PVP-stabilized mono- and bimetallic Ru nanoparticles for selective ring opening

Jing Shen; Xing Yin; Dimitre Karpuzov

首页> 外文期刊>Catalysis science & technology >PVP-stabilized mono- and bimetallic Ru nanoparticles for selective ring opening

【24h】

PVP-stabilized mono- and bimetallic Ru nanoparticles for selective ring opening

机译：PVP稳定的单金属和双金属RU纳米颗粒，用于选择性环开口

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Selective ring opening of naphthenic molecules in oil upgrading should result in no loss in molecular weight. Benzocyclopentane (indan) ring opening was studied under hydrogen atmospheric pressure at 609 K over poly-(vinylpyrrolidone)-stabilized Ru, Ir and Pd monometallic and Ru-lr and Ru-Pd bimetallic nanocatalysts prepared by simultaneous reductions. The particle size (mostly within 2 nm) and their monodispersity were confirmed by transmission electron microscopy, while X-ray photoelectron spectroscopy indicated the bimetallics' alloy structure. Pd catalysts displayed the lowest activity in the ring opening; Ru showed the highest formation of undesired o-xylene and lights. Monometallic Ir displayed the highest activity and selectivity toward 2-ethyltoluene and n-propylbenzene. In bimetallic structures, higher Ir content led to improved catalytic performance. Next to the monometallic Ir catalyst, the newly developed Ru1lr4/γ-Al2O3 catalyst (with 1 :4 molar ratio of Ru to Ir) displayed superior single cleavage selectivity as well as lower cracking activity compared to industrial Pt-lr catalysts at a comparable indan conversion. The study can pave the way in the development of Pt-free Ru-containing catalysts with narrow size distributions for selective ring opening, especially taking into consideration a possibility of their higher S-resistance as compared to the Pt catalysts.

机译：在油升级中开放型开环的选择性环开口应不会导致分子量损失。通过同时减少，通过同时减少，在聚 - （乙烯基吡咯烷酮）的氢气压力下，在609 K（乙烯基吡咯烷酮）的氢气压力下，在609 K（乙烯基吡咯烷酮）的氢气压力下研究了苯佐糖环烷（INDAN）环。通过透射电子显微镜证实了粒径（主要是在2 nm之内）及其单分散性，而X射线光电子光谱法表示双金属的合金结构。 PD催化剂在环开口中表现出最低的活性。 RU显示出不希望的O-二甲苯和灯的最高形成。单金属IR表现出对2-乙基甲苯和N-丙烯苯的最高活性和选择性。在双金属结构中，较高的IR含量会改善催化性能。在单一金属IR催化剂旁边，新开发的RU1LR4/γ-Al2O3催化剂（RU与IR的1：4摩尔比）显示出优异的单裂解选择性以及与可比较的IndAN的工业PT-LR催化剂相比，较低的开裂活性转换。这项研究可以为具有较窄的尺寸分布的含无PT RU的催化剂的发展铺平道路，以选择性环开口，尤其是考虑到与PT催化剂相比，其可能具有更高的S耐性。

著录项

来源
《Catalysis science & technology》 |2013年第1期|208-221|共14页
作者
Jing Shen; Xing Yin; Dimitre Karpuzov;
展开▼
作者单位

Department of Chemical and Materials Engineering, University of Alberta, 9107-116 Str. Edmonton, Alberta T60 2V4, Canada.;

Alberta Center for Surface Engineering and Science, University of Alberta, Edmonton T6G 2V4, Canada;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类汉语教学;
关键词
MONODISPERSE; MOLAR RATIO; size distributionAtmospheric PressureIndansCatalystsRING OPENINGRutheniumPropylbenzene;

机译：摩尔比;尺寸分布量分布量大分线塞催化剂;开放式丙烯苯甲烯;

相似文献

外文文献
中文文献

1. Bimetallic Ru-Ni/TiO2 catalysts for hydrogenation of N-ethylcarbazole:Role of TiO2 crystal structure [J] . Hongen Yu, Xue Yang, Yong Wu, 天然气化学（英文版） . 2020,第1期
2. Trimerisation of the Cationic Fragments [(#eta#-ring)M(Aa)]~+((#eta#-ring) M = (#eta#~5-C_5Me_5)Rh, (#eta#~5-C_5Me_5)Ir, (#eta#~6-p-MeC_6H_4iPr)Ru; Aa = #alpha#-amino acidate) with Chiral Self-Recognition: Synthesis, Characterisation, Solution Studie [J] . Daniel Carmona, Fernando J. Lahoz, Reinaldo Atencio, Chemistry: A European journal . 1999,第5期

机译：阳离子片段[（＃eta＃-ring）M（Aa）]〜+（（＃eta＃-ring）M =（＃eta＃〜5-C_5Me_5）Rh，（＃eta＃〜5-C_5Me_5）具有手性自我识别的Ir（（＃eta＃〜6-p-MeC_6H_4iPr）Ru; Aa =＃alpha＃-氨基酸）：合成，表征，溶液研究
3. Ru-nanoparticle deposition on naturally available clay and rice husk biomass materials-Benzene hydrogenation catalysis and synthetic strategies for green catalyst development [J] . Omar Bin Shawkataly, R. Jothiramalingam, F. Adam Catalysis science & technology . 2012,第3期

机译：Ru-Nanoparticle对天然可用的粘土和稻壳生物量材料的沉积 - 苯并氢化催化和绿色催化剂开发的合成策略
4. Synthesis of renewable hydrocarbons from vegetable oil feedstock by hydrotreatment over selective sulfur-free SiO_2-Al_2O_3 supported monometallic Pd, Pt, Ru, Ni, Mo and bimetallic NiMo catalysts [J] . Malins Kristaps Fuel . 2021,第2期

机译：从选择性硫的SiO_2-Al_2O_3支持的单金属Pd，Pt，Ru，Ni，Mo和Bimetallic Nimo催化剂中加氢处理从植物油原料中可再生烃的可再生碳氢化合物
5. Bimetallic Ni–Ru and Ni–Re Catalysts for Dry Reforming of Methane: Understanding the Synergies of the Selected Promoters [O] . Andrea Álvarez Moreno, Tomás Ramirez-Reina, Svetlana Ivanova, 2021

机译：Bimetallic Ni-Ru和Ni-Re甲烷干重整催化剂：了解所选启动子的协同作用
6. Selective hydrogenation of cyclopentadiene in mono- and bimetallic catalytic hollow-fiber reactors [O] . Liu CQ, Xu Y, Liao SJ, 2000

机译：selective hydrogenation of cyclopentadiene in mono- and bimetallic catalytic hollow-fiber reactors

PVP-stabilized mono- and bimetallic Ru nanoparticles for selective ring opening

摘要

著录项

相似文献

相关主题

期刊订阅