@article{1c573c62db3949f395d0a53d28cf99de,
title = "Nitrogen-Doped Co Catalyst Derived from Carbothermal Reduction of Cobalt Phyllosilicate and its Application in Levulinic Acid Hydrogenation to γ-Valerolactone",
abstract = "Abstract: An active and stable Co catalyst decorated by N species was developed and applied in the hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL). The catalyst was first synthesized by grafting glucose (G) and melamine (M) on cobalt phyllosilicate (CoPS) hydrothermally, and then by pyrolyzing GM/CoPS at a designated temperature for the carbothermal reduction (denoting as GM@CoPS-X; X = temperature). Among tested catalysts, GM@CoPS-700 showed the most promising GVL productivity (1684 mmol GVL/gsurface Co /h), stability, and recyclability (an ca. 8% loss of initial activity) in five consecutive trials. Doped N species were found to improve the concentration of Coδ+ (0 < δ < 2) with a strong Lewis acidity. The synergy of Coδ+ and Co0 was the key in enhancing the activity of Co-based catalysts derived from CoPS. Graphic Abstract: [Figure not available: see fulltext.]",
author = "To, {Dien Thien} and Chiang, {Yu Chia} and Lee, {Jyh Fu} and Chen, {Chi Liang} and Lin, {Yu Chuan}",
note = "Funding Information: This study was supported by the Ministry of Science and Technology (Projects 109-2628-E-006-011-MY3, 110-2221-E-006-165-MY3, 110-2923-E-006-005-MY3, and 110-2927-I-006-506) and by Higher Education Sprout Project, Ministry of Education to the Headquarters of University Advancement at National Cheng Kung University (NCKU). The authors also appreciate the use of an elemental analyzer (EA000600, MOST 110-2731-M-006-001) and an electron spectroscopy for chemical analysis (ESCA000200, MOST 110-2731-M-006-001) belonging to the Core Facility Center of National Cheng Kung University. Funding Information: This study was supported by the Ministry of Science and Technology (Projects 109-2628-E-006-011-MY3, 110-2221-E-006-165-MY3, 110-2923-E-006-005-MY3, and 110-2927-I-006-506) and by Higher Education Sprout Project, Ministry of Education to the Headquarters of University Advancement at National Cheng Kung University (NCKU). The authors also appreciate the use of an elemental analyzer (EA000600, MOST 110-2731-M-006-001) and an electron spectroscopy for chemical analysis (ESCA000200, MOST 110-2731-M-006-001) belonging to the Core Facility Center of National Cheng Kung University. Publisher Copyright: {\textcopyright} 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.",
year = "2022",
month = jul,
doi = "10.1007/s10562-021-03784-5",
language = "English",
volume = "152",
pages = "2090--2100",
journal = "Catalysis Letters",
issn = "1011-372X",
publisher = "Springer Netherlands",
number = "7",
}