Morphological and surface studies of ultrasonically treated Raney nickel hydrogen-deuterium exchange catalysts

Journal Article · Thu Feb 01 04:00:00 EST 1990 · Langmuir; (USA)

DOI:https://doi.org/10.1021/la00092a020· OSTI ID:6611468

Cioffi, E A ^[1]; Willis, W S; Suib, S L ^[2]

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1. Yale Univ., New Haven, CT (USA)
2. Univ. of Connecticut, Storrs (USA)

Previous surface studies of ultrasonicated Raney nickel catalysts have shown that ultrasonication leads to reduction of surface Ni species to the metallic state. Surface impurities that may poison the Raney nickel catalyst have also been removed during ultrasonication. Negligible increases in surface area are observed after ultrasound treatment of the catalysts even though their activities and selectivities in {sup 2}H incorporation into carbohydrates and glycosphingolipids are markedly improved. The surface and morphological changes taking place during ultrasonic treatment are the focus of this paper. Cr{sup 3+}- and Mo{sup 6+}-doped Raney Ni catalysts have been studied before and after ultrasonciation with scanning electron microscopy, X-ray photoelectron spectroscopy, and secondary ion mass spectrometry.

• OSTI ID: 6611468
• Journal Information: Langmuir; (USA), Journal Name: Langmuir; (USA) Vol. 6:2; ISSN 0743-7463; ISSN LANGD
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CATALYSTS
CHARGED PARTICLES
CHROMIUM IONS
DATA
DATA ANALYSIS
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
IONS
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
MOLYBDENUM IONS
MORPHOLOGY
NICKEL
NUMERICAL DATA
SURFACE PROPERTIES
TRANSITION ELEMENTS