Plasma modification of vanadium oxynitride surfaces: Characterization by in situ XPS experiments and DFT calculations

2020 ◽  
Vol 153 (14) ◽  
pp. 144709
Author(s):  
A. Osonkie ◽  
V. Lee ◽  
P. Chukwunenye ◽  
T. Cundari ◽  
J. Kelber
Keyword(s):  
Dft Calculations ◽  
Plasma Modification ◽  
In Situ Xps

Physicochemical properties of geopolymer composites with DFT calculations of in-situ reduction of graphene oxide

2021 ◽  
Author(s):  
Amun Amri ◽  
Ahmad Ainun Najib ◽  
Monita Olivia ◽  
Mohammednoor Altarawneh ◽  
Aman Syam ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Dft Calculations ◽  
Physicochemical Properties ◽  
In Situ Reduction ◽  
Geopolymer Composites

scholarly journals In-Situ XPS Monitoring and Characterization of Electrochemically Prepared Au Nanoparticles in an Ionic Liquid

ACS Omega ◽  
2017 ◽  
Vol 2 (2) ◽  
pp. 478-486 ◽  
Author(s):  
Merve T. Camci ◽  
Burak Ulgut ◽  
Coskun Kocabas ◽  
Sefik Suzer
Keyword(s):  
Ionic Liquid ◽  
Au Nanoparticles ◽  
In Situ Xps

scholarly journals Reactivity of mesoporous carbon against water – An in-situ XPS study

Carbon ◽  
2014 ◽  
Vol 77 ◽  
pp. 175-183 ◽  
Author(s):  
Sylvia Reiche ◽  
Raoul Blume ◽  
Xiao Chen Zhao ◽  
Dangsheng Su ◽  
Edward Kunkes ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
In Situ Xps ◽  
Xps Study

In-situ XPS study of ALD ZnO passivation of p-In0.53Ga0.47As

2015 ◽  
Vol 11 (5) ◽  
pp. 769-774 ◽  
Author(s):  
Antonio T. Lucero ◽  
Young-Chul Byun ◽  
Xiaoye Qin ◽  
Lanxia Cheng ◽  
Hyoungsub Kim ◽  
...  
Keyword(s):  
In Situ Xps ◽  
Xps Study

scholarly journals Chemically addressed switching measurements in graphene electrode memristive devices using in situ XPS

2019 ◽  
Vol 213 ◽  
pp. 231-244 ◽  
Author(s):  
Itır Köymen ◽  
Pınar Aydoğan Göktürk ◽  
Coşkun Kocabaş ◽  
Şefik Süzer
Keyword(s):  
Graphene Electrode ◽  
In Situ Xps ◽  
Graphene Structures

In situ measurements using XPS were performed on Pt/TiO2/TiOx/graphene structures to chemically address switching and hysteresis.

Tropylium Salt Promoted Hydroboration Reactions: Mechanistic Insights via Experimental and Computational Studies

2021 ◽  
Author(s):  
Nhan Nu Hong Ton ◽  
Binh Khanh Mai ◽  
Thanh Vinh Nguyen
Keyword(s):  
Dft Calculations ◽  
Lewis Acids ◽  
Experimental Studies ◽  
Cross Coupling ◽  
Computational Studies ◽  
Metal Free ◽  
Hydride Abstraction ◽  
Novel Method ◽  
Tropylium Salts

Abstract: Hydroboration reaction of alkynes is one of the most synthetically powerful tools to access organoboron compounds, versatile precursors for cross coupling chemistry. This type of reaction has traditionally been mediated by transition metal or main group catalysts. Herein, we report a novel method using tropylium salts, typically known as organic oxidants and Lewis acids, to efficiently promote the hydroboration reaction of alkynes. A broad range of vinylboranes can be easily accessed via this metal-free protocol. Similar hydroboration reactions of alkenes and epoxides can also be efficiently catalyzed by the same tropylium catalysts. Experimental studies and DFT calculations suggested that the reaction follows an uncommon mechanistic paradigm, which is triggered by a hydride abstraction of pinacolborane with tropylium ion. This is followed by a series of <i>in situ</i> counterion-activated substituent exchanges to generate boron intermediates that promote the hydroboration reaction.

Elucidating the mechanism of the CO2 methanation reaction over Ni–Fe hydrotalcite-derived catalysts via surface-sensitive in situ XPS and NEXAFS

2020 ◽  
Vol 22 (34) ◽  
pp. 18788-18797 ◽  
Author(s):  
Gianfranco Giorgianni ◽  
Chalachew Mebrahtu ◽  
Manfred Erwin Schuster ◽  
Alexander Ian Large ◽  
Georg Held ◽  
...  
Keyword(s):  
Co2 Methanation ◽  
Promotion Effect ◽  
Methanation Reaction ◽  
In Situ Xps

In situ surface sensitive XPS and NEXAFS clarify the promotion effect of Fe in Ni–Fe/hydrotalcite-derived catalysts for the CO2 methanation reaction.

scholarly journals Dynamics of carbon diffusion and segregation through nickel catalyst, investigated by in-situ XPS, during the growth of nitrogen-doped graphene

Carbon ◽  
2019 ◽  
Vol 155 ◽  
pp. 410-420 ◽  
Author(s):  
Y. Bleu ◽  
V. Barnier ◽  
F. Christien ◽  
F. Bourquard ◽  
A.-S. Loir ◽  
...  
Keyword(s):  
Nickel Catalyst ◽  
Carbon Diffusion ◽  
Nitrogen Doped ◽  
In Situ Xps ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

In situ XPS analysis of the electronic structure of silicon and titanium thin films exposed to low-pressure inductively-coupled RF plasma

2021 ◽  
Vol 542 ◽  
pp. 148684
Author(s):  
Jordi Fraxedas ◽  
Max Schütte ◽  
Guillaume Sauthier ◽  
Massimo Tallarida ◽  
Salvador Ferrer ◽  
...  
Keyword(s):  
Thin Films ◽  
Electronic Structure ◽  
Low Pressure ◽  
Rf Plasma ◽  
Xps Analysis ◽  
Inductively Coupled ◽  
In Situ Xps ◽  
Titanium Thin Films

scholarly journals Effect of heat treatment on the surface chemical structure of glass: Oxygen speciation from in situ XPS analysis

2017 ◽  
Vol 101 (2) ◽  
pp. 644-656 ◽  
Author(s):  
Joy Banerjee ◽  
Vincent Bojan ◽  
Carlo G. Pantano ◽  
Seong H. Kim
Keyword(s):  
Heat Treatment ◽  
Chemical Structure ◽  
Xps Analysis ◽  
Surface Chemical ◽  
In Situ Xps
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