Heteroatom modified polymer immobilized ionic liquid stabilized ruthenium nanoparticles: Efficient catalysts for the hydrolytic evolution of hydrogen from sodium borohydride

Paterson, Reece; Alharbi, Adhwa A.; Wills, Corinne; Dixon, Casey; Šiller, Lidja; Chamberlain, Thomas W.; Griffiths, Ann; Collins, Sean M.; Wu, Ke‐Jun; Simmons, M. Y.; Bourne, Richard A.; Lovelock, Kevin R. J.; Seymour, Jake M.; Knight, Julian G.; Doherty, Simon

doi:10.1016/j.mcat.2022.112476

Cited by 9 publications

(3 citation statements)

References 162 publications

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“…The results on KIE for catalysts containing metal active components have mostly been investigated in processes ( 1) and (2). They have shown that for the hydrolysis of both SBH and AB, a primary isotopic effect (kH/kD > 2) is observed when the reaction takes place in deuterated water, and a secondary KIE is noted with isotope-labeled hydrides [43,46,47]. Our tests of the Co 0 catalyst in heavy water are shown in Figure 2a.…”

Section: Activity Of Co Metal Catalyst In the Hydrolysis Of Nabh4 Nh3...mentioning

confidence: 80%

Co and Co3O4 in the Hydrolysis of Boron-Containing Hydrides: H2O Activation on the Metal and Oxide Active Centers

Butenko,

Komova,

Simagina

et al. 2024

Materials

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This work focuses on the comparison of H2 evolution in the hydrolysis of boron-containing hydrides (NaBH4, NH3BH3, and (CH2NH2BH3)2) over the Co metal catalyst and the Co3O4-based catalysts. The Co3O4 catalysts were activated in the reaction medium, and a small amount of CuO was added to activate Co3O4 under the action of weaker reducers (NH3BH3, (CH2NH2BH3)2). The high activity of Co3O4 has been previously associated with its reduced states (nanosized CoBn). The performed DFT modeling shows that activating water on the metal-like surface requires overcoming a higher energy barrier compared to hydride activation. The novelty of this study lies in its focus on understanding the impact of the remaining cobalt oxide phase. The XRD, TPR H2, TEM, Raman, and ATR FTIR confirm the formation of oxygen vacancies in the Co3O4 structure in the reaction medium, which increases the amount of adsorbed water. The kinetic isotopic effect measurements in D2O, as well as DFT modeling, reveal differences in water activation between Co and Co3O4-based catalysts. It can be assumed that the oxide phase serves not only as a precursor and support for the reduced nanosized cobalt active component but also as a key catalyst component that improves water activation.

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Section: Activity Of Co Metal Catalyst In the Hydrolysis Of Nabh4 Nh3...mentioning

confidence: 80%

Co and Co3O4 in the Hydrolysis of Boron-Containing Hydrides: H2O Activation on the Metal and Oxide Active Centers

Butenko,

Komova,

Simagina

et al. 2024

Materials

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“…108 As the continuation of this work, the same group later further investigated hydrogen evolution from sodium borohydride catalyzed by polymer-supported other ionic liquid-stabilized noble metal catalysts, such as ruthenium nanoparticles, and platinum nanoparticles. 109,110 Simon et al systematically investigated the structure, electronic and catalytic properties of PIL-supported Pd nanoparticles. They revealed that the poly(ionic liquid)-supported Pd nanoparticels can be regarded as catalytic membrane-like devices for selective hydrogenation of α,β-unsaturated carbonyl compounds and dienes.…”

Section: Applicationmentioning

confidence: 99%

“…109,110 Simon et al systematically investigated the structure, electronic and catalytic properties of PIL-supported Pd nanoparticles. They revealed that the poly(ionic liquid)-supported Pd nanoparticels can be regarded as catalytic membrane-like devices for selective hydrogenation of α,β-unsaturated carbonyl compounds and dienes 111.…”

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confidence: 99%

Poly(ionic liquid)s: an emerging platform for green chemistry

Zhu,

Yang

2024

Green Chem.

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Amino‐Modified Polymer Immobilized Ionic Liquid Stabilized Ruthenium Nanoparticles: Efficient and Selective Catalysts for the Partial and Complete Reduction of Quinolines

et al. 2023

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RuNPs stabilised by amino‐decorated imidazolium‐based polymer immobilized ionic liquids catalyse the dimethylamine borane mediated reduction of quinolines to 1,2‐dihydroquinoline (DHQ) and 1,2,3,4‐tetrahydroquinoline (THQ). Partial reduction of 3‐substituted quinolines to the corresponding 1,2‐dihydroquinoline was achieved with 100 % selectivity in toluene under mild conditions. This is the first report of the selective partial reduction of 3‐substituted quinolines to the corresponding 1,2‐dihydroquinolines with a heterogeneous nanoparticle‐based catalyst. A wide range of substituted quinolines have also been reduced to the corresponding 1,2,3,4‐tetrahydroquinoline with high selectivity and good yields by adjusting the reaction time. The 1,2‐dihydroquinolines readily release dihydrogen in toluene at 60 °C in the absence of catalyst with no evidence for disproportionation and as such are potential organo‐hydride reagents. The initial TOF of 610 mol quinoline converted mol Ru−1 h−1 for the reduction of quinoline is among the highest to be reported for a metal nanoparticle‐based catalyst and the conversion of 96 % obtained after 4 h at 65 °C is significantly higher than its platinum nanoparticle counterpart PtNP@NH2‐PEGPIILS as well as 5 wt/% Ru/C, which only reached 9 % and 11 % conversion, respectively, at the same time. Hot filtration experiments showed that the active species was heterogeneous.

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Heteroatom modified polymer immobilized ionic liquid stabilized ruthenium nanoparticles: Efficient catalysts for the hydrolytic evolution of hydrogen from sodium borohydride

Cited by 9 publications

References 162 publications

Co and Co3O4 in the Hydrolysis of Boron-Containing Hydrides: H2O Activation on the Metal and Oxide Active Centers

Co and Co3O4 in the Hydrolysis of Boron-Containing Hydrides: H2O Activation on the Metal and Oxide Active Centers

Poly(ionic liquid)s: an emerging platform for green chemistry

Amino‐Modified Polymer Immobilized Ionic Liquid Stabilized Ruthenium Nanoparticles: Efficient and Selective Catalysts for the Partial and Complete Reduction of Quinolines

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