Non-noble-metallic Ni2P nanoparticles modified OV-BiOBr with boosting photoelectrochemical hydrogen evolution without sacrificial agent

Applied Catalysis B Environment and Energy, Journal Year: 2022, Volume and Issue: 325, P. 122341 - 122341

Published: Dec. 28, 2022

Language: Английский

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Novel Insight into Rechargeable Aluminum Batteries with Promising Selenium Sulfide@Carbon Nanofibers Cathode

Advanced Materials, Journal Year: 2022, Volume and Issue: 35(8)

Published: Dec. 8, 2022

Due to the unique electronic structure of aluminum ions (Al3+ ) with strong Coulombic interaction and complex bonding situation (simultaneously covalent/ionic bonds), traditional electrodes, mismatching orbital Al3+ , usually exhibit slow kinetic process inferior rechargeable batteries (RABs) performance. Herein, break confinement mismatch between electrode, a previously unexplored Se2.9 S5.1 -based cathode sufficient valence energy overlap easily accessible is potentially developed. Through this new strategy, encapsulated in multichannel carbon nanofibers free-standing exhibits high capacity 606 mAh g-1 at 50 mA rate-capacity (211 2.0 A ), robust stability (187 0.5 after 3,000 cycles), enhanced flexibility. Simultaneously, in/ex-situ characterizations also reveal mechanism Sex Sy RABs.

Language: Английский

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MXene‐Regulated Metal‐Oxide Interfaces with Modified Intermediate Configurations Realizing Nearly 100% CO₂ Electrocatalytic Conversion

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(35)

Published: July 5, 2023

Electrocatalytic CO2 reduction via renewable electricity provides a sustainable way to produce valued chemicals, while it suffers from low activity and selectivity. Herein, we constructed novel catalyst with unique Ti3 C2 Tx MXene-regulated Ag-ZnO interfaces, undercoordinated surface sites, as well mesoporous nanostructures. The designed Ag-ZnO/Ti3 achieves an outstanding conversion performance of nearly 100% CO Faraday efficiency high partial current density 22.59 mA cm-2 at -0.87 V versus reversible hydrogen electrode. electronic donation Ag up-shifted d-band center relative Fermi level within interfaces contributes the selectivity CO. is highly correlated dominated linear-bonded intermediate confirmed by in situ infrared spectroscopy. This work enlightens rational design metal-oxide regulation MXene for high-performance electrocatalysis beyond reduction.

Language: Английский

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Multifunctionalized Safe Separator Toward Practical Sodium‐Metal Batteries with High‐Performance under High Mass Loading

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(26)

Published: March 31, 2023

Abstract Introducing sodium as anode to develop metal batteries (SMBs) is a promising approach for improving the energy density of sodium‐ion batteries. However, fatal problems, such uncontrollable dendrite growth, unstable solid electrolyte interphase (SEI) in low‐cost carbonate‐based electrolytes, and serious safety issues, greatly impede practical applications. Here, multifunctionalized separator rationally designed, by coating PP (<25 µm) with solid‐state NASICON‐type fast ionic conductor layer (NZSP@PP) replace widely used thick glass fiber (>200 successfully solves all above first time creats high performance SMBs using Na 3 V 2 (PO 4 ) (NVP) cathodes pouch cell. The Na||NVP full cells can stably cycle over 1200 times capacity retention 80% at rate 10 C deliver specific 80 mAh g −1 even 30 C, indicating extraordinary fast‐charging characters. also 200 96.4% under NVP loading 10.7 mg cm −2 . Most importantly, SMB cell long‐life cycles well high‐temperature battery performance, which guarantees application.

Language: Английский

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Particulate metal chalcogenides for photocatalytic Z-scheme overall water splitting

Joule, Journal Year: 2023, Volume and Issue: 7(11), P. 2445 - 2467

Published: Oct. 30, 2023

Language: Английский

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