Characterization and application of Cu based superhydrophobic catalyst

Anbarasan, R.; Palanikumar, S.; Devi, A. Anitha; Chen, Ping‐Hei; Tung, Kuo‐Lun

doi:10.1016/j.pnsc.2019.08.002

Cited by 6 publications

(3 citation statements)

References 49 publications

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“…The strong peak around 1000 cm −1 in the FTIR spectrum (Figure 4) of the CSA-pumice in powder form corresponds to Si-O stretching vibrations. A twin peak between 2950 and 3600 cm -1 may show the existence of Cu co-planarity during Cu salt formation [19]. The -CH stretchings of stearic acid in the spectrum of the CSA-pumice are seen in the range of 2800-2950 cm -1 .…”

Section: Characterization Of the Volcanic Pumice Samplesmentioning

confidence: 98%

Chemical Inferences Drawn From Volcanic Pumice

Benlikaya

KAHRIMAN²

2021

Celal Bayar Üniversitesi Fen Bilimleri Dergisi

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The idea to conduct this study suggested itself amid attempts to respond to a question concerning the Kula Geopark. The question was whether the samples taken from the site could be used to teach Physical Chemistry and Nanoscience in laboratory. With this end in view, firstly the pumice samples were characterized by X-ray Fluorescence Spectroscopy, Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy analyses. Next, after observing superhydrophilic nature of the pumice with porous structure containing various metal oxides, the samples were coated with copper stearate dispersion using a spraying method. And then the wettability properties and contact angles of the copper stearate-treated samples were determined. Given the structure of the pumice samples and other findings, it was discussed which models would apply to the wettability of these samples

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Section: Characterization Of the Volcanic Pumice Samplesmentioning

confidence: 98%

Chemical Inferences Drawn From Volcanic Pumice

Benlikaya

KAHRIMAN²

2021

Celal Bayar Üniversitesi Fen Bilimleri Dergisi

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“…Furthermore, XPS can be applied to a greater variety of materials, adding polymers, glasses, and other insulating materials to the group of conductors and semiconductors typically studied with AES. XPS is used everywhere where surface or thin film composition plays a critical role in performance, including nanomaterials [43,44], photovoltaics [45,46], catalysis [47,48], corrosion [49], and general support of industrial research and manufacturing [50].…”

Section: Auger Electron Spectroscopymentioning

confidence: 99%

Spectroscopic Methods Used in Implant Material Studies

et al. 2020

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It is recognized that interactions between most materials are governed by their surface properties and manifest themselves at the interface formed between them. To gain more insight into this thin layer, several methods have been deployed. Among them, spectroscopic methods have been thoroughly evaluated. Due to their exceptional sensitivity, data acquisition speed, and broad material tolerance they have been proven to be invaluable tools for surface analysis, used by scientists in many fields, for example, implant studies. Today, in modern medicine the use of implants is considered standard practice. The past two decades of constant development has established the importance of implants in dentistry, orthopedics, as well as extended their applications to other areas such as aesthetic medicine. Fundamental to the success of implants is the knowledge of the biological processes involved in interactions between an implant and its host tissue, which are directly connected to the type of implant material and its surface properties. This review aims to demonstrate the broad applications of spectroscopic methods in implant material studies, particularly discussing hard implants, surface composition studies, and surface–cell interactions.

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“…The study of metal, silicon (Si) interactions, − and formation of interface is important owing to its application in the electronics and semiconductor industry. − With Si-based technologies still governing the integrated circuits, the Cu–Si system has been of particular importance in delivering promising applications from silicon bronzes to catalysis, − microelectronics, Li-ion batteries, , solar cells, − and more. Copper (Cu) with its low cost, low electrical resistivity (∼1.7 μΩ cm), high melting point (1357.6 K), and low diffusivity showed tremendous potential over aluminum for applications in the electronic devices such as Schottky junctions, metal gates and local interconnects …”

Section: Introductionmentioning

confidence: 99%

Intermediate Cu-O-Si Phase in the Cu-SiO₂/Si(111) System: Growth, Elemental, and Electrical Studies

et al. 2021

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We investigate here the strain-induced growth of Cu at 600 °C and its interactions with a thermally grown, 270 nm-thick SiO2 layer on the Si(111) substrate. Our results show clear evidence of triangular voids and formation of triangular islands on the surface via a void-filling mechanism upon Cu deposition, even on a 270 nm-thick dielectric. Different coordination states, oxidation numbers, and chemical compositions of the Cu-grown film are estimated from the core level X-ray photoelectron spectroscopy (XPS) measurements. We find evidence of different compound phases including an intermediate mixed-state of Cu–O–Si at the interface. Emergence of a mixed Cu–O–Si intermediate state is attributed to the new chemical states of Cu x+, O x , and Si x+ observed in the high-resolution XPS spectra. This intermediate state, which is supposed to be highly catalytic, is found in the sample with a concentration as high as ∼41%. Within the Cu–O–Si phase, the atomic percentages of Cu, O, and Si are ∼1, ∼86, and ∼13%, respectively. The electrical measurements carried out on the sample reveal different resistive channels across the film and an overall n-type semiconducting nature with a sheet resistance of the order of 106 Ω.

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Characterization and application of Cu based superhydrophobic catalyst

Cited by 6 publications

References 49 publications

Chemical Inferences Drawn From Volcanic Pumice

Chemical Inferences Drawn From Volcanic Pumice

Spectroscopic Methods Used in Implant Material Studies

Intermediate Cu-O-Si Phase in the Cu-SiO₂/Si(111) System: Growth, Elemental, and Electrical Studies

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Characterization and application of Cu based superhydrophobic catalyst

Cited by 6 publications

References 49 publications

Chemical Inferences Drawn From Volcanic Pumice

Chemical Inferences Drawn From Volcanic Pumice

Spectroscopic Methods Used in Implant Material Studies

Intermediate Cu-O-Si Phase in the Cu-SiO2/Si(111) System: Growth, Elemental, and Electrical Studies

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Intermediate Cu-O-Si Phase in the Cu-SiO₂/Si(111) System: Growth, Elemental, and Electrical Studies