The reducibility of highly stable Ni-containing species in catalysts derived from hydrotalcite-type precursors

Pettiti Ida; Gazzoli Delia; Benito Patricia; Fornasari Giuseppe; Vaccari Angelo

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The reducibility of highly stable Ni-containing species in catalysts derived from hydrotalcite-type precursors

机译：水滑石型前体衍生的催化剂中高度稳定的含镍物种的还原性

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A study was conducted on the speciation and reducibility of Ni in catalysts derived from hydrotalcite-type (HT) precursors intercalated by silicates. Silicate and nickel contents in Ni/Mg/Al HT precursors varied and the products obtained by thermal decomposition in the 773-1373 K range were characterized. Sample properties were related to the amount of silicates and nickel. The former altered the formation of the spinel-type phase and decreased the ratio between MgO and MgAl2O4 phases in which the active species were stabilized. On the other hand, the Ni distribution depended on the Ni-loading. Ni-containing species in the spinel phase were more abundant for high Ni-loaded catalysts, and were readily reduced by H-2 treatment at 1023 K, whereas those in the Ni1-xMgxO solid solution remained partially unreduced.

机译：进行了关于镍在由硅酸盐插入的水滑石型（HT）前体衍生的催化剂中的形态和还原性的研究。 Ni / Mg / Al HT前驱体中的硅酸盐和镍含量变化，并表征了在773-1373 K范围内通过热分解获得的产物。样品性能与硅酸盐和镍的含量有关。前者改变了尖晶石型相的形成，并降低了其中活性物质稳定的MgO和MgAl2O4相之间的比率。另一方面，Ni的分布取决于Ni的负载量。尖晶石相中的含Ni物种对于高Ni负载的催化剂而言更为丰富，并且在1023 K下通过H-2处理很容易被还原，而Ni1-xMgxO固溶体中的Ni仍然部分还原。

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《RSC Advances》 |2015年第100期|共10页
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Pettiti Ida; Gazzoli Delia; Benito Patricia; Fornasari Giuseppe; Vaccari Angelo;
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中图分类化学;
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1. The reducibility of highly stable Ni-containing species in catalysts derived from hydrotalcite-type precursors [J] . Pettiti Ida, Gazzoli Delia, Benito Patricia, RSC Advances . 2015,第100期

机译：水滑石型前体衍生的催化剂中高度稳定的含镍物种的还原性
2. CO Hydrogenation to Higher Alcohols over Cu-Co-Based Catalysts Derived from Hydrotalcite-Type Precursors [J] . Anton Johan, Nebel Janine, Goebel Christoph, Topics in Catalysis . 2016,第15a16期

机译：水滑石型前驱体衍生的Cu-Co基催化剂上的CO加氢制高级醇
3. Cobalt catalysts derived from hydrotalcite-type precursors applied to steam reforming of ethanol [J] . A.F. Lucredio, J.A. Bellido, E.M. Assaf Catalysis Communications . 2011,第14期

机译：衍生自水滑石型前驱体的钴催化剂，用于乙醇的蒸汽重整
4. Synthesis gas production by steam reforming of ethanol over M-Ni-Al hydrotalcite-type catalysts; M = Mg, Zn, Mo, Co [C] . G. de Souza, V. C. Avila, N. R. Marcilio International Congress of Chemical and Process Engineering . 2013

机译：通过乙醇在M-Ni-Al水滑石型催化剂上通过蒸汽重整产生合成气体; m = mg，zn，mo，co
5. Design and synthesis of heterogeneous catalysts and catalyst supports derived from thermolytic molecular precursors. [D] . Brutchey, Richard Leo. 2005

机译：设计和合成衍生自热解分子前体的非均相催化剂和催化剂载体。
6. Hoveyda–Grubbs catalysts with an N→Ru coordinate bond in a six-membered ring. Synthesis of stable industrially scalable highly efficient ruthenium metathesis catalysts and 2-vinylbenzylamine ligands as their precursors [O] . Kirill B Polyanskii, Kseniia A Alekseeva, Pavel V Raspertov, 2019

机译：Hoveyda–Grubbs催化剂在六元环中具有N→Ru配位键。稳定工业规模可扩展的高效钌复分解催化剂和2-乙烯基苄胺配体的合成
7. The reducibility of highly stable Ni-containing species in catalysts derived from hydrotalcite-type precursors [O] . Ida Pettiti, Delia Gazzoli, Patricia Benito, 2015

机译：衍生自水滑石型前体的催化剂中高度稳定的Ni物种的再还原性
8. New Air and Water Stable Palladium(II) Catalysts for 1,2-vinyl InsertionPolymerizations and a Simple Precursor Route to Polyacetylene. (Reannouncement with New Availability Information) [R] . Safir, A. L., Novak, B. M. 1993

机译：新的空气和水稳定的钯（II）催化剂用于1,2-乙烯基插入聚合和简单的前体聚合乙炔路线。（重新公布新的可用性信息）

The reducibility of highly stable Ni-containing species in catalysts derived from hydrotalcite-type precursors

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