Exploring the mechanism of ZrO2 structure features on H2O2 activation in Zr–Fe bimetallic catalyst

Ye, Yin; Lv, Ruolin; Li, Xiaoyang; Lv, Lu; Zhang, Weiming

doi:10.1016/j.apcatb.2021.120685

Cited by 32 publications

(5 citation statements)

References 52 publications

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“…After cooling down to room temperature, the precipitate of UiO-66 was obtained by centrifugation, rinsed with methanol several times, and finally dried at 100 °C for 12 h. ZrO 2 -P was synthesized by the simple co-precipitation method with a slight modification from the previous works. [33,34] Solutions of ZrCl 4 (1.0 mol L −1 ) were stirred well, and then heated at 60 °C for 30 min. The solution was dropped into 50 mL of 3.0 mol L −1 NH 4 OH solution located in a magnetic Stirrer at 60 °C.…”

Section: Discussionmentioning

confidence: 99%

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Efficient Solar‐Driven CO₂ Methanation and Hydrogen Storage Over Nickel Catalyst Derived from Metal–Organic Frameworks with Rich Oxygen Vacancies

Wang,

Li,

Chen

et al. 2023

Advanced Science

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Solar‐driven photothermal conversion of carbon dioxide (CO2) to methane (CH4) is a promising approach to remedy energy shortage and climate changes, where highly efficient photothermal catalysts for CO2 methanation urgently need to be designed. Herein, nickel‐based catalysts (Ni/ZrO2) derived from metal–organic frameworks (MOFs) are fabricated and studied for photothermal CO2 methanation. The optimized catalyst 50Ni/ZrO2 achieves a stable CH4 production rate of 583.3 mmol g−1 h−1 in a continuous stability test, which is almost tenfold higher than that of 50Ni/C‐ZrO2 synthesized via commercial ZrO2. Physicochemical properties indicate that 50Ni/ZrO2 generates more tetragonal ZrO2 and possesses more oxygen vacancies (OVs) as well as enhanced nickel‐ZrO2 interaction. As a result, 50Ni/ZrO2 exhibits the strong abilities of light absorption and light‐to‐heat conversion, superior adsorption capacities of reactants (H2, CO2), and an intermediate product (CO), which finally boosts CH4 formation. This work provides an efficient strategy to design a photothermocatalyst of CO2 methanation through utilizing MOFs‐derived support.

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Section: Discussionmentioning

confidence: 99%

“…ZrO 2 ‐P was synthesized by the simple co‐precipitation method with a slight modification from the previous works. [ 33,34 ] Solutions of ZrCl 4 (1.0 mol L −1 ) were stirred well, and then heated at 60 °C for 30 min. The solution was dropped into 50 mL of 3.0 mol L −1 NH 4 OH solution located in a magnetic Stirrer at 60 °C.…”

Section: Methodsmentioning

confidence: 99%

Efficient Solar‐Driven CO₂ Methanation and Hydrogen Storage Over Nickel Catalyst Derived from Metal–Organic Frameworks with Rich Oxygen Vacancies

Wang,

Li,

Chen

et al. 2023

Advanced Science

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“…[17c,172] A recent study unveiled that the adsorption of H 2 O 2 onto Fe 2 O 3 (104) was thermodynamically unfavorable, while H 2 O 2 binding with Fe 2 O 3 (110) plane was spontaneous. [173] Zhou et al reported that 𝛼-MnO 2 showed stronger PMS adsorption (E ads = −2.95 eV) than 𝛿-MnO 2 , which facilitated the dissociation of peroxide O-O bond by elongating the peroxide bond length (l O−O ) of PMS. [172a] In fact, the catalytic activity of intact crystals (e.g., 𝛿-MnO 2 ) can be reactive by introducing the vacancies.…”

Section: Adsorption Energiesmentioning

confidence: 99%

Size‐Dependent Catalysis in Fenton‐like Chemistry: From Nanoparticles to Single Atoms

Guo,

Gao,

et al. 2024

Advanced Materials

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State‐of‐the‐art Fenton‐like reactions are crucial in advanced oxidation processes (AOPs) for water purification. This review explores the latest advancements in heterogeneous metal‐based catalysts within AOPs, covering nanoparticles (NPs), single‐atom catalysts (SACs), and ultra‐small atom clusters. A distinct connection between the physical properties of these catalysts, such as size, degree of unsaturation, electronic structure, and oxidation state, and their impacts on catalytic behavior and efficacy in Fenton‐like reactions. In‐depth comparative analysis of metal NPs and SACs was conducted focusing on how particle size variations and metal‐support interactions affect oxidation species and pathways. The review highlights the cutting‐edge characterization techniques and theoretical calculations, indispensable for deciphering the complex electronic and structural characteristics of active sites in downsized metal particles. Additionally, the review underscores innovative strategies for immobilizing these catalysts onto membrane surfaces, offering a solution to the inherent challenges of powdered catalysts. Recent advances in pilot‐scale or engineering applications of Fenton‐like based devices have also been summarized for the first time. The paper concludes by charting new research directions, emphasizing advanced catalyst design, precise identification of reactive oxygen species, and in‐depth mechanistic studies. These efforts aim to enhance the application potential of nanotechnology‐based AOPs in real‐world wastewater treatment.This article is protected by copyright. All rights reserved

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“…The decomposition pathway of H 2 O 2 may also be regulated to give 1 O 2 . 150,151 While the superoxide radical (O 2 ˙ − ) is produced from the catalytic activation of H 2 O 2 , in many cases it can undergo further disproportionation to produce 1 O 2 . 152 This pathway however cannot ensure the efficient and selective generation of 1 O 2 , as the Haber–Weiss reaction (O 2 ˙ − + H 2 O 2 → HO˙ + OH − + O 2 ) significantly reduces the yield of 1 O 2 .…”

Section: Generation Of Reactive Oxygen Speciesmentioning

confidence: 99%

Reactive oxygen species on transition metal-based catalysts for sustainable environmental applications

et al. 2022

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Exploring the mechanism of ZrO2 structure features on H2O2 activation in Zr–Fe bimetallic catalyst

Cited by 32 publications

References 52 publications

Efficient Solar‐Driven CO₂ Methanation and Hydrogen Storage Over Nickel Catalyst Derived from Metal–Organic Frameworks with Rich Oxygen Vacancies

Efficient Solar‐Driven CO₂ Methanation and Hydrogen Storage Over Nickel Catalyst Derived from Metal–Organic Frameworks with Rich Oxygen Vacancies

Size‐Dependent Catalysis in Fenton‐like Chemistry: From Nanoparticles to Single Atoms

Reactive oxygen species on transition metal-based catalysts for sustainable environmental applications

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Exploring the mechanism of ZrO2 structure features on H2O2 activation in Zr–Fe bimetallic catalyst

Cited by 32 publications

References 52 publications

Efficient Solar‐Driven CO2 Methanation and Hydrogen Storage Over Nickel Catalyst Derived from Metal–Organic Frameworks with Rich Oxygen Vacancies

Efficient Solar‐Driven CO2 Methanation and Hydrogen Storage Over Nickel Catalyst Derived from Metal–Organic Frameworks with Rich Oxygen Vacancies

Size‐Dependent Catalysis in Fenton‐like Chemistry: From Nanoparticles to Single Atoms

Reactive oxygen species on transition metal-based catalysts for sustainable environmental applications

Contact Info

Product

Resources

About

Efficient Solar‐Driven CO₂ Methanation and Hydrogen Storage Over Nickel Catalyst Derived from Metal–Organic Frameworks with Rich Oxygen Vacancies

Efficient Solar‐Driven CO₂ Methanation and Hydrogen Storage Over Nickel Catalyst Derived from Metal–Organic Frameworks with Rich Oxygen Vacancies