Selective Dissolution of A‐Site Cations in ABO<sub>3</sub> Perovskites: A New Path to High‐Performance Catalysts

Si, Wenzhe; Wang, Yu; Peng, Yue; Li, Junhua

doi:10.1002/anie.201502632

Cited by 211 publications

(113 citation statements)

References 39 publications

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“…S6B). The above results confirm both 3DOM g-C 3 N 4 and 3DOM g-C 3 N 4 -PW 11 possess clear macroporous structure [27]. The surface area, pore volume and pore diameter of 3DOM g-C 3 N 4 and 3DOM g-C 3 N 4 -PW 11 are shown in Table S1.…”

Section: Figsupporting

confidence: 73%

“…S16). The oxygen desorption at low temperature ( < 400°C) is ascribed to adsorbed oxygen (O ads ), and the lattice oxygen (O latt ) starts to be released at high temperature ( > 400°C) [27]. The oxygen desorption at 341°C can only be observed in 3DOM g-C 3 N 4 -PW 11 , indicating the amounts of O ads in 3DOM g-C 3 N 4 -PW 11 are much more than those in 3DOM g-C 3 N 4 and K-PW 11 .…”

Section: −2mentioning

confidence: 99%

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Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production

et al. 2017

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A B S T R A C TThe polyoxometalate (POM) cluster of [PW 11 O 39 ] 7-(PW 11 ) has been successfully covalent combined with the three dimensionally ordered macroporous graphitic carbon nitride (3DOM g-C 3 N 4 ) through the organic linker strategy. The characterization such as solid-state NMR and XPS results confirm the organosilicon agent of (triethoxysilyl)-propyl isocyanate can act as the linker to covalent combine the PW 11 cluster with 3DOM g-C 3 N 4 . The hybrid catalyst of 3DOM g-C 3 N 4 -PW 11 exhibits efficient catalytic performance (2.4 μmol h −1 ) for lightdriven H 2 O 2 production from H 2 O and O 2 in the absence of organic electron donors. The ESR results suggest that one-electron reduction of O 2 to •OOH is indeed suppressed over 3DOM g-C 3 N 4 -PW 11 . Furthermore, the Koutecky-Levich plot obtained from electrochemical rotating disk electrode (RDE) analysis of oxygen reduction reaction (ORR) for 3DOM g-C 3 N 4 -PW 11 reveals the value of electron transfer during the ORR process is 2.30, indicating the covalent combination can promote the two-electron O 2 reduction. In addition, the recycle experiment results reveal that the heterogeneous 3DOM g-C 3 N 4 -PW 11 is catalytic stable.

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Section: Figsupporting

confidence: 73%

Section: −2mentioning

confidence: 99%

Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production

et al. 2017

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“…In Figure 2B, O 1s has signals at BE values of 529.9 and 531.6 eV, which correspond to surface lattice oxygen (O latt ) and surface adsorbed oxygen (O ads ), respectively. 51,52 The dominant source of O ads is originate from the As(III) and As(V), which exists as H 3 AsO 3 and H 2 AsO 4 − under the experiment condition (pH 6). And the O latt is belonging to the ZCNs itself, and it will remains invariant during the adsorption process.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Zirconia (ZrO₂) Embedded in Carbon Nanowires via Electrospinning for Efficient Arsenic Removal from Water Combined with DFT Studies

Luo

et al. 2016

ACS Appl. Mater. Interfaces

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To use zirconia (ZrO 2 ) as an efficient environmental adsorbent, it can be impregnated on a support to improve its physical properties and lower the overall cost. In this study, ZrO 2 embedded in carbon nanowires (ZCNs) is fabricated via an electrospinning method to remove arsenic (As) from water. The maximum adsorption capacity values of As(III) and As(V) on the ZCNs are 28.61 and 106.57 mg/g, respectively, at 40°C. These capacities are considerably higher than those of pure ZrO 2 (2.56 and 3.65 mg/g for As(III) and As(V), respectively) created using the same procedure as for the ZCNs. Meanwhile, the adsorption behaviors of As(III) and As(V) on the ZCNs are endothermic and pH dependent and follow the Freundlich isotherm model and pseudo-first-order kinetic model. Both As(III) and As(V) are chemisorbed onto the ZCNs, which is confirmed by a partial density of state (PDOS) analysis and Dubinin−Radushkevich (D-R) model calculations. Furthermore, the ZCNs also possess the capability to enhance or catalyze the oxidation process of As(III) to As(V) using dissolved oxygen. This result is confirmed by a batch experiment, XPS analysis and Mulliken net charge analysis. Density functional theory (DFT) calculations indicate the different configurations of As(III) and As(V) complexes on the tetragonal ZrO 2 (t-ZrO 2 )(111) and monoclinic ZrO 2 (m-ZrO 2 )(111) planes, respectively. The adsorption energy (E ad ) of As(V) is higher than that of As(III) on both the tZrO 2 (111) and m-ZrO 2 (111) planes (3.38 and 1.90 eV, respectively, for As(V) and 0.37 and 0.12 eV, respectively, for As(III)).

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“…Li and his coworkers introduced this technique for the treatment of three-dimensionally ordered macroporous LaMnO 3 perovskite with dilute HNO 3 , acquiring a novel γ-MnO 2 -like material after the selective removal of La cations [34]. This novel sample showed a significantly higher catalytic activity for CO oxidation than the initial precursor LaMnO 3 and ordinary γ-MnO 2 oxide, which was predominantly attributed to its large specific surface area and high degree of mesoporosity.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of mesoporous Co3O4 oxides by acid treatment and their catalytic performances for toluene oxidation

Zhang

Zhong

et al. 2018

Applied Catalysis A: General

174

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A B S T R A C TConsidering the harmful effects of volatile organic compounds (VOCs) on the atmosphere and public health, the search for proper catalytic materials for the effective catalytic elimination of VOCs remains one of the most pressing issues in the environmental field. In this study, a series of mesoporous Co 3 O 4 -n (n = 0.00, 0.0001, 0.01, 0.05, 0.10, 1.00, representing the concentration of HNO 3 aqueous solution) catalysts were fabricated by the acid treatment of Co 3 O 4 that was previously prepared via a hydroxycarbonate precipitation method (Co 3 O 4 -P). The catalytic performances of the prepared catalysts were evaluated for the model reaction of toluene oxidation. An obvious enhancement of catalytic activity in the reaction was achieved over the acid-treated Co 3 O 4 catalysts using lower HNO 3 concentrations, with Co 3 O 4 -0.01 exhibiting the optimum catalytic activity (T 90 = 225°C, 15°C lower than that of Co 3 O 4 -P), excellent catalytic durability under dry conditions and a high regeneration capability under humid conditions. Benefitting from the dilute acid treatment, the Co 3 O 4 -n (n = 0.01, 0.05, 0.10) catalysts presented higher specific surface areas, more weak acidic sites and higher abundances of surface Co 2+ and O ads species, which were regarded as the key factors responsible for their enhanced catalytic activities.

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Selective Dissolution of A‐Site Cations in ABO₃ Perovskites: A New Path to High‐Performance Catalysts

Cited by 211 publications

References 39 publications

Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production

Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production

Zirconia (ZrO₂) Embedded in Carbon Nanowires via Electrospinning for Efficient Arsenic Removal from Water Combined with DFT Studies

Fabrication of mesoporous Co3O4 oxides by acid treatment and their catalytic performances for toluene oxidation

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Selective Dissolution of A‐Site Cations in ABO3 Perovskites: A New Path to High‐Performance Catalysts

Cited by 211 publications

References 39 publications

Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production

Covalent combination of polyoxometalate and graphitic carbon nitride for light-driven hydrogen peroxide production

Zirconia (ZrO2) Embedded in Carbon Nanowires via Electrospinning for Efficient Arsenic Removal from Water Combined with DFT Studies

Fabrication of mesoporous Co3O4 oxides by acid treatment and their catalytic performances for toluene oxidation

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Product

Resources

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Selective Dissolution of A‐Site Cations in ABO₃ Perovskites: A New Path to High‐Performance Catalysts

Zirconia (ZrO₂) Embedded in Carbon Nanowires via Electrospinning for Efficient Arsenic Removal from Water Combined with DFT Studies