Influence of the Procedure for Preparing Ruthenium Nanoparticles on the Internal Surface of Aluminosilicate Nanotubes on Their Catalytic Properties in Benzene Hydrogenation in the Presence of Water

Mazurova, Kristina; Nedolivko, V. V.; Boev, S. S.; Brindukova, E. E.; Винокуров, В. А.; Glotov, Aleksandr; Stavitskaya, Anna

doi:10.1134/s0965544121040046

Cited by 3 publications

(2 citation statements)

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“…At the second stage, a cobalt oxide was added by incipient wetness impregnation. Previously, it was shown that reduction of Ru salt inside clay tubes with NaBH 4 or in a flow of H 2 resulted in Ru nanoparticles with different particles size distribution [ 36 ]. The reduction with hydrogen gave nanoclusters with size of 1–2 nm, when NaBH 4 reduction led to formation of larger particles with size of 3–4 nm.…”

Section: Resultsmentioning

confidence: 99%

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Natural aluminosilicate nanotubes loaded with RuCo as nanoreactors for Fischer-Tropsch synthesis

Mazurova

Glotov

Котелев

et al. 2022

Science and Technology of Advanced Materials

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Following nanoarchitectural approach, mesoporous halloysite nanotubes with internal surface composed of alumina were loaded with 5–6 nm RuCo nanoparticles by sequential loading/reduction procedure. Ruthenium nanoclusters were loaded inside clay tube by microwave-assisted method followed by cobalt ions electrostatic attraction to ruthenium during wetness impregnation step. Developed nanoreactors with bimetallic RuCo nanoparticles were investigated as catalysts for the Fischer-Tropsch process. The catalyst with 14.3 wt.% of Co and 0.15 wt.% of Ru showed high activity (СO conversion reached 24.6%), low selectivity to methane (11.9%), CO 2 (0.3%), selectivity to C 5+ hydrocarbons of 79.1% and chain growth index (α) = 0.853. Proposed nanoreactors showed better selectivity to target products combined with high activity in comparison to the similar bimetallic systems supported on synthetic porous materials. It was shown that reducing agent (NaBH 4 or H 2 ) used to obtain Ru nanoclusters at first synthesis step played a very important role in the reducibility and selectivity of resulting RuCo catalysts.

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Section: Resultsmentioning

confidence: 99%

“…Another reason for the higher yield of liquid hydrocarbons can be explained by the distribution of Ru atoms in bimetallic catalyst [ 65 ]. The reduction of Ru salt with different reducing agents led to the formation of Ru cluster with different size [ 36 ]. In case of Ru@HNT-2, larger nanoclusters were formed ( Figure 1(c,d )).…”

Section: Resultsmentioning

confidence: 99%