Výsledky vyhledávání - "Olli J. Pakkanen"

Hydrogen Evolution Reaction on the Single-Shell Carbon-Encapsulated Iron Nanoparticle: A Density Functional Theory Insight

Autor: Geraldine Cilpa-Karhu, Kari Laasonen, Olli J. Pakkanen

Publikováno v: The Journal of Physical Chemistry C. 123:13569-13577

Platinum (Pt)-free catalysts for the hydrogen evolution reaction (HER) is currently a blooming research topic in view of the high cost and scarcity of Pt. Experiments on single-shell carbon-encapsu...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66145557ae722ab9ddb0f3f85215d008
https://doi.org/10.1021/acs.jpcc.9b01041

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Experimental and Computational Investigation of Hydrogen Evolution Reaction Mechanism on Nitrogen Functionalized Carbon Nanotubes

Autor: Rasmus Kronberg, Sami Tuomi, Maryam Borghei, Kari Laasonen, Jani Sainio, Tanja Kallio, Olli J. Pakkanen, Esko I. Kauppinen, Albert G. Nasibulin

Publikováno v: ChemCatChem. 10:3872-3882

Designing earth-abundant element based efficient and durable electrocatalysts for hydrogen evolution reaction (HER) is attracting growing attention as the renewable electricity supply sector urgently needs sustainable methods for storing energy. Nitr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e1a63432c4c9b0fa5bb5246fe0251ed
https://doi.org/10.1002/cctc.201800479

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The role of imidoselenium(II) chlorides in the formation of cyclic selenium imides via cyclocondensation

Autor: J. Mikko Rautiainen, Aino J. Karhu, Tristram Chivers, Risto S. Laitinen, Olli J. Pakkanen, Raija Oilunkaniemi

Publikováno v: Dalton transactions (Cambridge, England : 2003). 45(14)

The third member of the series of imidoselenium(II) chlorides ClSe[N(tBu)Se]nCl (n = 3) (9) has been isolated from the cyclocondensation reaction of tBuNH2 and SeCl2 in THF in a molar ratio of ca. 3:1 and characterized in the form of two polymorphs 9

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5c7f58a3d95f3be79db2d489c301fb9
https://pubmed.ncbi.nlm.nih.gov/26629863

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Experimental and Computational (77)Se NMR Investigations of the Cyclic Eight-Membered Selenium Imides 1,3,5,7-Se4(NR)4 (R = Me, (t)Bu) and 1,5-Se6(NMe)2

Autor: Tristram Chivers, Risto S. Laitinen, Olli J. Pakkanen, Aino J. Karhu, Raija Oilunkaniemi, J. Mikko Rautiainen

Publikováno v: Inorganic chemistry. 54(10)

The cyclocondensation reaction of equimolar amounts of SeCl2 and (Me3Si)2NMe in THF affords 1,3,5,7-Se4(NMe)4 (5b) [δ((77)Se) = 1585 ppm] in excellent yield. An X-ray structural determination showed that 5b consists of cyclic, puckered crown-shaped

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad21572f448d3565f7234d0f1ffc4dfb
https://pubmed.ncbi.nlm.nih.gov/25932943

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Tetracyclic silaheterocycle formed through a pericyclic reaction cascade including a two-fold intramolecular C–C bond activation

Autor: Joschua Helmer, Olli J. Pakkanen, Chris Gendy, Alexander Hepp, Heikki M. Tuononen, Felicitas Lips

Publikováno v: Chemical Communications. 58(21):3549-3552

Reductive debromination of the tribromoamidosilane 2 gave the tetracyclic silaheterocycle 3 through a unique reaction cascade involving unprecedented two-fold intramolecular cycloaddition by transient silylenes. Experimental and computational analyse

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