A5080673905- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Advanced Photocatalysis Techniques
- Supercapacitor Materials and Fabrication
- Catalytic Processes in Materials Science
- Electrochemical Analysis and Applications
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Advanced Memory and Neural Computing
- Perovskite Materials and Applications
- MXene and MAX Phase Materials
- Chalcogenide Semiconductor Thin Films
- Gas Sensing Nanomaterials and Sensors
- Nanomaterials for catalytic reactions
- Copper-based nanomaterials and applications
- Ammonia Synthesis and Nitrogen Reduction
- Semiconductor materials and devices
Jinan University
2018-2025
Sun Yat-sen University
2015-2018
Guangxi University
2016
A porous MoO2 nanosheet as an active and stable bifunctional electrocatalyst for overall water splitting, is presented. It needs a cell voltage of only about 1.53 V to achieve current density 10 mA cm−2 maintains its activity at least 24 h in two-electrode configuration. As service our authors readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed may be re-organized online delivery, but not copy-edited or typeset. Technical support...
Highly active and stable electrocatalysts for oxygen evolution reaction (OER) are required industrial hydrogen production. Herein, we report Mo Fe modification as a synergistic effect to enhance both activity stability OER. The Mo- Fe-modified Ni(OH)2/NiOOH nanosheets needs an overpotential of only ∼280 mV achieve current density 100 mA cm–2 shows no evidence degradation after 50 h at such high density, outperforming all OER catalysts reported date. This work may provide options the design...
Based on the innovative strategy of EOR replacing OER, we originally proposed a “zinc–ethanol–air battery” achieving superior performance, which brought new research direction for metal–air batteries.
Abstract Spin engineering is a promising way to modulate the interaction between metal d‐orbital and intermediates thus enhance catalytic kinetics. Herein, an innovative strategy reported spin state of Co by regulating its coordinating environment. o‐c‐CoSe 2 ‐Ni prepared as pre‐catalyst, then in situ electrochemical impedance spectroscopy (EIS) Raman are employed prove phase transition, CoOOH/Co 3 O 4 formed on surface active sites. In hybrid water electrolysis, voltage has negative shift,...
The nanoflower-like MoO<sub>2</sub> has been synthesized and the material shows high stability activity toward hydrogen evolution with an onset potential of almost 0V <italic>versus</italic> reversible electrode (RHE).
Single-crystalline titanium nitride nanowires have been directly synthesized by a novel chemical vapor deposition method and used as efficient catalysts for hydrogen evolution reaction the first time.
3D porous MoNi<sub>4</sub> networks annealed at 450 °C need only ∼1.58 V to achieve 10 mA cm<sup>−2</sup> for overall water splitting and exhibit excellent stability. A two-electrode device split with as bifunctional electrocatalysts can be driven by a single AA battery (1.5 V).
Development of non-noble metal electrocatalysts for hydrogen evolution reaction (HER) and oxidation (HOR) in acid is a great challenge the development polymer electrolyte membrane water electrolysis (PEMWE) fuel cells (PEMFC). Here, we report an efficient strategy modulating electron density MoO2 by Ni doping to accelerate HER HOR acid. This particularly important PEMWE, PEMFC, regenerative cells. X-ray absorption spectroscopy demonstrates that doped replacing Mo atoms MoO2. Then can lead...
N and F dual doped porous graphene nanosheets (NFPGNS).
Abstract The development of alkaline polymer electrolyte fuel cells and water electrolysis requires nonprecious metal catalysts for the hydrogen oxidation reaction (HOR) evolution (HER). Herein, it is reported a phase‐separated Mo–Ni alloy (PS‐MoNi) that composed Mo embedded Ni nanoparticles. PS‐MoNi shows excellent electrode activity with high exchange current density (−4.883 mA cm −2 ), which comparable to highest value non‐noble catalysts. Moreover, amorphous has better structural...
Aqueous zinc-ion batteries are regarded as one of the new promising rechargeable batteries. However, serious Zn dendrite growth causes short-circuit issues in Herein, we report that arginine (Arg), a cationic surfactant electrolyte additive, can inhibit irregular and nonplanar induce uniform deposition. It shows long cycle life (515 h) Zn/Zn cells containing Arg, which is ∼10 times longer than with no additive. The hydrolysis Arg produces cations (Arg+), will be preferentially adsorbed on...
It is a good idea for efficient production of hydrogen to use ethanol oxidation reaction (EOR) in place oxygen evolution (OER) water electrolysis process. Ni-based non-precious electrocatalysts are widely used the conversion acetic acid. Here, different selenide heterostructures (NiCoSe, NiFeSe, and NiCuSe) prepared which Ni sites regulated by transition metal. The valence state NiCuSe < NiCoSe NiFeSe three heterojunctions. shows optimized charge distribution outstanding catalytic activity....
This work describes a non-precious metal-based electrocatalyst that porous WO<sub>2</sub>hexahedral networks supported on Ni foam possess remarkably electrochemical performance for HER, OER, and full water-splitting by simple two-step synthesis.
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTHigh-Quality and Deeply Excavated Pt3Co Nanocubes as Efficient Catalysts for Liquid Fuel ElectrooxidationHongyu Du†, Shuiping Luo†, Kai Wang†, Min Tang†, Rinrada Sriphathoorat†, Yanshuo Jin†, Pei Kang Shen*†§View Author Information† School of Physics, Materials Science Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China§ Collaborative Innovation Center Sustainable Energy Materials, Guangxi Nanning 530004, China*(P.K.S.) E-mail:...
Transition metal nitrides and elemental doping are effective methods to enhance the catalytic activity of hydrogen evolution reaction (HER) at a high current density. Herein, Ni-W2N@NF was synthesized exhibit excellent HER performance in an alkaline environment. Not only theoretical but also experimental analyses prove that Ni enters W2N lattice form substitutional doping. Ni-doped optimizes free energy adsorption hydroxide adsorption. Thus, kinetics accelerated. Therefore, achieved...
Abstract Designing bifunctional low‐cost photo‐assisted electrocatalysts for converting solar and electric energy into hydrogen remains a huge challenge. Herein, heterojunction (Fe cluster modified Co 9 S 8 loaded on carbon nanotubes, ‐Fe@CNT) both evolution reaction (HER) oxygen (OER) is demonstrated. Benefiting from the good electronic conductivity spatial confinement of skeleton, as well structure regulation Fe cluster, ‐Fe@CNT exhibits excellent catalytic performance with low...
Abstract To overcome the low efficiency of overall water splitting, highly effective and stable catalysts are in urgent need, especially for anode oxygen evolution reaction (OER). In this case, nickel selenides appear as good candidates to catalyze OER other substitutable anodic reactions due their high electronic conductivity easily tunable structure meet optimized adsorption ability. Herein, an interesting phase transition from hexagonal NiSe (H‐NiSe) rhombohedral (R‐NiSe) induced by...
The large overpotential loss of the oxygen evolution reaction (OER) is a major obstacle restricting wide commercial application water-splitting devices.