1
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Barreto J, Nilius N, Tissot H, Shaikhutdinov S, Freund HJ, Stavale F. Interaction of water and carbon monoxide with MnO(001) thin films on Au(111). Phys Chem Chem Phys 2023; 25:29808-29815. [PMID: 37886831 DOI: 10.1039/d3cp04038k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Atomically defined MnO(001) thin films were grown on an Au(111) substrate, and their interaction with water (D2O) was investigated by infrared reflection absorption spectroscopy (IRAS) and thermal desorption spectroscopy (TDS). Carbon monoxide adsorption experiments were performed to probe surface atoms and defects on oxide films. Next, water interaction was investigated from which an associative binding pathway and a dissociative binding pathway were revealed, where the water molecules adsorb at terraces and water dissociation takes place at oxygen vacancies mediated by nearby Mn2+ sites. The IRAS data are supported by TDS experiments, which also manifest the importance of defects in the adsorption characteristics of MnO.
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Affiliation(s)
- Jade Barreto
- Brazilian Center for Research in Physics, 22290-180, Rio de Janeiro, RJ, Brazil.
| | - Niklas Nilius
- Carl von Ossietzky Universität, Institut für Physik, D-26111 Oldenburg, Germany
| | - Heloise Tissot
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Shamil Shaikhutdinov
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Hans Joachim Freund
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Fernando Stavale
- Brazilian Center for Research in Physics, 22290-180, Rio de Janeiro, RJ, Brazil.
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2
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Luo M, Zhang H, Ren Y, Zhou H, Zhou P, He CS, Xiong Z, Du Y, Liu Y, Lai B. In Situ Regulation of MnO 2 Structural Characteristics by Oxyanions to Boost Permanganate Autocatalysis for Phenol Removal. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:12847-12857. [PMID: 37578486 DOI: 10.1021/acs.est.3c02167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Oxyanions, a class of constituents naturally occurring in water, have been widely demonstrated to enhance permanganate (Mn(VII)) decontamination efficiency. However, the detailed mechanism remains ambiguous, mainly because the role of oxyanions in regulating the structural parameters of colloidal MnO2 to control the autocatalytic activity of Mn(VII) has received little attention. Herein, the origin of oxyanion-induced enhancement is systematically studied using theoretical calculations, electrochemical tests, and structure-activity relation analysis. Using bicarbonate (HCO3-) as an example, the results indicate that HCO3- can accelerate the degradation of phenol by Mn(VII) by improving its autocatalytic process. Specifically, HCO3- plays a significant role in regulating the structure of in situ produced MnO2 colloids, i.e., increasing the surface Mn(III)s content and restricting particle growth. These structural changes in MnO2 facilitate its strong binding to Mn(VII), thereby triggering interfacial electron transfer. The resultant surface-activated Mn(VII)* complexes demonstrate excellent degrading activity via directly seizing one electron from phenol. Further, other oxyanions with appropriate ionic potentials (i.e., borate, acetate, metasilicate, molybdate, and phosphate) exhibit favorable influences on the oxidative capability of Mn(VII) through an activation mechanism similar to that of HCO3-. These findings considerably improve our fundamental understanding of the oxidation behavior of Mn(VII) in actual water environments and provide a theoretical foundation for designing autocatalytically boosted Mn(VII) oxidation systems.
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Affiliation(s)
- Mengfan Luo
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
- Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Heng Zhang
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
- Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Yi Ren
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu 610065, China
| | - Hongyu Zhou
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
- Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Peng Zhou
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
- Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Chuan-Shu He
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
- Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Zhaokun Xiong
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
- Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Ye Du
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
- Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Yang Liu
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
- Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Bo Lai
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
- Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
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3
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Qu L, Han J, Huang Y, Yang G, Liu W, Long Z, Gu Y, Zhang Q, Gao M, Dong X. Peroxidase-like Nanozymes for Point-of-Care SERS Sensing and Wound Healing. ACS APPLIED BIO MATERIALS 2023; 6:1272-1282. [PMID: 36854189 DOI: 10.1021/acsabm.3c00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
The emergence of nanozymes provides a potential method for combating multidrug-resistant bacteria resulted from the abuse of antibiotics. However, in nanozyme-catalyzed systems, few studies have addressed the actual hydrogen peroxide (H2O2) level involved in sterilization. Herein, we designed a high-efficiency peroxidase-mimicking nanozyme with surface-enhanced Raman scattering (SERS) property by assembling gold nanoparticles on single-layer Cu2+-C3N4 (AuNP-Cu2+-C3N4). The nanozyme effectively converts the low-active Raman reporter 3,3',5,5'-tetramethylbenzidine (TMB) into its oxidized form with H2O2, resulting in SERS signal changes, thereby achieving highly sensitive quantification of H2O2 with limit of detection as low as 0.60 μM. More importantly, the nanozyme can specifically catalyze H2O2 into antibacterial hydroxyl radicals. In vitro and in vivo evaluations demonstrate the remarkable antibacterial efficacy of the nanozyme/H2O2 combination against Staphylococcus aureus (up to 99.9%), which could promote wound healing in mice and allow point-of-care monitoring the amount of H2O2 participated in effective sterilization. This study not only displays great potential in combining multiple functionalities of nanomaterials for versatile bioassays but also provides a promising approach to design nanozymes for biomedical and catalytic applications.
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Affiliation(s)
- Lulu Qu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Jing Han
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Yi Huang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Guohai Yang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Weijie Liu
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Zhouyang Long
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Yingqiu Gu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Qingming Zhang
- Department of Pharmacy, Jinling Hospital, Nanjing 210002, Jiangsu, China
| | - Ming Gao
- Department of Pharmacy, Jinling Hospital, Nanjing 210002, Jiangsu, China
| | - Xiaochen Dong
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
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4
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Reusable ring-like Fe3O4/Au nanozymes with enhanced peroxidase-like activities for colorimetric-SERS dual-mode sensing of biomolecules in human blood. Biosens Bioelectron 2022; 209:114253. [DOI: 10.1016/j.bios.2022.114253] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 03/07/2022] [Accepted: 04/02/2022] [Indexed: 12/26/2022]
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5
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Villalobos J, Morales DM, Antipin D, Schuck G, Golnak R, Xiao J, Risch M. Stabilization of a Mn-Co Oxide During Oxygen Evolution in Alkaline Media. ChemElectroChem 2022; 9:e202200482. [PMID: 35915742 PMCID: PMC9328349 DOI: 10.1002/celc.202200482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/01/2022] [Indexed: 11/08/2022]
Abstract
Improving the stability of electrocatalysts for the oxygen evolution reaction (OER) through materials design has received less attention than improving their catalytic activity. We explored the effects of Mn addition to a cobalt oxide for stabilizing the catalyst by comparing single phase CoOx and (Co0.7Mn0.3)Ox films electrodeposited in alkaline solution. The obtained disordered films were classified as layered oxides using X-ray absorption spectroscopy (XAS). The CoOx films showed a constant decrease in the catalytic activity during cycling, confirmed by oxygen detection, while that of (Co0.7Mn0.3)Ox remained constant within error as measured by electrochemical metrics. These trends were rationalized based on XAS analysis of the metal oxidation states, which were Co2.7+ and Mn3.7+ in the bulk and similar near the surface of (Co0.7Mn0.3)Ox, before and after cycling. Thus, Mn in (Co0.7Mn0.3)Ox successfully stabilized the bulk catalyst material and its surface activity during OER cycling. The development of stabilization approaches is essential to extend the durability of OER catalysts.
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Affiliation(s)
- Javier Villalobos
- Nachwuchsgruppe Gestaltung des SauerstoffentwicklungsmechanismusHelmholtz-Zentrum Berlin für Materialien und Energie GmbHHahn-Meitner Platz 1Berlin14109Germany
| | - Dulce M. Morales
- Nachwuchsgruppe Gestaltung des SauerstoffentwicklungsmechanismusHelmholtz-Zentrum Berlin für Materialien und Energie GmbHHahn-Meitner Platz 1Berlin14109Germany
| | - Denis Antipin
- Nachwuchsgruppe Gestaltung des SauerstoffentwicklungsmechanismusHelmholtz-Zentrum Berlin für Materialien und Energie GmbHHahn-Meitner Platz 1Berlin14109Germany
| | - Götz Schuck
- Abteilung Struktur und Dynamik von EnergiematerialienHelmholtz-Zentrum Berlin für Materialien und Energie GmbHHahn-Meitner Platz 1Berlin14109Germany
| | - Ronny Golnak
- Department of Highly Sensitive X-ray SpectroscopyHelmholtz-Zentrum Berlin für Materialien und Energie GmbHAlbert-Einstein-Straße 15Berlin12489Germany
| | - Jie Xiao
- Department of Highly Sensitive X-ray SpectroscopyHelmholtz-Zentrum Berlin für Materialien und Energie GmbHAlbert-Einstein-Straße 15Berlin12489Germany
| | - Marcel Risch
- Nachwuchsgruppe Gestaltung des SauerstoffentwicklungsmechanismusHelmholtz-Zentrum Berlin für Materialien und Energie GmbHHahn-Meitner Platz 1Berlin14109Germany
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6
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Zhang N, Jiang R. Interfacial Engineering of Metal/Metal Oxide Heterojunctions toward Oxygen Reduction and Evolution Reactions. Chempluschem 2021; 86:1586-1601. [PMID: 34874104 DOI: 10.1002/cplu.202100466] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/24/2021] [Indexed: 11/09/2022]
Abstract
Oxygen reduction reactions (ORR) and oxygen evolution reactions (OER) are two very important electrochemical processes for renewable energy conversion and storage devices. Electrocatalysts are needed to accelerate their sluggish kinetics to improve energy conversion efficiencies. Hence, extensive efforts have been devoted to the development of OER and ORR electrocatalysts with high activity and stability as well as low cost. Among these developed electrocatalysts, metal/metal oxide heterostructures attract a great deal of research interest because their catalytic performances can be tuned by interface engineering. In this Review, the latest achievements in interface engineering of metal/metal oxides heterostructures toward ORR and OER are described. The effects of the metal/metal oxide interface on catalysis are first discussed. Then, the approaches for interface engineering are illustrated. The developments of interface engineering in OER and ORR catalysis as well as bifunctional electrocatalysis are further introduced. Lastly, a perspective for future development of interface engineering in metal/metal oxide for OER and ORR is discussed.
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Affiliation(s)
- Nan Zhang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Ruibin Jiang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
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7
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Tran NM, Kim S, Yoo H. Gold nanodot assembly within a cobalt chalcogenide nanoshell: Promotion of electrocatalytic activity. J Colloid Interface Sci 2021; 605:274-285. [PMID: 34329979 DOI: 10.1016/j.jcis.2021.07.075] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/07/2021] [Accepted: 07/13/2021] [Indexed: 12/28/2022]
Abstract
The assembly of functional nanoparticles within materials with unique architectures can improve the interfacial surfaces, defects, and active sites, which are key factors for the designing novel nanocatalysts. Nano metal-organic framework (NMOF) can be employed to fabricate nanodots-confined nanohybrids for use in electrocatalytic processes. Herein, we report a controlled synthesis of gold nanodot assembly within cobalt chalcogenide nanoshell (dots-in-shell Au/CoxSy nanohybrids). A cobalt-based NMOF (the cobalt-based zeolite imidazole framework, ZIF-67) is used as a versatile sacrificial template to yield dots-in-shell Au/CoxSy nanohybrids. Due to the synergistic effect of the well-dispersed Au nanodots and the thin CoxSy nanoshell, the obtained dots-in-shell Au/CoxSy nanohybrids exhibit enhanced performance for the oxygen evolution reaction (OER) with low overpotential values at a current density of 10 mA cm-2 and a small Tafel slope (343 mV and 62 mV dec-1, respectively).
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Affiliation(s)
- Ngoc Minh Tran
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Suncheol Kim
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Hyojong Yoo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea.
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8
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Yang R, Fan Y, Ye R, Tang Y, Cao X, Yin Z, Zeng Z. MnO 2 -Based Materials for Environmental Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2004862. [PMID: 33448089 DOI: 10.1002/adma.202004862] [Citation(s) in RCA: 124] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/31/2020] [Indexed: 06/12/2023]
Abstract
Manganese dioxide (MnO2 ) is a promising photo-thermo-electric-responsive semiconductor material for environmental applications, owing to its various favorable properties. However, the unsatisfactory environmental purification efficiency of this material has limited its further applications. Fortunately, in the last few years, significant efforts have been undertaken for improving the environmental purification efficiency of this material and understanding its underlying mechanism. Here, the aim is to summarize the recent experimental and computational research progress in the modification of MnO2 single species by morphology control, structure construction, facet engineering, and element doping. Moreover, the design and fabrication of MnO2 -based composites via the construction of homojunctions and MnO2 /semiconductor/conductor binary/ternary heterojunctions is discussed. Their applications in environmental purification systems, either as an adsorbent material for removing heavy metals, dyes, and microwave (MW) pollution, or as a thermal catalyst, photocatalyst, and electrocatalyst for the degradation of pollutants (water and gas, organic and inorganic) are also highlighted. Finally, the research gaps are summarized and a perspective on the challenges and the direction of future research in nanostructured MnO2 -based materials in the field of environmental applications is presented. Therefore, basic guidance for rational design and fabrication of high-efficiency MnO2 -based materials for comprehensive environmental applications is provided.
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Affiliation(s)
- Ruijie Yang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Yingying Fan
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Ruquan Ye
- Department of Chemistry, State Key Lab of Marine Pollution, City University of Hong Kong, Hong Kong, 999077, P. R. China
| | - Yuxin Tang
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Xiehong Cao
- College of Materials Science and Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, Zhejiang, 310014, P. R. China
| | - Zongyou Yin
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia
| | - Zhiyuan Zeng
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
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Li K, Xue Y, Zhang L, Han Y. β-FeOOH/Fe-TiO 2 heterojunctions on Ti for bacteria inactivation under light irradiation and biosealing. Biomater Sci 2020; 8:6004-6016. [PMID: 32996477 DOI: 10.1039/d0bm01290d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Intraosseous transcutaneous implants transferring mechanical stress directly from the skeleton to a prosthesis are an area of biological mechanics. However, bacterial invasion and weak biosealing with skin tissue usually induce implant failure. In this paper, composite coatings consisting of β-FeOOH as an outer layer and Fe-TiO2 as an inner layer were prepared on Ti via micro-arc oxidation and hydrothermal treatment (HT). The surface microstructures and optical absorption properties of the coatings were observed, the production of reactive oxygen species (ROS) was measured, Staphylococcus aureus (S. aureus) and fibroblast behaviors were studied in vitro, and bacteria inactivation and skin tissue responses on different surfaces were evaluated in vivo. The results show that Fe3+ was doped into TiO2 and β-FeOOH nanoparticles were gradually deposited on TiO2 during HT treatment, forming β-FeOOH/Fe-TiO2 heterojunctions. The light absorption of the composite coatings shifted to the longer wavelength region because of a narrowed TiO2 bandgap and the formation of heterojunctions. Under light irradiation, photoinduced electrons and holes on the heterojunctions were separated efficiently. Via optimizing the amount of Fe3+ in TiO2, ROS that formed at the heterojunctions after light irradiation for 10 min could kill 80% of S. aureus compared with pure Ti in vitro, but they did not affect fibroblast behavior, including proliferation and phenotyping. In vivo, the optimized β-FeOOH/Fe-TiO2 heterojunctions, upon light irradiation, could inhibit bacterial infection, suppress an inflammatory response, and promote integration with skin tissue. Such results provide a new perspective suggesting the potential application of β-FeOOH/Fe-TiO2 heterojunctions in percutaneous Ti implants, especially in infected cases.
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Affiliation(s)
- Kai Li
- State-key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China.
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10
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Bigiani L, Gasparotto A, Maccato C, Sada C, Verbeeck J, Andreu T, Morante JR, Barreca D. Dual Improvement of
β
‐MnO
2
Oxygen Evolution Electrocatalysts via Combined Substrate Control and Surface Engineering. ChemCatChem 2020. [DOI: 10.1002/cctc.202000999] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Lorenzo Bigiani
- Department of Chemical Sciences Padova University and INSTM 35131 Padova Italy
| | - Alberto Gasparotto
- Department of Chemical Sciences Padova University and INSTM 35131 Padova Italy
| | - Chiara Maccato
- Department of Chemical Sciences Padova University and INSTM 35131 Padova Italy
| | - Cinzia Sada
- Department of Physics and Astronomy Padova University and INSTM 35131 Padova Italy
| | - Johan Verbeeck
- EMAT and NANOlab Center of Excellence University of Antwerp 2020 Antwerpen Belgium
| | - Teresa Andreu
- Catalonia Institute for Energy Research (IREC) Sant Adrià de Besòs 08930 Barcelona Spain
| | - Juan Ramón Morante
- Catalonia Institute for Energy Research (IREC) Sant Adrià de Besòs 08930 Barcelona Spain
| | - Davide Barreca
- CNR-ICMATE and INSTM, Department of Chemical Sciences Padova University 35131 Padova Italy
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11
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Recent advances in heterogeneous Mn-based electrocatalysts toward biological photosynthetic Mn4Ca cluster. Catal Today 2020. [DOI: 10.1016/j.cattod.2016.12.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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12
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Wang J, Heil T, Zhu B, Tung CW, Yu J, Chen HM, Antonietti M, Cao S. A Single Cu-Center Containing Enzyme-Mimic Enabling Full Photosynthesis under CO 2 Reduction. ACS NANO 2020; 14:8584-8593. [PMID: 32603083 DOI: 10.1021/acsnano.0c02940] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Polymeric carbon nitride (CN) is one of the most promising metal-free photocatalysts to alleviate the energy crisis and environmental pollution. Loading cocatalysts is regarded as an effective way to improve the photocatalytic efficiency of CNs. However, commonly used noble metal cocatalysts limit their applications due to their rarity and high cost. Herein, we present the effective synthesis of single-atom copper-modified CN via supramolecular preorganization with subsequent condensation, which provides effective charge transfer pathways by an "infused" delocalized state with variable-valence catalysis at the same time. The C-Cu-N2 single-atom catalytic site can activate CO2 molecules and reduces the energy barrier toward photocatalytic CO2 reduction. Excellent performance for photocatalytic CO2 reduction was found. This work thereby provides a general protocol of designing a noble-metal-free photocatalyst with infused metal centers toward a wide range of applications.
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Affiliation(s)
- Jiu Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070 Wuhan, People's Republic of China
| | - Tobias Heil
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, 14476 Potsdam, Germany
| | - Bicheng Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070 Wuhan, People's Republic of China
| | - Ching-Wei Tung
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070 Wuhan, People's Republic of China
| | - Hao Ming Chen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Markus Antonietti
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, 14476 Potsdam, Germany
| | - Shaowen Cao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070 Wuhan, People's Republic of China
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, 14476 Potsdam, Germany
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13
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Zheng X, Cui P, Qian Y, Zhao G, Zheng X, Xu X, Cheng Z, Liu Y, Dou SX, Sun W. Multifunctional Active‐Center‐Transferable Platinum/Lithium Cobalt Oxide Heterostructured Electrocatalysts towards Superior Water Splitting. Angew Chem Int Ed Engl 2020; 59:14533-14540. [DOI: 10.1002/anie.202005241] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Xiaobo Zheng
- School of Materials Science and Engineering State Key Laboratory of Silicon Materials Zhejiang University Hangzhou 310027 P. R. China
- Institute for Superconducting and Electronic Materials Australia Institute for Innovation Material University of Wollongong Wollongong NSW 2522 Australia
| | - Peixin Cui
- Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 P. R. China
| | - Yumin Qian
- Texas Materials Institute and Department of Mechanical Engineering The University of Texas at Austin Austin TX 78712 USA
| | - Guoqiang Zhao
- School of Materials Science and Engineering State Key Laboratory of Silicon Materials Zhejiang University Hangzhou 310027 P. R. China
- Institute for Superconducting and Electronic Materials Australia Institute for Innovation Material University of Wollongong Wollongong NSW 2522 Australia
| | - Xusheng Zheng
- National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230029 P. R. China
| | - Xun Xu
- Institute for Superconducting and Electronic Materials Australia Institute for Innovation Material University of Wollongong Wollongong NSW 2522 Australia
| | - Zhenxiang Cheng
- Institute for Superconducting and Electronic Materials Australia Institute for Innovation Material University of Wollongong Wollongong NSW 2522 Australia
| | - Yuanyue Liu
- Texas Materials Institute and Department of Mechanical Engineering The University of Texas at Austin Austin TX 78712 USA
| | - Shi Xue Dou
- Institute for Superconducting and Electronic Materials Australia Institute for Innovation Material University of Wollongong Wollongong NSW 2522 Australia
| | - Wenping Sun
- School of Materials Science and Engineering State Key Laboratory of Silicon Materials Zhejiang University Hangzhou 310027 P. R. China
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14
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Zheng X, Cui P, Qian Y, Zhao G, Zheng X, Xu X, Cheng Z, Liu Y, Dou SX, Sun W. Multifunctional Active‐Center‐Transferable Platinum/Lithium Cobalt Oxide Heterostructured Electrocatalysts towards Superior Water Splitting. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005241] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xiaobo Zheng
- School of Materials Science and Engineering State Key Laboratory of Silicon Materials Zhejiang University Hangzhou 310027 P. R. China
- Institute for Superconducting and Electronic Materials Australia Institute for Innovation Material University of Wollongong Wollongong NSW 2522 Australia
| | - Peixin Cui
- Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 P. R. China
| | - Yumin Qian
- Texas Materials Institute and Department of Mechanical Engineering The University of Texas at Austin Austin TX 78712 USA
| | - Guoqiang Zhao
- School of Materials Science and Engineering State Key Laboratory of Silicon Materials Zhejiang University Hangzhou 310027 P. R. China
- Institute for Superconducting and Electronic Materials Australia Institute for Innovation Material University of Wollongong Wollongong NSW 2522 Australia
| | - Xusheng Zheng
- National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230029 P. R. China
| | - Xun Xu
- Institute for Superconducting and Electronic Materials Australia Institute for Innovation Material University of Wollongong Wollongong NSW 2522 Australia
| | - Zhenxiang Cheng
- Institute for Superconducting and Electronic Materials Australia Institute for Innovation Material University of Wollongong Wollongong NSW 2522 Australia
| | - Yuanyue Liu
- Texas Materials Institute and Department of Mechanical Engineering The University of Texas at Austin Austin TX 78712 USA
| | - Shi Xue Dou
- Institute for Superconducting and Electronic Materials Australia Institute for Innovation Material University of Wollongong Wollongong NSW 2522 Australia
| | - Wenping Sun
- School of Materials Science and Engineering State Key Laboratory of Silicon Materials Zhejiang University Hangzhou 310027 P. R. China
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15
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Wang J, Luo H, Liu P. Highly dispersed gold nanoparticles on metal-doped α-MnO2 catalysts for aerobic selective oxidation of ethanol. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.106030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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16
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Jin L, Liu B, Louis ME, Li G, He J. Highly Crystalline Mesoporous Titania Loaded with Monodispersed Gold Nanoparticles: Controllable Metal-Support Interaction in Porous Materials. ACS APPLIED MATERIALS & INTERFACES 2020; 12:9617-9627. [PMID: 32003212 DOI: 10.1021/acsami.9b20231] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We report the syntheses of mesoporous Au/TiO2 hybrid photocatalysts with ordered and crystalline frameworks using co-assembly of organosilane-containing colloidal amphiphile micelles (CAMs) and poly(ethylene oxide)-modified gold nanoparticles (AuNPs) as templates. The assembled CAMs can convert to inorganic silica during calcination at elevated temperatures, providing extraordinary thermal stability to preserve the porosity of TiO2 and the nanostructures of AuNPs. Well-defined AuNPs supported within mesoporous TiO2 (Au@mTiO2) can be prepared using thermal annealing at temperatures up to 800 °C. High-temperature treatment (≥500 °C) under air is found to not only improve the crystallinity of TiO2 but also induce oxidative strong metal-support interactions (SMSIs) at Au/TiO2 interfaces. For oxidative SMSIs, the surface oxidation of AuNPs can generate positively charged Auδ+ species, while TiO2 gets reduced simultaneously. Using photocatalytic oxidation of benzyl alcohol as a model reaction, Au@mTiO2 calcined at 600 °C for 12 h exhibited the best activity under UV irradiation, while Au@mTiO2 calcined at 600 °C for 2 h showed the best activity under visible light. The delicate balance between the crystallinity and porosity of TiO2 and the SMSIs at Au-TiO2 interfaces is found to impact the photocatalytic activity of these hybrid materials.
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Affiliation(s)
- Lei Jin
- Department of Chemistry , University of Connecticut , Storrs , Connecticut 06269 , United States
| | - Ben Liu
- Department of Chemistry , University of Connecticut , Storrs , Connecticut 06269 , United States
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Michael E Louis
- Department of Chemistry , University of New Hampshire , Durham , New Hampshire 03824 , United States
| | - Gonghu Li
- Department of Chemistry , University of New Hampshire , Durham , New Hampshire 03824 , United States
| | - Jie He
- Department of Chemistry , University of Connecticut , Storrs , Connecticut 06269 , United States
- Polymer Program, Institute of Materials Science , University of Connecticut , Storrs , Connecticut 06269 , United States
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17
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Li XP, Han WK, Xiao K, Ouyang T, Li N, Peng F, Liu ZQ. Enhancing hydrogen evolution reaction through modulating electronic structure of self-supported NiFe LDH. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00315h] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
NiFe-layered double hydroxide (NiFe LDH), as an efficient oxygen evolution reaction (OER) electrocatalyst, has emerged as a promising electrocatalyst for catalyzing overall water splitting in alkaline electrolyte.
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Affiliation(s)
- Xiao-Peng Li
- School of Chemistry and Chemical Engineering
- Guangzhou Key Laboratory for Clean Energy and Materials
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta
- Ministry of Education
- Guangzhou University
| | - Wen-Kai Han
- School of Chemistry and Chemical Engineering
- Guangzhou Key Laboratory for Clean Energy and Materials
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta
- Ministry of Education
- Guangzhou University
| | - Kang Xiao
- School of Chemistry and Chemical Engineering
- Guangzhou Key Laboratory for Clean Energy and Materials
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta
- Ministry of Education
- Guangzhou University
| | - Ting Ouyang
- School of Chemistry and Chemical Engineering
- Guangzhou Key Laboratory for Clean Energy and Materials
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta
- Ministry of Education
- Guangzhou University
| | - Nan Li
- School of Chemistry and Chemical Engineering
- Guangzhou Key Laboratory for Clean Energy and Materials
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta
- Ministry of Education
- Guangzhou University
| | - Feng Peng
- School of Chemistry and Chemical Engineering
- Guangzhou Key Laboratory for Clean Energy and Materials
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta
- Ministry of Education
- Guangzhou University
| | - Zhao-Qing Liu
- School of Chemistry and Chemical Engineering
- Guangzhou Key Laboratory for Clean Energy and Materials
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta
- Ministry of Education
- Guangzhou University
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18
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Li MS, Lin ZY, Chen QW. Metal-organic frameworks derived Ag-CoSO4 nanohybrids as efficient electrocatalyst for oxygen evolution reaction. CHINESE J CHEM PHYS 2019. [DOI: 10.1063/1674-0068/cjcp1805104] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Meng-si Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Materials Science & Engineering and Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Zhi-yu Lin
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Materials Science & Engineering and Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Qian-wang Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Materials Science & Engineering and Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei 230026, China
- High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
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19
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Xu M, Ma R, Huang C, Shi G, Zhou T, Deng J. Competitive redox reaction of Au-NCs/MnO 2 nanocomposite: Toward colorimetric and fluorometric detection of acid phosphatase as an indicator of soil cadmium contamination. Anal Chim Acta 2019; 1096:174-183. [PMID: 31883584 DOI: 10.1016/j.aca.2019.10.062] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/19/2019] [Accepted: 10/25/2019] [Indexed: 01/17/2023]
Abstract
In this study, by rational regulating the competitive redox reaction of Au-NCs/MnO2 nanocomposite between the dye indigo carmine (IC) and the enzymatic product L-ascorbic acid (AA), we have established a colorimetric and fluorometric double-channel responsive assay for acid phosphatase (ACP), which could serve as an indicator of soil cadmium (Cd) contamination. Initially, the gold nanoclusters (Au-NCs) were added to the suspension of MnO2 nanosheets to form Au-NCs/MnO2 nanocomposite with enhanced oxidative degradation ability. When IC was subsequently added, the blue color of IC faded due to oxidative degradation, and the mixture showed the yellow color of Au-NCs/MnO2 nanocomposite. Meanwhile, based on the inner filter effect (IFE), the fluorescence of Au-NCs was suppressed by MnO2 nanosheets during this process. However, with the presence of AA, hydrolyzed from L-ascorbic-2-phosphate (AAP) by ACP, the MnO2 nanosheets in Au-NCs/MnO2 nanocomposite were reduced to Mn2+ immediately. As a consequence, IC remained its blue color, in the meantime, the fluorescence of Au-NCs recovered, which essentially constituted a new mechanism for ACP detection with colorimetric and fluorometric double-channel response. With the method we developed, soil ACP activity can either be directly visualized by bare eyes or detected reliably through double channels. Furthermore, the dynamic changes of ACP activity during soil Cd contamination could also be monitored; the sharp increase of ACP activity at an appropriate time point could serve as a unique alarm for cadmium (Cd) contamination in soil, which is of great importance for soil quality evaluation and ecological risk assessment.
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Affiliation(s)
- Miao Xu
- School of Ecological and Environmental Sciences, Shanghai Key Lab for Urban Ecological Process and Eco-Restoration, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China; Institute of Eco-Chongming, 3663 Zhongshan Road, Shanghai, 200062, China
| | - Ruixue Ma
- School of Ecological and Environmental Sciences, Shanghai Key Lab for Urban Ecological Process and Eco-Restoration, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China; Institute of Eco-Chongming, 3663 Zhongshan Road, Shanghai, 200062, China
| | - Chunyu Huang
- School of Ecological and Environmental Sciences, Shanghai Key Lab for Urban Ecological Process and Eco-Restoration, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China; Institute of Eco-Chongming, 3663 Zhongshan Road, Shanghai, 200062, China
| | - Guoyue Shi
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Tianshu Zhou
- School of Ecological and Environmental Sciences, Shanghai Key Lab for Urban Ecological Process and Eco-Restoration, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China; Institute of Eco-Chongming, 3663 Zhongshan Road, Shanghai, 200062, China
| | - Jingjing Deng
- School of Ecological and Environmental Sciences, Shanghai Key Lab for Urban Ecological Process and Eco-Restoration, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China; Institute of Eco-Chongming, 3663 Zhongshan Road, Shanghai, 200062, China.
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20
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Conductive additives for oxide-based OER catalysts: A comparative RRDE study of carbon and silver in alkaline medium. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.06.154] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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West PJ, Byles BW, Pomerantseva E. Creation of controllable cationic and anionic defects in tunnel manganese oxide nanowires for enhanced oxygen evolution reaction. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.06.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Das B, Sharma M, Hazarika A, Bania KK. Self‐Assembled Monolayer Stabilized Gold‐Vanadate Nanoflute for Water Splitting Reactions. ChemistrySelect 2019. [DOI: 10.1002/slct.201901715] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Biraj Das
- Department of Chemical SciencesTezpur University Assam India 784028
| | - Mukesh Sharma
- Department of Chemical SciencesTezpur University Assam India 784028
| | - Anil Hazarika
- Department of Electronics and Communication EngineeringTezpur University Assam India 784028
| | - Kusum K. Bania
- Department of Chemical SciencesTezpur University Assam India 784028
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23
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Li A, Ooka H, Bonnet N, Hayashi T, Sun Y, Jiang Q, Li C, Han H, Nakamura R. Stable Potential Windows for Long‐Term Electrocatalysis by Manganese Oxides Under Acidic Conditions. Angew Chem Int Ed Engl 2019; 58:5054-5058. [DOI: 10.1002/anie.201813361] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/19/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Ailong Li
- State Key Laboratory of Catalysis & Division of Solar EnergyDalian National Laboratory for Clean EnergyDalian Institute of Chemical Physics, CAS Dalian 116023 China
- Biofunctional Catalyst Research TeamRIKEN Center for Sustainable Resource Science (CSRS) 2-1 Hirosawa Wako Saitama 351-0198 Japan
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Hideshi Ooka
- Biofunctional Catalyst Research TeamRIKEN Center for Sustainable Resource Science (CSRS) 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Nadège Bonnet
- Biofunctional Catalyst Research TeamRIKEN Center for Sustainable Resource Science (CSRS) 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Toru Hayashi
- Biofunctional Catalyst Research TeamRIKEN Center for Sustainable Resource Science (CSRS) 2-1 Hirosawa Wako Saitama 351-0198 Japan
- Department of Applied ChemistrySchool of EngineeringThe University of Tokyo 7-3-1, Hongo Bunkyo-ku Tokyo 113-8656 Japan
| | - Yimeng Sun
- State Key Laboratory of Catalysis & Division of Solar EnergyDalian National Laboratory for Clean EnergyDalian Institute of Chemical Physics, CAS Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Qike Jiang
- State Key Laboratory of Catalysis & Division of Solar EnergyDalian National Laboratory for Clean EnergyDalian Institute of Chemical Physics, CAS Dalian 116023 China
| | - Can Li
- State Key Laboratory of Catalysis & Division of Solar EnergyDalian National Laboratory for Clean EnergyDalian Institute of Chemical Physics, CAS Dalian 116023 China
| | - Hongxian Han
- State Key Laboratory of Catalysis & Division of Solar EnergyDalian National Laboratory for Clean EnergyDalian Institute of Chemical Physics, CAS Dalian 116023 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Ryuhei Nakamura
- Biofunctional Catalyst Research TeamRIKEN Center for Sustainable Resource Science (CSRS) 2-1 Hirosawa Wako Saitama 351-0198 Japan
- Earth-Life Science Institute (ELSI)Tokyo Institute of Technology 2-12-1-I7E Ookayama, Meguro-ku Tokyo 152-8550 Japan
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24
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Stable Potential Windows for Long‐Term Electrocatalysis by Manganese Oxides Under Acidic Conditions. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813361] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Lone S, Ghosh S, Sadhu KK. Tryptophan-Stabilized Au-Fe xO y Nanocomposites as Electrocatalysts for Oxygen Evolution Reaction. ACS OMEGA 2019; 4:3385-3391. [PMID: 31459553 PMCID: PMC6647969 DOI: 10.1021/acsomega.8b03549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 01/31/2019] [Indexed: 06/10/2023]
Abstract
Au-FexOy nanocomposites with a variable gold-to-iron ratio were stabilized with l-tryptophan. The synthetic methodology is based on the facile redox reaction between Au(III) and Fe(0) in the presence of gold nanoparticle as a seed at room temperature in an aqueous medium. The synthesis results in the deposition of Au nanoparticles on the surface of iron oxide layers. Composition variation in the nanocomposites was obtained by controlling the seed amount and reducing agent. These nanocomposites are used as electrocatalysts for the thermodynamically unfavorable oxygen evolution reaction (OER) from water. Among the nanocomposites, the most efficient OER activity was observed from the nanocomposite 12. The content of iron with respect to gold is at the maximum in the nanocomposite, which was obtained from the reaction with a minimum seed concentration and maximum reducing agent.
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Affiliation(s)
- Shahbaz
Ahmad Lone
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667 Uttarakhand, India
| | - Soumen Ghosh
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667 Uttarakhand, India
| | - Kalyan K. Sadhu
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667 Uttarakhand, India
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26
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Yang Y, Su X, Zhang L, Kerns P, Achola L, Hayes V, Quardokus R, Suib SL, He J. Intercalating MnO
2
Nanosheets With Transition Metal Cations to Enhance Oxygen Evolution. ChemCatChem 2019. [DOI: 10.1002/cctc.201802019] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yue Yang
- Department of Chemical Engineering Nanjing University of Science and Technology Nanjing 210094 China
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Xingsong Su
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Lei Zhang
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Peter Kerns
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Laura Achola
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Veronica Hayes
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Rebecca Quardokus
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Steven L. Suib
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
- Institute of Materials Science University of Connecticut Storrs CT 06269 USA
- Department of Chemical & Biomolecular Engineering University of Connecticut Storrs CT 06269 USA
| | - Jie He
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
- Institute of Materials Science University of Connecticut Storrs CT 06269 USA
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27
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Liu H, Gao X, Yao X, Chen M, Zhou G, Qi J, Zhao X, Wang W, Zhang W, Cao R. Manganese(ii) phosphate nanosheet assembly with native out-of-plane Mn centres for electrocatalytic water oxidation. Chem Sci 2018; 10:191-197. [PMID: 30713630 PMCID: PMC6333235 DOI: 10.1039/c8sc03764g] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 10/01/2018] [Indexed: 12/26/2022] Open
Abstract
Nature selects Mn-clusters as catalysts for water oxidation, which is a significant reaction in photosynthesis.
Nature selects Mn-clusters as catalysts for water oxidation, which is a significant reaction in photosynthesis. Thus, it is of critical importance to develop Mn-based superstructures and study their catalytic details for water-splitting-based renewable energy research. Herein, we report a manganese(ii) phosphate nanosheet assembly with asymmetric out-of-plane Mn centers from the transformation of amine-intercalated nanoplates for efficient electrocatalytic water oxidation in neutral aqueous solutions. From structural and computational studies, it is found that the native out-of-plane Mn centers with terminal water ligands are accessible and preferential oxidation sites to form active intermediates for water oxidation. In addition, the asymmetry can stabilize the key MnIII intermediate, as demonstrated by electrochemical and spectrometric studies. This study delivers a convenient strategy to prepare unique nanosheet assemblies for electrocatalysis and fundamental understandings of oxygen evolution chemistry.
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Affiliation(s)
- Hongfei Liu
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ;
| | - Xueqing Gao
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ;
| | - Xiaolong Yao
- Department of Electronics , Nankai University , Tianjin 300071 , China .
| | - Mingxing Chen
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Guojun Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ;
| | - Jing Qi
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ;
| | - Xueli Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ;
| | - Weichao Wang
- Department of Electronics , Nankai University , Tianjin 300071 , China .
| | - Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ;
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ; .,Department of Chemistry , Renmin University of China , Beijing 100872 , China
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28
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Huang J, Zhong S, Dai Y, Liu CC, Zhang H. Effect of MnO 2 Phase Structure on the Oxidative Reactivity toward Bisphenol A Degradation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:11309-11318. [PMID: 30189143 DOI: 10.1021/acs.est.8b03383] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Manganese dioxides (MnO2) are among important environmental oxidants in contaminant removal; however, most existing work has only focused on naturally abundant MnO2. We herein report the effects of different phase structures of synthetic MnO2 on their oxidative activity with regard to contaminant degradation. Bisphenol A (BPA), a frequently detected contaminant in the environment, was used as a probe compound. A total of eight MnO2 with five different phase structures (α-, β-, γ-, δ-, and λ-MnO2) were successfully synthesized with different methods. The oxidative reactivity of MnO2, as quantified by pseudo-first-order rate constants of BPA oxidation, followed the order of δ-MnO2-1 > δ-MnO2-2 > α-MnO2-1 > α-MnO2-2 ≈ γ-MnO2 > λ-MnO2 > β-MnO2-2 > β-MnO2-1. Extensive characterization was then conducted for MnO2 crystal structure, morphology, surface area, reduction potential, conductivity, and surface Mn oxidation states and oxygen species. The results showed that the MnO2 oxidative reactivity correlated highly positively with surface Mn(III) content and negatively with surface Mn average oxidation state but correlated poorly with all other properties. This indicates that surface Mn(III) played an important role in MnO2 oxidative reactivity. For the same MnO2 phase structure synthesized by different methods, higher surface area, reduction potential, conductivity, or surface adsorbed oxygen led to higher reactivity, suggesting that these properties play a secondary role in the reactivity. These findings provide general guidance for designing active MnO2 for cost-effective water and wastewater treatment.
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29
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Shahamirifard SA, Ghaedi M, Razmi Z, Hajati S. A simple ultrasensitive electrochemical sensor for simultaneous determination of gallic acid and uric acid in human urine and fruit juices based on zirconia-choline chloride-gold nanoparticles-modified carbon paste electrode. Biosens Bioelectron 2018; 114:30-36. [PMID: 29775856 DOI: 10.1016/j.bios.2018.05.009] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 04/25/2018] [Accepted: 05/07/2018] [Indexed: 12/24/2022]
Abstract
The determination of gallic acid (GA) and uric acid (UA) is essential due to their biological properties. Numerous methods have been reported for the analysis of GA and UA in various real samples. However, the development of a simple, rapid and practical sensor still remains a great challenge. Here, a carbon paste electrode (CPE) was modified by nanocomposite containing zirconia nanoparticles (ZrO2NPs), Choline chloride (ChCl) and gold nanoparticles (AuNPs) to construct ZrO2-ChCl-AuNPs/CPE as electrochemical sensor for the simultaneous electro-oxidation of GA and UA. Characterization was performed by Fourier transform infrared spectroscopy, X-ray diffraction, field emission scanning electron microscopy and energy dispersive X-ray spectroscopy. The modified electrode was investigated by different methods including electrochemical impedance spectroscopy and cyclic voltammetry. Kinetic parameters such as charge transfer coefficient, standard heterogeneous electron transfer rate constant and other parameters were calculated via voltammetry techniques. Differential pulse voltammetry was used for simultaneous determination of GA and UA applying the ZrO2-ChCl-AuNPs/CPE electrode. At the optimum conditions, this sensor showed a linear response in the ranges 0.22- 55 and 0.12-55 µM for GA and UA, respectively. In addition, low detection limits of 25 and 15 nM were obtained for GA and UA, respectively. Furthermore, ZrO2-ChCl-AuNPs/CPE was successfully applied for the independent determination of GA in green tea and fruit juice as well as the simultaneous determination of GA and UA in human urine samples.
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Affiliation(s)
| | - Mehrorang Ghaedi
- Department of Chemistry, Yasouj University, Yasouj 75918-74831, Iran.
| | - Zahra Razmi
- Department of Chemistry, Yasouj University, Yasouj 75918-74831, Iran
| | - Shaaker Hajati
- Department of Semiconductors, Materials and Energy Research Center (MERC), P.O. Box 31787-316, Tehran, Iran.
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30
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Zhang J, Liu J, Xi L, Yu Y, Chen N, Sun S, Wang W, Lange KM, Zhang B. Single-Atom Au/NiFe Layered Double Hydroxide Electrocatalyst: Probing the Origin of Activity for Oxygen Evolution Reaction. J Am Chem Soc 2018. [DOI: 10.1021/jacs.8b00752] [Citation(s) in RCA: 628] [Impact Index Per Article: 104.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jingfang Zhang
- Department of Chemistry, School of Science, and Tianjin Key Laboratory of Molecular Optoelectronic Science, Tianjin University, Tianjin 300072, China
| | - Jieyu Liu
- Department of Electronics, Nankai University, Tianjin 300071, China
| | - Lifei Xi
- Young Investigator Group Operando Characterization of Solar Fuel Materials (EE-NOC), Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin 12489, Germany
| | - Yifu Yu
- Department of Chemistry, School of Science, and Tianjin Key Laboratory of Molecular Optoelectronic Science, Tianjin University, Tianjin 300072, China
| | - Ning Chen
- Canadian Light Source, Saskatoon, Saskatchewan S7N 2 V3, Canada
| | - Shuhui Sun
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, Varennes, Quebec J3X 1S2, Canada
| | - Weichao Wang
- Department of Electronics, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Kathrin M. Lange
- Young Investigator Group Operando Characterization of Solar Fuel Materials (EE-NOC), Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin 12489, Germany
- Physikalische Chemie, Universität Bielefeld, Universitätsstr. 25, D-33615 Bielefeld, Germany
| | - Bin Zhang
- Department of Chemistry, School of Science, and Tianjin Key Laboratory of Molecular Optoelectronic Science, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
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31
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Ooka H, Takashima T, Yamaguchi A, Hayashi T, Nakamura R. Element strategy of oxygen evolution electrocatalysis based on in situ spectroelectrochemistry. Chem Commun (Camb) 2018; 53:7149-7161. [PMID: 28466887 DOI: 10.1039/c7cc02204b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Oxygen evolution electrocatalysis has received extensive attention due to its significance in biology, chemistry, and technology. However, it is still unclear how the abundant 3d-elements can be used to drive the four-electron oxidation of water as efficiently as in Nature. In this Feature Article, we will propose a design strategy concerning the optimization of the charge accumulation process based on our ongoing spectroelectrochemical study on Mn, Fe, and Ir oxygen evolution catalysts. Spectroscopic identification of the reaction intermediates showed that the activity of MnO2 and Fe2O3 was dictated by the generation of Mn3+ and Fe4+, whereas in the case of IrOx, the activity did not correlate with the valence change of Ir. The efficiency of charge accumulation through valence change is closely linked with the spin configuration of the metal center, because charge disproportionation, which was found to inhibit charge accumulation in the high-spin 3d metals, requires an electron in the eg orbital. In addition to directly increasing the overpotential through the generation of an unstable intermediate, charge disproportionation inhibits charge accumulation by dissipating the total oxidative energy of the system. A favorable charge accumulation process may also be beneficial for electrode kinetics due to the enhanced coupling between reaction rates and electrochemical driving force. The model proposed in this study may help explain why low-spin 4d/5d rare metals are often more active than the abundant high-spin 3d materials for multi-electron transfer reactions in general, and provides new insight into how active 3d-metal catalysts can be synthesized by optimizing the energetics of both bond formation and charge accumulation.
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Affiliation(s)
- Hideshi Ooka
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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32
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Mallakpour S, Abdolmaleki A, Tabebordbar H. Employment of ultrasonic irradiation for production of poly(vinyl pyrrolidone)/modified alpha manganese dioxide nanocomposites: Morphology, thermal and optical characterization. ULTRASONICS SONOCHEMISTRY 2018; 41:163-171. [PMID: 29137739 DOI: 10.1016/j.ultsonch.2017.09.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 09/20/2017] [Accepted: 09/21/2017] [Indexed: 06/07/2023]
Abstract
This work explains the production, morphology, and features of novel nanocomposite (NC) established on poly(vinyl pyrrolidone) (PVP) as polymer background and modified alpha manganese dioxide (α-MnO2) nanorod (NR) asan efficient filler. At first, one-dimensional α-MnO2 nanorods (NRs) were produced by a hydrothermal technique and then they were amended with stearic acid (SA) by a solvothermal process. In following, the NCs were made by adding different volumes of α-MnO2-SA NR (1, 3 and 5wt%) in the PVP matrix through ultrasonic irradiation as a green, low-cost, fast, and useful technique. Structural and morphological descriptions confirm crystallinity of α-MnO2-SA NRs and showed that NRs have been separately dispersed in PVP matrix with rod-like morphology and diameter of about 40-60nm. The use of modifier and ultrasonic waves is accountable for good homogeneities of NRs. Thermogravimetric analysis revealed that thermal permanency of the obtained NCs has grown with increasing the α-MnO2-SA content. Also, the UV-vis absorption of NCs was enhanced with the incorporation of the modified α-MnO2 NR in PVP matrix. The substantial perfections in NCs properties are associated to compatible intermolecular relations between the surface modifying groups of the α-MnO2-SA and PVP chain.
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Affiliation(s)
- Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran; Research Institute for Nanotechnology and Advanced Materials, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran.
| | - Amir Abdolmaleki
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran; Research Institute for Nanotechnology and Advanced Materials, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran.
| | - Hashem Tabebordbar
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran
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33
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Bao X, Qin Z, Zhou T, Deng J. In-situ generation of gold nanoparticles on MnO 2 nanosheets for the enhanced oxidative degradation of basic dye (Methylene Blue). J Environ Sci (China) 2018; 65:236-245. [PMID: 29548394 DOI: 10.1016/j.jes.2017.03.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 03/03/2017] [Indexed: 06/08/2023]
Abstract
In this work, the gold nanoparticles (Au-NPs) were in-situ generated on the surface of MnO2 nanosheets to form MnO2/Au-NPs nanocomposite in a simple and cost-effective way. Multiple experiments were carried out to optimize the oxidation of basic dye (Methylene Blue (MB)), including the molar ratio of MnO2 to chloroauric acid (HAuCl4), the pH of the solution and the effect of initial material. Under the optimal condition, the highest degradation efficiency for MB achieved to 98.9% within 60 min, which was obviously better than commercial MnO2 powders (4.3%) and MnO2 nanosheets (74.2%). The enhanced oxidative degradation might attribute to the in-situ generation of ultra-small and highly-dispersed Au-NPs which enlarged the synergistic effect and/or interfacial effect between MnO2 nanosheets and Au-NPs and facilitated the uptake of electrons by MnO2 from MB during the oxidation, thus validating the application of MnO2/Au-NPs nanocomposite for direct removal of organic dyes from wastewater in a simple and convenient fashion.
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Affiliation(s)
- Xueqin Bao
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Zhen Qin
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Tianshu Zhou
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Jingjing Deng
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China.
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Tripkovic V, Hansen HA, Vegge T. Computational Screening of Doped α-MnO 2 Catalysts for the Oxygen Evolution Reaction. CHEMSUSCHEM 2018; 11:629-637. [PMID: 29194999 DOI: 10.1002/cssc.201701659] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Indexed: 06/07/2023]
Abstract
Minimizing energy and materials costs for driving the oxygen evolution reaction (OER) is paramount for the commercialization of water electrolysis cells and rechargeable metal-air batteries. Structural stability, catalytic activity, and electronic conductivity of pure and doped α-MnO2 for the OER are studied using density functional theory calculations. As model surfaces, we investigate the (110) and (100) facets, on which three possible active sites are identified: a coordination unsaturated, a bridge, and a bulk site. For pure and Cr-, Fe-, Co-, Ni-, Cu-, Zn-, Cd-, Mg-, Al-, Ga-, In-, Sc-, Ru-, Rh-, Ir-, Pd-, Pt-, Ti-, Zr-, Nb-, and Sn-doped α-MnO2 , the preferred valence at each site is imposed by adding/subtracting electron donors (hydrogen atoms) and electron acceptors (hydroxy groups). From a subset of stable dopants, Pd-doped α-MnO2 is identified as the best catalyst and the only material that can outperform pristine α-MnO2 . Different approaches to increase the bulk electron conductivity of semiconducting α-MnO2 are discussed.
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Affiliation(s)
- Vladimir Tripkovic
- Department of Energy Conversion and Storage, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Heine Anton Hansen
- Department of Energy Conversion and Storage, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Tejs Vegge
- Department of Energy Conversion and Storage, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
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35
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Balamurugan M, Saravanan N, Ha H, Lee YH, Nam KT. Involvement of high-valent manganese-oxo intermediates in oxidation reactions: realisation in nature, nano and molecular systems. NANO CONVERGENCE 2018; 5:18. [PMID: 30101051 PMCID: PMC6061251 DOI: 10.1186/s40580-018-0150-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 06/19/2018] [Indexed: 05/12/2023]
Abstract
Manganese plays multiple role in many biological redox reactions in which it exists in different oxidation states from Mn(II) to Mn(IV). Among them the high-valent manganese-oxo intermediate plays important role in the activity of certain enzymes and lessons from the natural system provide inspiration for new developments of artificial systems for a sustainable energy supply and various organic conversions. This review describes recent advances and key lessons learned from the nature on high-valent Mn-oxo intermediates. Also we focus on the elemental science developed from the natural system, how the novel strategies are realised in nano particles and molecular sites at heterogeneous and homogeneous reaction conditions respectively. Finally, perspectives on the utilisation of the high-valent manganese-oxo species towards other organic reactions are proposed.
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Affiliation(s)
- Mani Balamurugan
- Department of Materials Science and Engineering, Seoul National University, Seoul, 151-744 South Korea
| | - Natarajan Saravanan
- Department of Materials Science and Engineering, Seoul National University, Seoul, 151-744 South Korea
| | - Heonjin Ha
- Department of Materials Science and Engineering, Seoul National University, Seoul, 151-744 South Korea
| | - Yoon Ho Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, 151-744 South Korea
| | - Ki Tae Nam
- Department of Materials Science and Engineering, Seoul National University, Seoul, 151-744 South Korea
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36
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Najafpour MM, Madadkhani S, Akbarian S, Zand Z, Hołyńska M, Kompany-Zareh M, Tatsuya T, Singh JP, Chae KH, Allakhverdiev SI. Links between peptides and Mn oxide: nano-sized manganese oxide embedded in a peptide matrix. NEW J CHEM 2018. [DOI: 10.1039/c8nj02119h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on a poly-peptide/Mn oxide nanocomposite as a model for the water-oxidizing catalyst in Photosystem II.
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Affiliation(s)
- Mohammad Mahdi Najafpour
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
- Center of Climate Change and Global Warming
| | - Sepideh Madadkhani
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
| | - Somayyeh Akbarian
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
| | - Zahra Zand
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
| | - Małgorzata Hołyńska
- Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften (WZMW)
- Philipps-Universität Marburg
- Marburg D-35032
- Germany
| | - Mohsen Kompany-Zareh
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
- Center of Climate Change and Global Warming
| | - Tomo Tatsuya
- Department of Biology
- Faculty of Science
- Tokyo University of Science
- Tokyo 162-8601
- Japan
| | - Jitendra Pal Singh
- Advanced Analysis Center
- Korea Institute of Science and Technology
- Seoul 02792
- Republic of Korea
| | - Keun Hwa Chae
- Advanced Analysis Center
- Korea Institute of Science and Technology
- Seoul 02792
- Republic of Korea
| | - Suleyman I. Allakhverdiev
- Controlled Photobiosynthesis Laboratory
- Institute of Plant Physiology
- Russian Academy of Sciences
- Moscow 127276
- Russia
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37
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Zhang T, Ge X, Zhang Z, Tham NN, Liu Z, Fisher A, Lee JY. Improving the Electrochemical Oxygen Reduction Activity of Manganese Oxide Nanosheets with Sulfurization-Induced Nanopores. ChemCatChem 2017. [DOI: 10.1002/cctc.201701192] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tianran Zhang
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 10 Kent Ridge Crescent Singapore 119260 Singapore
- Cambridge Centre for Advanced Research in Energy Efficiency; 1 Create Way Singapore 138602 Singapore
| | - Xiaoming Ge
- Institute of Materials Research and Engineering (IMRE); 2 Fusionopolis Way Innovis 08-03 Singapore 138634 Singapore
| | - Zhao Zhang
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 10 Kent Ridge Crescent Singapore 119260 Singapore
| | - Nguk Neng Tham
- Institute of Materials Research and Engineering (IMRE); 2 Fusionopolis Way Innovis 08-03 Singapore 138634 Singapore
| | - Zhaolin Liu
- Institute of Materials Research and Engineering (IMRE); 2 Fusionopolis Way Innovis 08-03 Singapore 138634 Singapore
| | - Adrian Fisher
- Cambridge Centre for Advanced Research in Energy Efficiency; 1 Create Way Singapore 138602 Singapore
- Department of Chemical Engineering and Biotechnology; University of Cambridge; Pembroke Street Cambridge CB2 3RA UK
| | - Jim Yang Lee
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 10 Kent Ridge Crescent Singapore 119260 Singapore
- Cambridge Centre for Advanced Research in Energy Efficiency; 1 Create Way Singapore 138602 Singapore
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38
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Zhang B, Li Y, Valvo M, Fan L, Daniel Q, Zhang P, Wang L, Sun L. Electrocatalytic Water Oxidation Promoted by 3 D Nanoarchitectured Turbostratic δ-MnO x on Carbon Nanotubes. CHEMSUSCHEM 2017; 10:4472-4478. [PMID: 28675680 DOI: 10.1002/cssc.201700824] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 06/27/2017] [Indexed: 05/24/2023]
Abstract
The development of manganese-based water oxidation electrocatalysts is desirable for the production of solar fuels, as manganese is earth-abundant, inexpensive, non-toxic, and has been employed by the Photosystem II in nature for a billion years. Herein, we directly constructed a 3 D nanoarchitectured turbostratic δ-MnOx on carbon nanotube-modified nickel foam (MnOx /CNT/NF) by electrodeposition and a subsequent annealing process. The MnOx /CNT/NF electrode gives a benchmark catalytic current density (10 mA cm-2 ) at an overpotential (η) of 270 mV under alkaline conditions. A steady current density of 19 mA cm-2 is obtained during electrolysis at 1.53 V for 1.0 h. To the best of our knowledge, this work represents the most efficient manganese-oxide-based water oxidation electrode and demonstrates that manganese oxides, as a structural and functional model of oxygen-evolving complex (OEC) in Photosystem II, can also become comparable to those of most Ni- and Co-based catalysts.
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Affiliation(s)
- Biaobiao Zhang
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Yuanyuan Li
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Mario Valvo
- Department of Chemistry-Ångström Laboratory, Uppsala University, Uppsala, 75121, Sweden
| | - Lizhou Fan
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Quentin Daniel
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Peili Zhang
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Linqin Wang
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Licheng Sun
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis, DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology, Dalian, 116024, P. R. China
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39
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Zhang B, Chen H, Daniel Q, Philippe B, Yu F, Valvo M, Li Y, Ambre RB, Zhang P, Li F, Rensmo H, Sun L. Defective and “c-Disordered” Hortensia-like Layered MnOx as an Efficient Electrocatalyst for Water Oxidation at Neutral pH. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00420] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Biaobiao Zhang
- Department
of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Hong Chen
- Department
of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Quentin Daniel
- Department
of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Bertrand Philippe
- Department
of Physics and Astronomy, Uppsala University, Box 516, SE-75120, Uppsala, Sweden
| | - Fengshou Yu
- State
Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis,
DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), 116024 Dalian, People’s Republic of China
| | - Mario Valvo
- Department
of Chemistry - Ångström Laboratory, Uppsala University, Box 538, SE-75121 Uppsala, Sweden
| | - Yuanyuan Li
- Department
of Fibre and Polymer Technology, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Ram B. Ambre
- Department
of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Peili Zhang
- Department
of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Fei Li
- State
Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis,
DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), 116024 Dalian, People’s Republic of China
| | - Håkan Rensmo
- Department
of Physics and Astronomy, Uppsala University, Box 516, SE-75120, Uppsala, Sweden
| | - Licheng Sun
- Department
of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
- State
Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis,
DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), 116024 Dalian, People’s Republic of China
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40
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Zhu W, Wu Z, Foo GS, Gao X, Zhou M, Liu B, Veith GM, Wu P, Browning KL, Lee HN, Li H, Dai S, Zhu H. Taming interfacial electronic properties of platinum nanoparticles on vacancy-abundant boron nitride nanosheets for enhanced catalysis. Nat Commun 2017; 8:15291. [PMID: 28598418 PMCID: PMC5472761 DOI: 10.1038/ncomms15291] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 03/14/2017] [Indexed: 12/23/2022] Open
Abstract
Taming interfacial electronic effects on Pt nanoparticles modulated by their concomitants has emerged as an intriguing approach to optimize Pt catalytic performance. Here, we report Pt nanoparticles assembled on vacancy-abundant hexagonal boron nitride nanosheets and their use as a model catalyst to embrace an interfacial electronic effect on Pt induced by the nanosheets with N-vacancies and B-vacancies for superior CO oxidation catalysis. Experimental results indicate that strong interaction exists between Pt and the vacancies. Bader charge analysis shows that with Pt on B-vacancies, the nanosheets serve as a Lewis acid to accept electrons from Pt, and on the contrary, when Pt sits on N-vacancies, the nanosheets act as a Lewis base for donating electrons to Pt. The overall-electronic effect demonstrates an electron-rich feature of Pt after assembling on hexagonal boron nitride nanosheets. Such an interfacial electronic effect makes Pt favour the adsorption of O2, alleviating CO poisoning and promoting the catalysis.
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Affiliation(s)
- Wenshuai Zhu
- School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Zili Wu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Guo Shiou Foo
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Xiang Gao
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Mingxia Zhou
- Department of Chemical Engineering, Kansas State University, Manhattan, Kansas 66506, USA
| | - Bin Liu
- Department of Chemical Engineering, Kansas State University, Manhattan, Kansas 66506, USA
| | - Gabriel M. Veith
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Peiwen Wu
- School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Katie L. Browning
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Ho Nyung Lee
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Huaming Li
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Huiyuan Zhu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
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41
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Jian X, Liu S, Gao Y, Zhang W, He W, Mahmood A, M Subramaniyam C, Wang X, Mahmood N, Dou SX. Facile Synthesis of Three-Dimensional Sandwiched MnO 2@GCs@MnO 2 Hybrid Nanostructured Electrode for Electrochemical Capacitors. ACS APPLIED MATERIALS & INTERFACES 2017; 9:18872-18882. [PMID: 28523906 DOI: 10.1021/acsami.7b04416] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Designable control over the morphology and structure of active materials is highly desirable for achieving high-performance devices. Here, we develop a facile microwave-assisted synthesis to decorate MnO2 nanocrystals on three-dimensional (3D) graphite-like capsules (GCs) to obtain sandwich nanostructures (3D MnO2@GCs@MnO2) as electrode materials for electrochemical capacitors (ECs). A templated growth of the 3D GCs was carried out via catalytic chemical vapor deposition and MnO2 was decorated on the exterior and interior surfaces of the GC walls through microwave irradiation to build an engineered architecture with robust structural and morphological stability. The unique sandwiched architecture has a large interfacial surface area, and allows for rapid electrolyte diffusion through its hollow/open framework and fast electronic motion via the carbon backbone. Furthermore, the tough and rigid nature of GCs provides the necessary structural stability, and the strong synergy between MnO2 and GCs leads to high electrochemical activity in both neutral (265.1 F/g at 0.5 A/g) and alkaline (390 F/g at 0.5 A/g) electrolytes. The developed hybrid exhibits stable capacitance up to 6000 cycles in 1 M Na2SO4. The hybrid is a potential candidate for future ECs and the present study opens up an effective avenue to design hybrid materials for various applications.
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Affiliation(s)
- Xian Jian
- Center of Micro-Nano Functional Materials and Devices, School of Energy Science and Engineering, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China , Chengdu 611731, China
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong , North Wollongong, 2500, Australia
| | - Shiyu Liu
- Center of Micro-Nano Functional Materials and Devices, School of Energy Science and Engineering, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China , Chengdu 611731, China
| | - Yuqi Gao
- Center of Micro-Nano Functional Materials and Devices, School of Energy Science and Engineering, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China , Chengdu 611731, China
| | - Wanli Zhang
- Center of Micro-Nano Functional Materials and Devices, School of Energy Science and Engineering, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China , Chengdu 611731, China
| | - Weidong He
- Center of Micro-Nano Functional Materials and Devices, School of Energy Science and Engineering, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China , Chengdu 611731, China
| | - Asif Mahmood
- Department of Materials Science and Engineering, College of Engineering, Peking University , Beijing 178001, China
- Department of Physics, South University of Sciences and Technology , Shenzhen 518055, China
| | - Chandrasekar M Subramaniyam
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong , North Wollongong, 2500, Australia
| | - Xiaolin Wang
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong , North Wollongong, 2500, Australia
| | - Nasir Mahmood
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong , North Wollongong, 2500, Australia
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin University , Tianjin 300072, China
| | - Shi Xue Dou
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong , North Wollongong, 2500, Australia
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42
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Shinagawa T, Takanabe K. Towards Versatile and Sustainable Hydrogen Production through Electrocatalytic Water Splitting: Electrolyte Engineering. CHEMSUSCHEM 2017; 10:1318-1336. [PMID: 27984671 PMCID: PMC5413865 DOI: 10.1002/cssc.201601583] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 12/15/2016] [Indexed: 05/22/2023]
Abstract
Recent advances in power generation from renewable resources necessitate conversion of electricity to chemicals and fuels in an efficient manner. Electrocatalytic water splitting is one of the most powerful and widespread technologies. The development of highly efficient, inexpensive, flexible, and versatile water electrolysis devices is desired. This review discusses the significance and impact of the electrolyte on electrocatalytic performance. Depending on the circumstances under which the water splitting reaction is conducted, the required solution conditions, such as the identity and molarity of ions, may significantly differ. Quantitative understanding of such electrolyte properties on electrolysis performance is effective to facilitate the development of efficient electrocatalytic systems. The electrolyte can directly participate in reaction schemes (kinetics), affect electrode stability, and/or indirectly impact the performance by influencing the concentration overpotential (mass transport). This review aims to guide fine-tuning of the electrolyte properties, or electrolyte engineering, for (photo)electrochemical water splitting reactions.
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Affiliation(s)
- Tatsuya Shinagawa
- KAUST Catalysis Center and Physical Sciences and Engineering DivisionKing Abdullah University of Science and Technology (KAUST)4700 KAUSTThuwal23955-6900Saudi Arabia
| | - Kazuhiro Takanabe
- KAUST Catalysis Center and Physical Sciences and Engineering DivisionKing Abdullah University of Science and Technology (KAUST)4700 KAUSTThuwal23955-6900Saudi Arabia
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43
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Significant improvement in Mn 2O 3 transition metal oxide electrical conductivity via high pressure. Sci Rep 2017; 7:44078. [PMID: 28276479 PMCID: PMC5343433 DOI: 10.1038/srep44078] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 02/02/2017] [Indexed: 01/08/2023] Open
Abstract
Highly efficient energy storage is in high demand for next-generation clean energy applications. As a promising energy storage material, the application of Mn2O3 is limited due to its poor electrical conductivity. Here, high-pressure techniques enhanced the electrical conductivity of Mn2O3 significantly. In situ synchrotron micro X-Ray diffraction, Raman spectroscopy and resistivity measurement revealed that resistivity decreased with pressure and dramatically dropped near the phase transition. At the highest pressure, resistivity reduced by five orders of magnitude and the sample showed metal-like behavior. More importantly, resistivity remained much lower than its original value, even when the pressure was fully released. This work provides a new method to enhance the electronic properties of Mn2O3 using high-pressure treatment, benefiting its applications in energy-related fields.
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Jaquet B, Lazzari S, Colonna L, Colombo G, Soos M, Morbidelli M. Effects of Coalescence on Shear-Induced Gelation of Colloids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:1180-1188. [PMID: 28135093 DOI: 10.1021/acs.langmuir.6b03707] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Shearing lyophobic colloidal suspensions can lead to aggregation, followed by gelation, if the formed clusters grow to sizes large enough to percolate. If the temperature is set over the glass transition temperature of the suspended material, the particles embedded in the same aggregate start to coalesce with one another. Coalescence occurs to the finite viscosity of the particles' material, which leads to material diffusion from particle to particle. The driving force of this process is the reduction of the particle-dispersant interface and, as a consequence, the decrease the center-to-center separation of the particles. This leads to decreased cluster size, and hence a delayed gelation. Simultaneously, coalescence reinforces the particle-particle bonds formed upon aggregation, leading to clusters that are able to resist higher hydrodynamic forces before breaking up, hence leading to faster gelation. These two competing effects, combined with the natural complexity of colloidal aggregation makes it rather difficult to understand and predict which trend becomes dominant. In the present work, the shear-induced gelation of model polymeric colloidal systems with different glass transition temperatures has been studied. Starting with their interaction potential we investigate the impact of temperature on the gel time in concentrated suspensions (φ = 5%) under steady shear, followed by the effect of temperature on the stress-resistance of fully destabilized clusters under agitation. The results of the present work allow for a systematic view and deepened understanding of the factors governing shear-induced gelation in the presence of coalescence.
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Affiliation(s)
- Baptiste Jaquet
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich , Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Stefano Lazzari
- Department of Chemical Engineering, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Luca Colonna
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich , Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Gabriele Colombo
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich , Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Miroslav Soos
- Department of Chemical Engineering, University of Chemistry and Technology Prague , Technicka 5, 16628 Prague 6, Czech Republic
| | - Massimo Morbidelli
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich , Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
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Jin K, Seo H, Hayashi T, Balamurugan M, Jeong D, Go YK, Hong JS, Cho KH, Kakizaki H, Bonnet-Mercier N, Kim MG, Kim SH, Nakamura R, Nam KT. Mechanistic Investigation of Water Oxidation Catalyzed by Uniform, Assembled MnO Nanoparticles. J Am Chem Soc 2017; 139:2277-2285. [PMID: 28029792 DOI: 10.1021/jacs.6b10657] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The development of active water oxidation catalysts is critical to achieve high efficiency in overall water splitting. Recently, sub-10 nm-sized monodispersed partially oxidized manganese oxide nanoparticles were shown to exhibit not only superior catalytic performance for oxygen evolution, but also unique electrokinetics, as compared to their bulk counterparts. In the present work, the water-oxidizing mechanism of partially oxidized MnO nanoparticles was investigated using integrated in situ spectroscopic and electrokinetic analyses. We successfully demonstrated that, in contrast to previously reported manganese (Mn)-based catalysts, Mn(III) species are stably generated on the surface of MnO nanoparticles via a proton-coupled electron transfer pathway. Furthermore, we confirmed as to MnO nanoparticles that the one-electron oxidation step from Mn(II) to Mn(III) is no longer the rate-determining step for water oxidation and that Mn(IV)═O species are generated as reaction intermediates during catalysis.
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Affiliation(s)
- Kyoungsuk Jin
- Department of Materials Science and Engineering, Seoul National University , Seoul 151-742, Korea
| | - Hongmin Seo
- Department of Materials Science and Engineering, Seoul National University , Seoul 151-742, Korea
| | - Toru Hayashi
- Department of Applied Chemistry, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.,Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science (CSRS) , 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mani Balamurugan
- Department of Materials Science and Engineering, Seoul National University , Seoul 151-742, Korea
| | - Donghyuk Jeong
- Western Seoul Center, Korea Basic Science Institute (KBSI) , 150, Bukahyeon-ro, Seodaemun-gu, Seoul 120-140, Korea
| | - Yoo Kyung Go
- Western Seoul Center, Korea Basic Science Institute (KBSI) , 150, Bukahyeon-ro, Seodaemun-gu, Seoul 120-140, Korea
| | - Jung Sug Hong
- Department of Materials Science and Engineering, Seoul National University , Seoul 151-742, Korea
| | - Kang Hee Cho
- Department of Materials Science and Engineering, Seoul National University , Seoul 151-742, Korea
| | - Hirotaka Kakizaki
- Department of Applied Chemistry, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.,Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science (CSRS) , 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Nadège Bonnet-Mercier
- Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science (CSRS) , 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Min Gyu Kim
- Pohang Accelerator Laboratory, Pohang University of Science and Technology (POSTECH) , Pohang 790-784, Korea
| | - Sun Hee Kim
- Western Seoul Center, Korea Basic Science Institute (KBSI) , 150, Bukahyeon-ro, Seodaemun-gu, Seoul 120-140, Korea
| | - Ryuhei Nakamura
- Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science (CSRS) , 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Ki Tae Nam
- Department of Materials Science and Engineering, Seoul National University , Seoul 151-742, Korea
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Zhang G, Dong W, Huang X, Zou J. Oxygen vacancy induced enhancement of photochemical water oxidation on calcium manganese oxide catalyst. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2016.10.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Facile synthetic route for the preparation of PVC/α-MnO2-PVA nanocomposites: morphology, thermal, mechanical and Cd(II) adsorption properties. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1876-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Mahdi Najafpour M, Jafarian Sedigh D, Maedeh Hosseini S, Zaharieva I. Treated Nanolayered Mn Oxide by Oxidizable Compounds: A Strategy To Improve the Catalytic Activity toward Water Oxidation. Inorg Chem 2016; 55:8827-32. [DOI: 10.1021/acs.inorgchem.6b01334] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mohammad Mahdi Najafpour
- Department of Chemistry, and Center of
Climate Change and Global Warming, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Davood Jafarian Sedigh
- Department of Chemistry, and Center of
Climate Change and Global Warming, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Seyedeh Maedeh Hosseini
- Department of Chemistry, and Center of
Climate Change and Global Warming, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Ivelina Zaharieva
- Freie Universität Berlin, Fachbereich Physik, Arnimallee
14, D-14195 Berlin, Germany
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Cao M, Tang Z, Liu Q, Xu Y, Chen M, Lin H, Li Y, Gross E, Zhang Q. The Synergy between Metal Facet and Oxide Support Facet for Enhanced Catalytic Performance: The Case of Pd-TiO2. NANO LETTERS 2016; 16:5298-5302. [PMID: 27459637 DOI: 10.1021/acs.nanolett.6b02662] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The demand for catalyst with higher activity and higher selectivity is still a central issue in current material science community. On the basis of first-principles calculations, we demonstrate that the catalytic performance of the Pd-TiO2 hybrid nanostructures can be selectively promoted or depressed by choosing the suitable shaped Pd and TiO2 nanocrystals. To be more specific, the catalytic activities of Pd nanoparticles enclosed by (100) or (111) facets can be promoted more significantly when dosed on the TiO2(001) than on TiO2(101) under irradiation. Such theoretical prediction has then been further verified by the experimental observations in which the Pd(100)-TiO2(001) composites exhibit the highest catalytic performance toward the activation of oxygen among all the other shaped hybrid nanostructures. As a result, the selection of facets of support materials can provide an extra tuning parameter to control the catalytic activities of metal nanoparticles. This research opened up a new direction for designing and preparing catalysts with enhanced catalytic performance.
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Affiliation(s)
- Muhan Cao
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Zeyuan Tang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Qipeng Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Yong Xu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Min Chen
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Haiping Lin
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Youyong Li
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Elad Gross
- Institute of Chemistry, The Hebrew University of Jerusalem , Jerusalem 9190401, Israel
| | - Qiao Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
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