A5016903963- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Conducting polymers and applications
- Electrochemical Analysis and Applications
- Perovskite Materials and Applications
- Corrosion Behavior and Inhibition
- Membrane-based Ion Separation Techniques
- Catalytic Processes in Materials Science
- Organic Electronics and Photovoltaics
- Concrete Corrosion and Durability
- Advancements in Battery Materials
- Metal-Organic Frameworks: Synthesis and Applications
- Concrete and Cement Materials Research
- Advancements in Solid Oxide Fuel Cells
- Advanced Battery Materials and Technologies
- Membrane Separation Technologies
- MXene and MAX Phase Materials
- Advanced Sensor and Energy Harvesting Materials
- Liver Disease Diagnosis and Treatment
- Carbon Dioxide Capture Technologies
- Advanced Memory and Neural Computing
- Ferroelectric and Piezoelectric Materials
- Hybrid Renewable Energy Systems
- Smart Materials for Construction
Paul Scherrer Institute
2022-2025
Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)
2021-2024
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)
2021-2024
Harbin Institute of Technology
2016-2024
Shenzhen University
2022-2024
Guangzhou University of Chinese Medicine
2023
South China University of Technology
2020-2022
University of Wisconsin–Madison
2020-2021
Madison Group (United States)
2020
Duke Kunshan University
2020
Abstract Developing efficient and stable earth-abundant electrocatalysts for acidic oxygen evolution reaction is the bottleneck water splitting using proton exchange membrane electrolyzers. Here, we show that nanocrystalline CeO 2 in a Co 3 O 4 /CeO nanocomposite can modify redox properties of enhances its intrinsic activity, combine electrochemical structural characterizations including kinetic isotope effect, pH- temperature-dependence, situ Raman ex X-ray absorption spectroscopy analyses...
Replacement of rare and precious metal catalysts with low-cost earth-abundant ones is currently among the major goals sustainable chemistry. Herein, we report synthesis S, N dual-doped graphene-like carbon nanosheets via a simple pyrolysis mixture melamine dibenzyl sulfide as efficient metal-free electrocatalysts for oxygen reduction reaction (ORR). The show enhanced activity toward ORR compared mono-doped counterparts, excellent durability in contrast to conventional Pt/C electrocatalyst...
Earth-abundant CoSe<sub>2</sub> outperforms noble metal catalysts for the selective 2e<sup>−</sup> ORR in acidic solution, enabling stable bulk electrosynthesis of practically useful 547 ppm H<sub>2</sub>O<sub>2</sub> and effective electro-Fenton degradation an organic pollutant.
Developing efficient and robust Earth-abundant hydrogen evolution reaction (HER) catalysts is crucial for the scalable sustainable production of hydrogen. This study builds on promising concept oxide/metal nanocomposites, namely NiO/Ni, by incorporating another metal (in this case, Mo) into NiO to tune adsorption energy (H). Theoretical experimental approaches are combined design Mo-NiO/Ni nanocomposites HER in alkaline media. The incorporation Mo weakens H, favoring its transfer nearby Ni...
Developing earth-abundant and highly effective electrocatalysts for hydrogen evolution reaction (HER) is a prerequisite the upcoming energy society. Two-dimensional (2D) high-entropy metal phosphorus trichalcogenides (MPCh3) have advantages of both near-continuous adsorption energies alloys (HEAs) large specific surface area 2D materials, which are excellent catalytic platforms. As typical catalyst, Co0.6(VMnNiZn)0.4PS3 nanosheets with high-concentration active sites successfully...
Iridium-based perovskites show promising catalytic activity for oxygen evolution reaction (OER) in acid media, but the iridium mass remains low and active-layer structures have not been identified. Here, we report highly active 1 nm IrOx particles anchored on 9R-BaIrO3 (IrOx/9R-BaIrO3) that are directly synthesized by solution calcination followed strong treatment first time. The developed IrOx/9R-BaIrO3 catalyst delivers a high (168 A gIr-1), about 16 times higher than of benchmark acidic...
Abstract Co-based catalysts are promising candidates to replace Ir/Ru-based oxides for oxygen evolution reaction (OER) catalysis in an acidic environment. However, both the mechanism and active species under conditions remain unclear. In this study, by combining surface-sensitive soft X-ray absorption spectroscopy characterization with electrochemical analysis, we discover that OER activity of determined their surface oxidation/spin state. Surfaces composed only high-spin Co II found be not...
Abstract CeO 2 greatly enhances the electrocatalytic oxygen evolution reaction (OER) activity of CoO x , though enhancement mechanism beyond this synergy is yet to be understood. Here, operando hard X‐ray absorption spectroscopy (hXAS) applied monitor Co K edge and Ce L 3 in /CeO shed light on oxidation states during OER. In addition, ex situ soft XAS (sXAS) characterizations provide information irreversible surface‐specific transformations as well O edge. Combining spectroscopic with...
Spinel-type oxides have been found to be active electrocatalysts for OER. However, their semiconductor character severely limits catalytic performance. Herein, we report a facile solvothermal pathway the synthesis of spinel-type NixFe3–xO4 oxides/Ni metal nanocomposites. The good electrical contact between and oxide interface well-tuned compositions spinel are crucial achieve better OER Specifically, NixFe3–xO4/Ni nanocomposite sample prepared from precursor ratio y = 0.15 [y Fe/(Fe + Ni)]...
The functional group is the main body in modifying perovskite film, and different groups lead to modification effects. Here, several conjugated triazine-based small molecules such as melamine (Cy-NH2), cyanuric acid (Cy-OH), fluoride (Cy-F), chloride (Cy-Cl), thiocyanuric (Cy-SH) are used modify films by mixing antisolvent. crystallizations of perovskites optimized these molecules, with low trap density obtained forming Lewis adducts (Pb2+ electron-donating including -NH2, C═N-, C═O; I-...
Addressing critical challenges in enhancing the oxidative stability and proton conductivity of high-temperature exchange membranes (HT-PEMs) is pivotal for their commercial viability. This study uncovers significant capacity multiwalled carbon nanotubes (MWNTs) to absorb a substantial amount phosphoric acid (PA). The investigation focuses on incorporating long-range ordered hollow MWNTs into self-cross-linked fluorenone-containing polybenzimidazole (FPBI) membranes. absorbed PA within FPBI...
Abstract Doping and compositing are two universal design strategies used to engineer the electronic state of a material mitigate its disadvantages. These extensively applied efficient electrocatalysts for water splitting. Using cobalt oxide (CoO) as model catalyst, it is proven that oxygen evolution reaction (OER) performance can be progressively improved, first by Fe‐doping form Fe‐CoO solid solution, further addition CeO 2 produce Fe‐CoO/CeO composite. X‐ray absorption spectroscopy (XAS)...
Constructing hollow coordination polymers such as metal-organic frameworks, and Prussian blue analogs (PBAs) to fulfill diverse applications still remains a great challenge requires extensive investigations. Here, we report straightforward one-step strategy construct bimetallic CoFe-PBA. The morphology evolution process is carefully investigated function of aging time relative reactant ratio, proving that the Co2+-to-[Fe(CN)6]3– (Co/Fe) ratio crucial for obtaining structure, which revealed...
We examined the effect of learning English as a foreign language in early childhood on children's later and Chinese achievement attitude toward mainland China. A total 892 children were divided into two groups according to whether they had any experience before entered elementary school. To reduce self-selection bias experience, we employed propensity score matching (PSM) coarsened exact (CEM) techniques generated balanced samples based demographic, parent-child interactional socio-economic...
The phase-junction engineering of CoSe 2 on SiC NWs boosts its performance for efficient sodium/potassium storage.
On-site electrochemical production of hydrogen peroxide (H2O2), an oxidant and disinfectant with growing demand, could be realized through the selective two-electron oxygen reduction reaction (2e– ORR), but widespread adoption this method depends on robust efficient electrocatalysts. Current catalysts have been limited by cost or toxicity lack well-defined structures that can facilitate systematic tuning activity selectivity. Here, we demonstrate a series CuCo2–xNixS4 (0 ≤ x 1.2) thiospinel...
Nucleotide analogs treatment can reverse liver fibrosis in chronic hepatitis B (CHB). However, it has limited effect on resolution patients with CHB, particularly preventing progression to hepatocellular carcinoma (HCC). Ruangan granule (RG), a Chinese herbal formula, proven produce therapeutic against animal experiment. Thus, we aimed evaluate the of our formula (RG) combined entecavir (ETV) advanced fibrosis/early cirrhosis from CHB. A total 240 CHB histologically confirmed 12 centers were...
Abstract Nickel‐based double perovskites AA′BB′O 6 are an underexplored class of oxygen evolution reaction (OER) catalysts, in which B‐site substitution is used to tune electronic and structural properties. BaSrNiWO , with a comprised alternating Ni W, exhibits high activity, attributed the highly OER active surface phase. The redox transformation 2+ (3d 8 ) 3+ 7 combined partial W dissolution into electrolyte from linear Ni(3d)‐O(2p)‐W(5d) chains drives situ reconstruction amorphized,...