A5066466244- Electrocatalysts for Energy Conversion
- CO2 Reduction Techniques and Catalysts
- Advancements in Battery Materials
- Advanced battery technologies research
- Advanced Battery Materials and Technologies
- Magnetic and transport properties of perovskites and related materials
- Nanomaterials for catalytic reactions
- Fuel Cells and Related Materials
- Ammonia Synthesis and Nitrogen Reduction
- Advanced Photocatalysis Techniques
- Multiferroics and related materials
- Ferroelectric and Piezoelectric Materials
- Neural and Behavioral Psychology Studies
- Catalytic Processes in Materials Science
- Ionic liquids properties and applications
- Semiconductor materials and devices
- Heart Rate Variability and Autonomic Control
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Metal-Organic Frameworks: Synthesis and Applications
- MXene and MAX Phase Materials
- Supercapacitor Materials and Fabrication
- Perovskite Materials and Applications
- Molecular Junctions and Nanostructures
- Nanoporous metals and alloys
National Synchrotron Radiation Research Center
2022-2025
National Taiwan Normal University
2022-2024
Chung Yuan Christian University
2012-2020
Tunghai University
2019
Heteroatom-doping in metal-nitrogen-carbon single-atom catalysts (SACs) is considered a powerful strategy to promote the electrocatalytic CO2 reduction reaction (CO2 RR), but origin of enhanced catalytic activity still elusive. Here, we disclose that sulfur doping induces an obvious proton-feeding effect for RR. The model SAC catalyst with second-shell FeN4 (Fe1 -NSC) was verified by X-ray absorption spectroscopy and aberration-corrected scanning transmission electron microscopy. Fe1 -NSC...
Carbon dioxide electroreduction (CO2 RR) is a sustainable way of producing carbon-neutral fuels. Product selectivity in CO2 RR regulated by the adsorption energy reaction-intermediates. Here, we employ differential phase contrast-scanning transmission electron microscopy (DPC-STEM) to demonstrate that Sn heteroatoms on Ag catalyst generate very strong and atomically localized electric fields. In situ attenuated total reflection infrared spectroscopy (ATR-IR) results verified field enhances...
Abstract Alkaline anion‐exchange‐membrane water electrolyzers (AEMWEs) using earth‐abundant catalysts is a promising approach for the generation of green H 2 . However, AEMWEs with alkaline electrolytes suffer from poor performance at high current density compared to proton exchange membrane electrolyzers. Here, atomically dispersed Pt‐Ru dual sites co‐embedded in nanoporous nickel selenides (np/Pt 1 Ru ‐Ni 0.85 Se) are developed by rapid melt‐quenching achieve highly‐efficient hydrogen...
Abstract Electrocatalytic alkynes semi-hydrogenation to produce alkenes with high yield and Faradaic efficiency remains technically challenging because of kinetically favorable hydrogen evolution reaction over-hydrogenation. Here, we propose a hierarchically nanoporous Cu 50 Au alloy improve electrocatalytic performance toward alkynes. Using Operando X-ray absorption spectroscopy density functional theory calculations, find that modulate the electronic structure Cu, which could intrinsically...
Electrocatalytic nitrite reduction to the valuable ammonia is a green and sustainable alternative conventional Haber-Bosch method for synthesis, while activity selectivity production remains poor at low concentrations. Herein, we report nanoporous intermetallic single-atom alloy CuZn (np/ISAA-CuZn) catalyst with completely isolated Cu-Zn active-sites, which achieves neutral reaction remarkable NH3 Faradaic efficiency over 95% highest energy of ≈ 59.1% in wide potential range from −0.2 −0.8 V...
Abstract Li‐rich layered oxides (LRLO) exhibit significant potential for use in all‐solid‐state lithium batteries (ASSLBs) owing to their high capacities and wide range of operating voltages. However, the practical application LRLO ASSLBs is hindered by severe failure carrier transport at solid–solid interface, which subsequently limits electrochemical activity these batteries. Here, spatially asynchronous activation mechanism presented. A spectroscopic study extending from surface into bulk...
In oxygen reduction reaction to H
As the main fission products of nuclear power plants, radioactive iodine isotopes are great concern because their harm to public safety. In this work, a nanocomposite bismuth sulfide coated with electrospinning SiO2 nanofibers diameter about 280 nm nanostructure-based membranes (Bi2S3@SiO2) was successfully prepared dispose gaseous iodine. Results showed that adsorption capacity Bi2S3@SiO2 for can be up 1180 mg g–1, which is higher than commercial silver-exchanged zeolite (AgZ) and other...
Electrocatalytic reduction of CO
This work breaks the activity–stability trade-off of noble metal-free OER electrocatalysts and yields a record performance in acid.
A nanoporous Pd 50 Ir alloy is developed for water splitting bifunctional electrocatalysis by metallurgical design and electrochemical dealloying method, outperforming the state-of-the-art catalysts, commercial Pt/C Ir/C under 0.5 M H 2 SO 4 .
Although proton exchange membrane water electrolyzers (PEMWE) are considered as a promising technique for green hydrogen production, it remains crucial to develop intrinsically effective oxygen evolution reaction (OER) electrocatalysts with high activity and durability. Here, flexible self-supporting electrode nanoporous Ir/Ta2O5 electroactive surface is reported acidic OER via dealloying IrTaCoB metallic glass ribbons. The catalyst exhibits excellent electrocatalytic performance an...
Anionic redox is an effective way to increase the capacity of cathode materials. Na2Mn3O7 [Na4/7[Mn6/7□1/7]O2, □ for transition metal (TM) vacancies] with native and ordered TM vacancies can conduct a reversible oxygen be promising high-energy material sodium-ion batteries (SIBs). However, its phase at low potentials (∼1.5 V vs Na+/Na) induces potential decays. Herein, magnesium (Mg) doped on form disordered Mn/Mg/□ arrangement in layer. The Mg substitution suppresses oxidation ∼4.2 by...
Abstract Alcohol electrooxidation is pivotal for a sustainable energy economy. However, designing efficient electrocatalysts this process still formidable challenge. Herein, palladium–selenium nanowires featuring distinct crystal phases: monoclinic Pd 7 Se 2 and tetragonal 4.5 ethylene glycol reaction (EGOR) are synthesized. Notably, the supported ( m ‐Pd NWs/C) exhibit superior EGOR activity, achieving mass activity (MA) specific (SA) of 10.4 A mg −1 (18.7 mA cm −2 ), which 8.0 (6.7) (8.2)...
A recent meta-analysis has shown inconclusive results on the effectiveness of traditional electroencephalography (EEG) neurofeedback training (NFT) protocols in changing EEG activity and improving sports performance. To enhance NFT protocols, we explored a new approach to NFT, namely function-specific instruction (FSI) approach. The basic tenet underpinning effective verbal is induce mental states as instructions consider meaning brainwave function target region power magnitude. This study...
Li-rich layered oxide (LLO) cathode materials with mixed cationic and anionic redox reactions display much higher specific capacity than other traditional materials. However, the practical of LLO during first cycle in sulfide all-solid-state lithium-ion batteries (ASSLBs) is extremely low. Herein, contribution each reaction charging process qualitatively quantitatively analyzed by comprehensive electrochemical structural measurements. The results demonstrate that LiTMO2 (TM = Ni, Co, Mn)...
P2-type Mn-based layered oxides are among the most prevalent cathodes for sodium-ion batteries (SIBs) owing to their low cost, resource abundance, and high theoretical specific capacity. However, they usually suffer from Jahn-Teller (J-T) distortion high-spin Mn3+ poor cycling stability, resulting in rapid degradation of structural electrochemical properties. Herein, a stable oxide is realized through local construction strategy by introducing high-valence Ru4+ overcome these issues. It has...
Frustrated magnets offer a plethora of exotic magnetic ground states, including quantum spin liquids (QSLs), in which enhanced fluctuations prevent long-range ordering the strongly correlated spins down to lowest temperature. Here we have investigated trimer based mixed valence hexagonal rhodate <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mrow><a:msub><a:mi>Ba</a:mi><a:mn>4</a:mn></a:msub><a:msub><a:mi>NbRh</a:mi><a:mn>3</a:mn></a:msub><a:msub><a:mi...
Abstract Electrocatalytic nitrate reduction to ammonia (NO 3 RR) is an attractive green route generate valuable and remove nitrates in industrial processes. However, under the intense competition of hydrogen evolution reactions (HER), it a key challenge improve selectivity reduce energy consumption reaction. Herein, unique amorphous RuCo Bimetallenes confined on Ti C 2 T x ‐MXene (RuCo/Ti ) reported as highly efficient NO RR catalyst, showing remarkable Faradaic efficiency for 94.7% at −0.2...
Developing efficient electrocatalysts to accelerate the sluggish conversion of lithium polysulfides (LiPSs) is paramount importance for improving performances lithium–sulfur (Li–S) batteries. However, a consensus has not yet been reached on in situ evolution as well real catalytic active sites. Herein, defective MnV2O6 (D-MVO) designed precatalyst toward LiPSs' adsorption and conversion. We reveal that introduction surface V defects can effectively sulfurization D-MVO during electrochemical...
Abstract Acidic CO 2 electroreduction reaction (CO RR) garners significant attention as a promising approach for cutting carbon density, it effectively mitigates loss by suppressing carbonate species formation. Unfortunately, achieving efficient multi‐carbon products (C 2+ ) production in acidic media remains challenging due to two main limitations: weak adsorption on Cu sites and competitive H* caused the high concentration protons (H + ). To overcome these challenges,...
A series of metal coordination polymers, [Li2(OBA)] (1), [Na2(OBA)(H2O)] (2), [K(HOBA)] (3), [Rb(HOBA)] (4), [Cs(HOBA)] (5), [Mg(OBA)(H2O)2] (6), [Ca(OBA)(H2O)] (7), and [Sr(OBA)(H2O)] (8) (H2OBA = 4,4′-oxybisbenzoic acid), was synthesized from alkali alkaline-earth salts acid by solvothermal reactions. Single crystal X-ray structure analysis revealed that compounds 1–5 7–8 are three-dimensional while complex 6 has a layered structure. The inorganic motifs, ranging discrete octahedra...