Performance of Pd-Ag/Al2O3 catalysts prepared by the selective deposition of Ag onto Pd in acetylene hydrogenation

Ji Hoon Lee; Seok Ki Kim; In Young Ahn

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Performance of Pd-Ag/Al2O3 catalysts prepared by the selective deposition of Ag onto Pd in acetylene hydrogenation

机译：通过在乙炔加氢中将Ag选择性沉积到Pd上而制备的Pd-Ag / Al2O3催化剂的性能

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The performance of Ag-promoted Pd/Al2O3 catalysts, which were prepared by the selective deposition of Ag onto Pd using a surface redox (SR) method, during acetylene hydrogenation was compared with that of catalysts prepared by impregnation. The Pd surface was more effectively modified with Ag added by SR, even when small amounts of Ag were added. The catalyst prepared by SR showed a higher ethylene selectivity than the one prepared by impregnation, because SR allowed both the preferential deposition of Ag on the low-coordination sites of Pd and a greater electronic modification of Pd by Ag.

机译：比较了乙炔加氢过程中通过表面氧化还原（SR）方法将Ag选择性沉积到Pd上而制备的Ag促进的Pd / Al2O3催化剂的性能。即使添加少量的Ag，也可以通过SR添加的Ag更有效地修饰Pd表面。 SR制备的催化剂显示出比浸渍法更高的乙烯选择性，因为SR既允许Ag在Pd的低配位位上优先沉积，又可以使Ag对Pd进行更大的电子修饰。

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《Catalysis Communications》 |2011年第13期|共4页
作者
Ji Hoon Lee; Seok Ki Kim; In Young Ahn;
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正文语种 eng
中图分类物理化学（理论化学）、化学物理学;
关键词
Acetylene hydrogenation; Pd; Ag; Surface redox method; Ethylene selectivity;

机译：乙炔加氢;钯;银;表面氧化还原法;乙烯选择性;

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1. Performance of Pd-Ag/Al2O3 catalysts prepared by the selective deposition of Ag onto Pd in acetylene hydrogenation [J] . Ji Hoon Lee, Seok Ki Kim, In Young Ahn Catalysis Communications . 2011,第13期

机译：通过在乙炔加氢中将Ag选择性沉积到Pd上而制备的Pd-Ag / Al2O3催化剂的性能
2. The influence of alumina phases on the performance of the Pd-Ag/Al2O3 catalyst in tail-end selective hydrogenation of acetylene [J] . Komeili Samane, Ravanchi Maryam Takht, Taeb Abbas Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications . 2015,第Null期

机译：氧化铝相对Pd-Ag / Al2O3催化剂乙炔尾部选择性加氢性能的影响
3. The influence of alumina phases on the performance of Pd-Ag/Al2O3 catalyst in tail-end selective hydrogenation of acetylene (vol 502, pg 287, 2015) [J] . Komeili Samane, Ravanchi Maryam Takht, Taeb Abbas Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications . 2015,第Null期

机译：氧化铝相对乙炔尾部选择性加氢中Pd-Ag / Al2O3催化剂性能的影响（vol 502，pg 287，2015）
4. Pd-Ag/SiO2 bimetallic catalysts prepared by galvanic displacement for selective hydrogenation of acetylene in excess ethylene [C] . Yunya Zhang, Weijian Diao, Christopher T. Williams AIChE Annual Meeting . 2015

机译：通过电磁位移制备的Pd-Ag / SiO2双金属催化剂，用于在过量乙烯中选择性氢化乙炔
5. Supported group IB-Pd bimetallic catalysts prepared by electroless deposition and galvanic displacement for selective hydrogenation of acetylene. [D] . Zhang, Yunya. 2015

机译：负载型IB-Pd双金属催化剂，通过化学沉积和电流置换制备，用于乙炔的选择性加氢。
6. BNPd single-atom catalysts for selective hydrogenation of acetylene to ethylene: a density functional theory study [O] . Wanqi Gong, Lihua Kang 2018

机译：用于乙炔选择性加氢成乙烯的BNPd单原子催化剂：密度泛函理论研究
7. An Experimental Approach on Industrial Pd-Ag Supported α-Al2O3 Catalyst Used in Acetylene Hydrogenation Process: Mechanism, Kinetic and Catalyst Decay [O] . Ourmazd Dehghani, Mohammad Rahimpour, Alireza Shariati 2019

机译：乙炔氢化工艺中使用的工业PD-AG支持α-Al2O3催化剂的实验方法：机理，动力学和催化剂腐烂

Performance of Pd-Ag/Al2O3 catalysts prepared by the selective deposition of Ag onto Pd in acetylene hydrogenation

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