Nanocellulose Aerogels for Supporting Iron Catalysts and In Situ Formation of Polyethylene Nanocomposites

Hees, Timo; Zhong, Fan; Rudolph, Tobias; Walther, Andreas; Mülhaupt, Rolf

doi:10.1002/adfm.201605586

Cited by 59 publications

(37 citation statements)

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“…Nanocellulose-based porous materials have been investigated as absorbent materials, 65,68,95,112,127 templates for inorganic 113,114 or carbon porous materials, [115][116][117] gas membranes/lters, 68,75 and packaging materials. 79,118 This section reviews recent attempts to apply nanocellulose-based foams and aerogels as scaffolds in biomedical applications, for use in electrical devices and energy storage systems, and as thermal insulation and re retardant materials.…”

Section: Applicationsmentioning

confidence: 99%

Nanocellulose-based foams and aerogels: processing, properties, and applications

2017

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Section: Applicationsmentioning

confidence: 99%

Nanocellulose-based foams and aerogels: processing, properties, and applications

2017

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“…It should be noted that all‐polyethylene composite formation is not restricted to multi‐site catalyst technology. Ethylene polymerization on an iron catalyst supported on nanocellulose also produces self‐reinforcing all‐polyethylene composites due to the presence of significant amounts of unentangled UHMWPE which form shish‐kebab structures during injection molding …”

Section: All‐hydrocarbon Composites Via Polymerization Catalysismentioning

confidence: 99%

Tailoring Hydrocarbon Polymers and All‐Hydrocarbon Composites for Circular Economy

Hees

Zhong

Stürzel

et al. 2018

Macromol. Rapid Commun.

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The world population will rapidly grow from 7 to 9 billion by 2050 and this will parallel a surging annual plastics consumption from today's 350 million tons to well beyond 1 billion tons. The switch from a linear economy with its throwaway culture to a circular economy with efficient reuse of waste plastics is therefore mandatory. Hydrocarbon polymers, accounting for more than half the world's plastics production, enable closed‐loop recycling and effective product‐stewardship systems. High‐molar‐mass hydrocarbons serve as highly versatile, cost‐, resource‐, eco‐ and energy‐efficient, durable lightweight materials produced by solvent‐free, environmentally benign catalytic olefin polymerization. Nanophase separation and alignment of unentangled hydrocarbon polymers afford 100% recyclable self‐reinforcing all‐hydrocarbon composites without requiring the addition of either alien fibers or hazardous nanoparticles. Recycling of durable hydrocarbons is far superior to biodegradation. The facile thermal degradation enables liquefaction and quantitative recovery of low molar mass hydrocarbon oil and gas. Teamed up with biomass‐to‐liquid and carbon dioxide‐to‐fuel conversions, powered by renewable energy, waste hydrocarbons serve as renewable hydrocarbon feedstocks for the synthesis of high molar mass hydrocarbon materials. Herein, an overview is given on how innovations in catalyst and process technology enable tailoring of advanced recyclable hydrocarbon materials meeting the needs of sustainable development and a circular economy.

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“…Many studies are also underway on preparing nano‐porous biopolymer‐based aerogel materials because of their unique characteristics including relative abundance, renewable nature, low density, highly porous structure, high surface area, transparency, mechanical strength, low thermal conductivity, and large open pores . Biopolymer‐based aerogels cover wide range of diverse applications such as thermal insulators, scaffolds and drug carriers, super capacitors, matrices for catalysis, and gas adsorption . Interestingly, these biopolymer‐based aerogels have attracted attention recently for the removal of organic dyes .…”

Section: Introductionmentioning

confidence: 99%

Preparation of aerochitin‐TiO₂ composite for efficient photocatalytic degradation of methylene blue

Dassanayake

Rajakaruna

Abidi

2017

J of Applied Polymer Sci

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An aerochitin–titania (TiO2) composite was successfully synthesized and characterized by Fourier transform infrared spectroscopy, X‐ray diffraction, thermogravimetric analysis, field emission scanning electron microscopy, and N2 adsorption isotherms. The photocatalytic activity of the composite was investigated on the degradation of the model organic pollutant, methylene blue (MB) dye, under UV irradiation. The aerochitin–TiO2 composite showed excellent adsorptive and photocatalytic activity with a degradation degree of 98% for MB. The first‐order rate constants for the photodegradation MB by TiO2 nanoparticles and aerochitin–TiO2 composite were found to be (3.49 ± 0.04) × 10−3 and (1.82 ± 0.02) × 10−2 min−1. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45908.

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Nanocellulose Aerogels for Supporting Iron Catalysts and In Situ Formation of Polyethylene Nanocomposites

Abstract: Scheme 1. Freeze-drying of CNF hydrogels (identified by atomic force microscopy (AFM) height image; z-scale = 4 nm) leading to 2D sheet-like NC aerogels (image taken by scanning electron microscopy (SEM)) due to lamellar ice-templating.

Cited by 59 publications

References 54 publications

Nanocellulose-based foams and aerogels: processing, properties, and applications

Nanocellulose-based foams and aerogels: processing, properties, and applications

Tailoring Hydrocarbon Polymers and All‐Hydrocarbon Composites for Circular Economy

Preparation of aerochitin‐TiO₂ composite for efficient photocatalytic degradation of methylene blue

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Nanocellulose Aerogels for Supporting Iron Catalysts and In Situ Formation of Polyethylene Nanocomposites

Abstract: Scheme 1. Freeze-drying of CNF hydrogels (identified by atomic force microscopy (AFM) height image; z-scale = 4 nm) leading to 2D sheet-like NC aerogels (image taken by scanning electron microscopy (SEM)) due to lamellar ice-templating.

Cited by 59 publications

References 54 publications

Nanocellulose-based foams and aerogels: processing, properties, and applications

Nanocellulose-based foams and aerogels: processing, properties, and applications

Tailoring Hydrocarbon Polymers and All‐Hydrocarbon Composites for Circular Economy

Preparation of aerochitin‐TiO2 composite for efficient photocatalytic degradation of methylene blue

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Product

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Preparation of aerochitin‐TiO₂ composite for efficient photocatalytic degradation of methylene blue