Piezocatalysis: Can catalysts really dance?

Bößl, Franziska; Tudela, Ignacio

doi:10.1016/j.cogsc.2021.100537

Cited by 50 publications

(28 citation statements)

References 58 publications

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“…The bubbles then undergo a process called asymmetric bubble collapse [96] on the surface of a catalyst, which induces stress on the catalysts, thus activating the piezo-catalytic system. [95] While the majority of reports on PC systems focus on traditional piezoelectric (non-2D) crystals, there are recent reports of PC in transition metal dichalcogenides, [97,98] monochalcogenides, [99] oxides, [14,99] and phosphides. [99,100] It is likely that as engineering out-of-plane piezoelectricity in 2D crystals is realized, [17] 2D crystals will emerge as the most popular PC materials.…”

Section: Dynamic Mechanical Stress For Optimizing Photo-electrical Co...mentioning

confidence: 99%

Energy Interplay in Materials: Unlocking Next‐Generation Synchronous Multisource Energy Conversion with Layered 2D Crystals

et al. 2022

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Layered 2D crystals have unique properties and rich chemical and electronic diversity, with over 6000 2D crystals known and, in principle, millions of different stacked hybrid 2D crystals accessible. This diversity provides unique combinations of properties that can profoundly affect the future of energy conversion and harvesting devices. Notably, this includes catalysts, photovoltaics, superconductors, solar‐fuel generators, and piezoelectric devices that will receive broad commercial uptake in the near future. However, the unique properties of layered 2D crystals are not limited to individual applications and they can achieve exceptional performance in multiple energy conversion applications synchronously. This synchronous multisource energy conversion (SMEC) has yet to be fully realized but offers a real game‐changer in how devices will be produced and utilized in the future. This perspective highlights the energy interplay in materials and its impact on energy conversion, how SMEC devices can be realized, particularly through layered 2D crystals, and provides a vision of the future of effective environmental energy harvesting devices with layered 2D crystals.

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Section: Dynamic Mechanical Stress For Optimizing Photo-electrical Co...mentioning

confidence: 99%

Energy Interplay in Materials: Unlocking Next‐Generation Synchronous Multisource Energy Conversion with Layered 2D Crystals

et al. 2022

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“…The Fe3O4 had a large specific surface are, but was positively charged and, therefore, unable to adsorb the rhodamine B well. Piezo-catalytic reactions often occur on the catalyst surface, so the good ability of the Fe3O4@MoS2 to adsorb rhodamine B contributes to its catalytic performance [13,17,18]. Piezo-catalytic degradation of rhodamine B over the materials was performed under a 40 kHz ultrasonic wave (250 W).…”

Section: Adsorption and Piezo-catalytic Degradation Of Rhodamine B Over Materialsmentioning

confidence: 99%

“…Among these studies, piezo-catalysis as an emerging advanced oxidation technology for the efficient degradation of organic pollutants from water is particularly notable, and has been the most reported [17][18][19]. Recently, MoS 2 with few layers was reported to have a novel piezo-catalytic effect as a result of its central asymmetric structure, thus presenting ultrahigh activity for the degradation of dyes [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Separable Magnetic Fe3O4@MoS2 Composite for Adsorption and Piezo-Catalytic Degradation of Dye

Zhou

Liu

et al. 2021

Catalysts

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Well-designed composite catalysts are of increasing concern due to their improved performance compared to individual components. Herein, we designed and synthesized an Fe3O4@MoS2 composite via a simple hydrothermal method. As for the resultant composite, the MoS2 nanolayers presented a novel piezo-catalytic effect, while the Fe3O4 core provided a magnetic separation property. The structure and properties of Fe3O4@MoS2 were determined by relevant experiments. It was found that Fe3O4@MoS2 exhibited enhanced piezo-catalytic degradation of rhodamine B and good magnetic recovery/recycling features. The kobs for rhodamine B degradation over Fe3O4@MoS2 was 0.019 min−1—a little longer than that over MoS2 (0.013 min−1). Moreover, Fe3O4@MoS2 also showed a favorable ability to adsorb rhodamine B in solution, with a saturation adsorption of 26.8 mg/g. Further studies revealed that piezo-electrons, holes, and superoxide anions were key species in the piezo-catalytic degradation of rhodamine B. Notably, the step where oxygen trapped electrons to produce superoxide anions had a significant impact on the degradation of the dye. This work, not limited to the development of a high-performance MoS2-based piezo-catalyst, is expected to provide new insights into the working mechanisms and process profiles of composite piezo-catalysts.

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“…The coupling of mechanical vibration to catalytic processes is a relatively new research area and has been termed piezocatalysis. [ 21–23 ] This provides a fascinating new approach to water splitting and environmental remediation technologies. [ 12 ] Piezocatalysis has been achieved using a variety of ferroelectric and piezoelectric materials that include lead magnesium niobate–lead titanate (PMN‐PT) single crystal, [ 24 ] lead zirconate titanate (PZT), [ 25 ] piezoelectric ZnO [ 10,11,26 ] and BaTiO 3 .…”

Section: Introductionmentioning

confidence: 99%

“…Piezocatalysis has often been examined by the application of ultrasound to ferroelectric materials within a liquid suspension. [ 21,23 ] There are both chemical and mechanical effects that can result from the acoustic cavitation of a liquid subjected to ultrasound. [ 37 ] These effects can be powerful tools for industrial applications where chemical effects are produced during the process of free radical production and pyrolysis as a result of the local high temperature and pressure associated with cavitation events.…”

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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Piezocatalysis: Can catalysts really dance?

Cited by 50 publications

References 58 publications

Energy Interplay in Materials: Unlocking Next‐Generation Synchronous Multisource Energy Conversion with Layered 2D Crystals

Energy Interplay in Materials: Unlocking Next‐Generation Synchronous Multisource Energy Conversion with Layered 2D Crystals

Separable Magnetic Fe3O4@MoS2 Composite for Adsorption and Piezo-Catalytic Degradation of Dye

High Efficiency Water Splitting using Ultrasound Coupled to a BaTiO₃ Nanofluid

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Piezocatalysis: Can catalysts really dance?

Cited by 50 publications

References 58 publications

Energy Interplay in Materials: Unlocking Next‐Generation Synchronous Multisource Energy Conversion with Layered 2D Crystals

Energy Interplay in Materials: Unlocking Next‐Generation Synchronous Multisource Energy Conversion with Layered 2D Crystals

Separable Magnetic Fe3O4@MoS2 Composite for Adsorption and Piezo-Catalytic Degradation of Dye

High Efficiency Water Splitting using Ultrasound Coupled to a BaTiO3 Nanofluid

Contact Info

Product

Resources

About

High Efficiency Water Splitting using Ultrasound Coupled to a BaTiO₃ Nanofluid