Hybrid Organic—Inorganic Materials for Alternative Energy: On-Demand Hybrid Organic—Inorganic Materials for Alternative Energy
Sponsored by: ACerS Basic Science Division, ACerS Energy Materials and Systems Division, ACerS Glass & Optical Materials Division
Program Organizers: Andrei Jitianu, Lehman College, City University of New York; Lisa Klein, Rutgers University; Lia Stanciu, Purdue University; Mihaela Jitianu, William Paterson University
Friday 8:00 AM
October 22, 2021
Room: On-Demand Room 6
Location: MS&T On Demand
Invited
Challenges and Opportunities of Polymer Nanodielectrics for Electric Energy Storage: Lei Zhu1; 1Case Western Reserve University
With the modern development of power electrification, polymer nanocomposite dielectrics (or nanodielectrics) have attracted significant research attention. The idea is to combine the high dielectric constant of inorganic nanofillers and the high breakdown strength/low loss of the polymer matrix for higher energy density polymer film capacitors. Although impressively high energy density has been achieved at the laboratory scale, there is still a large gap from the eventual goal of polymer nanodielectric capacitors. Here, we focus on essential material issues for polymer/conductive nanoparticle and polymer/ceramic nanoparticle composites. Various material design parameters, including dielectric constant, dielectric loss, breakdown strength, high temperature rating, and discharged energy density will be discussed from both fundamental science and high-voltage capacitor application point of views. The objective is to identify advantages and disadvantages of the polymer nanodielectric approach against other approaches utilizing neat dielectric polymers and ceramics.
Invited
Proton-conducting Oxides for Energy Conversion: Chuancheng Duan1; 1Kansas State University
Over the last decade, proton-conducting oxides have received enormous attention due to the unique features and inherent advantages compared with other solid-state ionic materials, in particular oxygen-ion conducting oxides. Significant efforts have been devoted to advancing applications of proton conducting oxides. This talk aims to summarize the applications of proton-conducting oxides for generating power and producing chemicals, overview the most up-to-date developments of protonic conducting oxides, and bring together diverse subject matter by integrating fundamentals of proton-conducting oxides with engaging insights: Firstly, the roadmap of proton-conducing oxides and applications will be introduced. The materials, theories and fundamentals, and fabrication and processing technologies will be briefly discussed. Then, the talk will focus on presenting our achievements on developing high-performing fuel cells and electrolyzers based on proton-conducting oxides.
Application of Hybrid Photoanode Structures in Dye Sensitized Solar Cells (DSSCs): Pawel Jarka1; Tomasz Tański1; Wiktor Matysiak1; Aleksandra Drygała1; 1Silesian University of Technology
The purpose of the work is the manufactured the DSSC based on photoanodes in form of nanoparticles and nanowires combination. That structures leads to obtain large surface, improvements in electron transport efficiency and low electron recombination rate. The article describes the method of producing 1D nanostructures and the photoanode itself. The applied methods of electrospinning and screen printing, respectively, allow to achieve structural and dimensional homogeneity of the produced materials. Structural studies were carried out using atomic force microscope (AFM), RMS Ra roughness coefficients were determination to quantify of surface of the electrodes. Qualitative studies of chemical composition were conducted using Energy Dispersive Spectrometer (EDS). Optical properties were investigated in the wavelength range 200 to 900 nm using the UV-Vis spectrometer. The electrical properties of the manufactured test DSSCs were determined on the basis of the analysis of the I-V characteristics. Obtained cell efficiency results was in range 4.5–5%.
Invited
Grain Boundary Passivation for Enhancing Stability of Hybrid Perovskite Solar Cells: Chang-Yong Nam1; 1Brookhaven National Laboratory
Despite high efficiency, the poor stability poses a critical challenge for hybrid perovskite solar cells, which is largely caused by the ingression of moisture and an enhanced ion migration through grain boundaries (GBs). In this talk, I will overview the additive approach for passivating GBs and subsequently improving the stability of hybrid perovskite solar cells. For example, a new linear polymer additive, polycaprolactone (PCL), could functionalize GBs in methylammonium lead triiodide (MAPI) perovskites via direct backbone attachment, leading to the champion power conversion efficiency of 20.1% with vastly improved structural and chemical stabilities under thermal and moisture exposure conditions. Complementary physicochemical characterizations including transmission electron microscopy, infrared, and secondary ion mass spectroscopies confirmed a significantly suppressed ion migration by PCL [Zhou et al., Chem. Mater. <b>32</b>, 5104 (2020)]. I will also briefly discuss other additives and processing techniques effective for enhancing the performance and stability of hybrid perovskite solar cells.
Invited
Oxide Nanosheets in Hybrid Structures: Alp Sehirlioglu1; Kevin Pachuta1; Maria Escamilla2; Katelynn Edgehouse1; Emily Pentzer2; 1Case Western Reserve University; 2Texas A&M
Transition-metal-oxide nanosheets have sparked interest due to the multi-valent state of the cations that uniquely interact with their environment. Top-down approaches have been used to chemically exfoliate cobalt oxide nanosheets (CONs) from LiCoO2. Their morphology, size, and defect chemistry, as well as yield, has been controlled by processing parameters including post-exfoliation modifications. Both the nanosheets and their ready-to-exfoliate high surface area powder counterparts were found to be good catalytic materials as was observed for methylene blue degradation, CO oxidation, BPA removal from water and combustion of propellants. To access high surface area of the nanosheets with minimal material, CONs were used as particle surfactants to stabilize droplets of monomer in water, such that dispersion polymerization could be used to prepare “armored particles.” Here, a solid polymer particle is coated with CONs; the performance of these hybrid structures in BPA removal was compared to the nanosheets alone and the precursor powder.
Invited
Translational Research in Energy Storage: Opportunities for Flow Battery Science: James McKone1; Tejal Sawant1; Becca Segel1; Zachary Parr1; Carissa Yim1; Thomas Henry1; 1University of Pittsburgh
Redox flow batteries (RFBs) have undergone a resurgence of interest in research and technology development over the last decade. But the question remains as to whether flow batteries can provide sufficient value over fully packaged batteries (and Li-ion in particular) to justify their broad adoption for grid-scale energy storage. In this presentation, I will outline several of the main challenges facing the development of RFBs, emphasizing the relationships between fundamental material properties and battery performance. I will then describe ongoing work in our lab to develop tools and techniques that can be used to link laboratory studies of RFB active materials to practical device performance.
Enhancement of Viscoelastic Properties of MR-elastomer by Iron Particle Chain Structures for Adaptive Vibration Control: Narongdet Sulatchaneenopdon1; Hyoung-Won Son1; Anak Khantachawana2; Jon García-Barruetabeña3; María Jesús Elejabarrieta3; Tsutomu Takahashi1; Hisayuki Suematsu1; Koichi Niihara1; Tadachika Nakayama1; 1Nagaoka University of Technology; 2King Mongkut's University of Technology; 3University of Deusto
Recently, A passive damping technique with viscoelastic material was selected to attenuate structural vibration. The carbonyl iron particles (CIPs) based on MR-elastomer are considered a new group of damping material, which magnetic field change the dynamic flexural rigidity by changing the shear modulus. Therefore, this report aimed to investigate MR-elastomer's viscoelastic properties composed of CIPs contents by 10% volume fraction with various particle chain structures. The experimental testing is evaluated by oscillatory shear excitation as a frequency function and magnetic field strength. The results present that a magnetic field's particle chain structure and strength can enhance the viscoelastic properties. The viscoelastic damping, which means the materials respond to dissipated energy, was induced by magnetic field strength. Moreover, the 45°orientation structure exhibits the most dissipated energies under magnetic field application. The experimental results are very beneficial for designing and considering adaptive vibration control with improving damping characteristics by magnetic field densities.