Highly-efficient piezocatalytic performance of nanocrystalline BaTi0.89Sn0.11O3 catalyst with Tc near room temperature

Zhao, Qi; Xiao, Haiyan; Huangfu, Geng; Zheng, Zhe; Wang, Jiasheng; Wang, Feifei; Guo, Yiping

doi:10.1016/j.nanoen.2021.106028

Cited by 65 publications

(43 citation statements)

References 53 publications

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“…As shown in Figure 55 , by optimizing the properties of photoferroelectrics based on defect engineering or microstructure engineering, ferroelectrics with improved light absorption, high piezoelectricity, and high pyroelectricity can be designed for co‐catalysis. [ 119 , 208 , 225 ] Photoferroelectrics can even show novel/outstanding NIR light catalytic performance in comparison with that of the conventional catalyst that generally absorbs light in the UV–vis range. [ 119 ] Actually, different photoferroelectrics show different level of photocurrent J sc , from nA cm ‐2 level in KNBNNO [ 35 , 92 ] to µA cm ‐2 level in PbTiO 3 –Bi(Ni 1/2 Ti 1/2 )O 3 .…”

Section: Summary and Perspectivesmentioning

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

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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.

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Section: Summary and Perspectivesmentioning

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

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“…This result is well consistent with reported works of other 2D piezocatalysis materials. [ 37,38 ] A comparison with existing piezoelectric catalysts (Table S2, Supporting Information) shows that the efficiency is among the highest value of reported works, such as representative perovskite oxides (e.g., BiFeO 3 , [ 4 ] Bi 2 WO 6 , [ 5 ] and BaTi 0.89 Sn 0.11 O 3 [ 39 ] ) and 2D TMCs (e.g., MoS 2 [ 9 ] and CdS [ 10 ] ), and comparable with the most widely investigated photocatalysis technology. It is worth noting that atomically thin 2D piezoelectrics exhibited exceptional H 2 production efficiency, reaching 1.08 mmol g −1 h −1 for ZnS (≈2 nm) [ 11 ] and 8.35 mmol g −1 h −1 for C 3 N 4 (≈1.5 nm).…”

Section: Resultsmentioning

confidence: 99%

Mechanically Induced Highly Efficient Hydrogen Evolution from Water over Piezoelectric SnSe nanosheets

Zhao

et al. 2022

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Piezoelectric nanomaterials open new avenues in driving green catalysis processes (e.g., H2 evolution from water) through harvesting mechanical energy, but their catalytic efficiency is still limited. The predicted enormous piezoelectricity for 2D SnSe, together with its high charge mobility and excellent flexibility, renders it an ideal candidate for stimulating piezocatalysis redox reactions. In this work, few‐layer piezoelectric SnSe nanosheets (NSs) are utilized for mechanically induced H2 evolution from water. The finite elemental method simulation demonstrates an unprecedent maximal piezoelectric potential of 44.1 V for a single SnSe NS under a pressure of 100 MPa. A record‐breaking piezocurrent density of 0.3 mA cm−2 is obtained for SnSe NSs‐based electrode under ultrasonic excitation (100 W, 45 kHz), which is about three orders of magnitude greater than that of reported piezocatalysts. Moreover, an exceptional H2 production rate of 948.4 µmol g−1 h−1 is achieved over the SnSe NSs without any cocatalyst, far exceeding most of the reported piezocatalysts and competitive with the current photocatalysis technology. The findings not only enrich the potential piezocatalysis materials, but also provide useful guidance toward high‐efficiency mechanically driven chemical reactions such as H2 evolution from water.

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“…[16,31,32] Other work has been reported on the exploitation of noble metals as the co-catalyst [29,30,33] and maximizing the polarization change when the working temperature is close to the Curie temperature, T c , of a ferroelectric. [34,35] Recent work by Su et al indicates that multi-phase ferroelectric materials may lead to lower energy barriers and improved catalyst performance. [36] Piezocatalysis has often been examined by the application of ultrasound to ferroelectric materials within a liquid suspension.…”

Section: Introductionmentioning

confidence: 99%

High Efficiency Water Splitting using Ultrasound Coupled to a BaTiO₃ Nanofluid

et al. 2022

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To date, a number of studies have reported the use of vibrations coupled to ferroelectric materials for water splitting. However, producing a stable particle suspension for high efficiency and long-term stability remains a challenge. Here, the first report of the production of a nanofluidic BaTiO 3 suspension containing a mixture of cubic and tetragonal phases that splits water under ultrasound is provided. The BaTiO 3 particle size reduces from approximately 400 nm to approximately 150 nm during the application of ultrasound and the fine-scale nature of the particulates leads to the formation of a stable nanofluid consisting of BaTiO 3 particles suspended as a nanofluid. Long-term testing demonstrates repeatable H 2 evolution over 4 days with a continuous 24 h period of stable catalysis. A maximum rate of H 2 evolution is found to be 270 mmol h -1 g -1 for a loading of 5 mg l -1 of BaTiO 3 in 10% MeOH/H 2 O. This work indicates the potential of harnessing vibrations for water splitting in functional materials and is the first demonstration of exploiting a ferroelectric nanofluid for stable water splitting, which leads to the highest efficiency of piezoelectrically driven water splitting reported to date.

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Highly-efficient piezocatalytic performance of nanocrystalline BaTi0.89Sn0.11O3 catalyst with Tc near room temperature

Cited by 65 publications

References 53 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

Mechanically Induced Highly Efficient Hydrogen Evolution from Water over Piezoelectric SnSe nanosheets

High Efficiency Water Splitting using Ultrasound Coupled to a BaTiO₃ Nanofluid

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Highly-efficient piezocatalytic performance of nanocrystalline BaTi0.89Sn0.11O3 catalyst with Tc near room temperature

Cited by 65 publications

References 53 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

Mechanically Induced Highly Efficient Hydrogen Evolution from Water over Piezoelectric SnSe nanosheets

High Efficiency Water Splitting using Ultrasound Coupled to a BaTiO3 Nanofluid

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High Efficiency Water Splitting using Ultrasound Coupled to a BaTiO₃ Nanofluid