scholarly journals X-ray Photoelectron Spectroscopic Investigation of Plasma-Enhanced Chemical Vapor Deposited NiOx, NiOx(OH)y, and CoNiOx(OH)y: Influence of the Chemical Composition on the Catalytic Activity for the Oxygen Evolution Reaction

2017 ◽  
Vol 121 (12) ◽  
pp. 6455-6463 ◽  
Author(s):  
Natascha Weidler ◽  
Jona Schuch ◽  
Florian Knaus ◽  
Patrick Stenner ◽  
Sascha Hoch ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Chemical Composition ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Spectroscopic Investigation ◽  
Chemical Vapor ◽  
X Ray ◽  
Chemical Vapor Deposited

X-Ray Photoemission Study of Silicon Nitride-GaAs Interfaces in Relation with GaAs Mesfet Passivation

1987 ◽  
Vol 98 ◽  
Author(s):  
Patrick Alnot ◽  
J. Olivier ◽  
F. Wyczisk ◽  
J. F. Peray ◽  
R. Joubart
Keyword(s):  
Chemical Composition ◽  
Photoelectron Spectroscopy ◽  
Excitation Frequency ◽  
Chemical Vapor ◽  
Gaas Surface ◽  
Surface Pretreatment ◽  
X Ray ◽  
Chemical Vapor Deposited ◽  
Plasma Excitation ◽  
Photoemission Study

ABSTRACTWe have studied the influence of different GaAs surface treatments on the chemical composition and electrical behavior of the Si 3 N4 -GaAs interface, where Si 3 N4 was plasma enhanced chemical vapor deposited (PECVD) onto the treated GaAs(100) substrate. The chemistry of the resulting interface has been studied by X-ray photoelectron spectroscopy (XPS). It has been demonstrated that the chemical composition of the Si 3 N4-GaAs interface is drastically dependent on GaAs surface pretreatment and r.f. plasma excitation frequency. Output-input powers characteristics have been measured on chemically treated planar MESFET after Si3N4. passivation.

Enhanced oxygen evolution catalytic activity of NiS2 by coupling with ferrous phosphite and phosphide

2021 ◽  
Vol 5 (6) ◽  
pp. 1801-1808
Author(s):  
Jie Yu ◽  
Tao Zhang ◽  
Changchang Xing ◽  
Xuejiao Li ◽  
Xinyang Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Tafel Slope ◽  
Low Overpotential

NiS2/Fe-P nanospheres were developed as an efficient oxygen evolution reaction electrocatalyst with a low overpotential (218 mV @ 10 mA cm−2 and 306 mV @ 800 mA cm−2) and Tafel slope (47.5 mV dec−1).

Revealing the structural transformation of rutile RuO2via in situ X-ray absorption spectroscopy during the oxygen evolution reaction

2019 ◽  
Vol 48 (21) ◽  
pp. 7122-7129 ◽  
Author(s):  
Chia-Jui Chang ◽  
You-Chiuan Chu ◽  
Hao-Yu Yan ◽  
Yen-Fa Liao ◽  
Hao Ming Chen
Keyword(s):  
Oxygen Evolution ◽  
Structural Transformation ◽  
Absorption Spectroscopy ◽  
Oxygen Evolution Reaction ◽  
The State ◽  
X Ray ◽  
Alkaline Conditions ◽  
X Ray Absorption ◽  
State Of Art

The state-of-art RuO2 catalyst for the oxygen evolution reaction (OER) is measured by using in situ X-ray absorption spectroscopy (XAS) to elucidate the structural transformation during catalyzing the reaction in acidic and alkaline conditions.

Studies of the Coefficient of Thermal Expansion of Low-k ILD Materials by X-Ray Reflectivity

2006 ◽  
Vol 914 ◽  
Author(s):  
George Andrew Antonelli ◽  
Tran M. Phung ◽  
Clay D. Mortensen ◽  
David Johnson ◽  
Michael D. Goodner ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Expansion ◽  
Coefficient Of Thermal Expansion ◽  
Chemical Vapor ◽  
Dielectric Materials ◽  
Free Standing ◽  
Dielectric Thin Films ◽  
X Ray ◽  
Chemical Vapor Deposited ◽  
Low K

AbstractThe electrical and mechanical properties of low-k dielectric materials have received a great deal of attention in recent years; however, measurements of thermal properties such as the coefficient of thermal expansion remain minimal. This absence of data is due in part to the limited number of experimental techniques capable of measuring this parameter. Even when data does exist, it has generally not been collected on samples of a thickness relevant to current and future integrated processes. We present a procedure for using x-ray reflectivity to measure the coefficient of thermal expansion of sub-micron dielectric thin films. In particular, we elucidate the thin film mechanics required to extract this parameter for a supported film as opposed to a free-standing film. Results of measurements for a series of plasma-enhanced chemical vapor deposited and spin-on low-k dielectric thin films will be provided and compared.

Nanoporous gold supported chromium-doped NiFe oxyhydroxides as high-performance catalysts for the oxygen evolution reaction

2019 ◽  
Vol 7 (16) ◽  
pp. 9690-9697 ◽  
Author(s):  
Jie-Song Sun ◽  
Yi-Tong Zhou ◽  
Rui-Qi Yao ◽  
Hang Shi ◽  
Zi Wen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Three Dimensional ◽  
Nanoporous Gold

Chromium-doped NiFe oxyhydroxide nanosheets that are quasi-vertically oriented on three-dimensional nanoporous gold exhibit superior catalytic activity towards the oxygen evolution reaction.

Ultraprecision Surface Grinding of Chemical Vapor Deposited Silicon Carbide for X-Ray Mirrors Using Resinoid-Bonded Diamond Wheels

CIRP Annals ◽  
1999 ◽  
Vol 48 (1) ◽  
pp. 277-280 ◽  
Author(s):  
Y. Namba ◽  
H. Kobayashi ◽  
H. Suzuki ◽  
K. Yamashita ◽  
N. Taniguchi
Keyword(s):  
Silicon Carbide ◽  
Chemical Vapor ◽  
Surface Grinding ◽  
X Ray ◽  
Chemical Vapor Deposited

Ultrathin amorphous cobalt–vanadium hydr(oxy)oxide catalysts for the oxygen evolution reaction

2018 ◽  
Vol 11 (7) ◽  
pp. 1736-1741 ◽  
Author(s):  
Juzhe Liu ◽  
Yongfei Ji ◽  
Jianwei Nai ◽  
Xiaogang Niu ◽  
Yi Luo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Oxide Catalysts ◽  
Simple Strategy

A simple strategy to synthesize ultrathin, amorphous and alloyed structural cobalt–vanadium hydr(oxy)oxide catalysts with enhanced water oxidation catalytic activity.

Exfoliation of ultrathin FePS3 layers as a promising electrocatalyst for the oxygen evolution reaction

2018 ◽  
Vol 54 (35) ◽  
pp. 4481-4484 ◽  
Author(s):  
Wen Zhu ◽  
Wei Gan ◽  
Zahir Muhammad ◽  
Changda Wang ◽  
Chuanqiang Wu ◽  
...  
Keyword(s):  
Ball Milling ◽  
Oxygen Evolution ◽  
Alkaline Medium ◽  
Oxygen Evolution Reaction ◽  
Chemical Vapor ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
Electrocatalytic Performance

Few-layer ternary FePS3 nanosheets, prepared via chemical vapor transport synthesis and ball-milling exfoliation, exhibit excellent electrocatalytic performance for the oxygen evolution reaction in an alkaline medium.

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