@article{MTMT:34742565,
	title = {“Inverted” Cyclic(Alkyl)(Amino)Carbene (CAAC) Ruthenium Complex Catalyzed Isomerization Metathesis (ISOMET) of Long Chain Olefins to Propylene at Low Ethylene Pressure},
	url = {https://m2.mtmt.hu/api/publication/34742565},
	author = {Farkas, Vajk and Csókás, Dániel and Erdélyi, Ádám and Turczel, Gábor and Bényei, Attila Csaba and Nagy, Tibor and Kéki, Sándor and Pápai, Imre and Tuba, Róbert},
	doi = {10.1002/advs.202400118},
	journal-iso = {ADV SCI},
	journal = {ADVANCED SCIENCE},
	volume = {11},
	unique-id = {34742565},
	abstract = {Isomerization Metathesis (ISOMET) reaction is an emerging tool for “open loop” chemical recycling of polyethylene to propylene. Novel, latent N ‐Alkyl substituted Cyclic(Alkyl)(Amino)Carbene (CAAC)–ruthenium catalysts ( 5a‐Ru , 3b‐Ru – 6c‐Ru ) are developed rendering “inverted” chemical structure while showing enhanced ISOMET activity in combination with (RuHCl)(CO)(PPh 3 ) 3  ( RuH ) double bond isomerization co‐catalyst. Systematic investigations reveal that the steric hindrance of the substituents on nitrogen and carbon atom adjacent to carbene moiety in the CAAC ligand have significantly improved the catalytic activity and robustness. In contrast to the NHC‐Ru and CAAC‐Ru catalyst systems known so far, these systems show higher isomerization metathesis (ISOMET) activity (TON: 7400) on the model compound 1‐octadecene at as low as 3.0 bar optimized pressure, using technical grade (3.0) ethylene. The propylene content formed in the gas phase can reach up to 20% by volume.},
	year = {2024},
	eissn = {2198-3844},
	orcid-numbers = {Farkas, Vajk/0000-0002-1189-0032; Csókás, Dániel/0000-0002-4150-477X; Erdélyi, Ádám/0009-0008-0715-8907; Turczel, Gábor/0000-0002-6753-6796; Nagy, Tibor/0000-0001-8568-914X; Pápai, Imre/0000-0002-4978-0365; Tuba, Róbert/0000-0001-8929-2713}
}

@article{MTMT:34546230,
	title = {THE TALE OF ALKYL- AND ACYLCOBALT CARBONYLS,},
	url = {https://m2.mtmt.hu/api/publication/34546230},
	author = {Tuba, Róbert and Kurdi, Róbert and Pályi, Gyula},
	doi = {10.1016/j.jorganchem.2024.123029},
	journal-iso = {J ORGANOMET CHEM},
	journal = {JOURNAL OF ORGANOMETALLIC CHEMISTRY},
	volume = {.2024},
	unique-id = {34546230},
	issn = {0022-328X},
	year = {2024},
	eissn = {1872-8561},
	pages = {123029-123055},
	orcid-numbers = {Kurdi, Róbert/0000-0002-7845-2045}
}

@CONFERENCE{MTMT:34016922,
	title = {Különböző szénatomszámú alfa-olefinek előállítása megújuló és hulladék eredetű paraffinokból},
	url = {https://m2.mtmt.hu/api/publication/34016922},
	author = {Tuba, Róbert and Valyon, József and Hancsók, Jenő},
	booktitle = {Pannon Innovációs Nap},
	unique-id = {34016922},
	year = {2023},
	orcid-numbers = {Hancsók, Jenő/0000-0003-1959-7604}
}

@{MTMT:33833364,
	title = {Catalysts system and process for the preparation of alpha olefins and alpha olefin-containing products from long-chain paraffins},
	url = {https://m2.mtmt.hu/api/publication/33833364},
	author = {Tuba, Róbert and Valyon, József and Hancsók, Jenő and Lónyi, Ferenc and Tomasek, Szabina and Nagyházi, Márton and Miskolczi, Norbert and Horváth, D. Z. and Vikár, Anna and Balla, Á.},
	unique-id = {33833364},
	year = {2023},
	orcid-numbers = {Valyon, József/0000-0002-3608-060X; Hancsók, Jenő/0000-0003-1959-7604; Tomasek, Szabina/0000-0003-1947-5690; Miskolczi, Norbert/0000-0003-4862-0148; Vikár, Anna/0000-0002-3069-3034}
}

@article{MTMT:33779022,
	title = {Making Persistent Plastics Degradable},
	url = {https://m2.mtmt.hu/api/publication/33779022},
	author = {Farkas, Vajk and Nagyházi, Márton and Anastas, Paul T. and Klankermayer, Jürgen and Tuba, Róbert},
	doi = {10.1002/cssc.202300553},
	journal-iso = {CHEMSUSCHEM},
	journal = {CHEMSUSCHEM},
	volume = {16},
	unique-id = {33779022},
	issn = {1864-5631},
	year = {2023},
	eissn = {1864-564X},
	orcid-numbers = {Farkas, Vajk/0000-0002-1189-0032}
}

@{MTMT:33833358,
	title = {Katalizátorrendszer és eljárás alfa-olefinek és alfa-olefin-tartalmú termékek előállítására hosszú szénláncú paraffinokból},
	url = {https://m2.mtmt.hu/api/publication/33833358},
	author = {Tuba, Róbert and Valyon, József and Hancsók, Jenő and Lónyi, Ferenc and Tomasek, Szabina and Nagyházi, Márton and Miskolczi, Norbert and Horváth, D. Z. and Vikár, Anna and Balla, Á.},
	unique-id = {33833358},
	year = {2022},
	orcid-numbers = {Valyon, József/0000-0002-3608-060X; Hancsók, Jenő/0000-0003-1959-7604; Tomasek, Szabina/0000-0003-1947-5690; Miskolczi, Norbert/0000-0003-4862-0148; Vikár, Anna/0000-0002-3069-3034}
}

@article{MTMT:33262683,
	title = {Scalable and continuous access to pure cyclic polymers enabled by ‘quarantined’ heterogeneous catalysts},
	url = {https://m2.mtmt.hu/api/publication/33262683},
	author = {Yoon, Ki-Young and Noh, Jinkyung and Gan, Quan and Edwards, Julian P. and Tuba, Róbert and Choi, Tae-Lim and Grubbs, Robert H.},
	doi = {10.1038/s41557-022-01034-8},
	journal-iso = {NAT CHEM},
	journal = {NATURE CHEMISTRY},
	volume = {14},
	unique-id = {33262683},
	issn = {1755-4330},
	year = {2022},
	eissn = {1755-4349},
	pages = {1242-1248},
	orcid-numbers = {Yoon, Ki-Young/0000-0003-3257-6103; Noh, Jinkyung/0000-0002-9290-2321; Gan, Quan/0000-0001-5908-4163; Choi, Tae-Lim/0000-0001-9521-6450}
}

@article{MTMT:33062564,
	title = {Hydrolytic dehydrogenation of ammonia borane in neat water using recyclable zeolite-supported cyclic alkyl amino carbene (CAAC)–Ru catalysts},
	url = {https://m2.mtmt.hu/api/publication/33062564},
	author = {Balla, Áron and Nagyházi, Márton and Turczel, Gábor and Solt, Hanna Erzsébet and Rosenbergerné Mihályi, Magdolna and Hancsók, Jenő and Valyon, József and Nagy, Tibor and Kéki, Sándor and Anastas, Paul T. and Tuba, Róbert},
	doi = {10.1039/D2NJ03334H},
	journal-iso = {NEW J CHEM},
	journal = {NEW JOURNAL OF CHEMISTRY},
	volume = {46},
	unique-id = {33062564},
	issn = {1144-0546},
	abstract = {Highly effective ammonia borane dehydrogenation was carried out using a heterogenized ruthenium-CAAC complex in water.},
	year = {2022},
	eissn = {1369-9261},
	pages = {16309-16316},
	orcid-numbers = {Hancsók, Jenő/0000-0003-1959-7604; Valyon, József/0000-0002-3608-060X; Nagy, Tibor/0000-0001-8568-914X}
}

@article{MTMT:33014942,
	title = {Synthesis and catalytic olefin metathesis activity of amberlyst-15 supported cyclic and bicyclic alkyl amino carbene ruthenium complexes},
	url = {https://m2.mtmt.hu/api/publication/33014942},
	author = {Deme, János and Nagyházi, Márton and May, Zoltán and Hancsók, Jenő and Valyon, József and Kéki, Sándor and Tuba, Róbert and Turczel, Gábor},
	doi = {10.1007/s11144-022-02261-3},
	journal-iso = {REACT KINET MECH CATAL},
	journal = {REACTION KINETICS MECHANISMS AND CATALYSIS},
	volume = {135},
	unique-id = {33014942},
	issn = {1878-5190},
	abstract = {Amberlyst-15 supported cyclic alkyl amino carbene and bicyclic alkyl amino carbene ruthenium olefin metathesis catalysts for sustainable catalytic applications have been synthesized by the well-known wet impregnation method utilizing ionic complex/support interaction. Surface coverages are as high as 4 and 7 wt% were achieved in the case of the significantly higher pore volume Amberlyst-15, compared to Amberlyst-36. These phase separable catalysts show high activity in cross metathesis, ring closing metathesis and ethenolysis reactions compared to the reported heterogenized olefin metathesis catalysts. Leeching tests revealed no more than 1.5 ppm ruthenium content for the investigated metathesis reactions, which is well below the accepted 10 ppm limit in case of consumer products. © 2022, The Author(s).},
	year = {2022},
	eissn = {1878-5204},
	pages = {2519-2531},
	orcid-numbers = {Hancsók, Jenő/0000-0003-1959-7604; Valyon, József/0000-0002-3608-060X}
}

@article{MTMT:32853951,
	title = {Catalytic Decomposition of Long-Chain Olefins to Propylene via Isomerization-Metathesis Using Latent Bicyclic (Alkyl)(Amino)Carbene-Ruthenium Olefin Metathesis Catalysts},
	url = {https://m2.mtmt.hu/api/publication/32853951},
	author = {Nagyházi, Márton and Lukacs, Adam and Turczel, Gábor and Hancsók, Jenő and Valyon, József and Bényei, Attila Csaba and Kéki, Sándor and Tuba, Róbert},
	doi = {10.1002/anie.202204413},
	journal-iso = {ANGEW CHEM INT EDIT},
	journal = {ANGEWANDTE CHEMIE-INTERNATIONAL EDITION},
	volume = {61},
	unique-id = {32853951},
	issn = {1433-7851},
	abstract = {One of the most exciting scientific challenges today is the catalytic degradation of non-biodegradable polymers into value-added chemical feedstocks. The mild pyrolysis of polyolefins, including high-density polyethylene (HDPE), results in pyrolysis oils containing long-chain olefins as major products. In this paper, novel bicyclic (alkyl)(amino)carbene ruthenium (BICAAC-Ru) temperature-activated latent olefin metathesis catalysts, which can be used for catalytic decomposition of long-chain olefins to propylene are reported. These thermally stable catalysts show significantly higher selectivity to propylene at a reaction temperature of 75 degrees C compared to second generation Hoveyda-Grubbs or CAAC-Ru catalysts under ethenolysis conditions. The conversion of long-chain olefins (e.g., 1-octadecene or methyl oleate) to propylene via isomerization-metathesis is performed by using a (RuHCl)(CO)(PPh3)(3) isomerization co-catalyst. The reactions can be carried out at a BICAAC-Ru catalyst loading as low as 1 ppm at elevated reaction temperature (75 degrees C). The observed turnover number and turnover frequency are as high as 55 000 and 10 000 mol(propylene) mol(catalyst)(-1) h(-1), respectively.},
	keywords = {MECHANISM; ETHYLENE; Propylene; cracking; metathesis; propene; STABLE CARBENES; BEARING; RUTHENIUM COMPLEXES; 1-Butene; BICAAC; Hydrocarbon Decomposition; ISOMET},
	year = {2022},
	eissn = {1521-3773},
	orcid-numbers = {Hancsók, Jenő/0000-0003-1959-7604; Valyon, József/0000-0002-3608-060X}
}