Low- and high-density polyethylene (LDPE/HDPE) have been selectively depolymerized, without added H2, to C2–C20 + alkanes/alkenes via energy-efficient radio frequency induction heating, coupled with dual-functional heterogeneous Fe3O4 Ni- or Pt-based catalysts. was used locally generate heat when exposed magnetic fields. Initial results indicate that zeolite-based Ni catalysts are more selective light olefins, while supported on ceria C7–C14 alkanes/alkenes. LDPE conversions up 94% were...

Abstract Self‐rolled‐up membrane (S‐RuM) 3D microtube inductors represent a significant advancement in miniaturization for radio frequency (RF) integrated circuit applications, particularly internet‐of‐things and 5G/6G communications. These have excellent high‐frequency performance due to better confinement of the magnetic field weak dependence on substrate conductivity. However, previously reported S‐RuM inductor frequencies are limited by crosstalk capacitance between overlapping metal...

Radio frequency (RF) induction heating was compared to conventional thermal for the hydrogenation of oleic acid stearic acid. The RF reaction demonstrated decreased coke accumulation and increased product selectivity at comparable temperatures over mesoporous Fe3O4 catalysts composed 28–32 nm diameter nanoparticles. supports were decorated with Pd Pt active sites served as local heat generators when subjected an alternating magnetic field. For Pd/Fe3O4, both methods gave similar liquid...

Vanadium oxide nanorods of size 10–50 nm diameter with a length several micrometers were synthesized from xerogels through template-free simple hydrothermal process. The pristine products then characterized using X-ray diffractometry, Fourier transformation infrared spectroscopy, scanning electron microscopy, transmission and cyclic voltammetry. measured specific charge for is 385 mAh/g during the initial discharge A decrease in cycling indicates loss electronegativity.

Abstract Internet‐of‐Things and Cyber‐Physical‐System applications demand compact power converters, which require inductors to have small footprints but considerable handling abilities. 3D air‐core tubular fabricated using the self‐rolled‐up membrane (S‐RuM) technology demonstrated significantly higher inductance density compared conventional planar structures. However, previous design options associated performance are constrained by resistive loss due thickness of metal magnetic coupling...

Nanosized lithium vanadate materials were synthesized by controlling the pH of hydroxide solution vanadium pentoxide using precipitation and hydrothermal methods. The crystal structure phase purity samples examined powder XRD. identified as LiVO3/Li4V10O27 (pH = 2, 6 method) LiV3O8 2 6, method). O2 treated vanadates LiVO3/Li3VO4. electrochemical properties cathode made nanomaterials are discussed.

We report the first in-situ time-resolved X-ray diffraction investigation in conjunction with a non-isothermal kinetic study using model-free isoconversional method to determine formation mechanism for solid-state synthesis of electrochemically active LiCoO(2) from Li(2)CO(3) and Co(3)O(4). Detailed information on phase evolution as well thermal events during heating process was clearly observed, explained, supported. This provides structural evidence multistep reaction proposes plausible LiCoO(2).

The electrode materials SnO2, RuO2 and (Sn-Ru)O2 were synthesized through precipitation method from SnCl2·2H2O RuCl2·2H2O solutions. obtained nano-sized pristine products characterized using X-ray diffractometry, Scanning Electron Microscopy (SEM), differential scanning calorimetry (DSC)-thermogravimetric analysis (TGA) cyclic voltammetry (CV). Debye–Scherrer formula was used to estimate the average size of nanoparticles SnO2 (36 nm), RuO2(24 (19 nm). Electrochemical studies carried out...

The 21st century student learns and communicates in the virtual world. In order to meet individual instructional needs of students, science laboratories should be researched accomplish goal. This study evaluated effectiveness a chemistry laboratory enhancing students’ conceptual understanding as pre-laboratory assignment. included thirteen undergraduate majors enrolled second semester general course. Two experiments were selected from syllabus performed virtually, addition physical...

With the mounting need for clean and renewable energy, catalysts hydrogen production based on earth abundant elements are of great interest. Herein, we describe synthesis, characterization, catalytic activity two nickel complexes pyridinediimine ligand that possess basic nitrogen moieties pyridine imidazole could potentially serve as pendent bases to enhance catalysis. Although these ligands have previously been reported be complexed some metal ions, they not applied nickel. The complex with...

The demand on power inductors with high inductances (micro-Henries) and current-carrying capacities to have small footprints for Internet-of-Things (IOT) Cyber-Physical-System (CPS) applications poses design fabrication challenges. 3D air-core microtube fabricated self-rolled-up membranes (S-RuM) can provide higher inductance densities than planar inductors, but are restricted by both resistive losses, dependent metal film thickness, limited magnetic core integration. This study proposes a...

The miniaturization of passive electronic components is essential for radio-frequency integrated circuits (RFICs). In addition, with the surge wireless technologies, need reconfigurable and tunable (RF) has grown. Enabled by strain-induced self-rolled-up membrane (S-RuM) technology, three-dimensional (3D) tubular interdigital capacitors greatly reduced footprints can be made diameter-dependent capacitances. By integrating piezoelectric AlScN, diameter thus capacitance tuning demonstrated...

Strain-induced Self-rolled-up membrane (S-RuM) technology is a paradigm-shifting fabrication scheme for extreme miniaturization and integration of passive electronic, photonic microfluidic components. The overarching physical principle S-RuM strain-driven spontaneous deformation 2D membranes into 3D architectures. In this talk, I will present several examples based applications including inductors, transformers, L-C filters, waveguides, as well channels neuron cell growth acceleration...

Electroplating In article number 2400092, Xiuling Li and co-workers introduce a strain-induced self-rolled-up membrane (S-RuM) platform that presents CMOS-compatible solution for extreme miniaturization on-chip integration of passive components including inductors capacitors. By employing post-rolling electroplating on both the walls core curved surfaces S-RuM inductor arrays, enhancements to quality factor inductance can be achieved without sacrificing footprint.

We report a new approach to generate waveguide-coupled emission from deterministically implanted boron vacancy spin defects in hBN using single-crystal AlN-on-sapphire ring resonators. This facilitates the eventual development of hBN-based integrated quantum technologies.