Asymmetric Single‐Unit‐Cell Layer Enriching Polar Inherent Hydroxyls Eliminates Interlayer Electric Field Shielding Effect and In Situ Self‐Polarize for Piezocatalytic Water Splitting

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

Abstract Piezocatalytic two‐electron water splitting into spontaneously isolated H 2 and O shows huge prospects in meeting industrial requirements. Herein, asymmetric single‐unit‐cell Bi (OH)(NO 3 ) monolayer (BON‐M) with superb force‐sensitivity are developed for pure seawater dissociation. The formation of a structure allows sufficient exposure polar inherent hydroxyls eliminates the interlayer electric field screening induced by hydrogen bonding between [Bi OH] slices [NO ] layers, resulting larger piezoelectricity strengthened internal field. It also benefits surface charge carrier decoupling renders more favorable molecules adsorption * desorption. Particularly, mechanical strain can induce situ self‐polarization BON‐M, which further enhances intensity reduces energy barriers desorption key intermediate OH formation, facilitating to kinetically thermodynamically. An exceptional piezocatalytic production rate up 2071.05 970.27 µmol g −1 h is delivered BON‐M from water. accumulates output 12 429.68 within 8 splitting, along mechanical‐to‐hydrogen efficiency 0.15%. This work develops an effective strategy exploiting high‐performance piezocatalyst building ultrafine nanostructure enriched groups on surface.

Язык: Английский

Unprecedented stacking-dependent piezoluminescence enhancement in atomically precise superatomic gold nanoclusters

Science Advances, Год журнала: 2025, Номер 11(22)

Опубликована: Май 30, 2025

Deciphering the structure-property relationship between cluster stacking and high-efficiency luminescence of metal nanoclusters is crucial for designing synthesizing high-performance light-emitting materials devices. Here, we successfully synthesized two polymorphic gold (Au 8 -C Au -P) investigated their stacking-dependent piezoluminescence based on hydrostatic pressure. Under compression, exhibits notable enhancement. However, -P presents monotonic quenching. High-pressure structural characterizations confirm existence anisotropic compression in -P. high pressure, columnar-stacked shrinks faster along a axis, increasing aspect ratio (AR) fusiform core. layered compressed c reducing AR leading to flatter femtosecond transient absorption, time-resolved photoluminescence, Raman spectra collaboratively that differentiated notably suppresses nonradiative loss caused by low-frequency vibrations core, which responsible enhancement -C.

Язык: Английский

Mn⁴⁺-Activated Inorganic Phosphor Zn₃Ga₂GeO₈: A High-Sensitivity and Broad-Range Pressure Sensor Material for Optical Manometry

The Journal of Physical Chemistry C, Год журнала: 2024, Номер 128(39), С. 16791 - 16796

Опубликована: Сен. 23, 2024

Язык: Английский