当前位置：
X-MOL 学术
›
ChemCatChem
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
The Influence of Size and Shape of Pd Nanoparticles on the Performances of Pd/Beta Catalysts for n‐Heptane Hydroisomerization
ChemCatChem ( IF 3.8 ) Pub Date : 2019-07-04 , DOI: 10.1002/cctc.201900740 Huimin Chen 1, 2 , Suyao Liu 3 , Junqing Yin 1, 2 , Xiang Gao 1, 2 , Zhichao Tao 3 , Baoshan Wu 1, 3 , Hongwei Xiang 1, 3 , Yong Yang 1, 3 , Yongwang Li 1, 3
ChemCatChem ( IF 3.8 ) Pub Date : 2019-07-04 , DOI: 10.1002/cctc.201900740 Huimin Chen 1, 2 , Suyao Liu 3 , Junqing Yin 1, 2 , Xiang Gao 1, 2 , Zhichao Tao 3 , Baoshan Wu 1, 3 , Hongwei Xiang 1, 3 , Yong Yang 1, 3 , Yongwang Li 1, 3
Affiliation
|
Several Pd/Beta catalysts with cubic (9 nm, 12 nm, 16 nm) and truncated‐octahedral (18 nm) Pd nanoparticles (NPs) were prepared to investigate the effect of size and shape of Pd NPs for n‐heptane hydroisomerization. Characterizations confirmed that the cubic Pd NPs solely exposed {100} crystal plane and truncated‐octahedral Pd NPs were enclosed by {100} and {111} crystal planes, and that the desorption temperature of subsurface hydrogen on Pd NPs showed size and shape dependence. Hydroisomerization results exhibits that the catalyst with 9 nm cubic Pd NPs displayed the higher isomers selectivity compared to the catalyst with 12 nm cubic NPs, 18 nm truncated octahedral NPs and 16 nm cubic NPs at similar conversion. This result suggested the size and shape dependence of (de)hydrogenation activity of Pd NPs, and further revealed the key role of subsurface hydrogen in determining the (de)hydrogenation activity.
中文翻译：
Pd纳米粒子的尺寸和形状对Pd /β催化剂正庚烷加氢异构化性能的影响
制备了几种具有立方（9 nm，12 nm，16 nm）和截短八面体（18 nm）Pd纳米颗粒（NP）的Pd / Beta催化剂，以研究Pd NP的尺寸和形状对n-的影响庚烷加氢异构化。表征证实，{100}和{111}晶面分别包围{100}晶面和截顶八面体Pd NP所暴露的立方Pd NPs，并且Pd NPs上地下氢的解吸温度显示出尺寸和形状依赖性。加氢异构化结果表明，与具有12 nm立方NP，18 nm截短的八面体NP和16 nm立方NP的催化剂相比，具有9 nm立方钯NP的催化剂显示出更高的异构体选择性。该结果表明Pd NPs的（脱）氢活性的大小和形状依赖性，并进一步揭示了地下氢在确定（脱）氢活性中的关键作用。
更新日期：2019-07-04
中文翻译：
Pd纳米粒子的尺寸和形状对Pd /β催化剂正庚烷加氢异构化性能的影响
制备了几种具有立方（9 nm，12 nm，16 nm）和截短八面体（18 nm）Pd纳米颗粒（NP）的Pd / Beta催化剂，以研究Pd NP的尺寸和形状对n-的影响庚烷加氢异构化。表征证实，{100}和{111}晶面分别包围{100}晶面和截顶八面体Pd NP所暴露的立方Pd NPs，并且Pd NPs上地下氢的解吸温度显示出尺寸和形状依赖性。加氢异构化结果表明，与具有12 nm立方NP，18 nm截短的八面体NP和16 nm立方NP的催化剂相比，具有9 nm立方钯NP的催化剂显示出更高的异构体选择性。该结果表明Pd NPs的（脱）氢活性的大小和形状依赖性，并进一步揭示了地下氢在确定（脱）氢活性中的关键作用。
京公网安备 11010802027423号