The resulting functional polyolefins show many desirable properties and applications. This chapter focuses on applications in the area of energy storage. Specifically, I will discuss …
Learn MorePolyolefin composites are of great relevance in electrical energy storage and insulation applications, as it is possible to tune their properties by combining …
Learn MoreAbstract The radiolytic surface oxidation of polyethylene and polypropylene in air and in three-phase dispersed systems including water or an aqueous formic acid solution has been studied using adhesion tests. The oxidation in the center and on the periphery of a dispersion of a 1.5 g/cm2 thickness has been analyzed at an electron …
Learn MoreIn this paper, I will cover three energy-related areas, including polymer film capacitors for electric energy storage, ion exchange membranes for hydrogen energy, and oil superabsorbent polymers for oil spill recovery, to discuss the effects of new polyolefin …
Learn MoreFunctional Polyolefins for Energy Applications. T. C. Mike Chung. Published 13 August 2013. Materials Science, Environmental Science, Engineering. Macromolecules. Polyolefins, including polyethylene (PE) and polypropylene (PP), represent more than half of commercial polymers produced in the world. They are known …
Learn MoreSynthesis of Chain-end Functionalized Polyolefins and Polyolefin Diblock Copolymers via the Combination of Metallocene Catalysts and Reactive Chain Transfer Agents. Israel Journal of Chemistry 2002, …
Learn MoreIn July 2021 China announced plans to install over 30 GW of energy storage by 2025 (excluding pumped-storage hydropower), a more than three-fold increase on its installed capacity as of 2022. The United States'' Inflation Reduction Act, passed in August 2022, includes an investment tax credit for sta nd-alone storage, which is expected to boost the …
Learn MorePolyolefins play a crucial role in the polymer industry because of their low-cost monomers and well-established production processes. Recent years have witnessed tremendous progress in direct and tandem copolymerization strategies that provide an opportunity of developing polyolefins bearing polar groups with distinctive architectures …
Learn MoreDOI: 10.1039/C2EE21166A Corpus ID: 93934840 Black perspectives for a green future: hydrothermal carbons for environment protection and energy storage @article{Titirici2012BlackPF, title={Black perspectives for a green future: hydrothermal carbons for environment protection and energy storage}, author={Maria‐Magdalena …
Learn MoreThis review summarizes the recent progress on the development of porous materials (e.g., metal-organic frameworks, covalent organic frameworks, porous organic polymers, carbon-based materials, and zeolites) and their composites with encapsulated hydrides of light elements for hydrogen storage. It also provides an outlook on material design, process …
Learn MoreOf all polymers, polyolefins have the lowest life-cycle environmental impact and even outperform renewable polymers. However, polyolefins are chemically inert and reveal a low surface energy. Combining their excellent mechanical properties with the ability to adhere to other materials or create self-assembled or nanostructured materials …
Learn MoreThe composite film with 12 vol. % MBS showed the maximum breakdown strength of 535 MV/m and the high energy density of 9.85 J/cm 3, which were 1.7 times and about 2.2 times higher than pure PVDF film, respectively.
Learn MoreHighly porous MOFs are promising candidates for hydrogen storage because of their high accessible surface areas and porosities, particularly at cryo-temperatures such as 77 K. Apart from the highly porous MOFs based on Cu 2 and Zn 4 clusters discussed in the previous section (i.e., Cu-she-MOFs, IRMOF-20, and NU-100), …
Learn MoreMore efficient alternatives from the energy balance standpoint are methane pyrolysis with carbon free energy, but similarly also carbon-free electric cracker provides low carbon emission hydrogen. In general, one can conclude that commercially viable "green" polyolefins are 35–45% less carbon intensive compared to "grey" …
Learn MoreResearch SummaryFunctionalization of polyolefins via the combination of metallocene catalysts and reactive chain transfer agents; functionalization of fluoropolymers using borane-mediated radical polymerization; living radical polymerization based on new borane/oxygen initiators; energy storage via polymer thin film capacitors with high …
Learn MoreFunctional Polyolefins for Energy Applications. T. C. Mike Chung *. View Author Information. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States. * E-mail [email protected] Cite this: Macromolecules2013, 46, 17, 6671–6698. Publication Date …
Learn MoreIn this paper, I will cover three energy-related areas, including polymer film capacitors for electric energy storage, ion exchange membranes for hydrogen energy, …
Learn MoreMarch 20, 2024. Biological and Environmental Research. Yeast Uses Plastic Waste Oils to Make High-Value Chemicals. Images of Yarrowia lipolytica surrounding and growing on polyolefin oil droplets (large red circles). Cells were stained blue to show the chitin cell walls and red to show the lipid bodies inside the cells and the oil droplets ...
Learn MoreIn this paper, I will cover three energy-related areas, including polymer film capacitors for electric energy storage, ion exchange membranes for hydrogen energy, and oil …
Learn MoreDeep energy traps suppress the conductivity loss within the composite dielectric by capturing charges, thereby improving its energy storage performance ( Fig. S8). The optimal content of the PDs for improving the capacitive performance is determined to be 0.5 wt% as suggested by the highest U e and η at 150 °C among the pPAES/PDs …
Learn MoreProfessor of Materials Science and Engineering, Penn State University - Cited by 12,896 - polymer chemistry - functional polyolefin - energy storage - green technology This "Cited by" count includes citations to the following articles in Scholar. The ones ...
Learn MoreThe results indicate that the most effective pores for hydrogen storage are largely dependent on the storage pressure. Ultramicropores (0.65–0.85 nm) was the most desired for hydrogen uptake at 1 bar and 77 K, and micropores (0.85–2 nm) would be more useful for hydrogen storage at higher pressure at 77 K.
Learn MoreGluing polyolefins [e.g., polyethylene (PE) and polypropylene (PP)] results in a very challenging task. The main reason relies on their low surface energy, which reduces the affinity between the polyolefin surface and the chosen adhesive. To tackle this problem, the most commonly used solutions are physical surface treatments, such as …
Learn MoreGo to: This paper reports the principal discoveries which have played a major role in the polyolefin field and have positioned polyolefins as the most produced plastics. The early development of polyolefins covering the production of LDPE (Low density polyethylene) at ICI (Imperial Chemical Industries) and the discovery of Phillips or …
Learn MoreTherefore, this paper, presents emerging advances in design, development, fabrication, characterization, electrochemical energy storage and conversion and photo-catalysts applications of phosphorene (P N) and P N polymeric nanoarchitectures (PPN). Currently, varying fabrication approaches have been utilized in preparation of P N …
Learn MorePolyolefins, including polyethylene (PE) and polypropylene (PP), represent more than half of commercial polymers produced in the world. They are known to be cost-effective and good performing materials used in a broad range of commodity applications that influence our everyday lives. On the other hand, less attention has been paid to their specialty …
Learn MoreThis chapter discusses our research into the functionalization of polyolefins (PE, PP etc.) that contain polar groups (such as OH and NH2) in the side chains and …
Learn MoreIn this paper, I will cover three energy-related areas, including polymer film capacitors for electric energy storage, ion exchange membranes for hydrogen energy, …
Learn MoreUsing air as an oxygen source in a fluidized bed reactor, HDPE and PP are rapidly deconstructed while using up to 84% less energy through the energy released by partial oxidation. Characterization of the thermal oxo-degradation product oil shows comparable composition to conventional pyrolysis oil.
Learn MoreFunctional Polyolefins for Energy Applications. T. C. Mike Chung *. View Author Information. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States. E-mail [email protected] Cite this: Macromolecules2013, 46, 17, 6671–6698.
Learn MorePolyolefins have dominated materials technology over the last century and remain among the most used materials, despite environmental problems have emerged and their public perception deteriorated. Polyolefin thermoplastic elastomers (P-TPEs) are a particular class of polyolefins: they can be easily molded and extruded like …
Learn MorePolyolefins represent more than 50% of global production capacity for all commodity plastics, with abundant ethylene and propylene as the principal feedstock. In 2018, the global plastic market consisted of 359 million tons, about half of it being constituted by polyolefins (19.3% PP, 17.5% LDPE/LLDPE and 12.2% HDPE) [8] .
Learn MoreUtilizing polyolefins as chemical energy storage or source of chemicals (inctuding H 2) can be an effective way to extend the lifecycle of these materials. Combustion technology has a well-established industrial infrastructure [ 12 ].
Learn MoreThermal oxo-degradation is a form of oxidative pyrolysis used in the upgrading of plastics. Here, Brown et al. show that introduction of oxygen promotes partial oxidation of plastics, releasing heat in the reaction and decreasing external energy needs for hydrocarbon products that can be upgraded to monomers.
Learn More2019. TLDR. This review focusses on the end-functionalisation of polyolefins by catalytic olefin polymerisation processes, almost invariably by metal …
Learn More2 Functionalised polyolefins Due to the outstanding material properties of non-functionalised polyolefins (i.e. polyethene and polypropene), obtaining functional polymers based on polyolefins is of growing interest. 3 …
Learn MoreWe then turn our attention into PE and PP composites for electrical energy storage and insulation applications. We show how, in these materials, the effect of the polymer matrix and filler orientation has been proven key to enhance their dielectric breakdown strength.
Learn MoreTwo-dimensional (2D) mesoporous materials (2DMMs), defined as 2D nanosheets with randomly dispersed or orderly aligned mesopores of 2–50 nm, can synergistically combine the fascinating merits of 2D materials and mesoporous materials, while overcoming their intrinsic shortcomings, e.g., easy self-stacking of 2D materials and …
Learn MoreIndeed, because of aromatic stabilization, the 3 C–H bond of PS possesses lower bond dissociation energy (BDE), compared to polyolefins. (50) For polyolefins, because of the need for more reactive (often radical-based) chemistry for activation, a balance must be struck between achieving a high degree of functionalization, …
Learn MoreIn energy storage capacitors, polymer dielectric films are placed between two metalized electrodes where energy is stored electrostatically upon application of the electric field. The energy density ( U e ) for dielectric energy storage depends on the dielectric constant ε and applied electric field E according to the equation, 28–30 U e = 1/2 εε 0 E 2, where ε 0 is …
Learn MoreThe enhancement of dielectric performance and energy storage density has been a primary focus of numerous scientists and engineers in the field of energy storage research [2,6,7,8,9]. Materials with relatively high dielectric permittivity, low dielectric loss, high dielectric strength, low processing temperature, and high flexibility are …
Learn MoreFuel cells. Carbon fiber reinforced polymer (CFRP) is a lightweight and strong material that is being increasingly used in the construction of fuel cells for energy storage. CFRP is used to construct the bipolar plates and other components of the fuel cell stack, providing structural support and protection for the fuel cell membranes and ...
Learn More