The influence of hydrogen on the atomic distribution function and electrical resistance of amorphous chromium films

Белевцев, Б. И.; Buckel, W.; Hasse, J.

doi:10.1007/bf01313567

Cited by 4 publications

(2 citation statements)

References 8 publications

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“…It proclaims that Ni 0 has a higher rate constant than other used catalysts. The catalyst’s activity can be explained based on the hydrogen intrinsic of each catalyst . The Ni and hydrogen interactions engender an ionic form of hydrogen, which evidently participates in the HDC process …”

Section: Resultsmentioning

confidence: 99%

“…The catalyst's activity can be explained based on the hydrogen intrinsic of each catalyst. 43 The Ni and hydrogen interactions engender an ionic form of hydrogen, which evidently participates in the HDC process. 14 It has been reported that the complete degradation of 4C2AP at a small scale (200 mL) and 89.9% degradation at a large scale (7000 mL) were obtained by combined US + UV + O 3 treatment.…”

Section: Screening Of Various Catalystsmentioning

confidence: 97%

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Hydrodechlorination of 4-Chloro-2-Aminophenol into a Recyclable Product Using Ni- and Cu-Based Catalysts

Shetty

Raut

Kulkarni

et al. 2022

Ind. Eng. Chem. Res.

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The 4-chloro-2-amino phenol (4C2AP) bearing wastewater is produced while manufacturing dyes and pharmaceutical ingredients. Ni-and Cu-based cost-effective catalysts were developed, typically characterized, and subjected to hydrodechlorination (HDC) of 4C2AP. The role of reducing agents, concentration, pH of wastewater, presence of salt, reaction temperature, catalyst reuse, and the kinetics was investigated. A selective makeover of 2-amino phenol (2AP) was analyzed by HPLC, LCMS, and NMR. A complete HDC of 4C2AP with remarkable selectivity (98%) toward 2AP was achieved using a Ni 0 catalyst and NaBH 4 at room temperature. It is observed that the alkaline condition, the presence of salt, and a high reaction temperature favor the HDC process. A maximum of 1 g L −1 of the Ni 0 loading is found to be sufficient to dechlorinate the pollutant. It can be concluded that the catalytic HDC is a technically viable and inexpensive process for the conversion of 4C2AP into a valuable product, 2AP.

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Section: Resultsmentioning

confidence: 99%

Section: Screening Of Various Catalystsmentioning

confidence: 97%

Hydrodechlorination of 4-Chloro-2-Aminophenol into a Recyclable Product Using Ni- and Cu-Based Catalysts

Shetty

Raut

Kulkarni

et al. 2022

Ind. Eng. Chem. Res.

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Study of structural relaxation processes of nonequilibrium states in quench‐condensed indium films with hydrogen impurities below 5 K

Белевцев

Komnik

Vatsuk

1994

Physica Status Solidi (b)

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The structural state of quench-condensed polycrystalline indium films with hydrogen impurities is studied by the electron diffraction method. The films (3 to 14 nm thick) are deposited with rates of 0.3 to 2 nmjs in hydrogen atmosphere (pH M 1.6 x Pa) onto substrates cooled by liquid helium to 2.5 K. The films exhibit high nonequilibrium hydrogen concentration (up to z 15 at%) and their state is labile. During the transition to a more stable state (at constant temperatures or with heating in the range 2.5 K s T s 5 K) hydrogen in films is highly mobile. The attendant structural relaxation consists in alternating increase and decrease of the lattice parameters in microcrystallites. Simultaneously crystallites undergo inhomogeneous strains. The behaviour of the relaxation process shows some symptoms of spinodal decomposition. There are, however, essential distinctions from the features of spinodal decomposition, which are known for bulk metal-hydrogen systems. Results obtained are discussed taking into account the influence of the two-dimensionality of the films and their inhomogeneous (granular) structure on nonequilibrium state decomposition.Der Strukturzustand abgeschreckt-kondensierter feinkristalliner Indium-Schichten mit Wasserstoffzusatz wird mit Hilfe von in situ Elektronenbeugung untersucht. Die Schichten (3 bis 14 nm dick) werden bei Aufdampfraten von 0,3 bis 2 nm/s in Wasserstoffatmosphiire (pH = 1,6 x lo-* Pa) auf einen

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Formation region of amorphous thin CoZr and CuZr films prepared by cocondensation on hot substrates

Regenbrecht

Minnigerode

Samwer

1990

Z. Physik B - Condensed Matter

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The influence of hydrogen on the atomic distribution function and electrical resistance of amorphous chromium films

Cited by 4 publications

References 8 publications

Hydrodechlorination of 4-Chloro-2-Aminophenol into a Recyclable Product Using Ni- and Cu-Based Catalysts

Hydrodechlorination of 4-Chloro-2-Aminophenol into a Recyclable Product Using Ni- and Cu-Based Catalysts

Study of structural relaxation processes of nonequilibrium states in quench‐condensed indium films with hydrogen impurities below 5 K

Formation region of amorphous thin CoZr and CuZr films prepared by cocondensation on hot substrates

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