Zobrazeno 1 - 10 of 11 pro vyhledávání: '"Juha Keskiväli"'
2
Low-speed pre-ignition and super-knock in boosted spark-ignition engines: A review
Autor: Kristian Rönn, Andre Swarts, Vickey Kalaskar, Terry Alger, Rupali Tripathi, Juha Keskiväli, Ossi Kaario, Annukka Santasalo-Aarnio, Rolf Reitz, Martti Larmi
Publikováno v: Progress in Energy and Combustion Science. 95:101064
Funding Information: The authors want to thank the support by the Dean’s grant of Aalto University School of Engineering , Henry Ford Foundation of Finland and Technology Industries of Finland, Combustion Engines Branch Group. Publisher Copyright:
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f65e6da614d9346096c31b00b72f3fc
https://doi.org/10.1016/j.pecs.2022.101064
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3
Catalyst for dehydrogenation, method for preparing the catalyst and use
Autor: Pekka Simell, Matti Reinikainen, Matti Putkonen, Laura Keskiväli, Noora Kaisalo, Timo Repo, Juha Keskiväli, Päivi Aakko-Saksa
Publikováno v: Simell, P, Reinikainen, M, Putkonen, M, Keskiväli, L, Kaisalo, N, Repo, T, Keskiväli, J & Aakko-Saksa, P May. 07 2020, Catalyst for dehydrogenation, method for preparing the catalyst and use, Patent No. FI20185940 .
VTT Technical Research Centre of Finland-PURE
The invention relates to a catalyst for dehydrogenation. The catalyst is a Pt catalyst, in which Pt catalyst agent is formed by using a Pt-precursor and is arranged on a support, and the support is selected from TiO2 or gamma-?12O3. Further, the inve
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::362435dae6530fcf1e24d13b1355209f
https://cris.vtt.fi/en/publications/7edad701-7f6c-4719-9ac1-ad4227f80202
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4
Selective Aerobic Oxidation of Alcohols with NO3 − Activated Nitroxyl Radical/Manganese Catalyst System
Autor: Arno Parviainen, Kalle Lagerblom, Juha Keskiväli, Timo Repo, Jere K. Mannisto
Publikováno v: ChemCatChem. 10:2908-2914
A homogeneous Mn(NO3)(2)/2,2,6,6-tetramethylpiperidin-1-yl)oxyl/2-picolinic acid catalyst system is highly active and versatile for the selective aerobic oxidation of alcohols (2,2,6,6-tet-ramethylpiperidin-1-yl)oxyl = TEMPO, 2-picolinic acid = PyCOO
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::819ee4d7165a74785ba2f3ecac1527fd
https://doi.org/10.1002/cctc.201800438
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5
Transition metal triflate catalyzed conversion of alcohols, ethers and esters to olefins
Autor: Arno Parviainen, Timo Repo, Juha Keskiväli, Kalle Lagerblom
Publikováno v: RSC Advances. 8:15111-15118
Herein, we report an efficient transition metal triflate catalyzed approach to convert biomass-based compounds, such as monoterpene alcohols, sugar alcohols, octyl acetate and tea tree oil, to their corresponding olefins in high yields. The reaction
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4c4454b7c8eee9872036841a9866909
https://doi.org/10.1039/c8ra02437e
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6
One-Pot Transformation of Carbohydrates into Valuable Furan Derivatives via 5-Hydroxymethylfurfural
Autor: Juha Keskiväli, Jesus E. Perea‐Buceta, Timo Repo, Pauli Wrigstedt
Publikováno v: ChemCatChem. 9:4244-4255
5-Hydroxymethylfurfural (HMF) constitutes one of the pivotal chemicals to utilize biomass as chemical feedstock. For this approach the vast majority of methods require accessing to pure HMF from biomass before its utilization, thus incorporating one
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a71b10d3fd5fa184309cb17c52cf16fa
https://doi.org/10.1002/cctc.201701106
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8
Isosorbide synthesis from cellulose with an efficient and recyclable ruthenium catalyst
Autor: Teemu T. T. Myllymäki, Marko Vehkamäki, Jaakko Pekka Karjalainen, Kristoffer Meinander, Timo Repo, Sari Rautiainen, Juha Keskiväli, Kalle Lagerblom, Marianna Kemell, Mikko Heikkilä
Publikováno v: GREEN CHEMISTRY. 19(19):4563-4570
Herein, we describe an efficient two-step pathway for isosorbide synthesis from cellulose with the use of new recyclable Ru-catalysts. We show that the oxidative and sulfonation treatments of the new Ru-catalysts increase the acidity and the hydrophi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95f7689352667b525f63009e21000539
http://juuli.fi/Record/0283455417
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9
The Role of Salts and Brønsted Acids in Lewis Acid-Catalyzed Aqueous-Phase Glucose Dehydration to 5-Hydroxymethylfurfural
Autor: Pauli Wrigstedt, Timo Repo, Markku Leskelä, Juha Keskiväli
Publikováno v: ChemCatChem. 7:501-507
The effect of salts and Bronsted acids on the Lewis acid (CrCl3⋅6 H2O)-catalyzed glucose dehydration to 5-hydroxymethylfurfural (HMF) in aqueous media are described. We show that the reaction with bromide salts in place of chlorides leads to higher
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::868b0f4fc0a78ba1716533f52b95d263
https://doi.org/10.1002/cctc.201402941
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10
One-step Pd/C and Eu(OTf)(3) catalyzed hydrodeoxygenation of branched C-11 and C-12 biomass-based furans to the corresponding alkanes
Autor: Kalle Lagerblom, Timo Repo, Pauli Wrigstedt, Juha Keskiväli
Solvent-free NaOH catalyzed aldol condensation of biomass-derived 5-hydroxymethyl furfural (HMF) and furfural with methyl isobutyl ketone (MIBK) was studied, producing branched C-11 and C-12 furan compounds in high yields of up to 96%. Through use of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7529ab536a38ceae627c7b8eaf0153be
http://hdl.handle.net/10138/300365
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