Yu‐Cheng Shao
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View article: In-situ total X-ray scattering reveals the structural evolution of SrIrO3 during the oxygen evolution reaction
In-situ total X-ray scattering reveals the structural evolution of SrIrO3 during the oxygen evolution reaction Open
Despite the importance of oxygen evolution reaction (OER) catalysts in energy conversion applications, the time-resolved dynamics of their amorphous phases remain elusive. Understanding the structural evolution of OER catalysts is pivotal …
View article: Electronic energy scales of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>CrX</mml:mi> <mml:mn>3</mml:mn> </mml:msub> </mml:math> ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>X</mml:mi> </mml:mrow> </mml:math> = Cl, Br, and I) using high-resolution x-ray scattering
Electronic energy scales of ( = Cl, Br, and I) using high-resolution x-ray scattering Open
Chromium trihalides Cr X 3 ( X = Cl , Br, and I) have recently become a focal point of research due to their intriguing low-temperature, layer-dependent magnetic properties that can be manipulated by external stimuli. This makes …
View article: Surface Reconstruction‐Free Stability Achieving Highly Anticorrosive Seawater Splitting
Surface Reconstruction‐Free Stability Achieving Highly Anticorrosive Seawater Splitting Open
Surface reconstruction, although often associated with enhanced activity through the lattice oxygen mechanism (LOM), can expose vulnerable sites that accelerate chloride‐induced corrosion. It is demonstrated that a silver and cerium co‐dop…
View article: Activation of Anionic Redox for Stoichiometric and Li-Excess Metal Sulfides through Structural Disordering: Joint Experimental and Theoretical Study
Activation of Anionic Redox for Stoichiometric and Li-Excess Metal Sulfides through Structural Disordering: Joint Experimental and Theoretical Study Open
Extensive research efforts have been dedicated to Li-excess compounds with anionic redox reaction as potential high-capacity positive electrode materials for Li-ion battery applications. The origin of activation on anionic redox is still u…
View article: Resolving Dynamic Behavior of Electrocatalysts via Advances of Operando X‐Ray Absorption Spectroscopies: Potential Artifacts and Practical Guidelines
Resolving Dynamic Behavior of Electrocatalysts via Advances of Operando X‐Ray Absorption Spectroscopies: Potential Artifacts and Practical Guidelines Open
Although numerous techniques are developed to enable real‐time understanding of dynamic interactions at the solid–liquid interface during electrochemical reactions, further progress in the development of these methods over the last several…
View article: Monitoring chalcogenide ions–guided in situ transform active sites of tailored bismuth electrocatalysts for CO <sub>2</sub> reduction to formate
Monitoring chalcogenide ions–guided in situ transform active sites of tailored bismuth electrocatalysts for CO <sub>2</sub> reduction to formate Open
Although bismuth catalysts enable accelerated electrochemical CO 2 -to-formate conversion, the intrinsic active sites and forming mechanisms under operating conditions remain elusive. Herein, we prepared Bi 2 O 2 NCN, Bi 2 O 3 , and Bi 2 O…
View article: Bidirectional magnetization switching of a ferrimagnetic insulator with monochiral molecules
Bidirectional magnetization switching of a ferrimagnetic insulator with monochiral molecules Open
Recent studies have demonstrated that magnetization switching in ferromagnets can be achieved through adsorbing chiral molecules on the surface without the need for current or external magnetic fields, offering a low-power mechanism for ap…
View article: A Hydrazine‒Water Galvanic Cell‐Inspired Self‐Powered High‐Rate Hydrogen Production via Overall Hydrazine Electrosplitting
A Hydrazine‒Water Galvanic Cell‐Inspired Self‐Powered High‐Rate Hydrogen Production via Overall Hydrazine Electrosplitting Open
Exploring advanced electrolysis techniques for attaining scene‐adaptive and on‐site green H 2 production is an imperative matter of utmost practical significance but grand challenge remains. Herein, drawn inspiration from a spontaneous hyd…
View article: Influence of Fe Doping on the Electrochromic Properties of Co-sputtered V<sub>2</sub>O<sub>5</sub> Thin Films
Influence of Fe Doping on the Electrochromic Properties of Co-sputtered V<sub>2</sub>O<sub>5</sub> Thin Films Open
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View article: Tuning of Oxygen Vacancies in Co<sub>3</sub>O<sub>4</sub> Electrocatalyst for Effectiveness in Urea Oxidation and Water Splitting
Tuning of Oxygen Vacancies in Co<sub>3</sub>O<sub>4</sub> Electrocatalyst for Effectiveness in Urea Oxidation and Water Splitting Open
The development of an excellent multifunctional electrocatalyst that is based on non‐precious metal is critical for improving the electrochemical processes of the hydrogen evolution reaction (HER), the oxygen evolution reaction (OER), and …
View article: Unraveling the Mn $L_3$-edge RIXS spectrum of lightly manganese doped Sr$_{3}$Ru$_{2}$O$_{7}$
Unraveling the Mn $L_3$-edge RIXS spectrum of lightly manganese doped Sr$_{3}$Ru$_{2}$O$_{7}$ Open
Resonant inelastic x-ray scattering (RIXS) experiment was performed at the Mn $L_3$ edge. A 10 $\%$ Mn-doped Sr$_{3}$Ru$_{2}$O$_{7}$ compound, where the Mn$^{3+}$ ions are in the 3$d^4$ state, were probed for $dd$ excitations. The dilute d…
View article: Precise dd excitations and commensurate intersite Coulomb interactions in the dissimilar cuprate YBa_2Cu_3O_(7-x) and La_(2-x)Sr_xCuO_4
Precise dd excitations and commensurate intersite Coulomb interactions in the dissimilar cuprate YBa_2Cu_3O_(7-x) and La_(2-x)Sr_xCuO_4 Open
Using high-resolution extreme ultraviolet resonant inelastic X-ray scattering (EUVRIXS) spectroscopy at Cu M-edge, we observed the doping dependent spectral shifts of inter-orbital (dd) excitations of YBa_2Cu_3O_(7-x) and La_(2-x)Sr_xCuO_4…
View article: Presence of Delocalized Ti 3d Electrons in Ultrathin Single-Crystal SrTiO<sub>3</sub>
Presence of Delocalized Ti 3d Electrons in Ultrathin Single-Crystal SrTiO<sub>3</sub> Open
Strontium titanate (STO), with a wide spectrum of emergent properties such as ferroelectricity and superconductivity, has received significant attention in the community of strongly correlated materials. In the strain-free STO film grown o…
View article: Electronic surface reconstruction of TiO2 nanocrystals revealed by resonant inelastic x-ray scattering
Electronic surface reconstruction of TiO2 nanocrystals revealed by resonant inelastic x-ray scattering Open
The identification of lattice multiphases in TiO2 nanocrystals is studied by high resolution transmission electron microscope and electron diffraction patterns. Based on the spectroscopic analysis using soft x-ray absorption and resonant i…
View article: Interface Carriers and Enhanced Electron‐Phonon Coupling Effect in Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> Heterostructure Revealed by Resonant Inelastic Soft X‐Ray Scattering
Interface Carriers and Enhanced Electron‐Phonon Coupling Effect in Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> Heterostructure Revealed by Resonant Inelastic Soft X‐Ray Scattering Open
The electronic structure and the electron‐phonon couplings in a novel mass‐production‐compatible Al 2 O 3 /TiO 2 2D electron system (2DES) are investigated using resonant inelastic soft X‐ray scattering. The experimental data from the samp…
View article: Realization of Electron Antidoping by Modulating the Breathing Distortion in BaBiO<sub>3</sub>
Realization of Electron Antidoping by Modulating the Breathing Distortion in BaBiO<sub>3</sub> Open
The recent proposal of antidoping scheme breaks new ground in conceiving conversely functional materials and devices; yet, the few available examples belong to the correlated electron systems. Here, we demonstrate both theoretically and ex…
View article: Spectroscopic characterization of electronic structures of ultra-thin single crystal La0.7Sr0.3MnO3
Spectroscopic characterization of electronic structures of ultra-thin single crystal La0.7Sr0.3MnO3 Open
We have successfully fabricated high quality single crystalline La 0.7 Sr 0.3 MnO 3 (LSMO) film in the freestanding form that can be transferred onto silicon wafer and copper mesh support. Using soft x-ray absorption (XAS) and resonant ine…
View article: Spectroscopic Determination of Key Energy Scales for the Base Hamiltonian of Chromium Trihalides
Spectroscopic Determination of Key Energy Scales for the Base Hamiltonian of Chromium Trihalides Open
The van der Waals (vdW) chromium trihalides (CrX3) exhibit field-tunable, two-dimensional magnetic orders that vary with the halogen species and the number of layers. Their magnetic ground states with proximity in energies are sensitive to…
View article: Realization of electron antidoping by modulating the breathing distortion in BaBiO3
Realization of electron antidoping by modulating the breathing distortion in BaBiO3 Open
The recent proposal of antidoping scheme breaks new ground in conceiving conversely functional materials and devices, yet the few available examples belong to the correlated electron systems. Here we demonstrate both theoretically and expe…
View article: Two-dimensional electron systems in perovskite oxide heterostructures: Role of the polarity-induced substitutional defects
Two-dimensional electron systems in perovskite oxide heterostructures: Role of the polarity-induced substitutional defects Open
The discovery of a two-dimensional electron system (2DES) at the interfaces of perovskite oxides such as LaAlO3 and SrTiO3 has motivated enormous efforts in engineering interfacial functionalities with this type of oxide heterostructures. …
View article: Disparate Exciton-Phonon Couplings for Zone-Center and Boundary Phonons in Solid-State Graphite
Disparate Exciton-Phonon Couplings for Zone-Center and Boundary Phonons in Solid-State Graphite Open
The exciton-phonon coupling in highly oriented pyrolytic graphite is studied using resonant inelastic x-ray scattering (RIXS) spectroscopy. With ∼70 meV energy resolution, multiple low energy excitations associated with coupling to phonons…