Pyroelectric nanoplates for reduction of CO2 to methanol driven by temperature-variation

Xiao, Lingbo; Xu, Xiaoli; Jia, Yanmin; Hu, Guozhong; Hu, Jun; Yuan, Biao; Yu, Yi; Zou, Guifu

doi:10.1038/s41467-020-20517-1

Cited by 70 publications

(36 citation statements)

References 42 publications

(52 reference statements)

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“…Xiao et al [60] found that the pyroelectric properties of ferroelectrics could be used for cost-effective and ecofriendly CO 2 reduction. For example, layered perovskite bismuth tungstate (Bi 2 WO 6 ) nanoplate could harvest heat energy from tempera- and ii represent the electric potential under light case and light+ultrasound wave or light+temperature fluctuation.…”

Section: Pztnmentioning

confidence: 99%

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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: Pztnmentioning

confidence: 99%

“…The internal polarization reduces when the temperature increases and thus breaks the balance, which induces free charges. The negative charges will react with CO 2 to form methanol and the free positive charges would transfer [60] Copyright 2021, Springer Nature.…”

Section: Pztnmentioning

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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“…When the spontaneous polarization in a material changes with temperature, the surface of the material generates positive and negative polarization charges gathering in different areas along a certain direction. [ 140 ] This characteristic is defined as the pyroelectric effect, and a material with this pyroelectric effect is a pyroelectric material. The discharge effect can be divided into the first‐level pyroelectric effect, the second‐level pyroelectric effect, and the third‐level pyroelectric effect.…”

Section: Effective Strategies To Promote Carrier Transport In Photoel...mentioning

confidence: 99%

Recent Progress on Semiconductor Heterojunction‐Based Photoanodes for Photoelectrochemical Water Splitting

Meng

et al. 2022

Small Science

101

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For photoelectrochemical (PEC) water splitting, the utilization of semiconductor heterojunctions as building blocks for photoanodes allows for high light absorption, effective charge separation, and superior redox capability, greatly boosting the solar energy conversion efficiency. This review mainly focuses on the construction of heterojunction photoanodes, improvement strategies of carrier transmission, and their application in PEC water splitting. First, a series of carrier dynamics characterization methods are introduced to reveal the principle and significance of promoting carrier transport in heterojunctions. Then, from the perspective of the mechanism of promoting the separation and transport of charge carriers, several strategies are summarized and analyzed, including the micro/nanostructure, energy band structure, photothermal effect, piezoelectric effect, pyroelectric effect, ferroelectric effect, and intermediate layer. Finally, the challenges and opportunities for heterojunction photoanodes in PEC reactions are explained clearly, which points the way forward for the development of heterojunctions.

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“…So far, pyrocatalysis has already been applied in fields of pollutant degradation, water splitting, carbon dioxide reduction, oxygen activation, antibiosis, etc., and especially the production of value‐added H 2 and carbon‐containing fuels has significance on alleviating the current energy crisis, though there are few explorations on pyrocatalytic CO 2 reduction at present. [ 346 ] In addition, light as an important part of energy in natural world, starts to be combined with temperature fluctuations to drive water splitting into H 2 , which is deemed as an attractive development direction.…”

Section: Titanates For Piezocatalytic and Pyrocatalytic Energy Genera...mentioning

confidence: 99%

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

Wang

Zhang

2021

Adv Funct Materials

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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.

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Pyroelectric nanoplates for reduction of CO2 to methanol driven by temperature-variation

Cited by 70 publications

References 42 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

Recent Progress on Semiconductor Heterojunction‐Based Photoanodes for Photoelectrochemical Water Splitting

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

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