Supramolecular approach to metal-support interactions: reactivity of silica-supported bis(allyl)rhodium(III) and the influence of surface hydroxyl groups

The title complexes have been obtained by functionalization of silica with cyclopentadienylsilanes of the type Rx(CH3)3 - xSi(CH2)nC5H5 (x = 1-3, n = 0, 1, 3), trimethylsilylation of free surface hydroxyl groups, transformation of the bonded cyclopentadienyl group to the cyclopentadienyl anion, followed by coordination of (h5-cyclopentadienyl)trichlorotitanium. The effects of single steps of the above immobilization on texture of the support, the number of free hydroxyl groups, the coverage of the surface by cyclopentadienyl groups and the degree of their utilization in anchoring the titanium complex have been investigated. ESCA study has shown that the above anchoring leads to formation of the silica-supported bis(h5-cyclopentadienyl)dichlorotitanium(IV) complex.

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Advantageous Role of Ir0 Supported on TiO2 Nanosheets in Photocatalytic CO2 Reduction to CH4: Fast Electron Transfer and Rich Surface Hydroxyl Groups

ACS Applied Materials & Interfaces ◽

10.1021/acsami.0c19233 ◽

2021 ◽

Vol 13 (5) ◽

pp. 6219-6228

Author(s):

Kunlin Tang ◽

Zhiqiang Wang ◽

Weixin Zou ◽

Hongyu Guo ◽

Yuchao Wu ◽

...

Keyword(s):

Electron Transfer ◽

Fast Electron ◽

Co2 Reduction ◽

Hydroxyl Groups ◽

Surface Hydroxyl ◽

Surface Hydroxyl Groups ◽

Tio2 Nanosheets

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Size-dependent dissociation of surface hydroxyl groups of silica in aqueous solution

Colloids and Surfaces A Physicochemical and Engineering Aspects ◽

10.1016/j.colsurfa.2021.127446 ◽

2021 ◽

pp. 127446

Author(s):

Ying Li ◽

Na Du ◽

Shue Song ◽

Wanguo Hou

Keyword(s):

Aqueous Solution ◽

Hydroxyl Groups ◽

Surface Hydroxyl ◽

Size Dependent ◽

Surface Hydroxyl Groups

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Interaction between molybdena and silica: FT-IR/PA studies of surface hydroxyl groups and pore structure assessment

Colloids and Surfaces A Physicochemical and Engineering Aspects ◽

10.1016/0927-7757(94)03005-7 ◽

1995 ◽

Vol 94 (2-3) ◽

pp. 267-277 ◽

Cited By ~ 29

Author(s):

Gamal M.S. El Shafei ◽

M. M. Mokhtar

Keyword(s):

Pore Structure ◽

Hydroxyl Groups ◽

Surface Hydroxyl ◽

Surface Hydroxyl Groups ◽

Ft Ir ◽

Structure Assessment

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Effects of surface hydroxyl groups induced by the co-precipitation temperature on the catalytic performance of direct synthesis of isobutanol from syngas

Fuel ◽

10.1016/j.fuel.2018.09.143 ◽

2019 ◽

Vol 237 ◽

pp. 1021-1028 ◽

Cited By ~ 6

Author(s):

Tao Zhang ◽

Yingquan Wu ◽

Xiaofeng Gao ◽

Hongjuan Xie ◽

Guohui Yang ◽

...

Keyword(s):

Direct Synthesis ◽

Catalytic Performance ◽

Hydroxyl Groups ◽

Surface Hydroxyl ◽

Precipitation Temperature ◽

Surface Hydroxyl Groups ◽

Co Precipitation

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Controllable synthesis of phosphate-modified BiPO4 nanorods with high photocatalytic activity: surface hydroxyl groups concentrations effects

RSC Advances ◽

10.1039/c5ra20189f ◽

2015 ◽

Vol 5 (121) ◽

pp. 99712-99721 ◽

Cited By ~ 18

Author(s):

Yan Li ◽

Yawen Wang ◽

Yu Huang ◽

Junji Cao ◽

Wingkei Ho ◽

...

Keyword(s):

Photocatalytic Activity ◽

Surface Modification ◽

Photocatalytic Performance ◽

High Photocatalytic Activity ◽

Hydroxyl Groups ◽

Controllable Synthesis ◽

Surface Hydroxyl ◽

Methylene Orange ◽

Surface Hydroxyl Groups

Surface modification by phosphate efficiently improves the photocatalytic performance of BiPO4 for the degradation of methylene orange (MO), by enhancing the concentration of surface hydroxyl groups and improving its hydrophilicity.

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