Polarisation tuneable piezo-catalytic activity of Nb-doped PZT with low Curie temperature for efficient CO<sub>2</sub> reduction and H<sub>2</sub> generation

Zhang, Yan; Phuong, Pham T. T.; Duy, Nguyen Phuc Hoang; Roake, Eleanor; Khanbareh, Hamideh; Hopkins, Margaret; Zhou, Xuefan; Zhang, Dou; Zhou, Kechao; Bowen, Chris

doi:10.1039/d1na00013f

Cited by 49 publications

(33 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Piezocatalytic Driven CO 2 Reduction: Piezocatalytic CO 2 reduction can be a by-product of piezocatalytic water splitting. Zhang et al [208] reported an efficient CO 2 reduction based on Nb doped Pb 0.99 Zr 0.95 Ti 0.05 Nb 0.02 O 3 (PZTN) (Figure 52a). The Nb doping can tune the T C to close to room temperature, [209] which gives rise to high piezoelectricity in order to trigger the reduction of CO 2 .…”

Section: Co 2 Reductionmentioning

confidence: 99%

See 1 more Smart Citation

Engineering the Defects and Microstructures in Ferroelectrics for Enhanced/Novel Properties: An Emerging Way to Cope with Energy Crisis and Environmental Pollution

et al. 2022

View full text Add to dashboard Cite

In the past century, ferroelectrics are well known in electroceramics and microelectronics for their unique ferroelectric, piezoelectric, pyroelectric, and photovoltaic effects. Nowadays, the advances in understanding and tuning of these properties have greatly promoted a broader application potential especially in energy and environmental fields, by harvesting solar, mechanical, and heat energies. For example, high piezoelectricity and high pyroelectricity can be designed by defect or microstructure engineering for piezo‐ and pyro‐catalyst, respectively. Moreover, highly piezoelectric and broadband (UV–Vis–NIR) light‐responsive ferroelectrics can be designed via defect engineering, giving rise to a new concept of photoferroelectrics for efficient photocatalysis, piezocatalysis, pyrocatalysis, and related cocatalysis. This article first summarizes the recent developments in ferroelectrics in terms of piezoelectricity, pyroelectricity, and photovoltaic effects based on defect and microstructure engineering. Then, the potential applications in energy generation (i.e., photovoltaic effect, H2 generation, and self‐powered multisource energy harvesting and signal sensing) and environmental protection (i.e., photo‐piezo‐pyro‐ cocatalytic dye degradation and CO2 reduction) are reviewed. Finally, the outlook and challenges are discussed. This article not only covers an overview of the state‐of‐art advances of ferroelectrics, but also prospects their applications in coping with energy crisis and environmental pollution.

show abstract

Section: Co 2 Reductionmentioning

confidence: 99%

mentioning

confidence: 99%

Engineering the Defects and Microstructures in Ferroelectrics for Enhanced/Novel Properties: An Emerging Way to Cope with Energy Crisis and Environmental Pollution

et al. 2022

View full text Add to dashboard Cite

show abstract

“…electric potential, which provides an alternative approach to determine the piezopotential amplitude of particles. [39] Here, V represents the piezopotential, d ij is the piezoelectric coefficient, e r is relative permittivity, e 0 is the electrical permittivity of the free space, s is the loading stress,and w is the width of the piezoelectric particle.…”

Section: Methodsmentioning

confidence: 99%

“…Recently, a theoretical equation [Eq. 3] was introduced to calculate particle piezoelectric potential, which provides an alternative approach to determine the piezopotential amplitude of particles [39]

true V = (d_{ij} / ϵ_{r} ϵ_{0}) σ w

…”

Section: Screening Charge Effectmentioning

confidence: 99%

The Mechanism of Piezocatalysis: Energy Band Theory or Screening Charge Effect?

Wang

Chen

et al. 2021

Angewandte Chemie

View full text Add to dashboard Cite

Piezocatalysis, a newly emerging catalysis technology that relies on the piezopotential and piezoelectric properties of the catalysts, is attracting unprecedented research enthusiasm for applications in energy conversion, organic synthesis, and environmental remediation. Despite the rapid development in the past three years, the mechanism of piezocatalysis is still under debate. A fundamental understanding of the working principles of this technology should enable the future design and optimization of piezocatalysts. Herein, we provide an overview of the two popular theories used to explain the observed piezocatalysis: energy band theory and screening charge effect. A comprehensive discussion and clarification of the differences, relevance, evidence, and contradiction of the two mechanisms are provided. Finally, challenges and perspectives for future mechanistic studies are highlighted. Hopefully, this Review can help readers gain a better understanding of piezocatalysis and enable its application in their own research.

show abstract

“…Piezoelectric owns high piezoelectric coefficient in the vicinity of the Curie temperature. To take full use of this feature and mechanical energy, Zhang et al [342] exploited a solid state reaction to prepare Nb-doped lead zirconate titanate with low Curie temperature (≈38 °C) approaching to room temperature for piezocatalytic CO 2 reduction. The large variation of polarization intensity at the temperature near T c , which was derived from periodic ultrasonic acoustic pressure, induced more piezoelectric free charges to interact with CO 2 molecules so as to acquire optimal piezocatalytic activity with a CO evolution rate of 789 µmol g −1 h −1 when the catalyst dosage was 0.1 g L −1 .…”

Section: Piezocatalytic Energy Carrier Production By Titanatesmentioning

confidence: 99%

Versatile Titanates: Classification, Property, Preparation, and Sustainable Energy Catalysis

Wang

Zhang

2021

Adv Funct Materials

View full text Add to dashboard Cite

Global warming, energy deficiency, and environmental deterioration triggered by burning fossil fuels, may severely impair economic development and human life and health. Green solar power, mechanical energy, and temperature fluctuation heat energy abound in nature and are readily accessible. Thanks to various appealing characteristics, titanates are universally employed to harvest these sustainable energy sources to produce renewable fuels through photocatalysis, piezocatalysis, and pyrocatalysis, alleviating above serious issues. In this review, the research progress in energy catalysis driven by solar light, mechanical stress, and temperature fluctuation over titanates is comprehensively described. It starts with the classification and introduction of diverse titanates. Next, the main methods for preparing titanates are introduced. Highlighted are titanates acting as cocatalysts, photocatalysts, piezocatalysts, and pyrocatalysts to participate in water splitting reaction for H 2 evolution and atmospheric CO 2 reduction conversion into CO or hydrocarbons. In particular, the material modification strategies for improving photocatalytic performance are discussed. Finally, the rosy prospects of the future development of energy catalysis application for titanates are looked into.

show abstract

Polarisation tuneable piezo-catalytic activity of Nb-doped PZT with low Curie temperature for efficient CO₂ reduction and H₂ generation

Abstract: The reduction of CO2 into useful hydrocarbon chemicals has attracted significant attention in light of the depletion in fossil resources and the global demand for sustainable sources of energy. In...

Cited by 49 publications

References 78 publications

Engineering the Defects and Microstructures in Ferroelectrics for Enhanced/Novel Properties: An Emerging Way to Cope with Energy Crisis and Environmental Pollution

Engineering the Defects and Microstructures in Ferroelectrics for Enhanced/Novel Properties: An Emerging Way to Cope with Energy Crisis and Environmental Pollution

The Mechanism of Piezocatalysis: Energy Band Theory or Screening Charge Effect?

Versatile Titanates: Classification, Property, Preparation, and Sustainable Energy Catalysis

Contact Info

Product

Resources

About

Polarisation tuneable piezo-catalytic activity of Nb-doped PZT with low Curie temperature for efficient CO2 reduction and H2 generation

Abstract: The reduction of CO2 into useful hydrocarbon chemicals has attracted significant attention in light of the depletion in fossil resources and the global demand for sustainable sources of energy. In...

Cited by 49 publications

References 78 publications

Engineering the Defects and Microstructures in Ferroelectrics for Enhanced/Novel Properties: An Emerging Way to Cope with Energy Crisis and Environmental Pollution

Engineering the Defects and Microstructures in Ferroelectrics for Enhanced/Novel Properties: An Emerging Way to Cope with Energy Crisis and Environmental Pollution

The Mechanism of Piezocatalysis: Energy Band Theory or Screening Charge Effect?

Versatile Titanates: Classification, Property, Preparation, and Sustainable Energy Catalysis

Contact Info

Product

Resources

About

Polarisation tuneable piezo-catalytic activity of Nb-doped PZT with low Curie temperature for efficient CO₂ reduction and H₂ generation