A5046639988- Membrane Separation and Gas Transport
- Metal-Organic Frameworks: Synthesis and Applications
- Covalent Organic Framework Applications
- Muon and positron interactions and applications
- Membrane Separation Technologies
- Graphene research and applications
- Synthesis and properties of polymers
- Advanced Battery Materials and Technologies
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Chemical Synthesis and Characterization
- Gas Sensing Nanomaterials and Sensors
- Ionic liquids properties and applications
- Fuel Cells and Related Materials
- Advancements in Battery Materials
- Advanced Nanomaterials in Catalysis
- Advanced biosensing and bioanalysis techniques
- Lanthanide and Transition Metal Complexes
- Zeolite Catalysis and Synthesis
- RNA Interference and Gene Delivery
- Membrane-based Ion Separation Techniques
- Supramolecular Self-Assembly in Materials
- Crystallography and molecular interactions
- Conducting polymers and applications
- Pickering emulsions and particle stabilization
CSIRO Manufacturing
2016-2025
Commonwealth Scientific and Industrial Research Organisation
2013-2024
Queen's University Belfast
2024
Clayton Foundation
2015-2021
Health Sciences and Nutrition
2013-2019
Materials Science & Engineering
2010-2018
University of Manchester
2016
PRG S&Tech (South Korea)
2014
The University of Melbourne
2009
Abstract Enhancing the robustness of functional biomacromolecules is a critical challenge in biotechnology, which if addressed would enhance their use pharmaceuticals, chemical processing and biostorage. Here we report novel method, inspired by natural biomineralization processes, provides unprecedented protection encapsulating them within class porous materials termed metal-organic frameworks. We show that proteins, enzymes DNA rapidly induce formation protective framework coatings under...
Separation of molecules based on molecular size in zeolites with appropriate pore aperture dimensions has given rise to the definition "molecular sieves" and been basis for a variety separation applications. We show here that class chabazite zeolites, what appears be sieving" dimension is actually difference ability guest molecule induce temporary reversible cation deviation from center apertures, allowing exclusive admission certain molecules. This new mechanism discrimination permits...
Abstract Aging in super glassy polymers such as poly(trimethylsilylpropyne) (PTMSP), poly(4‐methyl‐2‐pentyne) (PMP), and with intrinsic microporosity (PIM‐1) reduces gas permeabilities limits their application gas‐separation membranes. While are initially very porous, ultra‐permeable, they quickly pack into a denser phase becoming less porous permeable. This age‐old problem has been solved by adding an ultraporous additive that maintains the low density, initial stage of through absorbing...
We have discovered and clarified the ultrahigh glass-forming ability of metal-organic frameworks—ZIF-62 [Zn(Im 2− x bIm )].
A critical materials challenge over the next quarter century is sustainable use and management of world's natural resources, particularly scarcest them. Chemistry's ability to get more from less epitomized by porous coordination polymers, also known as metal-organic frameworks (MOFs), which a minimum amount material build maximum surface areas with fine control pore size. Their large specific area tunable porosity make MOFs useful for applications including small-molecule sensing,...
Conversion of hydroxyl-containing polyimides into polybenzoxazole can be achieved by thermal rearrangement the aromatic polymer chain with decarboxylation at elevated temperature. Synthetic methods to prepare polyimide precursors are important for resulting thermally rearranged (TR) membranes. Here, we report on effect several imidization properties TR Thermal and chemical imidizations most common routes polyimides, solution using an azeotrope is also widely used, especially obtain soluble...
To date, only several microporous, and even fewer nanoporous, glasses have been produced, always via post synthesis acid treatment of phase separated dense materials, e.g. Vycor glass. In contrast, high internal surface areas are readily achieved in crystalline such as metal-organic frameworks (MOFs). It has recently discovered that a new family melt quenched can be produced from MOFs, though they thus far lacked the accessible intrinsic porosity their precursors. Here, we report first...
A novel method for the preparation of hierarchically porous LiFePO4 electrode materials lithium ion batteries has been investigated. meso/macroporous carbon monolith, a conductive framework, was prepared and infiltrated with precursors to increase electrode/electrolyte interface improve rate capability battery. The final LiFePO4/carbon monoliths feature hierarchical structure. were calcined at increasing temperatures, from 650 800 °C, determine structural sintering effects on electrochemical...
Porous LiFePO4 has been prepared via a solution-based templating technique. Beads of poly(methyl methacrylate) were synthesized with diameters 100, 140, and 270 nm used to form colloidal crystal templates produce LiFePO4, which featured pores spanning from 10 100 nm. The use allowed an examination the effects pore size on electrochemical properties. templated samples fully characterized using SEM, TEM, XRD, Rietveld analysis, nitrogen sorption prior testing. materials largest pores, around...
Microporous materials have a great importance in catalysis, delivery, storage and separation terms of their performance efficiency. Most microporous are comprised inorganic frameworks, while thermally rearranged (TR) polymers organic polymer which is tuned to optimize the cavity sizes distribution for difficult applications. The sub-nano sized microcavities controlled by situ thermal treatment conditions been investigated positron annihilation lifetime spectroscopy (PALS). size relative...
This paper reports a new macromolecular design that incorporates hierarchical triptycene unit into thermally rearranged polybenzoxazole (TR-PBO) structures for highly selective and permeable gas separation membranes with great potential H2 purification CO2 removal from natural gas. We demonstrate moieties not only effectively disrupt chain packing enabling microporous structure fast mass transport, but also introduce ultrafine microporosity via the unique internal free volume intrinsic to...
Abstract Recent work in biomolecule‐metal–organic framework (MOF) composites has proven to be an effective strategy for the protection of proteins. However, other biomacromolecules such as nucleic acids, encapsulation into nano MOFs and related characterizations are their infancy. Herein, a complete gene‐set zeolitic imidazolate framework‐8 (ZIF‐8) cellular expression gene delivered by MOF reported. Using green fluorescent protein (GFP) plasmid (plGFP) proof‐of‐concept genetic macromolecule,...
A porous treasure: Porous aromatic framework PAF-1 (see picture, blue structure) has been lithiated, giving a reduced with an increased gas storage capacity compared to native (by 22, 71, and 320 % for H2, CH4, CO2, respectively). The was examined spectroscopically, the potential hydrogen calculated.
A novel strategy to tune the cavity size and free volume of thermally rearranged polybenzoxazole (TR-PBO) copolymer membranes by transesterification cross-linking reaction o-hydroxy polyimide precursors with 1,4-butylene glycol in solid state is demonstrated this study. During thermal rearrangement (TR) process at high temperatures, loose diester interchain cross-linkers are prone degrade while formation a much more rigid cross-linked structure occurs following or alongside...
A series of chemically functionalized porous aromatic frameworks (PAFs) have been synthesized and deployed within mixed-matrix membranes for gas separation. This PAFs delivered the first time simultaneous control selective transport physical aging membranes. New composites including native metalated fullerenes were also prepared, exhibited exceptional increases in their porosity, which turn resulted ultrafast transport. CO2 permeability following PAF-1-Li6C60 infusion...
The loss of internal pores, a process known as physical aging, inhibits the long-term use most promising gas-separation polymers. Previously we reported that porous aromatic framework (PAF-1) could form remarkable nanocomposite with polymers to stop aging. However, PAF-1 synthesis is very onerous both from reagent and reaction-condition perspective, making it difficult scale-up. We now reveal highly dispersible scalable additive based on α,α'-dichloro-p-xylene (p-DCX), aging more...
Devices displaying controllably tunable optical properties through an applied voltage are attractive for smart glass, mirrors, and displays. Electrochromic material development aims to decrease power consumption while increasing the variety of attainable colors, their brilliance, longevity. We report first electrochromic device constructed from metal organic frameworks (MOFs). Two MOF films, HKUST-1 ZnMOF-74, assembled so that oxidation one corresponds reduction other, allowing two sides...
Silica aerogels are unique porous materials possessing high visible-light transparency and low thermal conductivity. However, the practical applications limited due to native fragility of silica, a lot research focuses on improvement mechanical properties by organic–inorganic hybridization, so forth. Here, first synthesis polyethylsilsesquioxane (PESQ; CH3CH2SiO1.5) polyvinylsilsesquioxane (PVSQ; CH2═CHSiO1.5) is reported. The resultant PESQ PVSQ obtained through two-step acid–base sol–gel...