Direct piezocatalytic conversion of methane into alcohols over hydroxyapatite

Zhou, Yong‐Gui; Wang, Haipeng; Liu, Xuechen; Qiao, Simeng; Shao, Dengkui; Zhou, Jing; Zhang, Ling; Wang, Wenzhong

doi:10.1016/j.nanoen.2020.105449

Cited by 39 publications

(37 citation statements)

References 41 publications

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“…Fig. 2c shows the PFM result of tip displacement against applied voltage for the as-prepared sample, indicating a hysteresis with butterfly shape, which is a characteristic and direct evidence of the piezoelectric response of the Bi2S3 nanorods [12,23]. 3d-f, respectively.…”

Section: Resultsmentioning

confidence: 92%

“…Besides the most commonly used piezoelectric materials, which are the perovskitetype structure, such as BaTiO3 [7], PbTiO3 [8], and LiNbO3 [9] that have the general formula of ABO3, other classes of materials have been investigated for piezocatalytic response. These classes encompass binary oxide [10], metal chalcogenide [11], apatite [12], and so on. Recently, Liu and collaborators reported the activity of submicrorod particles of m-Bi2O4 for the piezocatalytic degradation of sulfamethazine antibiotic [13].…”

Section: Introductionmentioning

confidence: 99%

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Behavior of Bi2S3 under ultrasound irradiation for Rhodamine B dye degradation

Teodoro

Trench

Trindade

et al. 2021

Chemical Physics Letters

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Section: Resultsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Behavior of Bi2S3 under ultrasound irradiation for Rhodamine B dye degradation

Teodoro

Trench

Trindade

et al. 2021

Chemical Physics Letters

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“…In parallel, when using 3 mL H 2 16 O, 1 bar 18 O 2 and 19 bar CH 4 , the signals at m/z = 34 and 33 were attributed to the isotopic labelled CH 3 18 OH and its fragment (Figure 4d), suggesting O 2 was the only oxygen source for CH 3 OH formation. Carbon source for methanol production were also studied in the presence of 5 bar isotopic labelled 13 CH 4 (Figure 4e), where the signal of mass spectra (MS) at m/z = 33 was ascribed to 13 CH 3 OH, demonstrating that CH 4 was the carbon source for oxygenates production.…”

Section: Mechanism Investigationmentioning

confidence: 99%

“…[6][7][8] Industrial multistep route via steam reforming and subsequent Fischer-Tropsch synthesis could e ciently activate CH 4 , while it requires harsh experimental conditions (eg. > 700 o C temperature and/or high pressure), causing huge energy-consumption and safety issues [9][10][11][12][13]. In parallel, it is relatively di cult to achieve high selectivity due to the more reactive characteristics of the desired oxygenates against both the reactant CH 4 and stable product CO 2 .…”

Section: Introductionmentioning

confidence: 99%

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Synergy of Single Atoms Pd and Oxygen Vacancies on In2O3 for Highly Selective C1 Oxygenates Production from Methane under Visible Light

Luo¹,

Fu²,

Liu³

et al. 2021

Preprint

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Methane (CH4) oxidation to high value chemicals under mild conditions through photocatalysis is a sustainable and appealing pathway, nevertheless confronting the critical issues on both conversion and selectivity. Herein, under visible irradiation (420 nm), the synergy of palladium (Pd) atom cocatalyst and oxygen vacancies (OVs) on In2O3 nanorods enabled superior photocatalytic CH4 activation by O2. The optimised catalyst reached ca. 100 µmol·h− 1 of C1 oxygenates, with a selectivity of primary products (CH3OH and CH3OOH) up to 82.5 %. Mechanism investigation elucidated that such superior photocatalysis was induced by the dedicated function of Pd single atoms and oxygen vacancies on boosting hole and electron transfer pathway, respectively. O2 was proven to be the only oxygen source for CH3OH production, while H2O acted as the promoter for efficient CH4 activation through ·OH production and facilitated product desorption as indicated by DFT modelling. This work thus provides new understandings on simultaneous regulation of activity and selectivity by the significant synergy of single atom cocatalysts and oxygen vacancies.

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Polar Layered Bismuth‐Rich Oxyhalide Piezoelectrics Bi₄O₅X₂ (XBr, I): Efficient Piezocatalytic Pure Water Splitting and Interlayer Anion‐Dependent Activity

Wang

Chen

et al. 2023

Adv Funct Materials

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Piezocatalytic pure water splitting for H 2 evolution carries the virtues of efficacious utilization of mechanical energy, easy operation, and high value-added products, while lacking desirable piezoelectrics for high chemical energy production. Here, two polar layered bismuth-rich oxyhalides Bi 4 O 5 X 2 (XBr, I) thin nanosheets (≈4 nm) are first exploited as efficient piezocatalysts to be capable of dissociating pure water. The unique asymmetrical layered structures of Bi 4 O 5 X 2 (XBr, I) composed of the interleaved [Bi 4 O 5 ] 2+ layer and double X − ions slabs along the [1 0 1_] orientation cause large intrinsic dipole moment, excellent piezoelectricity and easy deformation. Without any cocatalyst and sacrificial agent, Bi 4 O 5 Br 2 and Bi 4 O 5 I 2 thin nanosheets display remarkable piezocatalytic H 2 production rate of 1149.0 and 764.5 µmol g −1 h −1 , respectively, standing among the best piezocatalysts, accompanied by H 2 O 2 and hydroxyl radicals (•OH) as oxidative products. The smaller radius and higher electronegativity of interleaved Br than I cause a more strongly polar crystal structure in Bi 4 O 5 Br 2 , contributing to the higher piezocatalytic activity compared to Bi 4 O 5 I 2 . This study broadens the scope of piezoelectric materials applied to sustainable energy catalysis by efficiently converting mechanical energy and illustrates the importance of crystal configuration and composition in fabricating efficient piezocatalytic systems.

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Direct piezocatalytic conversion of methane into alcohols over hydroxyapatite

Cited by 39 publications

References 41 publications

Behavior of Bi2S3 under ultrasound irradiation for Rhodamine B dye degradation

Behavior of Bi2S3 under ultrasound irradiation for Rhodamine B dye degradation

Synergy of Single Atoms Pd and Oxygen Vacancies on In2O3 for Highly Selective C1 Oxygenates Production from Methane under Visible Light

Polar Layered Bismuth‐Rich Oxyhalide Piezoelectrics Bi₄O₅X₂ (XBr, I): Efficient Piezocatalytic Pure Water Splitting and Interlayer Anion‐Dependent Activity

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Direct piezocatalytic conversion of methane into alcohols over hydroxyapatite

Cited by 39 publications

References 41 publications

Behavior of Bi2S3 under ultrasound irradiation for Rhodamine B dye degradation

Behavior of Bi2S3 under ultrasound irradiation for Rhodamine B dye degradation

Synergy of Single Atoms Pd and Oxygen Vacancies on In2O3 for Highly Selective C1 Oxygenates Production from Methane under Visible Light

Polar Layered Bismuth‐Rich Oxyhalide Piezoelectrics Bi4O5X2 (XBr, I): Efficient Piezocatalytic Pure Water Splitting and Interlayer Anion‐Dependent Activity

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Polar Layered Bismuth‐Rich Oxyhalide Piezoelectrics Bi₄O₅X₂ (XBr, I): Efficient Piezocatalytic Pure Water Splitting and Interlayer Anion‐Dependent Activity