Nano-architecture of silica nanoparticles as a tool to tune both electrochemical and catalytic behavior of Ni-II@SiO2

Khrizanforov Mikhail N.; Fedorenko Svetlana V; Mustafina Asia R.; Khrizanforova Vera V.; Kholin Kirill V; Nizameev Irek R.; Gryaznova Tatyana V; Grinenko Valeriya V.; Budnikova Yulia H.

首页> 外文期刊>RSC Advances >Nano-architecture of silica nanoparticles as a tool to tune both electrochemical and catalytic behavior of Ni-II@SiO2

【24h】

Nano-architecture of silica nanoparticles as a tool to tune both electrochemical and catalytic behavior of Ni-II@SiO2

机译：二氧化硅纳米粒子的纳米结构作为调整Ni-II @ SiO2电化学和催化行为的工具

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

The present work introduces a facile synthetic route for efficient doping of [Ni-II(bpy)(x)] into silica nanoparticles with various sizes and architectures. Variation of the latter results in different concentrations of the Ni-II complexes at the interface of the composite nanoparticles. The UV-Vis analysis of the nanoparticles reveals changes in the inner-sphere environment of the Ni-II complexes when embedded into the nanoparticles, while the inner-sphere of Ni-II is invariant for the nanoparticles with different architecture. Comparative analysis of the electrochemically generated redox transformations of the Ni-II complexes embedded in the nanoparticles of various architectures reveals the latter as the main factor controlling the accessibility of Ni-II complexes to the redox transitions which, in turn, controls the electrochemical behavior of the nanoparticles. The work also highlights an impact of the nanoparticulate architecture in catalytic activity of the Ni-II complexes within the different nanoparticles in oxidative C-H fluoroalkylation of caffeine. Both low leakage and high concentration of the Ni-II complexes at the interface of the composite nanoparticles enables fluoroalkylated caffeine to be obtained in high yields under recycling of the nanocatalyst five times at least.

机译：本作者介绍了一种容易合成途径，用于将[Ni-II（BPY）（X）]有效掺杂到具有各种尺寸和架构的二氧化硅纳米粒子中。后者的变异导致复合纳米颗粒界面的不同浓度的Ni-II复合物。纳米颗粒的UV-VIS分析显示出在嵌入纳米颗粒中的Ni-II复合物的内球环境的变化，而Ni-II的内部球体是具有不同架构的纳米颗粒的不变。各种架构中嵌入的Ni-II复合物的电化学产生的氧化还原转化的比较分析显示，后者作为控制Ni-II复合物的可达性与氧化还原转变的主要因素，反过来控制电化学行为纳米颗粒。该作品还突出了纳米颗粒结构在咖啡因氧化C-H氟烷基化的不同纳米颗粒内的Ni-II复合物的催化活性的影响。复合纳米颗粒界面处的低渗漏和高浓度的Ni-II络合物使得氟代烷基化咖啡因至少在纳米催化剂的再循环中以高产率获得五次。

著录项

来源
《RSC Advances》 |2019年第39期|共9页
作者
Khrizanforov Mikhail N.; Fedorenko Svetlana V; Mustafina Asia R.; Khrizanforova Vera V.; Kholin Kirill V; Nizameev Irek R.; Gryaznova Tatyana V; Grinenko Valeriya V.; Budnikova Yulia H.;
展开▼
作者单位

Russian Acad Sci FRC Kazan Sci Ctr Arbuzov Inst Organ &

Phys Chem Arbuzov Str 8 Kazan 420088 Russia;

Russian Acad Sci FRC Kazan Sci Ctr Arbuzov Inst Organ &

Phys Chem Arbuzov Str 8 Kazan 420088 Russia;

Russian Acad Sci FRC Kazan Sci Ctr Arbuzov Inst Organ &

Phys Chem Arbuzov Str 8 Kazan 420088 Russia;

Russian Acad Sci FRC Kazan Sci Ctr Arbuzov Inst Organ &

Phys Chem Arbuzov Str 8 Kazan 420088 Russia;

Russian Acad Sci FRC Kazan Sci Ctr Arbuzov Inst Organ &

Phys Chem Arbuzov Str 8 Kazan 420088 Russia;

Russian Acad Sci FRC Kazan Sci Ctr Arbuzov Inst Organ &

Phys Chem Arbuzov Str 8 Kazan 420088 Russia;

Russian Acad Sci FRC Kazan Sci Ctr Arbuzov Inst Organ &

Phys Chem Arbuzov Str 8 Kazan 420088 Russia;

Russian Acad Sci FRC Kazan Sci Ctr Arbuzov Inst Organ &

Phys Chem Arbuzov Str 8 Kazan 420088 Russia;

Russian Acad Sci FRC Kazan Sci Ctr Arbuzov Inst Organ &

Phys Chem Arbuzov Str 8 Kazan 420088 Russia;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类化学;
关键词

相似文献

外文文献
中文文献
专利

1. Nano-architecture of silica nanoparticles as a tool to tune both electrochemical and catalytic behavior of Ni-II@SiO2 [J] . Khrizanforov Mikhail N., Fedorenko Svetlana V, Mustafina Asia R., RSC Advances . 2019,第39期

机译：二氧化硅纳米粒子的纳米结构作为调整Ni-II @ SiO2电化学和催化行为的工具
2. Electrochemical dealloying as a tool to tune the porosity, composition and catalytic activity of nanomaterials [J] . Rurainsky Christian, Manjon Alba Garzon, Hiege Felix, Journal of Materials Chemistry, A. Materials for energy and sustainability . 2020,第37期

机译：电化学造影作为调整纳米材料孔隙率，组成和催化活性的工具
3. Electrochemically assisted deposition by local pH tuning: a versatile tool to generate ordered mesoporous silica thin films and layered double hydroxide materials [J] . Mousty Christine, Walcarius Alain Journal of solid state electrochemistry . 2015,第7期

机译：通过局部pH调节进行电化学辅助沉积：生成有序介孔二氧化硅薄膜和层状双氢氧化物材料的多功能工具
4. Catalytic Behaviors of Silica-supported Alginic Acid-L-Amino Acid-Pt Complexes in Asymmetric Hydrogenation [C] . Lei Xue 11th International Symposium of Fine Chemistry and Functional Polymers Jul 28-31, 2001 Hailar, Inner Mongolia, P.R. China . 2001

机译：二氧化硅负载的海藻酸-L-氨基酸-Pt配合物在不对称加氢中的催化行为
5. Nanosphere lithography: I. Fabrication and characterization of large area silver nanoparticle arrays. II. Electrochemical tuning of silver nanoparticle size. III. Nanoparticle shape as a function of size for silver, gold, cobalt, palladium, and platinum nanoparticle. [D] . Ormonde, Anjeanette D. 2001

机译：纳米球光刻：I.大面积银纳米颗粒阵列的制造和表征。二。银纳米粒子尺寸的电化学调节。三，银，金，钴，钯和铂纳米粒子的纳米粒子形状随尺寸变化。
6. Tuning Functional Behavior of Humic Acids through Interactions with Stöber Silica Nanoparticles [O] . Giulio Pota, Virginia Venezia, Giuseppe Vitiello, 2020

机译：通过与Stöber二氧化硅纳米粒子的相互作用来调节腐殖酸的功能行为
7. A manganese(iii) Schiff base complex immobilized on silica-coated magnetic nanoparticles showing enhanced electrochemical catalytic performance toward sulfide and alkene oxidation [O] . Saeed Rayati, Elham Khodaei, Parinaz Nafarieh, 2020

机译：固定在二氧化硅涂覆的磁性纳米粒子上的锰（III）Schiff碱基复合物，显示出硫化物和烯烃氧化的增强的电化学催化性能

Nano-architecture of silica nanoparticles as a tool to tune both electrochemical and catalytic behavior of Ni-II@SiO2

摘要

著录项

相似文献

相关主题

期刊订阅