Surface characteristics and electrochemical corrosion behavior of NiTi alloy coated with IrO2

Li, M.; Wang, Y.B.; Zhang, X.; Li, Q.H.; Liu, Q.; Cheng, Yan; Zheng, Yufeng; Xi, Tao; Wei, Shicheng

doi:10.1016/j.msec.2012.07.026

Cited by 20 publications

(5 citation statements)

References 31 publications

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“…6c shows the narrow scan XPS spectrum in the range of 535 and 527 eV, which corresponds to the XPS spectrums for O 1s and Sb 3d 5/2 Different types of oxygen status can show various binding energies, such as ∼530.5 eV for lattice oxygen (e.g. O in SnO 2 /IrO 2 ), 57,58 ∼531.5 eV for O in lattice hydroxyl (e.g. OH in the IrO x OH y ), 47,54,59 and ∼533.3 for O in the adsorbed water; 59 these BEs are also shown in Fig.…”

Section: X-ray Photoelectron Spectroscopy (Xps)mentioning

confidence: 92%

“…Since there has been no reliable method to accurately calculate the ECSA of the iridium-based species, the anodic oxidation charge is frequently used as a relative measure for the ECSA of iridium. 9,58,62 The anodic peak charge was obtained from the CV at 60 mV/s, and the normalized polarization curves are presented in Fig. 15.…”

Section: Cyclic Voltammograms (Cvs)-cyclicmentioning

confidence: 99%

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Effect of Calcination Temperature on the Morphological and Electrochemical Characteristics of Supported Iridium Hydroxyoxide Electrocatalysts for the PEM Electrolyzer Anode

Karimi

Bazylak

Peppley

2017

J. Electrochem. Soc.

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The iridium hydroxyoxide, IrO x (OH) y , supported on antimony tin oxide was synthesized using a polyol method for oxygen evolution reaction. The effects of heat-treatment (calcination) on the chemical, physical and electrochemical characteristics of the electrocatalyst are studied. Changes in the physical and chemical structure of the electrocatalyst due to heat-treatment were investigated using Xray diffraction, scanning electron microscopy/energy dispersive X-ray spectroscopy, transmission electron microscopy, nitrogen physisorption, and X-ray photoelectron spectroscopy. The electrocatalysts were also electrochemically characterized using cyclic and linear sweep voltammetry measurements. The results showed that the IrO x (OH) y electrocatalyst synthesized with the polyol method had an amorphous structure with a particle size distribution of 1-5 nm. Calcination at temperatures higher that 500 • C increased the particle size of the iridium species to approximately 30 nm, decreased the surface area by 50%, and altered the structure of iridium based materials from amorphous iridium-hydroxyoxide (IrO x (OH) y ) to crystalline iridium oxide (IrO 2 ). Furthermore, the oxidation charge measured from the cyclic voltammograms decreased by roughly 80% and the Tafel slope increased by 25%. The amorphous IrO x (OH) y electrocatalyst had higher activity and better performance (more than 90%) compared to the crystalline IrO 2 .

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Section: X-ray Photoelectron Spectroscopy (Xps)mentioning

confidence: 92%

Section: Cyclic Voltammograms (Cvs)-cyclicmentioning

confidence: 99%

Effect of Calcination Temperature on the Morphological and Electrochemical Characteristics of Supported Iridium Hydroxyoxide Electrocatalysts for the PEM Electrolyzer Anode

Karimi

Bazylak

Peppley

2017

J. Electrochem. Soc.

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“…1. The results show that this products has a good resistance for heat, the initial weight loss is generally around 200℃, this is because of the volatilization for water, the weight loss is not significant, but the weight loss have a more substantial change at about 290℃.This is explained by the fact that rigid segments such as carbamate segments of the WPU were decomposed at 250-360℃, and flexible segments such as polyether segments were decomposed at 380-420℃ [5], and the -SO 3 H of SPEEK can also be decomposed Temperature/℃ SPEEK wt /% Fig. 1 TGA of the films of the coating for SPEEK Fig.…”

Section: Thermogravimetric Analyzer (Tga)mentioning

confidence: 95%

Structures and Properties of the Coating for SPEEK/WPU

Chen

Guo

2011

AMM

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SPEEK can be dispersed in water as well as WPU, so the coating for SPEEK/WPU can be obtained in the water, and its films were investigated on the structures and properties by SEM, TGA, Shore Durometer and so forth, the results show that SPEEK as a micro-phase can disperse in WPU phase, and there is a good thermal stability when the temperature is below 290°C, and there is good improvement on the hardness of the films of coating that is about 60HA-65HA. The pH of the coating for SPEEK/WPU is about 7.0-8.0. The ratio of water absorption for films of the coating for SPEEK/WPU is about 10% and is below that of WPU, swelling of the films for solvents is also below that of WPU.

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“…High-quality ultra-thin film of CVD graphene [40], hexagonal boron nitride (h-BN) [41], magnetron sputtering HEAs [42] and dip-coated SAMs [43] have shown great ability to prevent metals from corrosion in salty solution. In addition, some metal oxide layers (e.g., Ru oxide [44] and Ir oxide [45]) have also been proven as reliable metal corrosion resistants.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Barrier Layer of Cu Interconnects

Tian

Teng

et al. 2020

Materials

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The barrier layer in Cu technology is essential to prevent Cu from diffusing into the dielectric layer at high temperatures; therefore, it must have a high stability and good adhesion to both Cu and the dielectric layer. In the past three decades, tantalum/tantalum nitride (Ta/TaN) has been widely used as an inter-layer to separate the dielectric layer and the Cu. However, to fulfill the demand for continuous down-scaling of the Cu technology node, traditional materials and technical processes are being challenged. Direct electrochemical deposition of Cu on top of Ta/TaN is not realistic, due to its high resistivity. Therefore, pre-deposition of a Cu seed layer by physical vapor deposition (PVD) or chemical vapor deposition (CVD) is necessary, but the non-uniformity of the Cu seed layer has a devastating effect on the defect-free fill of modern sub-20 or even sub-10 nm Cu technology nodes. New Cu diffusion barrier materials having ultra-thin size, high resistivity and stability are needed for the successful super-fill of trenches at the nanometer scale. In this review, we briefly summarize recent advances in the development of Cu diffusion-proof materials, including metals, metal alloys, self-assembled molecular layers (SAMs), two-dimensional (2D) materials and high-entropy alloys (HEAs). Also, challenges are highlighted and future research directions are suggested.

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Surface characteristics and electrochemical corrosion behavior of NiTi alloy coated with IrO2

Cited by 20 publications

References 31 publications

Effect of Calcination Temperature on the Morphological and Electrochemical Characteristics of Supported Iridium Hydroxyoxide Electrocatalysts for the PEM Electrolyzer Anode

Effect of Calcination Temperature on the Morphological and Electrochemical Characteristics of Supported Iridium Hydroxyoxide Electrocatalysts for the PEM Electrolyzer Anode

Structures and Properties of the Coating for SPEEK/WPU

Recent Advances in Barrier Layer of Cu Interconnects

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