Reneja niķeļa katalizatoru elementsastāvs, fāžu sastāvs un aktivitāte
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Latvijas Universitāte
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Maģistra darba teorētiskajā daļā dots Reneja niķeļa katalizatoru apraksts, katalizatoru veidi, katalizatoru izmantošanas veidi, katalizatora aktivitātes noteikšanas metodikas, Re-Ni aktivitātes noteikšana pie dažādām temperatūrām, NiAl sakausējumu fāžu sastāva apraksts. Darba gaitā rentgenspektrometriski noteikts Re-Ni katalizatoru elementsastāvs, kas salīdzināts gravimetrijas rezultātiem. Ar rentgendifraktometrijas metodi tika noteikts Re-Ni katalizatoru fāžu sastāvs. Visiem katalizatoriem noteikta aktivitāte pēc ūdeņraža peroksīda katalītiskās sadalīšanas, kā arī eksperimentāli noteikts Re-Ni katalizatoru fāžu sastāvs pēc izkarsēšanas 1000°C temperatūrā.
KATALIZATORI, RENEJA NIĶELIS, NiAl SAKAUSĒJUMS, KATALIZATORU AKTIVITĀTE, RENTGENSPEKTROMETRIJA, FĀŽU SASTĀVS, ELEMENTSASTĀVS, GRAVIMETRIJA, ŪDEŅRAŽA PEROKSĪDA KATALĪTISKĀ SADALĪŠANA.
In the theoretical part of the master work gives a description of catalysis, catalyst types, catalyst uses, catalyst activity detection method, Raney nickel description of the operating principle of a catalyst, the catalyst activity for ways to Re-Ni activity in various temperatures, Phase composition description of the NiAl alloy. In the experimental part was determinate Re-Ni catalyst elemental composition by XRF, which was compared with the gravimetry method. And with XRD methods were defined Re-Ni catalyst phase composition. All the catalysts determined activity by catalytic decomposition of hydrogen peroxide, as well as experimentally determined Re-Ni catalyst phase content after heating at 1000 °C temperature. CATALYSTS, RANEY NICKEL, NiAl ALLOYS, ACTIVITY OF THE CATALYST, ROENTGEN SPECTROMETRY, PHASE COMPOSITION, ELEMENTAL COMPOSITION, GRAVIMETRY, CATALYTIC DECOMPOSITION OF HYDROGEN PEROXIDE.
In the theoretical part of the master work gives a description of catalysis, catalyst types, catalyst uses, catalyst activity detection method, Raney nickel description of the operating principle of a catalyst, the catalyst activity for ways to Re-Ni activity in various temperatures, Phase composition description of the NiAl alloy. In the experimental part was determinate Re-Ni catalyst elemental composition by XRF, which was compared with the gravimetry method. And with XRD methods were defined Re-Ni catalyst phase composition. All the catalysts determined activity by catalytic decomposition of hydrogen peroxide, as well as experimentally determined Re-Ni catalyst phase content after heating at 1000 °C temperature. CATALYSTS, RANEY NICKEL, NiAl ALLOYS, ACTIVITY OF THE CATALYST, ROENTGEN SPECTROMETRY, PHASE COMPOSITION, ELEMENTAL COMPOSITION, GRAVIMETRY, CATALYTIC DECOMPOSITION OF HYDROGEN PEROXIDE.