Does the structure of CuZn hydroxycarbonate precursors affect the intrinsic hydrogenolysis activity of CuZn catalysts?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F20%3A43920344" target="_blank" >RIV/60461373:22320/20:43920344 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22350/20:43920344 RIV/61989100:27710/20:10245010

Result on the web

<a href="https://doi.org/10.1039/d0cy00143k" target="_blank" >https://doi.org/10.1039/d0cy00143k</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d0cy00143k" target="_blank" >10.1039/d0cy00143k</a>

Result language

angličtina

Original language name

Does the structure of CuZn hydroxycarbonate precursors affect the intrinsic hydrogenolysis activity of CuZn catalysts?

Original language description

A comparative study of the properties and hydrogenolysis activity of catalysts derived from single-phase CuZn precursors was carried out to elucidate the effect of the precursor structure on the catalyst activity in hydrogenolysis and to examine their potential to replace the classical CuCr catalysts. Three CuZn catalysts were prepared by co-precipitation aiming at Cu/Zn ratios of 0.7, 5.0 and 1.6 to obtain single-phase aurichalcite, zincian malachite and a mixture of both phases, respectively. The catalyst precursors were calcined at temperatures of 300 and 450 °C, reducedin situand tested in dimethyl adipate hydrogenolysis. The properties of the precursors and catalysts were analyzed usingin situXRD, TGA-MS, TPR-H2, nitrogen physisorption and N2O chemisorption methods. According to the characterization data, aurichalcite-derived catalysts had superior structural properties to zincian malachite-derived catalysts: smaller copper crystallites, larger total and copper surface areas, and stable surface areas during the experiment. Consequently, aurichalcite-derived catalysts outperformed catalysts prepared from zincian malachite in the studied range of phase and elemental CuZn compositions. Nonetheless, the calculated intrinsic hydrogenolysis activity of surface Cu sites (TOF) was similar for all three catalysts. © The Royal Society of Chemistry 2020.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Catalysis Science and Technology

ISSN

2044-4753

e-ISSN

—

Volume of the periodical

10

Issue of the periodical within the volume

10

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

3303-3314

UT code for WoS article

000538156300013

EID of the result in the Scopus database

2-s2.0-85085933541