James A. Dorman
YOU?
Author Swipe
Improved Performance of Catalysts Containing Pt, Pt–Sn, and V in the Dehydrogenation of <i>n</i>-Butane by Radio-Frequency Induction Heating Open
Due to an abundance of shale gas, manufacturers are interested in meeting increased demands for alkenes, especially n-alkenes, by the dehydrogenation of light alkanes. While the catalysts for these reactions have been studied for many year…
Improved Selectivity and Stability in Methane Dry Reforming by Atomic Layer Deposition on Ni-CeO<sub>2</sub>–ZrO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> Catalysts Open
Ni can be used as a catalyst for dry reforming of methane (DRM), replacing more expensive and less abundant noble metal catalysts (Pt, Pd, and Rh) with little sacrifice in activity. Ni catalysts deactivate quickly under realistic DRM condi…
Impact of Structural Changes on Energy Transfer in the Anion-Engineered Re<sup>3+</sup>:Y<sub>2</sub>O<sub>3</sub> Through Low-Temperature Synthesis Approach Open
Anion engineering has proven to be an effective strategy to tailor the physical and chemical properties of metal oxides by modifying their existing crystal structures. In this work, a low-temperature synthesis for rare earth (RE)-doped Y2O…
Zeolite Supported Pt for Depolymerization of Polyethylene by Induction Heating Open
We demonstrate that for polyethylene depolymerization with induction heating (IH), using a bifunctional (Pt- or Pt-Sn-containing zeolite) hydrocracking catalyst, we can obtain high hydrocarbon product yields (up to 95 wt % in 2 h) at a rel…
Thermal, Physical, and Optical Properties of the Solution and Melt Synthesized Single Crystal CsPbBr3 Halide Perovskite Open
Inorganic lead-halide perovskite, cesium lead bromide (CsPbBr3), shows outstanding optoelectronic properties. Both solution- and melt-based methods have been proposed for CsPbBr3 crystal growth. The solution-based growth was done at low-te…
Generation of 3D Spheroids Using a Thiol–Acrylate Hydrogel Scaffold to Study Endocrine Response in ER<sup>+</sup> Breast Cancer Open
Culturing cancer cells in a three-dimensional (3D) environment better recapitulates in vivo conditions by mimicking cell-to-cell interactions and mass transfer limitations of metabolites, oxygen, and drugs. Recent drug studies have suggest…
Impact of Sc<sup>3+</sup>-Modified Local Site Symmetries on Er<sup>3+</sup> Ion Upconversion Luminescence in Y<sub>2</sub>O<sub>3</sub> Nanoparticles Open
[Image: see text] Rare earth (RE) doped yttria sesquioxide has been widely used as host materials for upconversion (UC) phosphors due to their high refractive index, wide band gap, and high melting point. Meanwhile, while fluoride matrices…
Induction Heating of Magnetically Susceptible Nanoparticles for Enhanced Hydrogenation of Oleic Acid Open
Radio frequency (RF) induction heating was compared to conventional thermal heating for the hydrogenation of oleic acid to stearic acid. The RF reaction demonstrated decreased coke accumulation and increased product selectivity at comparab…
Direct Probing of Fe<sub>3</sub>O<sub>4</sub> Nanoparticle Surface Temperatures during Magnetic Heating: Implications for Induction Catalysis Open
The presence of a temperature gradient between the magnetic nanoparticle (NP) surface and the bulk medium during induction heating has been observed across several fields. While no noticeable increase in bulk temperature is observed, biolo…
Catalytic Depolymerization of Waste Polyolefins by Induction Heating: Selective Alkane/Alkene Production Open
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 and …
Simultaneous Droplet Generation with In-Series Droplet T-Junctions Induced by Gravity-Induced Flow Open
Droplet microfluidics offers a wide range of applications, including high-throughput drug screening and single-cell DNA amplification. However, these platforms are often limited to single-input conditions that prevent them from analyzing m…
Modifying Metastable Sr<sub>1–<i>x</i></sub>BO<sub>3−δ</sub> (B = Nb, Ta, and Mo) Perovskites for Electrode Materials Open
The presence of surface/deep defects in 4d- and 5d-perovskite oxide (ABO3, B = Nb, Ta, Mo, etc.) nanoparticles (NPs), originating from multivalent B-site cations, contributes to suppressing their metallic properties. These defect states ca…
Catalytic Enhancement of Inductively Heated Fe<sub>3</sub>O<sub>4</sub> Nanoparticles by Removal of Surface Ligands Open
Heat management in catalysis is limited by each material's heat transfer efficiencies, resulting in energy losses despite current thermal engineering strategies. In contrast, induction heating of magnetic nanoparticles (NPs) generates heat…
Simulated field-modulated x-ray absorption in titania Open
In this paper, we present a method to compute the x-ray absorption near-edge structure (XANES) spectra of solid-state transition metal oxides using real-time time-dependent density functional theory, including spin–orbit coupling effects. …
Adsorption of Polarized Molecules for Interfacial Band Engineering of Doped TiO<sub>2</sub>Thin Films Open
Owing to their chemical and mechanical stability, metal-oxides have emerged as potential alternatives for conventional pure-metal and organic molecule-based solid-state electronic devices. Traditionally, band engineering of these metal-oxi…
Critical Coupling of Visible Light Extends Hot-Electron Lifetimes for H<sub>2</sub>O<sub>2</sub> Synthesis Open
Devices driven by above-equilibrium "hot" electrons are appealing for photocatalytic technologies, such as in situ H2O2 synthesis, but currently suffer from low (2/Al film stack, deposited through room-temperature, lithography-free methods…
Enhancing Ce<i><sub>x</sub></i>Zr<sub>1–<i>x</i></sub>O<sub>2</sub> Activity for Methane Dry Reforming Using Subsurface Ni Dopants Open
CeO2–ZrO2 (CZO) nanoparticles (NPs) have applications in many catalytic reactions, such as methane dry reforming, due to their oxygen cycling ability. Ni doping has been shown to improve the catalytic activity and produces active sites for…
Effect of Moisture on Dopant Segregation in Solid Hosts Open
Transition metal-doped semiconductor materials are extensively employed for light harvesting and photocatalytic applications owing to their increased light absorption and charge mobility. Here, spatial tailoring of the Ni dopant in TiO2 na…
View article: Boosting charge collection efficiency via large-area free-standing Ag/ZnO core-shell nanowire array electrodes
Boosting charge collection efficiency via large-area free-standing Ag/ZnO core-shell nanowire array electrodes Open
Hybrid nanostructures, comprising of a metal core and a semiconductor shell layer, show great potential for a new generation of low-cost solar cells due to their unique electronic and optical properties. However, experimental results have …
Controlling the Spatial Direction of Hydrothermally Grown Rutile TiO2 Nanocrystals by the Orientation of Seed Crystals Open
Hydrothermally grown TiO2 nanorods are a key material for several electronic applications. Due to its anisotropic crystal structure, the electronic properties of this semiconductor depend on the crystallographic direction. Consequently, it…
View article: Metal oxide core shell nanostructures as building blocks for efficient light emission (SISGR)
Metal oxide core shell nanostructures as building blocks for efficient light emission (SISGR) Open
The objective of this research is to synthesize core-shell nano-structured metal oxide materials and investigate their structural, electronic and optical properties to understand the microscopic pathways governing the energy conversion pro…
View article: Uniform Large-Area Free-Standing Silver Nanowire Arrays on Transparent Conducting Substrates
Uniform Large-Area Free-Standing Silver Nanowire Arrays on Transparent Conducting Substrates Open
Arrays of silver nanowires have received increasing attention in a variety of applications such as surface-enhanced Raman scattering (SERS), plasmonic biosensing and electrode for photoelectric devices. However, until now, large scale fabr…