Characterization of the surface film on Zr-based bulk metallic glass using X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM)

Tan, Ming; Li, Qiao; Zhang, Nian; Hu, Huiqin; Li, Biao; Kang, Xian-jie

doi:10.1016/j.jallcom.2011.03.051

Cited by 14 publications

(10 citation statements)

References 21 publications

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“…3(b), for Zr (3d) there are two peaks at 182.3 and 184.6 eV, which belongs to Zr (3d 5/2 ) and Zr (3d 3/2 ), respectively. These are consistent with that reported in literature [47]. From Fig.…”

Section: Xps Spectra Of the Prepared Cds-coated Zro 2 Compositesupporting

confidence: 94%

Assisted sonocatalytic degradation of pethidine hydrochloride (dolantin) with some inorganic oxidants caused by CdS-coated ZrO2 composite

Huang

Wei

et al. 2017

Separation and Purification Technology

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CdS was synthesized via hydrothermal method and CdS-coated ZrO 2 composite was prepared via chemical precipitation method. And then they were characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). After that, the sonocatalytic degradation of pethidine hydrochloride (dolantin) in aqueous solution was conducted adopting CdS-coated ZrO 2 composite as sonocatalyst with inorganic oxidant assisted. In addition, some influencing factors such as inorganic oxidant kind, including persulfate (K 2 S 2 O 8), perchlorate (NaClO 4) and periodate (KIO 4), inorganic oxidant concentration and ultrasonic irradiation time on sonocatalytic degradation of pethidine hydrochloride were examined by using gas chromatograph. The experimental results showed that the used inorganic oxidants can effectively assisted the sonocatalytic degradation of pethidine hydrochloride caused by CdS-coated ZrO 2 composite and the increase effects arrange as the order of K 2 S 2 O 8 > KIO 4 > NaClO 4. And the best sonocatalytic degradation ratio (95.50 %) of pethidine hydrochloride could be obtained when the conditions of 10.00 mmol/L K 2 S 2 O 8 , 1.00 g/L prepared CdS-coated ZrO 2 composite, 135 min

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Section: Xps Spectra Of the Prepared Cds-coated Zro 2 Compositesupporting

confidence: 94%

Assisted sonocatalytic degradation of pethidine hydrochloride (dolantin) with some inorganic oxidants caused by CdS-coated ZrO2 composite

Huang

Wei

et al. 2017

Separation and Purification Technology

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“…On the other hand, the electrode potential of Zr (−1.904 V MMSE ) is lower compared with Cu (−0.038 V MMSE ), and the preferential oxidation of a metal in an alloy can be determined by the standard electrode potential [31,32]. Hence, the zirconium in the Zr-Cu glassy coatings would be preferentially oxidized and a stable ZrO 2 layer is formed.…”

Section: Discussionmentioning

confidence: 99%

Insights on the Role of Copper Addition in the Corrosion and Mechanical Properties of Binary Zr-Cu Metallic Glass Coatings

et al. 2017

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Abstract:The effect of copper addition on the corrosion resistance and mechanical properties of binary Zr 100-x Cu x (x = 30, 50, 80, 90 at.%) glassy coatings was investigated by means of electrochemical measurements, scanning electron microscopy (SEM), energy dispersive analysis spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and nano-indentation techniques. The corrosion resistance in 0.01 M deaerated H 2 SO 4 solution and the mechanical properties of the Zr-Cu glassy coatings depend considerably upon the copper content in the glassy matrix. The top surfaces of the Zr-Cu coatings with lower Cu content were covered by a compact protective ZrO 2 passive film. The competition between the oxidation of Zr atoms (ZrO 2 film formation) and the oxidation-dissolution of Cu atoms assumed the most important role in the electrochemical behavior of the Zr-Cu glassy coatings. The generation of ZrO 2 on the surface benefited the formation of passive film; and the corrosion resistance of the metallic glass coatings depended on the coverage degree of ZrO 2 passive film. The evolution of free volume affected both the mechanical and corrosion behaviors of the Zr-Cu glassy coatings.

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“…4(E)). 43 Signals attributable to Fe-O, 35,44 Zr-N, 45 and Zr-O 39,45,46 are observed for Fe-Zr, reflecting the reaction between K 4 Fe(CN) 6 · 3H 2 O and ZrOCl 2 · 8H 2 O. After TETA modification, the Zr(3d) binding energies of Fe-Zr-TETA-200 are lower in value (182.2 and 184.7 eV) compared with those of Fe-Zr (182.5 and 182.8 eV) ( Fig.…”

Section: Ft-irmentioning

confidence: 99%

Synthesis of amine-modified solid Fe-Zr adsorbents for CO₂adsorption

Yang

Liu

Chen

et al. 2015

J. Chem. Technol. Biotechnol.

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BACKGROUND With the aggravation of the greenhouse effect, much attention is given to the capture of CO2 before its emission into the atmosphere. So far, various solid adsorbents have been developed and used. Among them, solid materials modified with organic‐amines are promising on account of good adsorption and desorption performance. In the present work, triethylenetetramine (TETA) modified solid Fe‐Zr adsorbents were synthesized and characterized. The performance of the adsorbents for CO2 adsorption was tested in a stream of 5% CO2. RESULTS The Fe‐Zr support was first synthesized, and TETA was successfully grafted onto its surface. The adsorbents show good thermal stability and CO2 adsorption ability. Increase in the amount of TETA and increased gas flow rate have a positive influence whereas increase of the adsorption temperature has a negative effect on CO2 adsorption capacity. At 200 mg TETA loading and a flow rate of 20 cm3 g−1, the adsorbent achieves a maximum adsorption capacity of 4.1 mmol g−1 at 75 °C. In addition, the adsorbent exhibits excellent reusability and cyclic performance. CONCLUSION Remarkable adsorption capacity and good recyclability suggest that synthesized TETA‐functionalized Fe‐Zr adsorbents have high potential for CO2 capture in industry. © 2015 Society of Chemical Industry

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Characterization of the surface film on Zr-based bulk metallic glass using X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM)

Cited by 14 publications

References 21 publications

Assisted sonocatalytic degradation of pethidine hydrochloride (dolantin) with some inorganic oxidants caused by CdS-coated ZrO2 composite

Assisted sonocatalytic degradation of pethidine hydrochloride (dolantin) with some inorganic oxidants caused by CdS-coated ZrO2 composite

Insights on the Role of Copper Addition in the Corrosion and Mechanical Properties of Binary Zr-Cu Metallic Glass Coatings

Synthesis of amine-modified solid Fe-Zr adsorbents for CO₂adsorption

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Characterization of the surface film on Zr-based bulk metallic glass using X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM)

Cited by 14 publications

References 21 publications

Assisted sonocatalytic degradation of pethidine hydrochloride (dolantin) with some inorganic oxidants caused by CdS-coated ZrO2 composite

Assisted sonocatalytic degradation of pethidine hydrochloride (dolantin) with some inorganic oxidants caused by CdS-coated ZrO2 composite

Insights on the Role of Copper Addition in the Corrosion and Mechanical Properties of Binary Zr-Cu Metallic Glass Coatings

Synthesis of amine-modified solid Fe-Zr adsorbents for CO2adsorption

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Synthesis of amine-modified solid Fe-Zr adsorbents for CO₂adsorption