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Updated: May 13, 2026

Synthetic Methodology for Asymmetric Ferrocene Derived Bio-conjugate Systems via Solid Phase Resin-based Methodology
Published on: March 12, 2015
Constructing flexible sub-nanometer ferroelectric catalyst to overcome heterocatalytic kinetic barriers for enhanced
Rui Zhang1, Yuanfei Yao2, Lu Yang3
1Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, PR China.
Abstract:
Piezoelectric catalysis enhances therapeutic outcomes in nanocatalysis but is limited by intrinsic catalysis mechanism. This study employs sub-nanometer Hf0.5Zr0.5O2 (HZO) nanowires as a piezoelectric catalyst to address these challenges. Oxygen K-edge X-ray absorption spectroscopy and spherical aberration-corrected transmission electron microscopy reveal the orthorhombic phase (Pca21) in HZO nanowires. This structure imparts polymer-like flexibility to Hf0.5Zr0.5O2, improving its sensitivity to mechanical stress. Molecular dynamics and first-principles calculations demonstrate that ultrasonic stimulation increases the mobility of oxygen bridges, facilitating efficient ferroelectric polarization reversal. This mechanism breaks the "scaling relationship" between the low activation energy for reactant adsorption and the high activation energy for product desorption, enabling significant hydroxyl radical generation. Additionally, hydrogen produced during catalysis promotes pyroptosis, enhancing CD8+ T cell infiltration and reversing tumor immunosuppression. This research underscores the potential of sub-nanoscale ferroelectric materials in anti-tumor applications.
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