Single-phase nickel-doped ceria cathode with in situ grown nickel nanocatalyst for direct high-temperature carbon dioxide electrolysis

RSC Advances ◽  
2014 ◽  
Vol 4 (76) ◽  
pp. 40494-40504 ◽  
Author(s):  
Wentao Qi ◽  
Kui Xie ◽  
Min Liu ◽  
Guojian Wu ◽  
Yan Wang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Temperature ◽  
Single Phase ◽  
Doped Ceria

In situ growth of Ni nanocatalysts on CeO2 surface has been achieved and the direct carbon dioxide electrolysis reaches high efficiencies using this material as cathode.

scholarly journals One-step ultra-rapid fabrication and thermoelectric properties of Cu2Se bulk thermoelectric material

RSC Advances ◽  
2019 ◽  
Vol 9 (19) ◽  
pp. 10508-10519 ◽  
Author(s):  
Tiezheng Hu ◽  
Yonggao Yan ◽  
Si Wang ◽  
Xianli Su ◽  
Wei Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Thermoelectric Properties ◽  
Single Phase ◽  
Temperature Synthesis ◽  
High Temperature Synthesis ◽  
Thermoelectric Energy ◽  
Rapid Fabrication ◽  
One Step ◽  
First Time

Cu2Se is a promising material for thermoelectric energy conversion. Fully dense single-phase bulk Cu2Se was prepared by the combination of self-propagating high-temperature synthesis with in situ quick pressing for the first time.

Chromate cathode decorated with in-situ growth of copper nanocatalyst for high temperature carbon dioxide electrolysis

2014 ◽  
Vol 39 (36) ◽  
pp. 20888-20897 ◽  
Author(s):  
Huaxin Li ◽  
Gehui Sun ◽  
Kui Xie ◽  
Wentao Qi ◽  
Qingqing Qin ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Temperature ◽  
In Situ Growth

scholarly journals In Situ Quantitative Raman Detection of Dissolved Carbon Dioxide and Sulfate in Deep-Sea High-Temperature Hydrothermal Vent Fluids

2018 ◽  
Vol 19 (6) ◽  
pp. 1809-1823 ◽  
Author(s):  
Lianfu Li ◽  
Xin Zhang ◽  
Zhendong Luan ◽  
Zengfeng Du ◽  
Shichuan Xi ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Temperature ◽  
Deep Sea ◽  
Hydrothermal Vent ◽  
Dissolved Carbon ◽  
Dissolved Carbon Dioxide

High Temperature - FTIR Characterization of Gadolinia Doped Ceria

2010 ◽  
Vol 72 ◽  
pp. 249-254
Author(s):  
Aliye Arabaci ◽  
Nuri Solak
Keyword(s):  
High Temperature ◽  
Thermal Analyses ◽  
Water Soluble ◽  
Ex Situ ◽  
Doped Ceria ◽  
X Ray Diffraction ◽  
Ftir Characterization ◽  
Ft Ir ◽  
Xrd Techniques

Doped ceria-based (DC) materials have recently been considered as the most promising solid electrolytes for intermediate temperature solid oxide fuel cell (IT-SOFC) applications. Doped ceria is usually prepared via thermal decomposition of its water soluble salts, especially, acetates and nitrates. The properties of the obtained final product directly influenced by the starting material and the decomposition products. Therefore, it is crucial to understand the decomposition steps and intermediate products. Number of experimental work have been reported using various <em>in-situ</em> and <em>ex-situ</em> techniques such as thermogravimetry with mass spectrometry (TG/DTA-MS), X-ray diffraction with differential scanning calorimeter (XRD-DSC). However, the available literature data is limited and not reasonably in agreement with each other. High Temperature FT-IR spectroscopy, TG/DTA-MS, XRD, techniques were used and results are compared with literature. A good agreement between the thermal analyses and HT-FTIR results were obtained. Possible decomposition mechanism is discussed.

In situ characterisation of nanostructured multiphase thermoelectric materials at elevated temperatures

2016 ◽  
Vol 18 (48) ◽  
pp. 32814-32819 ◽  
Author(s):  
S. Aminorroaya Yamini ◽  
D. R. G. Mitchell ◽  
M. Avdeev
Keyword(s):  
High Temperature ◽  
Thermoelectric Materials ◽  
Single Phase ◽  
Elevated Temperatures ◽  
Chemical Interaction ◽  
Secondary Phases

Multiphase thermoelectric materials exhibit higher efficiencies than their single-phase counterparts. Here, we performed in situ high temperature structural characterisations and shown a strong chemical interaction between secondary phases and matrices at elevated temperatures.

scholarly journals In situ Growth of NixCu1-x Alloy Nanocatalysts on Redox-reversible Rutile (Nb,Ti)O4 Towards High-Temperature Carbon Dioxide Electrolysis

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Haoshan Wei ◽  
Kui Xie ◽  
Jun Zhang ◽  
Yong Zhang ◽  
Yan Wang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Temperature ◽  
In Situ Growth

scholarly journals Additive Manufacturing of β-NiAl by Means of Laser Metal Deposition of Pre-Alloyed and Elemental Powders

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2246
Author(s):  
Michael Müller ◽  
Bastian Heinen ◽  
Mirko Riede ◽  
Elena López ◽  
Frank Brückner ◽  
...  
Keyword(s):  
High Temperature ◽  
Additive Manufacturing ◽  
Single Phase ◽  
Metal Deposition ◽  
Advanced Materials ◽  
Process Conditions ◽  
Elemental Distribution ◽  
Laser Metal Deposition ◽  
Preheating Temperature

The additive manufacturing (AM) technique, laser metal deposition (LMD), combines the advantages of near net shape manufacturing, tailored thermal process conditions and in situ alloy modification. This makes LMD a promising approach for the processing of advanced materials, such as intermetallics. Additionally, LMD allows the composition of a powder blend to be modified in situ. Hence, alloying and material build-up can be achieved simultaneously. Within this contribution, AM processing of the promising high-temperature material β-NiAl, by means of LMD, with elemental powder blends, as well as with pre-alloyed powders, was presented. The investigations showed that by applying a preheating temperature of 1100 °C, β-NiAl could be processed without cracking. Additionally, by using pre-alloyed, as well as elemental powders, a single phase β-NiAl microstructure can be achieved in multi-layer build-ups. Major differences between the approaches were found within substrate near regions. For in situ alloying of Ni and Al, these regions are characterized by an inhomogeneous elemental distribution in a layerwise manner. However, due to the remelting of preceding layers during deposition, a homogenization can be observed, leading to a single-phase structure. This shows the potential of high temperature preheating and in situ alloying to push the development of new high temperature materials for AM.

A redox-stable chromate cathode decorated with in situ grown nickel nanocatalyst for efficient carbon dioxide electrolysis

2015 ◽  
Vol 5 (3) ◽  
pp. 1929-1940 ◽  
Author(s):  
Cong Ruan ◽  
Kui Xie
Keyword(s):  
Carbon Dioxide ◽  
High Temperature ◽  
Ni Nanoparticles

Ni nanoparticles are anchored on the surface of a chromate substrate by in situ growth, and significantly improve its performance for high-temperature CO2 electrolysis.

The reaction of amorphous Ni-Nb films with Si in the presence of a native SiO2 layer

1990 ◽  
Vol 48 (4) ◽  
pp. 664-665
Author(s):  
N. Rozhanski ◽  
A. Barg
Keyword(s):  
High Temperature ◽  
Crystallization Temperature ◽  
Diffusion Barriers ◽  
Sio2 Layer ◽  
Si Substrate ◽  
Cross Sectional ◽  
Plan View ◽  
Temperature Range ◽  
Sputter Deposited

Amorphous Ni-Nb alloys are of potential interest as diffusion barriers for high temperature metallization for VLSI. In the present work amorphous Ni-Nb films were sputter deposited on Si(100) and their interaction with a substrate was studied in the temperature range (200-700)°C. The crystallization of films was observed on the plan-view specimens heated in-situ in Philips-400ST microscope. Cross-sectional objects were prepared to study the structure of interfaces.The crystallization temperature of Ni5 0 Ni5 0 and Ni8 0 Nb2 0 films was found to be equal to 675°C and 525°C correspondingly. The crystallization of Ni5 0 Ni5 0 films is followed by the formation of Ni6Nb7 and Ni3Nb nucleus. Ni8 0Nb2 0 films crystallise with the formation of Ni and Ni3Nb crystals. No interaction of both films with Si substrate was observed on plan-view specimens up to 700°C, that is due to the barrier action of the native SiO2 layer.

COPPER ALLOY No. 230

Alloy Digest ◽  
1972 ◽  
Vol 21 (3) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Copper Alloy ◽  
Single Phase ◽  
Heat Treating ◽  
Temperature Performance

Abstract COPPER ALLOY No. 230 is a single-phase brass containing 15% zinc which is the most widely used of the low zinc brasses. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness and creep. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-252. Producer or source: Brass mills.

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