Formation of micro/nano pits with high catalytic activity on Fe80B20 amorphous alloy

Zhang, X.H.; Zeng, Yue; Yin, Liping; Jiang, Jianqing; Pan, Ye; Li, Runguang; Liu, L.; Li, Tingan; Chan, Kang Cheung

doi:10.1016/j.corsci.2018.06.023

Cited by 9 publications

(4 citation statements)

References 23 publications

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“…A similar trend, the area proportion increases with the decrease in pit size, is also reported in previous work [30]. The size and area proportion of etch pits are dependent on the applied voltage or current density [31]. The activity of aluminum is high than titanium in the Ti-30Zr-5Al-3V alloy.…”

Section: Surface Morphology With a Micro-nano Structuresupporting

confidence: 88%

Formation of the carbonated hydroxyapatite film on Ti‐30Zr‐5Al‐3V bio‐alloy

Liu

Cui

Liang

et al. 2023

Materialwissenschaft Werkst

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The Ti‐30Zr‐5Al‐3V titanium alloy has an ultra‐low Young's modulus. So, it promises great application potential as a hard‐tissue implanted biomaterial. However, its surface performances need to be improved before clinical applications. In this work, a carbonated hydroxyapatite film is deposited on the surface of Ti‐30Zr‐5Al‐3V bio‐alloy using electrochemical methods. Microstructure, film‐substrate adhesion, and electrochemical corrosion behavior of carbonated hydroxyapatite deposited specimens in Ringer's solution are investigated. A homogeneous, dense, and fully covered carbonated hydroxyapatite film forms on the surface after depositing at 3 V, 90 °C for 120 minutes. The formation mechanism of the carbonated hydroxyapatite film on the micro‐nano structure surface is revealed. The corrosion performance of carbonated hydroxyapatite deposited specimens in Ringer's solution is evaluated by using potentiodynamic polarization curves. The carbonated hydroxyapatite deposition obviously enhanced the corrosion resistance of the Ti‐30Zr‐5Al‐3V bio‐alloy.

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Section: Surface Morphology With a Micro-nano Structuresupporting

confidence: 88%

Formation of the carbonated hydroxyapatite film on Ti‐30Zr‐5Al‐3V bio‐alloy

Liu

Cui

Liang

et al. 2023

Materialwissenschaft Werkst

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show abstract

“…These defects are electrochemically more active than the glassy area. Therefore, quicker leaching will take place in these located areas and coarsening near there is thus fastened 25 . Though the pore size is in a wide range of distribution, the metallic ligaments are relatively homogenous and their width is about 5 nm.…”

Section: Experimental Methodsmentioning

confidence: 99%

Nanoporous Pd with Tunable Pore Size prepared by Dealloying Pd 30Cu40Ni10P20 Metallic Glass and Their Catalytic Performance

et al. 2019

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This work reports the formation of nanoprous Pd with tunable pore size and high stability by dealloying Pd 30 Cu 40 Ni 10 P 20 metallic glass. The results show that lower dealloying temperature results in smaller pore size while the dealloying duration does not cause distinct change in the porous structure, even at an ambient dealloying temperature. The glassy structure and the multiple components in the precursor alloy are attributed to the hindered diffusion of Pd atoms and a slow coarsening rate of the nanoprous structure. The fully dealloyed porous sample with the smallest average pores size of 10 nm exhibit much higher catalytic activity when compare with the commercial Pd/C catalysts while the specimen with an average pores size of 13 nm shows the highest catalytic stability among the fully dealloyed alloys.

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“…The former had good reusability due to the formation of through-hole structure. Zhang et al [22] used electrochemical etching to make some micronano-scale pits on the Fe 80 B 20 amorphous alloy. Comparing the obtained monolithic material with the spinning amorphous alloy, it was found that the former was more efficient in degrading the direct blue 15 solution.…”

Section: Introductionmentioning

confidence: 99%

Adsorption and Degradation of Methylene Blue Aqueous Solution by Fe‐based Amorphous Alloy

Li,

Zhai,

Tian

et al. 2023

Physica Status Solidi (a)

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Fe-based amorphous ribbons with the brand name 1K101 can adsorb methylene blue (MB) solution. The adsorption reaction is multilayer adsorption, in which chemical adsorption plays a major role. There are also some processes like physical adsorption, liquid phase diffusion, and internal diffusion of particles. The adsorption reaction is exothermic and spontaneous, which is more favorable at low temperatures. During the adsorption process, the entropy value decreases, the degree of disorder and freedom of the solution decreases, and the structure also changes. What's more, H 2 O 2 , pH, ribbons's dosage, dye's concentration, and temperature affect the degradation performance of 1K101 on MB. Degradation reactions are mainly controlled by surface chemical reactions, including chemical reduction reactions and adsorption. When c(H 2 O 2 ) is 15 mM, pH is 2, ribbons' dosage is 0.9 g, c(MB) is 20 mg L À1 , temperature is 338 K, the degradation effect is the best. The optimal conditions with lowest overall cost obtained under the orthogonal experiment are: c(H 2 O 2 ) = 20 mM, pH = 2, ribbons's dosage = 0.7 g, c(MB) = 20 mg L À1 , and T = 338 K. Overall, 1K101 amorphous ribbon can be utilized to treat MB solution, and its degradation effect is better than adsorption effect, which can provide new ideas for the reuse of waste amorphous ribbon and the treatment of azo dye wastewater.

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Formation of micro/nano pits with high catalytic activity on Fe80B20 amorphous alloy

Cited by 9 publications

References 23 publications

Formation of the carbonated hydroxyapatite film on Ti‐30Zr‐5Al‐3V bio‐alloy

Formation of the carbonated hydroxyapatite film on Ti‐30Zr‐5Al‐3V bio‐alloy

Nanoporous Pd with Tunable Pore Size prepared by Dealloying Pd 30Cu40Ni10P20 Metallic Glass and Their Catalytic Performance

Adsorption and Degradation of Methylene Blue Aqueous Solution by Fe‐based Amorphous Alloy

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