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Yuan Y, Chen L, Wan Z, Shi K, Teng X, Xu H, Wu P, Shi J. Electrocatalytic ORR-coupled ammoximation for efficient oxime synthesis. SCIENCE ADVANCES 2024; 10:eado1755. [PMID: 38787946 PMCID: PMC11122679 DOI: 10.1126/sciadv.ado1755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 04/22/2024] [Indexed: 05/26/2024]
Abstract
State-of-the-art technology for cyclohexanone oxime production typically demands elevated temperature and pressure, along with the utilization of expensive hydroxylamine sulfate or oxidants. Here, we propose an electrochemistry-assisted cascade strategy for the efficient cyclohexanone ammoximation under ambient conditions by using in situ cathode-generated green oxidants of reactive oxygen species (ROS) such as OOH* and H2O2. This electrochemical reaction can take place at the cathode, achieving over 95% yield, 99% selectivity of cyclohexanone oxime, and an electron-to-oxime (ETO) efficiency of 96%. Mechanistic analysis reveals that, in addition to the direct ammoximation by in situ-generated OOH* by electrocatalytic ORR, Ti-MOR also play a major role in capturing OOH* directly and converting the in situ-generated H2O2 to OOH*, thus accelerating the ORR-coupled cascade production of cyclohexanone oxime. This work paves a mild, economical, and sustainable energy-efficient electrocatalytic route for the oxime production using oxygen, ammonium bicarbonate, and cyclohexanone.
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Affiliation(s)
- Yujia Yuan
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Lisong Chen
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
- Institute of Eco-Chongming, Shanghai 202162, China
| | - Zhipeng Wan
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Kai Shi
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Xue Teng
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Hao Xu
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
- Institute of Eco-Chongming, Shanghai 202162, China
| | - Peng Wu
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
- Institute of Eco-Chongming, Shanghai 202162, China
| | - Jianlin Shi
- State Key Laboratory of High-performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
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2
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Yu A, Liu S, Yang Y. Recent advances in electrosynthesis of H 2O 2via two-electron oxygen reduction reaction. Chem Commun (Camb) 2024; 60:5232-5244. [PMID: 38683172 DOI: 10.1039/d4cc01476f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
The electrosynthesis of hydrogen peroxide (H2O2) via a selective two-electron oxygen reduction reaction (2e- ORR) presents a green and low-energy-consumption alternative to the traditional, energy-intensive anthraquinone process. This review encapsulates the principles of designing relational electrocatalysts for 2e- ORR and explores remaining setups for large-scale H2O2 production. Initially, the review delineates the fundamental reaction mechanisms of H2O2 production via 2e- ORR and assesses performance. Subsequently, it methodically explores the pivotal influence of microstructures, heteroatom doping, and metal hybridization along with setup configurations in achieving a high-performance catalyst and efficient reactor for H2O2 production. Thereafter, the review introduces a forward-looking methodology that leverages the synergistic integration of catalysts and reactors, aiming to harmonize the complementary characteristics of both components. Finally, it outlines the extant challenges and the promising avenues for the efficient electrochemical production of H2O2, setting the stage for future research endeavors.
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Affiliation(s)
- Ao Yu
- NanoScience Technology Center, University of Central Florida, Orlando, FL, 32826, USA.
| | - Shengwen Liu
- NanoScience Technology Center, University of Central Florida, Orlando, FL, 32826, USA.
| | - Yang Yang
- NanoScience Technology Center, University of Central Florida, Orlando, FL, 32826, USA.
- Department of Materials Science and Engineering, University of Central Florida, Orlando, FL 32826, USA
- Renewable Energy and Chemical Transformation Cluster, University of Central Florida, Orlando, FL 32826, USA
- Department of Chemistry, University of Central Florida, Orlando, FL 32826, USA
- The Stephen W. Hawking Center for Microgravity Research and Education, University of Central Florida, Orlando, FL 32826, USA
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3
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Anferov SW, Boyn JN, Mazziotti DA, Anderson JS. Selective Cobalt-Mediated Formation of Hydrogen Peroxide from Water under Mild Conditions via Ligand Redox Non-Innocence. J Am Chem Soc 2024; 146:5855-5863. [PMID: 38375752 DOI: 10.1021/jacs.3c11032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Despite the broad importance of hydrogen peroxide (H2O2) in oxidative transformations, there are comparatively few viable routes for its production. The majority of commercial H2O2 is currently produced by the stepwise reduction of dioxygen (O2) via the anthraquinone process, but direct electrochemical formation from water (H2O) would have several advantages─namely, avoiding flammable gases or stepwise separations. However, the selective oxidation of H2O to form H2O2 over the thermodynamically favored product of O2 is a difficult synthetic challenge. Here, we present a molecular H2O oxidation system with excellent selectivity for H2O2 that functions both stoichiometrically and catalytically. We observe high efficiency for electrocatalytic H2O2 production at low overpotential with no O2 observed under any conditions. Mechanistic studies with both calculations and kinetic analyses from isolated intermediates suggest that H2O2 formation occurs in a bimolecular fashion via a dinuclear H2O2-bridged intermediate with an important role for a redox non-innocent ligand. This system showcases the ability of metal-ligand cooperativity and strategic design of the secondary coordination sphere to promote kinetically and thermodynamically challenging selectivity in oxidative catalysis.
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Affiliation(s)
- Sophie W Anferov
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60627, United States
| | - Jan-Niklas Boyn
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - David A Mazziotti
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60627, United States
| | - John S Anderson
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60627, United States
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4
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Evtushok VY, Ivanchikova ID, Zalomaeva OV, Gubanov AI, Kolesov BA, Glazneva TS, Kholdeeva OA. Heterogeneous H 2O 2-based selective oxidations over zirconium tungstate α-ZrW 2O 8. Dalton Trans 2024; 53:1528-1540. [PMID: 38164099 DOI: 10.1039/d3dt03495j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Catalytic properties of a crystalline zirconium tungstate, ZrW2O8, the material known mainly for its isotropic negative coefficient of thermal expansion, have been assessed for the liquid-phase selective oxidation of a range of organic substrates comprising CC, OH, S and other functional groups using aqueous hydrogen peroxide as the green oxidant. Samples of ZrW2O8 were prepared by hydrothermal synthesis and characterised by N2 adsorption, PXRD, SEM, EDX, FTIR and Raman spectroscopic techniques. Studies by IR spectroscopy of adsorbed probe molecules (CO and CDCl3) revealed the presence of Brønsted acidic and basic sites on the surface of ZrW2O8. It was demonstrated that ZrW2O8 is able to activate H2O2 under mild conditions and accomplish the epoxidation of CC bonds in alkenes and unsaturated ketones, oxidation of thioethers to sulfoxides and sulfones, along with the oxidation of alcoholic functions to produce ketones and aldehydes. The oxidation of tetramethylethylene and α-terpinene over ZrW2O8 revealed the formation of peroxidation products, 2,3-dimethyl-3-butene-2-hydroperoxide and endoperoxide ascaridole, respectively, indicating the involvement of singlet oxygen in the oxidation process. The ZrW2O8 catalyst preserves its structure and morphology under the turnover conditions and does not suffer from metal leaching. It can be easily recovered, regenerated by calcination, and reused without the loss of activity and selectivity.
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Affiliation(s)
- Vasilii Yu Evtushok
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia.
| | - Irina D Ivanchikova
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia.
| | - Olga V Zalomaeva
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia.
| | - Alexander I Gubanov
- Nikolaev Institute of Inorganic Chemistry, Pr. Lavrentieva 3, Novosibirsk 630090, Russia
| | - Boris A Kolesov
- Nikolaev Institute of Inorganic Chemistry, Pr. Lavrentieva 3, Novosibirsk 630090, Russia
| | - Tatiana S Glazneva
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia.
| | - Oxana A Kholdeeva
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia.
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5
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Wittmar ASM, Vigneswaran T, Ranković N, Hagemann U, Hartmann N, Martínez-Hincapié R, Čolić V, Ulbricht M. N-Doped porous carbons obtained from chitosan and spent coffee as electrocatalysts with tuneable oxygen reduction reaction selectivity for H 2O 2 generation. RSC Adv 2023; 13:22777-22788. [PMID: 37520102 PMCID: PMC10372475 DOI: 10.1039/d3ra02587j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/10/2023] [Indexed: 08/01/2023] Open
Abstract
Nitrogen-containing porous carbons prepared by the pyrolysis of adequate biopolymer-based precursors have shown potential in several electrochemical energy-related applications. However, it is still of crucial interest to find the optimal precursors and process conditions which would allow the preparation of carbons with adequate porous structure as well as suitable nitrogen content and distribution of functional groups. In the present work we suggested a straightforward approach to prepare N-doped porous carbons by direct pyrolysis under nitrogen of chitosan : coffee blends of different compositions and using KOH for simultaneous surface activation. The synthetized carbon materials were tested for the electrochemical oxygen reduction to hydrogen peroxide (H2O2). A higher fraction of chitosan in the precursor led to a decrease in meso- and nano-porosity of the formed porous carbons, while their activity towards H2O2 generation increased. The nitrogen species derived from chitosan seem to play a very important role. Out of the synthesized catalysts the one with the largest content of pyridinic nitrogen sites exhibited the highest faradaic efficiency. The faradaic efficiencies and current densities of the synthesized materials were comparable with the ones of other commercially available carbons obtained from less renewable precursors.
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Affiliation(s)
- Alexandra S M Wittmar
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen Universitätsstr. 745141 Essen Germany
- NETZ - NanoEnergieTechnikZentrum, CENIDE - Center for Nanointegration Duisburg-Essen Carl-Benz-Str. 199 47057 Duisburg Germany
| | - Thaarmikaa Vigneswaran
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen Universitätsstr. 745141 Essen Germany
| | - Nikola Ranković
- Electrochemistry for Energy Conversion, Max-Planck Institute for Chemical Energy Conversion Stiftstr. 34-36 45470 Mülheim an der Ruhr Germany,
- Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Ulrich Hagemann
- NETZ - NanoEnergieTechnikZentrum, CENIDE - Center for Nanointegration Duisburg-Essen Carl-Benz-Str. 199 47057 Duisburg Germany
- Interdisciplinary Center for Analytics on the Nanoscale (ICAN), University of Duisburg-Essen Carl-Benz-Str. 199 47057 Duisburg Germany
| | - Nils Hartmann
- NETZ - NanoEnergieTechnikZentrum, CENIDE - Center for Nanointegration Duisburg-Essen Carl-Benz-Str. 199 47057 Duisburg Germany
- Interdisciplinary Center for Analytics on the Nanoscale (ICAN), University of Duisburg-Essen Carl-Benz-Str. 199 47057 Duisburg Germany
| | - Ricardo Martínez-Hincapié
- NETZ - NanoEnergieTechnikZentrum, CENIDE - Center for Nanointegration Duisburg-Essen Carl-Benz-Str. 199 47057 Duisburg Germany
- Electrochemistry for Energy Conversion, Max-Planck Institute for Chemical Energy Conversion Stiftstr. 34-36 45470 Mülheim an der Ruhr Germany,
| | - Viktor Čolić
- NETZ - NanoEnergieTechnikZentrum, CENIDE - Center for Nanointegration Duisburg-Essen Carl-Benz-Str. 199 47057 Duisburg Germany
- Electrochemistry for Energy Conversion, Max-Planck Institute for Chemical Energy Conversion Stiftstr. 34-36 45470 Mülheim an der Ruhr Germany,
| | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen Universitätsstr. 745141 Essen Germany
- NETZ - NanoEnergieTechnikZentrum, CENIDE - Center for Nanointegration Duisburg-Essen Carl-Benz-Str. 199 47057 Duisburg Germany
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6
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Li M, Bai L, Jiang S, Sillanpää M, Huang Y, Liu Y. Electrocatalytic transformation of oxygen to hydroxyl radicals via three-electron pathway using nitrogen-doped carbon nanotube-encapsulated nickel nanocatalysts for effective organic decontamination. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131352. [PMID: 37027919 DOI: 10.1016/j.jhazmat.2023.131352] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/29/2023] [Accepted: 04/01/2023] [Indexed: 06/19/2023]
Abstract
The selective electrochemical reduction of oxygen (O2) via 3e- pathway for the production of hydroxyl radicals (HO) is a promising alternative to conventional electro-Fenton process. Here, we developed a nitrogen-doped CNT-encapsulated Ni nanoparticle electrocatalyst (Ni@N-CNT) with high O2 reduction selectivity for the generation of HO•via 3e- pathway. Exposed graphitized N on the CNT shell, and Ni nanoparticles encapsulated within the tip of the N-CNT, played a key role in the generation of H2O2 intermediate (*HOOH) via a 2e- oxygen reduction reaction. Meanwhile, those encapsulated Ni nanoparticles at the tip of the N-CNT facilitated the sequential HO• generation by directly decomposing the electrogenerated *H2O2 in a 1e- reduction reaction on the N-CNT shell without inducing Fenton reaction. Improved bisphenol A (BPA) degradation efficiency were observed when compared with conventional batch system (97.5% vs 66.4%). Trials using Ni@N-CNT in a flow-through configuration demonstrated a complete removal of BPA within 30 min (k = 0.12 min-1) with a limited energy consumption of 0.068 kW·h·g-1 TOC.
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Affiliation(s)
- Mohua Li
- College of Life Science, Taizhou University, Taizhou 318000, China; College of Environmental Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China; College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China
| | - Liang Bai
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China
| | - Shengtao Jiang
- College of Life Science, Taizhou University, Taizhou 318000, China.
| | - Mika Sillanpää
- Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa
| | - Yingping Huang
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China
| | - Yanbiao Liu
- College of Environmental Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China.
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7
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Garcia-Munoz P, Valenzuela L, Wegstein D, Schanz T, Lopez GE, Ruppert AM, Remita H, Bloh JZ, Keller N. Photocatalytic Synthesis of Hydrogen Peroxide from Molecular Oxygen and Water. Top Curr Chem (Cham) 2023; 381:15. [PMID: 37160833 DOI: 10.1007/s41061-023-00423-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 03/28/2023] [Indexed: 05/11/2023]
Abstract
Hydrogen peroxide is a powerful and green oxidant that allows for the oxidation of a wide span of organic and inorganic substrates in liquid media under mild reaction conditions, and forms only molecular water and oxygen as end products. Hydrogen peroxide is therefore used in a wide range of applications, for which the well-documented and established anthraquinone autoxidation process is by far the dominating production method at the industrial scale. As this method is highly energy consuming and environmentally costly, the search for more sustainable synthesis methods is of high interest. To this end, the article reviews the basis and the recent development of the photocatalytic synthesis of hydrogen peroxide. Different oxygen reduction and water oxidation mechanisms are discussed, as well as several kinetic models, and the influence of the main key reaction parameters is itemized. A large range of photocatalytic materials is reviewed, with emphasis on titania-based photocatalysts and on high-prospect graphitic carbon nitride-based systems that take advantage of advanced bulk and surface synthetic approaches. Strategies for enhancing the performances of solar-driven photocatalysts are reported, and the search for new, alternative, photocatalytic materials is detailed. Finally, the promise of in situ photocatalytic synthesis of hydrogen peroxide for water treatment and organic synthesis is described, as well as its coupling with enzymes and the direct in situ synthesis of other technical peroxides.
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Affiliation(s)
- Patricia Garcia-Munoz
- Department of Chemical and Environmental Engineering, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, 28006, Madrid, Spain
| | - Laura Valenzuela
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), CNRS/University of Strasbourg, 25 rue Becquerel, Strasbourg, France
| | - Deborah Wegstein
- DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486, Frankfurt am Main, Germany
| | - Tobias Schanz
- DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486, Frankfurt am Main, Germany
| | - Girlie Eunice Lopez
- Institut de Chimie Physique, CNRS UMR 8000, Université Paris-Saclay, 91405, Orsay, France
| | - Agnieszka M Ruppert
- Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924, Łódź, Poland
| | - Hynd Remita
- Institut de Chimie Physique, CNRS UMR 8000, Université Paris-Saclay, 91405, Orsay, France
| | - Jonathan Z Bloh
- DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486, Frankfurt am Main, Germany
| | - Nicolas Keller
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), CNRS/University of Strasbourg, 25 rue Becquerel, Strasbourg, France.
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8
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Yang Z, Hao Z, Zhou S, Xie P, Wei Z, Zhao S, Gong F. Pd-Sn Alloy Catalysts for Direct Synthesis of Hydrogen Peroxide from H 2 and O 2 in a Microchannel Reactor. ACS APPLIED MATERIALS & INTERFACES 2023; 15:23058-23067. [PMID: 37133527 DOI: 10.1021/acsami.3c01128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Direct synthesis of hydrogen peroxide (DSHP) from H2 and O2 offers a promising alternative to the present commercial anthraquinone method, but it still faces the challenges of low H2O2 productivity, low stability of catalysts, and high risk of explosion. Herein, by loading in a microchannel reactor, the as-synthesized Pd-Sn alloy materials exhibit high catalytic activity for H2O2 production, presenting a H2O2 productivity of 3124 g kgPd-1 h-1. The doped Sn atoms on the surface of Pd not only facilitate the release of H2O2 but also effectively slow down the deactivation of catalysts. Theoretical calculations demonstrate that the Pd-Sn alloy surface has the property of antihydrogen poisoning, showing higher activity and stability than pure Pd catalysts. The deactivation mechanism of the catalyst was elucidated, and the online reactivation method was developed. In addition, we show that the long-life Pd-Sn alloy catalyst can be achieved by supplying an intermittent flow of hydrogen gas. This work provides guidance on how to prepare high performance and stable Pd-Sn alloy catalysts for the continuous and direct synthesis of H2O2.
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Affiliation(s)
- Zaiyong Yang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology and School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi University, Nanning 53004, China
| | - Zhiheng Hao
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology and School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Shunxin Zhou
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology and School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Peng Xie
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology and School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi University, Nanning 53004, China
| | - Zengxi Wei
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology and School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi University, Nanning 53004, China
| | - Shuangliang Zhao
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology and School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi University, Nanning 53004, China
| | - Fuzhong Gong
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology and School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
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Shi J, Wang H, Nie J, Yang T, Ju C, Pu K, Shi J, Zhao T, Li H, Xue J. Alkali-assisted engineering of ultrathin graphite phase carbon nitride nanosheets with carbon vacancy and cyano group for significantly promoting photocatalytic hydrogen peroxide generation under visible light: fast electron transfer channel. J Colloid Interface Sci 2023; 643:47-61. [PMID: 37044013 DOI: 10.1016/j.jcis.2023.03.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/13/2023] [Accepted: 03/31/2023] [Indexed: 04/08/2023]
Abstract
Exfoliating bulk graphite phase carbon nitride (g-C3N4) into 2D nanosheets is considered to be an effective method to enhance its photocatalytic activity. However, optical absorption capacity of the exfoliated g-C3N4 nanosheets are lower than that of the original bulk g-C3N4 due to the quantum size effect. Here, the ultrathin graphite phase carbon nitride nanosheets containing both carbon vacancy and cyano group (UCNS580) were prepared by two-step calcination in air with the assistance of KOH. The formation and position of carbon vacancy and cyano group were first investigated and determined. The simultaneous introduction of carbon vacancy and cyano group not only improved light absorption range and intensity of g-C3N4 nanosheets, but also more importantly constructed a fast transfer channel for photogenerated electrons, further enhancing the separation efficiency and migration ability of photogenerated carriers. The cyano group as the accumulation center of photogenerated electrons and the oxygen adsorption center increased the proportion of one-step two-electrons reaction path to efficiently generate H2O2. As a result, UCNS580 exhibited highly boosted H2O2 generation activity, its H2O2 production yield for 6 h reached 939 µmol/L and the formation rate was up to 4167 µM h-1 g-1, which was in priority in the reported literature under the same conditions.
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Affiliation(s)
- Jianhui Shi
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China.
| | - Hui Wang
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Jianhui Nie
- Department of Mechanical and Electrical Engineering, Jinzhong Vocational and Technical College, Jinzhong, PR China
| | - Tiantian Yang
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Chenke Ju
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Kaikai Pu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Jiating Shi
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Ting Zhao
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Houfen Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Jinbo Xue
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China
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10
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Guo Y, Tong X, Yang N. Photocatalytic and Electrocatalytic Generation of Hydrogen Peroxide: Principles, Catalyst Design and Performance. NANO-MICRO LETTERS 2023; 15:77. [PMID: 36976372 PMCID: PMC10050521 DOI: 10.1007/s40820-023-01052-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Hydrogen peroxide (H2O2) is a high-demand organic chemical reagent and has been widely used in various modern industrial applications. Currently, the prominent method for the preparation of H2O2 is the anthraquinone oxidation. Unfortunately, it is not conducive to economic and sustainable development since it is a complex process and involves unfriendly environment and potential hazards. In this context, numerous approaches have been developed to synthesize H2O2. Among them, photo/electro-catalytic ones are considered as two of the most promising manners for on-site synthesis of H2O2. These alternatives are sustainable in that only water or O2 is required. Namely, water oxidation (WOR) or oxygen reduction (ORR) reactions can be further coupled with clean and sustainable energy. For photo/electro-catalytic reactions for H2O2 generation, the design of the catalysts is extremely important and has been extensively conducted with an aim to obtain ultimate catalytic performance. This article overviews the basic principles of WOR and ORR, followed by the summary of recent progresses and achievements on the design and performance of various photo/electro-catalysts for H2O2 generation. The related mechanisms for these approaches are highlighted from theoretical and experimental aspects. Scientific challenges and opportunities of engineering photo/electro-catalysts for H2O2 generation are also outlined and discussed.
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Affiliation(s)
- Yan Guo
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Xili Tong
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, People's Republic of China.
| | - Nianjun Yang
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany.
- Department of Chemistry, Hasselt University, 3590, Diepenbeek, Belgium.
- IMO-IMOMEC, Hasselt University, 3590, Diepenbeek, Belgium.
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11
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Zheng R, Meng Q, Zhang L, Ge J, Liu C, Xing W, Xiao M. Co-based Catalysts for Selective H 2 O 2 Electroproduction via 2-electron Oxygen Reduction Reaction. Chemistry 2023; 29:e202203180. [PMID: 36378121 DOI: 10.1002/chem.202203180] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/13/2022] [Accepted: 11/13/2022] [Indexed: 11/16/2022]
Abstract
Electrochemical production of hydrogen peroxide (H2 O2 ) via two-electron oxygen reduction reaction (ORR) process is emerging as a promising alternative method to the conventional anthraquinone process. To realize high-efficiency H2 O2 electrosynthesis, robust and low cost electrocatalysts have been intensively pursued, among which Co-based catalysts attract particular research interests due to the earth-abundance and high selectivity. Here, we provide a comprehensive review on the advancement of Co-based electrocatalyst for H2 O2 electroproduction. The fundamental chemistry of 2-electron ORR is discussed firstly for guiding the rational design of electrocatalysts. Subsequently, the development of Co-based electrocatalysts involving nanoparticles, compounds and single atom catalysts is summarized with the focus on active site identification, structure regulation and mechanism understanding. Moreover, the current challenges and future directions of the Co-based electrocatalysts are briefly summarized in this review.
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Affiliation(s)
- Ruixue Zheng
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, 130022, Jilin, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China
| | - Qinglei Meng
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, 130022, Jilin, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China
| | - Li Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, 130022, Jilin, P. R. China
| | - Junjie Ge
- School of Chemistry and Material Science, University of Science and Technology of China Hefei, 230026, Anhui, P. R. China
| | - Changpeng Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, 130022, Jilin, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China
| | - Wei Xing
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, 130022, Jilin, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China
| | - Meiling Xiao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, 130022, Jilin, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China
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12
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Ogo S, Yatabe T, Tome T, Takenaka R, Shiota Y, Kato K. Safe, One-Pot, Homogeneous Direct Synthesis of H 2O 2. J Am Chem Soc 2023; 145:4384-4388. [PMID: 36798970 PMCID: PMC9983002 DOI: 10.1021/jacs.2c13149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Hydrogen peroxide is an environmentally friendly oxidizing agent but current synthetic methods are wasteful. This is a result of the high flammability of H2/O2 mixtures and/or the requirement for cocatalysts. In this paper, we report the synthesis of H2O2 by means of a homogeneous catalyst, which allows a safe, one-pot synthesis in water, using only H2 and O2. This catalyst is capable of removing electrons from H2, storing them for the reduction of O2, and then permitting the protonation of the reduced oxygen to H2O2. The turnover number (TON) is 910 under an H2/O2 (95/5) atmosphere (1.9 MPa) for 12 h at 23 °C, which is the highest of any homogeneous catalyst. Furthermore, we propose a reaction mechanism based on two crystal structures.
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Affiliation(s)
- Seiji Ogo
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan,International
Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan,Center
for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan,
| | - Takeshi Yatabe
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan,International
Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan,Center
for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Tamon Tome
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Riko Takenaka
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshihito Shiota
- Institute
for Materials Chemistry and Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kenji Kato
- Center
for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan,Mitsubishi
Gas Chemical Company Inc., Tokyo 100-8324, Japan
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13
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Lewis RJ, Ueura K, Liu X, Fukuta Y, Qin T, Davies TE, Morgan DJ, Stenner A, Singleton J, Edwards JK, Freakley SJ, Kiely CJ, Chen L, Yamamoto Y, Hutchings GJ. Selective Ammoximation of Ketones via In Situ H 2O 2 Synthesis. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Richard J. Lewis
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K
| | - Kenji Ueura
- UBE Corporation, 1978-5, Kogushi, Ube, Yamaguchi755-8633, Japan
| | - Xi Liu
- School of Chemistry and Chemical, In-situ Centre for Physical Sciences, Shanghai Jiao Tong University, 200240Shanghai, P. R. China
| | - Yukimasa Fukuta
- UBE Corporation, 1978-5, Kogushi, Ube, Yamaguchi755-8633, Japan
| | - Tian Qin
- School of Chemistry and Chemical, In-situ Centre for Physical Sciences, Shanghai Jiao Tong University, 200240Shanghai, P. R. China
| | - Thomas E. Davies
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K
| | - David J. Morgan
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K
- HarwellXPS, Research Complex at Harwell (RCaH), DidcotOX11 0FA, U.K
| | - Alex Stenner
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K
| | - James Singleton
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K
| | - Jennifer K. Edwards
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K
| | - Simon J. Freakley
- Department of Chemistry, University of Bath, Claverton Down, BathBA2 7AY, U.K
| | - Christopher J. Kiely
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania18015, United States
| | - Liwei Chen
- School of Chemistry and Chemical, In-situ Centre for Physical Sciences, Shanghai Jiao Tong University, 200240Shanghai, P. R. China
- School of Chemistry and Chemical, Frontiers Science Centre for Transformative Molecules, Shanghai200240, P.R. China
| | | | - Graham J. Hutchings
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K
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14
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Dummer NF, Willock DJ, He Q, Howard MJ, Lewis RJ, Qi G, Taylor SH, Xu J, Bethell D, Kiely CJ, Hutchings GJ. Methane Oxidation to Methanol. Chem Rev 2022; 123:6359-6411. [PMID: 36459432 PMCID: PMC10176486 DOI: 10.1021/acs.chemrev.2c00439] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
The direct transformation of methane to methanol remains a significant challenge for operation at a larger scale. Central to this challenge is the low reactivity of methane at conditions that can facilitate product recovery. This review discusses the issue through examination of several promising routes to methanol and an evaluation of performance targets that are required to develop the process at scale. We explore the methods currently used, the emergence of active heterogeneous catalysts and their design and reaction mechanisms and provide a critical perspective on future operation. Initial experiments are discussed where identification of gas phase radical chemistry limited further development by this approach. Subsequently, a new class of catalytic materials based on natural systems such as iron or copper containing zeolites were explored at milder conditions. The key issues of these technologies are low methane conversion and often significant overoxidation of products. Despite this, interest remains high in this reaction and the wider appeal of an effective route to key products from C-H activation, particularly with the need to transition to net carbon zero with new routes from renewable methane sources is exciting.
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Affiliation(s)
- Nicholas F. Dummer
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, United Kingdom
| | - David J. Willock
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, United Kingdom
| | - Qian He
- Department of Materials Science and Engineering, National University of Singapore, Singapore117575, Singapore
| | - Mark J. Howard
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, United Kingdom
| | - Richard J. Lewis
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, United Kingdom
| | - Guodong Qi
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan430071, P. R. China
- University of Chinese Academy of Sciences, Beijing100049, P. R. China
| | - Stuart H. Taylor
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, United Kingdom
| | - Jun Xu
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan430071, P. R. China
- University of Chinese Academy of Sciences, Beijing100049, P. R. China
| | - Don Bethell
- Department of Chemistry, University of Liverpool, Crown Street, LiverpoolL69 7ZD, United Kingdom
| | - Christopher J. Kiely
- Department of Materials Science and Engineering, Lehigh University, 5 East Packer Avenue, Bethlehem, Pennsylvania18015, United States
| | - Graham J. Hutchings
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, United Kingdom
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15
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Tran XT, Vo VLN, Chung YM. Strategy for improving H2O2 selectivity during direct H2O2 synthesis: Using palladium catalyst supported on UiO-66 functionalized with hydrophobic linker. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Sandri F, De Boni F, Marelli M, Sedona F, Causin V, Centomo P, Zecca M. The role of acetonitrile in the direct synthesis of hydrogen peroxide over palladium supported by ion-exchange resins. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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17
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Improving Catalytic Activity towards the Direct Synthesis of H2O2 through Cu Incorporation into AuPd Catalysts. Catalysts 2022. [DOI: 10.3390/catal12111396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
With a focus on catalysts prepared by an excess-chloride wet impregnation procedure and supported on the zeolite ZSM-5(30), the introduction of low concentrations of tertiary base metals, in particular Cu, into supported AuPd nanoparticles can be observed to enhance catalytic activity towards the direct synthesis of H2O2. Indeed the optimal catalyst formulation (1%AuPd(0.975)Cu(0.025)/ZSM-5) is able to achieve rates of H2O2 synthesis (115 molH2O2kgcat−1h−1) approximately 1.7 times that of the bi-metallic analogue (69 molH2O2kgcat−1h−1) and rival that previously reported over comparable materials which use Pt as a dopant. Notably, the introduction of Cu at higher loadings results in an inhibition of performance. Detailed analysis by CO-DRFITS and XPS reveals that the improved performance observed over the optimal catalyst can be attributed to the electronic modification of the Pd species and the formation of domains of a mixed Pd2+/Pd0 oxidation state as well as structural changed within the nanoalloy.
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18
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Jiang D, Shi Y, Zhou L, Ma J, Pan H, Lin Q. Promotional Effect of Nitrogen-doped and Pore Structure for the direct synthesis of Hydrogen Peroxide from Hydrogen and Oxygen by Pd/C Catalyst at Ambient Pressure. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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19
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Tu S, Ning Z, Duan X, Zhao X, Chang L. Efficient electrochemical hydrogen peroxide generation using TiO2/rGO catalyst and its application in electro-Fenton degradation of methyl orange. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Brehm J, Lewis RJ, Richards T, Qin T, Morgan DJ, Davies TE, Chen L, Liu X, Hutchings GJ. Enhancing the Chemo-Enzymatic One-Pot Oxidation of Cyclohexane via In Situ H 2O 2 Production over Supported Pd-Based Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Joseph Brehm
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Richard J. Lewis
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Thomas Richards
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Tian Qin
- In-situ Centre for Physical Sciences, School of Chemistry and Chemical, Frontiers Science Centre for Transformative Molecules, Shanghai 200240, P. R. China
| | - David J. Morgan
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
- HarwellXPS, Research Complex at Harwell (RCaH), Didcot OX11 OFA, United Kingdom
| | - Thomas E. Davies
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Liwei Chen
- In-situ Centre for Physical Sciences, School of Chemistry and Chemical, Frontiers Science Centre for Transformative Molecules, Shanghai 200240, P. R. China
- School of Chemistry and Chemical, Frontiers Science Centre for Transformative Molecules, Shanghai 200240, P. R. China
| | - Xi Liu
- In-situ Centre for Physical Sciences, School of Chemistry and Chemical, Frontiers Science Centre for Transformative Molecules, Shanghai 200240, P. R. China
| | - Graham J. Hutchings
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
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21
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Huang A, Delima RS, Kim Y, Lees EW, Parlane FGL, Dvorak DJ, Rooney MB, Jansonius RP, Fink AG, Zhang Z, Berlinguette CP. Direct H 2O 2 Synthesis, without H 2 Gas. J Am Chem Soc 2022; 144:14548-14554. [PMID: 35917450 DOI: 10.1021/jacs.2c03158] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report here the direct hydrogenation of O2 gas to form hydrogen peroxide (H2O2) using a membrane reactor without H2 gas. Hydrogen is sourced from water, and the reactor is driven by electricity. Hydrogenation chemistry is achieved using a hydrogen-permeable Pd foil that separates an electrolysis chamber that generates reactive H atoms, from a hydrogenation chamber where H atoms react with O2 to form H2O2. Our results show that the concentration of H2O2 can be increased ∼8 times (from 56.5 to 443 mg/L) by optimizing the ratio of methanol-to-water in the chemical chamber, and through catalyst design. We demonstrate that the concentration of H2O2 is acutely sensitive to the H2O2 decomposition rate. This decomposition rate can be minimized by using AuPd alloy catalysts instead of pure Pd. This study presents a new pathway to directly synthesize H2O2 using water electrolysis without ever using H2 gas.
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Affiliation(s)
- Aoxue Huang
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Roxanna S Delima
- Stewart Blusson Quantum Matter Institute, The University of British Columbia, 2355 East Mall, Vancouver, British Columbia V6T 1Z4, Canada.,Department of Chemical & Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada
| | - Yongwook Kim
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Eric W Lees
- Department of Chemical & Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada
| | - Fraser G L Parlane
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada.,Stewart Blusson Quantum Matter Institute, The University of British Columbia, 2355 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
| | - David J Dvorak
- Stewart Blusson Quantum Matter Institute, The University of British Columbia, 2355 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
| | - Michael B Rooney
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Ryan P Jansonius
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Arthur G Fink
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Zishuai Zhang
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Curtis P Berlinguette
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada.,Stewart Blusson Quantum Matter Institute, The University of British Columbia, 2355 East Mall, Vancouver, British Columbia V6T 1Z4, Canada.,Department of Chemical & Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada.,Canadian Institute for Advanced Research (CIFAR), 661 University Avenue, Toronto, Ontario M5G 1M1, Canada
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22
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Ma R, Zhang Z, Iyoda T, Wang F. Electrochemical grafting of a pyridinium‐conjugated assembly on graphite for H2O2 electrochemical production. ChemElectroChem 2022. [DOI: 10.1002/celc.202200395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Rui Ma
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials Chaoyang District North Third Ring Road 15 CHINA
| | - Zhengping Zhang
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials CHINA
| | - Tomokazu Iyoda
- Doshisha university Harris Science Research Institute, Doshisha University 1-3 Miyakodani, Tatara, Kyotanabe, Kyoto 611-0394, Japan JAPAN
| | - Feng Wang
- Beijing University of Chemical Technology Chaoyang District North Third Ring Road 15 CHINA
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23
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Fast microwave-assisted synthesis of iron–palladium catalysts supported on graphite for the direct synthesis of H2O2. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.06.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Lewis RJ, Ueura K, Liu X, Fukuta Y, Davies TE, Morgan DJ, Chen L, Qi J, Singleton J, Edwards JK, Freakley SJ, Kiely CJ, Yamamoto Y, Hutchings GJ. Highly efficient catalytic production of oximes from ketones using in situ-generated H 2O 2. Science 2022; 376:615-620. [PMID: 35511983 DOI: 10.1126/science.abl4822] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The ammoximation of cyclohexanone using preformed hydrogen peroxide (H2O2) is currently applied commercially to produce cyclohexanone oxime, an important feedstock in nylon-6 production. We demonstrate that by using supported gold-palladium (AuPd) alloyed nanoparticles in conjunction with a titanium silicate-1 (TS-1) catalyst, H2O2 can be generated in situ as needed, producing cyclohexanone oxime with >95% selectivity, comparable to the current industrial route. The ammoximation of several additional simple ketones is also demonstrated. Our approach eliminates the need to transport and store highly concentrated, stabilized H2O2, potentially achieving substantial environmental and economic savings. This approach could form the basis of an alternative route to numerous chemical transformations that are currently dependent on a combination of preformed H2O2 and TS-1, while allowing for considerable process intensification.
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Affiliation(s)
- Richard J Lewis
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Kenji Ueura
- UBE Corporation, 1978-5, Kogushi, Ube, Yamaguchi 755-8633, Japan
| | - Xi Liu
- School of Chemistry and Chemical, In-situ Centre for Physical Sciences, Shanghai Jiao Tong University, Shanghai 200240, P.R. China.,SynCat@Beijing, Synfuels China Technology Co. Ltd., Beijing 101407, P.R. China
| | - Yukimasa Fukuta
- UBE Corporation, 1978-5, Kogushi, Ube, Yamaguchi 755-8633, Japan
| | - Thomas E Davies
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - David J Morgan
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK.,Harwell XPS, Research Complex at Harwell (RCaH), Didcot OX11 0FA, UK
| | - Liwei Chen
- School of Chemistry and Chemical, In-situ Centre for Physical Sciences, Shanghai Jiao Tong University, Shanghai 200240, P.R. China.,School of Chemistry and Chemical Engineering, Frontiers Science Centre for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Jizhen Qi
- i-Lab, CAS Centre for Excellence in Nanoscience, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, P.R. China
| | - James Singleton
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Jennifer K Edwards
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Simon J Freakley
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Christopher J Kiely
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015, USA
| | - Yasushi Yamamoto
- UBE Corporation, 1978-5, Kogushi, Ube, Yamaguchi 755-8633, Japan
| | - Graham J Hutchings
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
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25
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Paris CB, Howe AG, Lewis RJ, Hewes D, Morgan DJ, He Q, Edwards JK. Impact of the Experimental Parameters on Catalytic Activity When Preparing Polymer Protected Bimetallic Nanoparticle Catalysts on Activated Carbon. ACS Catal 2022; 12:4440-4454. [PMID: 35465244 PMCID: PMC9016708 DOI: 10.1021/acscatal.1c05904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/16/2022] [Indexed: 01/18/2023]
Abstract
Sol immobilization is used to produce bimetallic catalysts with higher activity to monometallic counterparts for a wide range of environmental and commercial catalytic transformations. Analysis of complementary surface characterization (XPS, Boehm's titration, and zeta potential measurements) was used to elucidate alterations in the surface functionality of two activated carbon supports during acid exposure. When considered in parallel to the experimentally determined electrostatic and conformational changes of the polymer surrounding the nanoparticles, an electrostatic model is proposed describing polymer protected nanoparticle deposition with several polymer-carbon support examples described. Consideration of the electrostatic interactions ensures full deposition of the polymer protected nanoparticles and at the same time influences the structure of the bimetallic nanoparticle immobilized on the support. The normalized activity of AuPd catalysts prepared with 133 ppm H2SO4 has a much higher activity for the direct synthesis of hydrogen peroxide compared to catalysts prepared in the absence of acid. Detailed characterization by XPS indicates that the surface becomes enriched in Au in the Au-Pd samples prepared with acid, suggesting an improved dispersion of smaller bimetallic nanoparticles, rich in Au, that are known to be highly active for the direct synthesis reaction. Subsequent microscopy measurements confirmed this hypothesis, with the acid addition catalysts having a mean particle size ∼2 nm smaller than the zero acid counterparts. The addition of acid did not result in a morphology change, and random alloyed bimetallic AuPd nanoparticles were observed in catalysts prepared by sol immobilization in the presence and absence of acid. This work shows that the deposition of polymer protected AuPd nanoparticles onto activated carbon is heavily influenced by the acid addition step in the sol immobilization process. The physicochemical properties of both the polymer and the activated carbon support should be considered when designing a bimetallic nanoparticle catalyst by sol immobilization to ensure the optimum performance of the final catalyst.
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Affiliation(s)
- Charlie B. Paris
- Cardiff Catalysis Institute (CCI), School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Alexander G. Howe
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Blk E2, #05-01, 9 Engineering Drive 1, 119077 Singapore
| | - Richard James Lewis
- Cardiff Catalysis Institute (CCI), School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
- Max Planck Centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Daniel Hewes
- Cardiff Catalysis Institute (CCI), School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
- Max Planck Centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - David J. Morgan
- Cardiff Catalysis Institute (CCI), School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
- HarwellXPS-the EPSRC National Facility for Photoelectron Spectroscopy, Research Complex at Harwell (RCaH), Didcot, Oxon. OX11 0FA, U.K
| | - Qian He
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Blk E2, #05-01, 9 Engineering Drive 1, 119077 Singapore
| | - Jennifer K. Edwards
- Cardiff Catalysis Institute (CCI), School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
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26
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Methane oxidation by green oxidant to methanol over zeolite-based catalysts. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.08.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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27
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Ji C, Wang H, Sun S, Li Q, Zou JJ, Yu S, Shi H, Nie G, Liu S. One-pot synthesis of 2-ethylanthraquinone from phthalic anhydride and ethylbenzene over a Sc-modified Hβ catalyst. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Richards T, Lewis RJ, Morgan DJ, Hutchings GJ. The Direct Synthesis of Hydrogen Peroxide Over Supported Pd-Based Catalysts: An Investigation into the Role of the Support and Secondary Metal Modifiers. Catal Letters 2022. [DOI: 10.1007/s10562-022-03967-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AbstractThe direct synthesis of H2O2 from molecular H2 and O2 over Pd-based catalysts, prepared via an industrially relevant, excess chloride co-impregnation procedure is investigated. Initial studies into the well-established PdAu system demonstrated the key role of Pd: Au ratio on catalytic activity, under conditions that have previously been found to be optimal for H2O2 formation. Further investigations using the optimal Pd: Au ratio identified the role of the catalyst support in controlling particle size and Pd oxidation state and thus catalytic performance. Subsequently, with an aim to replace Au with cheaper alternatives, the alloying of Pd with more abundant secondary metals is explored.
Graphical Abstract
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29
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Bates JS, Biswas S, Suh SE, Johnson MR, Mondal B, Root TW, Stahl SS. Chemical and Electrochemical O 2 Reduction on Earth-Abundant M-N-C Catalysts and Implications for Mediated Electrolysis. J Am Chem Soc 2022; 144:922-927. [PMID: 34985869 PMCID: PMC8833842 DOI: 10.1021/jacs.1c11126] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
M-N-C catalysts, incorporating non-precious-metal ions (e.g. M = Fe, Co) within a nitrogen-doped carbon support, have been the focus of broad interest for electrochemical O2 reduction and aerobic oxidation reactions. The present study explores the mechanistic relationship between the O2 reduction mechanism under electrochemical and chemical conditions. Chemical O2 reduction is investigated via the aerobic oxidation of a hydroquinone, in which the O-H bonds supply the protons and electrons needed for O2 reduction to water. Mechanistic studies have been conducted to elucidate whether the M-N-C catalyst couples two independent half-reactions (IHR), similar to electrode-mediated processes, or mediates a direct inner-sphere reaction (ISR) between O2 and the organic molecule. Kinetic data support the latter ISR pathway. This conclusion is reinforced by rate/potential correlations that reveal significantly different Tafel slopes, implicating different mechanisms for chemical and electrochemical O2 reduction.
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Affiliation(s)
- Jason S. Bates
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Avenue, Madison, WI 53706, USA
| | - Sourav Biswas
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Avenue, Madison, WI 53706, USA
| | - Sung-Eun Suh
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Avenue, Madison, WI 53706, USA
| | - Mathew R. Johnson
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Avenue, Madison, WI 53706, USA
| | - Biswajit Mondal
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Avenue, Madison, WI 53706, USA
| | - Thatcher W. Root
- Department of Chemical and Biological Engineering, University of Wisconsin–Madison, 1415 Engineering Drive, Madison, WI 53706, USA,Corresponding Authors: ;
| | - Shannon S. Stahl
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Avenue, Madison, WI 53706, USA,Corresponding Authors: ;
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30
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Zhang M, Xu H, Luo Y, Zhu J, Cheng D. Enhancing the catalytic performance of PdAu catalysts by W-induced strong interaction for the direct synthesis of H 2O 2. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00112h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
W-Induced strong interaction with PdAu is the key to the enhanced catalytic performance for the direct synthesis of H2O2, with WO3 species partially encapsulating the PdAu particles.
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Affiliation(s)
- Meijia Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Haoxiang Xu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Yibin Luo
- State Key Laboratory of Catalytic Materials and Reaction Engineering, RIPP, SINOPEC, Beijing 100083, People's Republic of China
| | - Jiqin Zhu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Daojian Cheng
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
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31
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Shi H, Wu Q, Wu Z, Liu Y, Wang X, Huang H, Liu Y, Kang Z. A metal free catalyst for efficient and stable one-step photocatalytic production of pure hydrogen peroxide. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00008c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen peroxide (H2O2) is widely used as a green and clean energy. The pure H2O2 solution has attracted much attention for its special applications in many fields. Photocatalytic water splitting...
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32
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Barnes A, Lewis R, Morgan DJ, Davies T, Hutchings G. Enhancing catalytic performance of AuPd catalysts towards the direct synthesis of H2O2 through incorporation of base metals. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01962g] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The introduction of small quantities of tertiary base metals into supported AuPd nanoparticles is found to result in improved catalytic performance towards the direct synthesis of H2O2 compared to the...
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33
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Shi Y, Jiang D, Zhao J, Wu L, Zhao C, Ma J, Pan H, Lin Q. Synthesis and performance of Pd Multi@HCS catalysts with Pd nanoparticles partially embedded in the inner wall of hollow carbon spheres for the direct synthesis of hydrogen peroxide from hydrogen and oxygen. NEW J CHEM 2022. [DOI: 10.1039/d2nj01778d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PdMulti@HCS catalysts ensure the maximum exposure of Pd active sites and optimal transfer and diffusion ability for H2O2 synthesis.
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Affiliation(s)
- Yongyong Shi
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
| | - Donghai Jiang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550003, China
| | - Jingyun Zhao
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
| | - Lang Wu
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
| | - Chenchen Zhao
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
| | - Jun Ma
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
| | - Hongyan Pan
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
| | - Qian Lin
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
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34
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Wu Q, Zhou S, Fu C, Zhang J, Chen B, Pan H, Lin Q. Direct synthesis of H 2O 2 over Pd–M@HCS (M = Sn, Fe, Co, or Ni): effects of non-noble metal M on the electronic state and particle size of Pd. NEW J CHEM 2022. [DOI: 10.1039/d2nj01074g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Direct synthesis of H2O2 in a yolk–shell structure assisted by M (M = Fe,Co,Ni,Sn) metal doping.
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Affiliation(s)
- Quansheng Wu
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Guizhou University, and Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
| | - Songhua Zhou
- Guizhou Tianfu Chemical Co.,LTD, Qiannan, Guizhou 558000, China
| | - Chengbing Fu
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Guizhou University, and Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
| | - Jiesong Zhang
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Guizhou University, and Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
| | - Bo Chen
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Guizhou University, and Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
| | - Hongyan Pan
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Guizhou University, and Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- State key laboratory of efficient utilization for low grade phosphate rock and its associated resources, Guiyang, Guizhou 550005, China
| | - Qian Lin
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Guizhou University, and Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
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35
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Santos A, Lewis RJ, Morgan DJ, Davies TE, Hampton E, Gaskin P, Hutchings GJ. The oxidative degradation of phenol via in situ H 2O 2 synthesis using Pd supported Fe-modified ZSM-5 catalysts. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00283c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bifunctional Pd/Fe-ZSM-5 catalysts promote pollutant degradation through in situ H2O2 synthesis.
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Affiliation(s)
- Alba Santos
- Max Planck centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Richard J. Lewis
- Max Planck centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - David J. Morgan
- Max Planck centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
- HarwellXPS, Research Complex at Harwell (RCaH), Didcot, OX11 OFA, UK
| | - Thomas E. Davies
- Max Planck centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Euan Hampton
- Dŵr Cymru Welsh Water, Pentwyn Road, Nelson, Treharris, CF46 6LY, UK
| | - Paul Gaskin
- Dŵr Cymru Welsh Water, Pentwyn Road, Nelson, Treharris, CF46 6LY, UK
| | - Graham J. Hutchings
- Max Planck centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
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36
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Enhanced oxygen transfer over bifunctional Mo-based oxametallacycle catalyst for epoxidation of propylene. J Colloid Interface Sci 2021; 611:564-577. [PMID: 34971967 DOI: 10.1016/j.jcis.2021.12.092] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/17/2022]
Abstract
Activation of inert propylene to produce propylene oxide (PO) is critical, but still faces some challenges in realizing higher PO selectivity and productivity. Herein, a temperature-controlled phase transfer catalyst (MoOO·DMF) is prepared for the liquid-phase epoxidation of propylene with tert-butyl hydroperoxide (TBHP) as oxidant, which exhibit the selectivity of 90.6% and the productivity of 1286.42·h-1 for PO (catalyst/propylene = 0.77 mol‰). Some experimental factors (solvent types, reaction temperature, contact time, the dosage of catalyst, TBHP and substrate) were investigated, and the reaction kinetics and thermodynamics are discussed. MoOO·DMF has the characteristic of both homogeneous and heterogeneous catalysts, which can be dissolved in the solvent at higher temperatures and separated from the solvent after reaction by lowering the temperature. Importantly, MoOO·DMF has a wonderful epoxidation performance for many olefins (e.g., light olefins, linear α-olefins, cyclic olefins and others). The mechanisms are proved by in-situ FT-IR, ESR and HRMS spectrum to be the selective oxygen transfer from tert-butyl peroxide radical and the MoOO bridge in MoOO·DMF to propylene. Density functional theory (DFT) calculations show that the MoOO bridge in catalyst is the key role for the activation of both the OH bond in TBHP and the CC bond in propylene, thus enhanced the epoxidation of propylene.
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37
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Deschner BJ, Doronkin DE, Sheppard TL, Rabsch G, Grunwaldt JD, Dittmeyer R. Continuous-flow reactor setup for operando x-ray absorption spectroscopy of high pressure heterogeneous liquid-solid catalytic processes. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:124101. [PMID: 34972445 DOI: 10.1063/5.0057011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 11/13/2021] [Indexed: 06/14/2023]
Abstract
A continuous-flow reactor and a continuous-flow setup compatible with operando x-ray absorption spectroscopy (XAS) were designed for safely studying liquid-phase reactions on solid high atomic number transition metal catalysts (e.g., Au, Pd, and Pt) under pressures up to 100 bars with temperatures up to 100 °C. The reactor has a stainless-steel body, 2 mm thick polyether ether ketone (PEEK) x-ray windows, and a low internal volume of 0.31 ml. The rectangular chamber (6 × 5 × 1 mm3) between the PEEK x-ray windows allows us to perform XAS studies of packed beds or monoliths in the transmission mode at any position in the cell over a length of 60 mm. A 146° wide-angle beam access also allows recording complementary x-ray fluorescence or x-ray diffraction signals. The setup was engineered to continuously feed a single-phase liquid flow saturated with one or more gaseous reactants to the liquid-solid XAS reactor containing no free gas phase for enhanced process safety and sample homogeneity. The proof of concept for the continuous-flow XAS cell and high-pressure setup was provided by operando XAS measurements during the direct synthesis of hydrogen peroxide at room temperature and 40 bars using a 35 ± 5 mg catalyst (1 wt. % Pd/TiO2) and inline near-infrared spectroscopy. The experiments prove that the system is well suited to follow the reaction in the liquid phase while recording high-quality XAS data, paving the way for detailed studies on the catalyst structure and structure-activity relationships.
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Affiliation(s)
- Benedikt J Deschner
- Institute for Micro Process Engineering, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Dmitry E Doronkin
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Thomas L Sheppard
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Georg Rabsch
- Institute for Micro Process Engineering, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Jan-Dierk Grunwaldt
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Roland Dittmeyer
- Institute for Micro Process Engineering, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
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38
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Lewis RJ, Ntainjua EN, Morgan DJ, Davies TE, Carley AF, Freakley SJ, Hutchings GJ. Improving the performance of Pd based catalysts for the direct synthesis of hydrogen peroxide via acid incorporation during catalyst synthesis. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2021.106358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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39
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Bu Y, Wang Y, Han GF, Zhao Y, Ge X, Li F, Zhang Z, Zhong Q, Baek JB. Carbon-Based Electrocatalysts for Efficient Hydrogen Peroxide Production. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2103266. [PMID: 34562030 DOI: 10.1002/adma.202103266] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/30/2021] [Indexed: 06/13/2023]
Abstract
Hydrogen peroxide (H2 O2 ) is an environment-friendly and efficient oxidant with a wide range of applications in different industries. Recently, the production of hydrogen peroxide through direct electrosynthesis has attracted widespread research attention, and has emerged as the most promising method to replace the traditional energy-intensive multi-step anthraquinone process. In ongoing efforts to achieve highly efficient large-scale electrosynthesis of H2 O2 , carbon-based materials have been developed as 2e- oxygen reduction reaction catalysts, with the benefits of low cost, abundant availability, and optimal performance. This review comprehensively introduces the strategies for optimizing carbon-based materials toward H2 O2 production, and the latest advances in carbon-based hybrid catalysts. The active sites of the carbon-based materials and the influence of coordination heteroatom doping on the selectivity of H2 O2 are extensively analyzed. In particular, the appropriate design of functional groups and understanding the effect of the electrolyte pH are expected to further improve the selective efficiency of producing H2 O2 via the oxygen reduction reaction. Methods for improving catalytic activity by interface engineering and reaction kinetics are summarized. Finally, the challenges carbon-based catalysts face before they can be employed for commercial-scale H2 O2 production are identified, and prospects for designing novel electrochemical reactors are proposed.
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Affiliation(s)
- Yunfei Bu
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), UNIST-NUIST Research Center of Environment and Energy, (UNNU), School of Environmental Science and Technology, Nanjing University of Information Science and Technology (NUIST), Nanjing, 210044, P. R. China
| | - Yaobin Wang
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), UNIST-NUIST Research Center of Environment and Energy, (UNNU), School of Environmental Science and Technology, Nanjing University of Information Science and Technology (NUIST), Nanjing, 210044, P. R. China
| | - Gao-Feng Han
- School of Energy and Chemical Engineering/Center for Dimension Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan, 44919, South Korea
| | - Yunxia Zhao
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), UNIST-NUIST Research Center of Environment and Energy, (UNNU), School of Environmental Science and Technology, Nanjing University of Information Science and Technology (NUIST), Nanjing, 210044, P. R. China
| | - Xinlei Ge
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), UNIST-NUIST Research Center of Environment and Energy, (UNNU), School of Environmental Science and Technology, Nanjing University of Information Science and Technology (NUIST), Nanjing, 210044, P. R. China
| | - Feng Li
- School of Energy and Chemical Engineering/Center for Dimension Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan, 44919, South Korea
| | - Zhihui Zhang
- Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, P. R. China
| | - Qin Zhong
- School of Chemical and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China
| | - Jong-Beom Baek
- School of Energy and Chemical Engineering/Center for Dimension Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan, 44919, South Korea
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40
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Belykh LB, Skripov NI, Sterenchuk TP, Akimov VV, Tauson VL, Milenkaya EA, Schmidt FK. Structurally Disordered Pd−P Nanoparticles as Effective Catalysts for the Production of Hydrogen Peroxide by the Anthraquinone Method. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Lyudmila B. Belykh
- Department of Chemistry Irkutsk State University 1 K. Marx Str. 664003 Irkutsk Russia
| | - Nikita I. Skripov
- Department of Chemistry Irkutsk State University 1 K. Marx Str. 664003 Irkutsk Russia
| | - Tatyana P. Sterenchuk
- Department of Chemistry Irkutsk State University 1 K. Marx Str. 664003 Irkutsk Russia
| | - Vladlen V. Akimov
- A.P. Vinogradov Institute of Geochemistry SB RAS 1a Favorsky str. 664033 Irkutsk Russia
| | - Vladimir L. Tauson
- A.P. Vinogradov Institute of Geochemistry SB RAS 1a Favorsky str. 664033 Irkutsk Russia
| | - Elena A. Milenkaya
- Department of Chemistry Irkutsk State University 1 K. Marx Str. 664003 Irkutsk Russia
| | - Fedor K. Schmidt
- Department of Chemistry Irkutsk State University 1 K. Marx Str. 664003 Irkutsk Russia
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41
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Etim UJ, Bai P, Gazit OM, Zhong Z. Low-Temperature Heterogeneous Oxidation Catalysis and Molecular Oxygen Activation. CATALYSIS REVIEWS 2021. [DOI: 10.1080/01614940.2021.1919044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ubong J. Etim
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
| | - Peng Bai
- College of Chemical Engineering, China University of Petroleum, Qingdao, China
| | - Oz M. Gazit
- Wolfson Faculty of Chemical Engineering, Technion – Israel Institute of Technology, Haifa, Israel
| | - Ziyi Zhong
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
- Technion Israel Institute of Technology (IIT), Haifa, Israel
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42
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Ye H, Yang L, Nie X, Liu K, Yang S, Zhou Y, Dong F, He H, Yang H. Dual-functional water splitting: Electro-fenton-like pollutants degradation from anode reaction and hydrogen fuel production from cathode reaction. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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43
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Ji X, Chen D, Peng L, Frison F, Valle CD, Tubaro C, Zecca M, Centomo P, Ye D, Chen P. Sustainable direct H2O2 synthesis over Pd catalyst supported on mesoporous carbon: The effect of surface nitrogen functionality. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.12.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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44
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Kapil N, Weissenberger T, Cardinale F, Trogadas P, Nijhuis TA, Nigra MM, Coppens M. Precisely Engineered Supported Gold Clusters as a Stable Catalyst for Propylene Epoxidation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nidhi Kapil
- Centre for Nature Inspired Engineering and Department of Chemical Engineering University College London London WC1E 7JE UK
| | - Tobias Weissenberger
- Centre for Nature Inspired Engineering and Department of Chemical Engineering University College London London WC1E 7JE UK
| | - Fabio Cardinale
- Centre for Nature Inspired Engineering and Department of Chemical Engineering University College London London WC1E 7JE UK
| | - Panagiotis Trogadas
- Centre for Nature Inspired Engineering and Department of Chemical Engineering University College London London WC1E 7JE UK
| | | | - Michael M. Nigra
- Department of Chemical Engineering University of Utah Salt Lake City UT 84112 USA
| | - Marc‐Olivier Coppens
- Centre for Nature Inspired Engineering and Department of Chemical Engineering University College London London WC1E 7JE UK
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45
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Fukuzumi S, Lee YM, Nam W. Recent progress in production and usage of hydrogen peroxide. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63767-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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46
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Kapil N, Weissenberger T, Cardinale F, Trogadas P, Nijhuis TA, Nigra MM, Coppens MO. Precisely Engineered Supported Gold Clusters as a Stable Catalyst for Propylene Epoxidation. Angew Chem Int Ed Engl 2021; 60:18185-18193. [PMID: 34085370 PMCID: PMC8456944 DOI: 10.1002/anie.202104952] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/31/2021] [Indexed: 11/09/2022]
Abstract
Designing a stable and selective catalyst with high H2 utilisation is of pivotal importance for the direct gas-phase epoxidation of propylene. This work describes a facile one-pot methodology to synthesise ligand-stabilised sub-nanometre gold clusters immobilised onto a zeolitic support (TS-1) to engineer a stable Au/TS-1 catalyst. A non-thermal O2 plasma technique is used for the quick removal of ligands with limited increase in particle size. Compared to untreated Au/TS-1 catalysts prepared using the deposition precipitation method, the synthesised catalyst exhibits improved catalytic performance, including 10 times longer lifetime (>20 days), increased PO selectivity and hydrogen efficiency in direct gas phase epoxidation. The structure-stability relationship of the catalyst is illustrated using multiple characterisation techniques, such as XPS, 31 P MAS NMR, DR-UV/VIS, HRTEM and TGA. It is hypothesised that the ligands play a guardian role in stabilising the Au particle size, which is vital in this reaction. This strategy is a promising approach towards designing a more stable heterogeneous catalyst.
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Affiliation(s)
- Nidhi Kapil
- Centre for Nature Inspired Engineering and Department of Chemical Engineering, University College London, London, WC1E 7JE, UK
| | - Tobias Weissenberger
- Centre for Nature Inspired Engineering and Department of Chemical Engineering, University College London, London, WC1E 7JE, UK
| | - Fabio Cardinale
- Centre for Nature Inspired Engineering and Department of Chemical Engineering, University College London, London, WC1E 7JE, UK
| | - Panagiotis Trogadas
- Centre for Nature Inspired Engineering and Department of Chemical Engineering, University College London, London, WC1E 7JE, UK
| | | | - Michael M Nigra
- Department of Chemical Engineering, University of Utah, Salt Lake City, UT, 84112, USA
| | - Marc-Olivier Coppens
- Centre for Nature Inspired Engineering and Department of Chemical Engineering, University College London, London, WC1E 7JE, UK
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47
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Richards T, Harrhy JH, Lewis RJ, Howe AGR, Suldecki GM, Folli A, Morgan DJ, Davies TE, Loveridge EJ, Crole DA, Edwards JK, Gaskin P, Kiely CJ, He Q, Murphy DM, Maillard JY, Freakley SJ, Hutchings GJ. A residue-free approach to water disinfection using catalytic in situ generation of reactive oxygen species. Nat Catal 2021. [DOI: 10.1038/s41929-021-00642-w] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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48
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Vu HTT, Vo VLN, Chung YM. Direct synthesis of hydrogen peroxide over palladium catalysts supported on glucose-derived amorphous carbons. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0748-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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49
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Vilhena JCE, Amorim A, Ribeiro L, Ferreira IM, Pombo M. Assessing the efficiency of low-cost cleaning methods for diatoms from intertidal sediment samples. J Microbiol Methods 2021; 187:106255. [PMID: 34062211 DOI: 10.1016/j.mimet.2021.106255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/25/2021] [Accepted: 05/27/2021] [Indexed: 11/16/2022]
Abstract
This study aims to compare the effectiveness of several low-cost reagents in obtaining high-quality diatom slides for microphytobenthos research. We evaluated the performance of eight reagents in sediment samples of beach intertidal zones. For each of the tested reagents, different pre-treatment conditions (pre-washed; non-washed) and three different temperatures (room temperature at 26 °C, 60 °C, and 100 °C) were also evaluated. For each treatment (combinations between reagents, temperatures, and pre-treatment conditions), we counted diatoms cells that met the criteria necessary for taxonomic identification (Whole/Half frustules or valves without cell material) in 30 randomly chosen fields of view in definitive preparations made from the treated samples. We also compared the treatments regarding species richness and diversity observed in the definitive preparations. The reagents influenced more the conditions of diatoms cells than the temperature and pre-treatment. H2O2, HNO3, NaClO were the methods that had the best performance in relation to the number of identifiable items. The six treatments with H2O2 presented similar amounts of identifiable items, regardless of pre-treatment and temperature. HNO3 presented a higher number of identifiable items in non-washed and pre-washed treatments at 60 °C and non-washed at 100 °C. NaClO had its best performance the following treatments: non-washed at room temperature and non-washed and pre-washed at 60 °C. H2O2 and HNO3 also showed better results for diatom species richness and diversity, followed by NaClO. The use of H2O2 was more robust since it obtained good results regardless of temperature and pre-treatments and should be preferred. HNO3 and NaClO should be used only with the appropriate temperatures, and pre-washing should be avoided.
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Affiliation(s)
- Jéssica C E Vilhena
- Postgraduate Program in Tropical Biodiversity (PPGBIO), Federal University of Amapá, 68.903-419 Macapá, Brazil; Marine and Environmental Sciences Centre (MARE), Faculty of Sciences, University of Lisbon, 1749-016 Lisbon, Portugal.
| | - Ana Amorim
- Marine and Environmental Sciences Centre (MARE), Faculty of Sciences, University of Lisbon, 1749-016 Lisbon, Portugal; Department of Plant Biology, Faculty of Sciences, University of Lisbon, 1749-016 Lisbon, Portugal.
| | - Lourenço Ribeiro
- Marine and Environmental Sciences Centre (MARE), Faculty of Sciences, University of Lisbon, 1749-016 Lisbon, Portugal.
| | - Irlon M Ferreira
- Laboratory Biocatalysis and Applied Organic Synthesis Laboratory, Federal University of Amapá, 68.903-419 Macapá, Brazil.
| | - Maíra Pombo
- Postgraduate Program in Tropical Biodiversity (PPGBIO), Federal University of Amapá, 68.903-419 Macapá, Brazil.
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50
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Brehm J, Lewis RJ, Morgan DJ, Davies TE, Hutchings GJ. The Direct Synthesis of Hydrogen Peroxide over AuPd Nanoparticles: An Investigation into Metal Loading. Catal Letters 2021. [DOI: 10.1007/s10562-021-03632-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AbstractThe direct synthesis of H2O2 from molecular H2 and O2 over AuPd catalysts, supported on TiO2 and prepared via an excess chloride co-impregnation procedure is investigated. The role of Au:Pd ratio on the catalytic activity towards H2O2 formation and its subsequent degradation is evaluated under conditions that have previously been found to be optimal for the formation of H2O2. The combination of relatively small nanoparticles, of mixed Pd-oxidation state is shown to correlate with enhanced catalytic performance. Subsequently, a detailed study of catalytic activity towards H2O2 synthesis as a function of AuPd loading was conducted, with a direct correlation between catalytic activity and metal loading observed.
Graphic Abstract
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