High-entropy alloy nanoparticles/biochar as an efficient catalyst for high-performance treatment of organic pollutants

Miao, Ling-Zhen; Guo, Yuxin; Liu, Ziyi; Li, Yang; Zhu, Jun; Wu, Longmin

doi:10.1016/j.cej.2023.143451

Cited by 18 publications

(2 citation statements)

References 89 publications

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“…1g, PXRD patterns confirmed the face-centered cubic ( fcc ) crystal structure of the HEAs, consistent with the SAED results. 29 Notably, the standard peaks of the FeCo alloy were observed in FeCoNC, while the peaks of the heterophase might be attributed to the unbalanced interaction between the metal sites (Fig. S6†).…”

Section: Resultsmentioning

confidence: 97%

Prussian blue analogue-derived high-entropy alloy nanoarchitectonics for efficient Fenton-like catalysis

Yao,

Wang,

Wang

et al. 2024

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 97%

Prussian blue analogue-derived high-entropy alloy nanoarchitectonics for efficient Fenton-like catalysis

Yao,

Wang,

Wang

et al. 2024

J. Mater. Chem. A

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“…Starting with Fe 2p scan (Figure S4B), the broad peak at 711.93 eV corresponds to Fe 2+ (2p 3/2 ), while the peak addressed at 725.94 eV shows Fe 2+ (2p 1/2 ) of Fe2p. 44 The other peaks appear at 719.95 and 733.15 eV, addressed as Fe 0 and satellite peaks, respectively, which possess mixed valance Fe state. Also, from the deconvoluted XPS spectrum Co2p (Figure S4C), 780.89 (2p 3/2 ) and 796.55 eV (2p 3/2 ) peak ascribed to the Co 2+ of Co2p.…”

Section: Structural Characterizations Of Feconicumn Heamentioning

confidence: 99%

Enhanced energy density of high entropy alloy (Fe‐Co‐Ni‐Cu‐Mn) and green graphene hybrid supercapacitor

Mohanty,

Chowde Gowda,

Gakhad

et al. 2024

Energy Storage

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Given the growing demand for new materials for supercapacitor applications, high entropy alloys (HEAs) are being extensively investigated. They are an efficient alternative to existing energy sources due to their synergistic contribution from individual element. We demonstrate the development of nanostructured HEA (FeCoNiCuMn) as a cathode material with specific capacitance (Cs) of ~388 F g−1 (5 mV s−1). As anode material, green graphene (rice straw biochar) synthesized using pyrolysis shows a maximum Cs of ~560 F g−1 at similar scan rate (5 mV s−1). A hybrid asymmetric liquid state device was assembled using the FeCoNiCuMn nanostructured HEA and green graphene as electrodes. Utilizing the green source, the device provided a high Cs of 83.22 F g−1 at 2 A g−1. The specific energy of the device was 33.4 Wh kg−1 and specific power of 1.7 kW kg−1. The electrochemical behavior of each element in the high entropy composition was studied through post X‐ray photoelectron spectroscopy and scanning electron microscopic analysis. The chemical behavior of FeCoNiCuMn is further investigated using DFT studies. The enhanced electrochemical properties and synergistic contribution of each element of the HEA is studied via d‐band theory. The current study can be utilized to develop asymmetric hybrid supercapacitors as environmental friendly energy source.

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A Prospective on Energy and Environment Applications of High Entropy Alloys

Katiyar,

Tiwary

2024

Trans Indian Natl. Acad. Eng.

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High-entropy alloy nanoparticles/biochar as an efficient catalyst for high-performance treatment of organic pollutants

Cited by 18 publications

References 89 publications

Prussian blue analogue-derived high-entropy alloy nanoarchitectonics for efficient Fenton-like catalysis

Prussian blue analogue-derived high-entropy alloy nanoarchitectonics for efficient Fenton-like catalysis

Enhanced energy density of high entropy alloy (Fe‐Co‐Ni‐Cu‐Mn) and green graphene hybrid supercapacitor

A Prospective on Energy and Environment Applications of High Entropy Alloys

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