Recyclable liquid-like POSS derivatives with designed structures and their potential for CO2 capture

doi:10.1016/j.matdes.2016.03.010

Materials & Design

Volume 99, 5 June 2016, Pages 145-154

https://doi.org/10.1016/j.matdes.2016.03.010 Get rights and content

Highlights

•
Liquid-like POSS derivatives with designed structures were fabricated.
•
Influences of derivative structures on CO₂ capturing were studied systematically.
•
Physical adsorption of CO₂ by these derivatives contributes the most capacity.

Abstract

Six kinds of liquid-like trisilanol isobutyl-POSS derivatives are designed and synthesized to study the influences of their structures on capturing CO₂. The derivatives are different in bonding types, single bond NH content, flow ability, grafting ratio or molecular size. The CO₂ capture property of these derivatives is tested. It is found that bonding types can affect the recycle property, NH content can affect the chemical absorption, molecular size can affect the physical adsorption, and flow ability can affect both chemical absorption and physical adsorption. Furthermore, the physical adsorption is determining factor that cause differences from liquid-like derivatives to traditional amine based solvents CO₂ absorbents.

Graphical abstract

Introduction

Liquid-like materials have attracted wide attention because of their unique chemical and physical property and wide application potentials [1], [2]. The liquid-like materials always have core, corona and canopy structures. Some inorganic nano-particles like Fe₃O₄, MWCNTs are always used as their core structures, the silane coupling agent and some flexible monomers are always used as their corona and canopy structures, respectively. They always exhibit negligible vapor pressure, good dispersion of nano-particles without any solvent and liquid-like behavior under relatively low temperature [3], [4]. With programmable structure, amine group can be introduce into liquid-like materials and they can be used in capturing CO₂ [5], [6], [7], [8].

The monoethanolamine (MEA) based solvents are the most favored traditional CO₂ capture due to their high CO₂ capacity and fast reaction kinetics [3]. However, the corrosive fume is thought to cause secondary pollution and high cost in capture equipment, which limits its application [9], [10], [11]. To resolve these drawbacks, it is highly expected for environmental friendly captures with high capacity [12]. Thus, lots of novel captures have been fabricated, and the liquid-like materials with solvent free property are widely studied [13], [14], [15], [16], [17].

Polyhedral oligomeric silsesquioxanes is a hybrid material, which consists of an inorganic silica core surrounded by organic groups. With size of 1–3 nm, polyhedral oligomeric silsesquioxanes can be thought as the smallest particles of silica [18]. Kinds of liquid-like materials based on polyhedral oligomeric silsesquioxanes have been fabricated, and some were used in studying their interaction with CO₂. Petit et al. [19] synthesized liquid-like nanoparticle organic hybrid material by ionic grafting of polymer chains onto polyhedral oligomeric silsesquioxanes and studied the interaction between this hybrid material and CO₂.

Previous studies indicated that capture capacity of CO₂ by liquid-like derivatives is attributed to both physical adsorption (Cp) and chemical absorption (Cc) [3], [4], [20]. The capture property is affected by bonding types, size of particles, flow ability and single bond NH content of liquid-like derivatives [21].

To systematically research the effects of these structures on capturing CO₂ by liquid like polyhedral oligomeric silsesquioxanes derivatives (liquid-Ds), we designed and synthesized a series of liquid-Ds. The trisilanol isobutyl-POSS (POSS) is selected as the core. Unlike SiO₂ and Fe₃O₄ particles, the size and single bond OH groups on the surface of POSS are able to be controlled strictly, as a result, the molecular size and grafting ratio of liquid-Ds are able to be adjusted. To fabricate liquid-Ds with different molecular sizes, the polyetheramine M2070 (M2070) and polyetheramine M1000 (M1000) are selected as canopies. M2070 and M1000 have similar molecular structure, but different molecular weights. The 3-(trihydroxysilyl)-1-propane-sulfoni (SIT8378.3) with sulfonic acid group and γ-(2,3-epoxypropoxy)-propyltrimethoxysilane (KH560) with epoxy group are selected as corona structures. They can form ionic bond and covalent bond with the canopy structures, respectively. They are used in studying the influence of bonding types. The polyetheramine D2000 (D2000) and M2070 have the same molecular weight and different single bond NH content. They are selected to study the effect of NH content on CO₂ capture property. The synthesis process is controlled and liquid-Ds with different grafting ratios are obtained. The viscosity of these products is tested and the effect of flow ability is also studied. Structures of these raw materials are shown in Fig. 1.

Section snippets

Materials

The POSS was obtained from Hybrid Plastics and used without further purification. The SIT8378.3 and KH560 were purchased from Aladdin Chemistry Co. The M1000, M2070 and D2000 were bought from Aladdin Chemistry Co, too.

In this study, six liquid-Ds are prepared. These derivatives are different from each other in bonding type, amine structure or grafting ratio. The abbreviation of each derivative is designed (Fig. 2), “C” and “I” denote to bonding types, and the serial numbers from I to VI are on

Characterization of liquid-Ds

Liquid-Ds were synthesized through the reaction steps. The liquid-Ds are transparent and can flow like liquid near room temperature. The nanoparticle property of liquid-Ds is proved by TEM photos. As shown in Fig. 5, all the liquid-Ds particles are in nano-scale, and the aggregation is avoided. The size range of liquid-D particle is 4–8 nm, and size distribution of each liquid-D is narrow.

Prior to the application of the liquid-Ds, it is important to confirm their successful synthesis. FTIR

Conclusions

The successfully synthesized POSS derivatives are liquid-like under room temperature. Capacity of liquid-Ds on capturing CO₂ is affected by its structure including bonding type, flow ability, molecular weight and amine group. The bonding type can affect the recycle property and the C-liquid-Ds possess better recycle property. The better flow ability can help CO₂ get inside the adsorbent more easily and get better capture performance. The Cc and Cp are defined to describe the capture of CO₂ and

Acknowledgements

This work is supported by the National Natural Science Foundation of China (51373137).

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Process for CO2 capture using ionic liquid that exhibits phase change
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Development of a process for an efficient exploitation of CO₂ captured from flue gases as liquid carbonates for Chlorella protothecoides cultivation
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Nanoconfined amine-functionalized silicone oil sorbents for rapid CO₂-capture
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Highly selective CO₂ capture by triazine-based benzimidazole-linked polymers
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Materials & Design

Highlights

Abstract

Graphical abstract

Introduction

Section snippets

Materials

Characterization of liquid-Ds

Conclusions

Acknowledgements

References (21)

Molecular design of POSS core star polyimides as a route to low-κ dielectric materials

Mater. Chem. Phys.

Ionic liquid of ultralong carbon nanotubes

Small

Thermal stability, swelling behavior and CO₂ absorption properties of Nanoscale Ionic Materials (NIMs)

RSC Adv.

Effects of bonding types and functional groups on CO₂ capture using novel multiphase systems of liquid-like nanoparticle organic hybrid materials

Environ. Sci. Technol.

Investigation of CO₂ capture mechanisms of liquid-like nanoparticle organic hybrid materials via structural characterization

Phys. Chem. Chem. Phys.

A review of CO₂ capture by absorption and adsorption

Aerosol Air Qual. Res.

Process for CO2 capture using ionic liquid that exhibits phase change

Energy Fuel

Development of a process for an efficient exploitation of CO₂ captured from flue gases as liquid carbonates for Chlorella protothecoides cultivation

Ind. Eng. Chem. Res.

Nanoconfined amine-functionalized silicone oil sorbents for rapid CO₂-capture

Ind. Eng. Chem. Res.

Highly selective CO₂ capture by triazine-based benzimidazole-linked polymers

Macromolecules

Cited by (23)

Assessing absorption-based CO<inf>2</inf> capture: Research progress and techno-economic assessment overview

Anhydrous multi-hybrid absorbent with low viscosity and high regeneration efficiency for post-combustion CO<inf>2</inf> capture

CO<inf>2</inf> capture and sequestration in porous media with SiO<inf>2</inf> aerogel nanoparticle-stabilized foams

A comparative review of performance of nanomaterials for Direct Air Capture

Tandem micellar catalysis and cloud point extraction process for C-S coupling reaction in water

Biomass-derived flexible porous carbon materials and their applications in supercapacitor and gas adsorption

Recyclable liquid-like POSS derivatives with designed structures and their potential for CO2 capture

Highlights

Abstract

Graphical abstract

Introduction

Section snippets

Materials

Characterization of liquid-Ds

Conclusions

Acknowledgements

Mater. Chem. Phys.

Ionic liquid of ultralong carbon nanotubes

Small

Thermal stability, swelling behavior and CO2 absorption properties of Nanoscale Ionic Materials (NIMs)

RSC Adv.

Effects of bonding types and functional groups on CO2 capture using novel multiphase systems of liquid-like nanoparticle organic hybrid materials

Environ. Sci. Technol.

Investigation of CO2 capture mechanisms of liquid-like nanoparticle organic hybrid materials via structural characterization

Phys. Chem. Chem. Phys.

A review of CO2 capture by absorption and adsorption

Aerosol Air Qual. Res.

Process for CO2 capture using ionic liquid that exhibits phase change

Energy Fuel

Development of a process for an efficient exploitation of CO2 captured from flue gases as liquid carbonates for Chlorella protothecoides cultivation

Ind. Eng. Chem. Res.

Nanoconfined amine-functionalized silicone oil sorbents for rapid CO2-capture

Ind. Eng. Chem. Res.

Highly selective CO2 capture by triazine-based benzimidazole-linked polymers

Macromolecules

Recyclable liquid-like POSS derivatives with designed structures and their potential for CO₂ capture

Thermal stability, swelling behavior and CO₂ absorption properties of Nanoscale Ionic Materials (NIMs)

Effects of bonding types and functional groups on CO₂ capture using novel multiphase systems of liquid-like nanoparticle organic hybrid materials

Investigation of CO₂ capture mechanisms of liquid-like nanoparticle organic hybrid materials via structural characterization

A review of CO₂ capture by absorption and adsorption

Development of a process for an efficient exploitation of CO₂ captured from flue gases as liquid carbonates for Chlorella protothecoides cultivation

Nanoconfined amine-functionalized silicone oil sorbents for rapid CO₂-capture

Highly selective CO₂ capture by triazine-based benzimidazole-linked polymers