Low-temperature nucleation and growth of Zn on Au(111) and thermal stability toward (surface) alloy formation

2021 ◽  
Vol 155 (12) ◽  
pp. 124704
Author(s):  
Konstantin M. Schüttler ◽  
Joachim Bansmann ◽  
Albert K. Engstfeld ◽  
R. Jürgen Behm
Keyword(s):  
Thermal Stability ◽  
Low Temperature ◽  
Nucleation And Growth ◽  
Surface Alloy ◽  
Alloy Formation

Role of boundaries in the crystallization of amorphous films

1988 ◽  
Vol 46 ◽  
pp. 626-627
Author(s):  
D. A. Smith
Keyword(s):  
Low Temperature ◽  
Amorphous State ◽  
Nucleation And Growth ◽  
Amorphous Films ◽  
Island Nucleation ◽  
Surface Steps ◽  
Transmission Electron ◽  
Component Systems ◽  
Temperature Deposition

The nucleation and growth processes which lead to the formation of a thin film are particularly amenable to investigation by transmission electron microscopy either in situ or subsequent to deposition. In situ studies have enabled the observation of island nucleation and growth, together with addition of atoms to surface steps. This paper is concerned with post-deposition crystallization of amorphous alloys. It will be argued that the processes occurring during low temperature deposition of one component systems are related but the evidence is mainly indirect. Amorphous films result when the deposition conditions such as low temperature or the presence of impurities (intentional or unintentional) preclude the atomic mobility necessary for crystallization. Representative examples of this behavior are CVD silicon grown below about 670°C, metalloids, such as antimony deposited at room temperature, binary alloys or compounds such as Cu-Ag or Cr O2, respectively. Elemental metals are not stable in the amorphous state.

Synthesis, Curing, and Thermal Stability of Low-Temperature-Cured Benzoxazine Resins Based on Natural Renewable Resources

2021 ◽  
Author(s):  
Hongqiang Yan ◽  
Zuomin Zhan ◽  
Huaqing Wang ◽  
Jie Cheng ◽  
Zhengping Fang
Keyword(s):  
Thermal Stability ◽  
Low Temperature ◽  
Renewable Resources ◽  
Thermal Stability Of

scholarly journals Bimetallic Ni-Based Catalysts for CO2 Methanation: A Review

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 28
Author(s):  
Anastasios I. Tsiotsias ◽  
Nikolaos D. Charisiou ◽  
Ioannis V. Yentekakis ◽  
Maria A. Goula
Keyword(s):  
Low Temperature ◽  
Noble Metals ◽  
Recent Progress ◽  
Low Cost ◽  
Alloy Formation ◽  
Co2 Methanation ◽  
High Performing ◽  
Mobile Sources ◽  
Low Dispersion ◽  
Made In

CO2 methanation has recently emerged as a process that targets the reduction in anthropogenic CO2 emissions, via the conversion of CO2 captured from point and mobile sources, as well as H2 produced from renewables into CH4. Ni, among the early transition metals, as well as Ru and Rh, among the noble metals, have been known to be among the most active methanation catalysts, with Ni being favoured due to its low cost and high natural abundance. However, insufficient low-temperature activity, low dispersion and reducibility, as well as nanoparticle sintering are some of the main drawbacks when using Ni-based catalysts. Such problems can be partly overcome via the introduction of a second transition metal (e.g., Fe, Co) or a noble metal (e.g., Ru, Rh, Pt, Pd and Re) in Ni-based catalysts. Through Ni-M alloy formation, or the intricate synergy between two adjacent metallic phases, new high-performing and low-cost methanation catalysts can be obtained. This review summarizes and critically discusses recent progress made in the field of bimetallic Ni-M (M = Fe, Co, Cu, Ru, Rh, Pt, Pd, Re)-based catalyst development for the CO2 methanation reaction.

Adhesive Strength of Ni–Cu Surface Alloy Formation by Low-Energy High-Current Electron Beam

2021 ◽  
Vol 63 (10) ◽  
pp. 1804-1809
Author(s):  
E. V. Yakovlev ◽  
A. B. Markov ◽  
D. A. Shepel ◽  
V. I. Petrov ◽  
A. A. Neiman
Keyword(s):  
Electron Beam ◽  
Adhesive Strength ◽  
Low Energy ◽  
Surface Alloy ◽  
Alloy Formation ◽  
High Current ◽  
High Current Electron Beam ◽  
Current Electron ◽  
High Current Electron

Formation and Structure of Thin Mo Layers and Mo-Ni Multilayers on Ni(001) by Molecular Beam Epitaxy

1989 ◽  
Vol 160 ◽  
Author(s):  
Y.H. Lee ◽  
R.P. Burns ◽  
J.B. Posthill ◽  
K.J. Bachmann
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
High Resolution ◽  
Molecular Beam Epitaxy ◽  
Low Temperature ◽  
Molecular Beam ◽  
Nucleation And Growth ◽  
Multilayer Heterostructures ◽  
Annealing Experiments ◽  
Small Period

AbstractThe growth of Mo overtayers and Mo-Ni multilayers on single crystal Ni(001) substrates is described. The nucleation and growth processes of these thin films were analyzed by LEED, XPS, AES and SEM and High Resolution AES investigations without breaking vacuum. Growth of Mo-Ni multilayer heterostructures on Ni(001) with ≈20Å periodicity is possible at low temperature (≈200 °C). At high temperature (≈550 °C) the growth proceeds by the Volmer-Weber mechanism preventing the deposition of small period multilayers. Annealing experiments on ultra-thin (<20Å) Mo overiayers deposited at 200 °C show an onset of interdiffusion at ≈ 550°C coupled to the generation of a new surface periodicity.

Increased thermal stability of nesquehonite (MgCO 3 ·3H 2 O) in the presence of humidity and CO 2 : Implications for low-temperature CO 2 storage

2015 ◽  
Vol 39 ◽  
pp. 366-376 ◽  
Author(s):  
Bree Morgan ◽  
Siobhan A. Wilson ◽  
Ian C. Madsen ◽  
Yesim M. Gozukara ◽  
Jana Habsuda
Keyword(s):  
Thermal Stability ◽  
Low Temperature ◽  
Thermal Stability Of

Remarkably promoted low-temperature reducibility and thermal stability of CeO2–ZrO2–La2O3–Nd2O3 by a urea-assisted low-temperature (90 °C) hydrothermal procedure

2017 ◽  
Vol 52 (10) ◽  
pp. 5894-5907 ◽  
Author(s):  
Yi Zhou ◽  
Jie Deng ◽  
Li Lan ◽  
Jianli Wang ◽  
Shandong Yuan ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Low Temperature ◽  
Thermal Stability Of

Nucleation and growth of N- and P-type microcrystals in low-temperature glow-discharge deposited silicon films

1984 ◽  
Vol 66 (1-2) ◽  
pp. 31-37 ◽  
Author(s):  
P.E. Vanier ◽  
J. Tafto ◽  
G. Rajeswaran ◽  
F.J. Kampas
Keyword(s):  
Low Temperature ◽  
Glow Discharge ◽  
Nucleation And Growth ◽  
Silicon Films ◽  
P Type

Facile low temperature solid state synthesis of iodoapatite by high-energy ball milling

RSC Advances ◽  
2014 ◽  
Vol 4 (73) ◽  
pp. 38718-38725 ◽  
Author(s):  
Fengyuan Lu ◽  
Tiankai Yao ◽  
Jinling Xu ◽  
Jingxian Wang ◽  
Spencer Scott ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solid State ◽  
Low Temperature ◽  
Ball Milling ◽  
Thermal Annealing ◽  
Amorphous Matrix ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Solid State Synthesis ◽  
Energy Ball

High energy ball milled iodoapatite in the form of an amorphous matrix embedded with nanocrystals can be readily crystallized by subsequent low temperature thermal annealing, which greatly improves the thermal stability and iodine confinement.

Mixed carbonyl-dinitrogen compounds: synthesis and thermal stability of Cr(CO)6-x(N2)x in liquid xenon solution and low-temperature matrixes

1983 ◽  
Vol 22 (6) ◽  
pp. 911-920 ◽  
Author(s):  
James J. Turner ◽  
Michael B. Simpson ◽  
Martyn Poliakoff ◽  
William B. Maier ◽  
Michael A. Graham
Keyword(s):  
Thermal Stability ◽  
Low Temperature ◽  
Liquid Xenon ◽  
Thermal Stability Of
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