽  
Pengzhang Li ◽  
...  
Keyword(s):  
High Temperature ◽  
High Activity ◽  
High Temperature Steam

Characteristics of Phenomena in Powders Type RE2Zr2O7-Al2O3 in High Temperature Annealing Conditions

2011 ◽  
Vol 312-315 ◽  
pp. 583-588 ◽  
Author(s):  
Grzegorz Moskal ◽  
Lucjan Swadźba ◽  
Marek Hetmańczyk ◽  
Bartosz Witala
Keyword(s):  
High Temperature ◽  
Perovskite Oxide ◽  
Differential Scanning Calorimetric ◽  
Test Results ◽  
Dsc Analysis ◽  
Annealing Conditions ◽  
Before And After ◽  
Influence Of Temperature On ◽  
Dta Analysis ◽  
Type Bond

The paper presents test results and characterizes the structural stability of powders, which form a mixture of aluminium oxide (Al2O3) and gadolinium, based on rare earth zirconates. This mixture is provided to create thermal barrier coatings (TBCs) by spraying. The purpose of the tests was to determine the influence of temperature on reactions, occurring between those powders within a temperature range from 25°C to 1500°C, while such conditions were to simulate the conditions, which occur during creation of TBCs and they give an answer to the question concerning mutual reactivity of the powders. The requirements for new materials, provided to spray the TBCs, indicate the necessity to prepare the materials, which do not show tendency towards reactions with the Al2O3, formed during oxidation of Ni (Co) CrAlY, while this reaction is of type bond coat. The tests included differential scanning calorimetric (DSC) analysis and differential thermal analysis (DTA) of powder mixtures. Diffraction analysis was also performed before and after the tests have been finished. The DSC analysis results, obtained at a range of high temperature, did not show any thermal effects, which indicate a low level of mutual reactivity of the powders. However, the DTA analysis suggests presence of such effects at temperature close to 1300°C, and it indicates the necessity to verify exactly the obtained results. Results of the XRD measurement showed that after annealing process already at 1100°C the perovskite oxide of GdAlO3 was present.

Oxidation characteristics of Fe22Cr5Al3Mo-xNb alloys in high temperature steam

2021 ◽  
pp. 109722
Author(s):  
Wenhuai Zhang ◽  
Yue Qian ◽  
Rongrong Sun ◽  
Xiaodong Lin ◽  
Meiyi Yao ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxidation Characteristics ◽  
High Temperature Steam

High-temperature steam reforming of bio-oil derived light organics and methane to hydrogen-rich gas with trace CO via rational temperature control

RSC Advances ◽  
2014 ◽  
Vol 4 (36) ◽  
pp. 18924-18929 ◽  
Author(s):  
Xun Hu ◽  
Lijun Zhang ◽  
Dehua Dong ◽  
Gongxuan Lu
Keyword(s):  
High Temperature ◽  
Constant Temperature ◽  
Temperature Control ◽  
Steam Reforming ◽  
Temperature Region ◽  
Bio Oil ◽  
High Temperature Steam

A reactor with constant-temperature and stepwise decreasing-temperature zones is developed, which can catalyze steam reforming of bio-oil derived organics and methane to produce hydrogen-rich gas with only trace CO in a wide temperature region.

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