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Psotta C, Nilsson EJ, Sjöberg T, Falk M. Bacteria-Infected Artificial Urine Characterization Based on a Combined Approach Using an Electronic Tongue Complemented with 1H-NMR and Flow Cytometry. BIOSENSORS 2023; 13:916. [PMID: 37887109 PMCID: PMC10605348 DOI: 10.3390/bios13100916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 09/22/2023] [Accepted: 10/04/2023] [Indexed: 10/28/2023]
Abstract
The prevailing form of bacterial infection is within the urinary tract, encompassing a wide array of bacteria that harness the urinary metabolome for their growth. Through their metabolic actions, the chemical composition of the growth medium undergoes modifications as the bacteria metabolize urine compounds, leading to the subsequent release of metabolites. These changes can indirectly indicate the existence and proliferation of bacterial organisms. Here, we investigate the use of an electronic tongue, a powerful analytical instrument based on a combination of non-selective chemical sensors with a partial specificity for data gathering combined with principal component analysis, to distinguish between infected and non-infected artificial urine samples. Three prevalent bacteria found in urinary tract infections were investigated, Escherichia coli, Klebsiella pneumoniae, and Enterococcus faecalis. Furthermore, the electronic tongue analysis was supplemented with 1H NMR spectroscopy and flow cytometry. Bacteria-specific changes in compound consumption allowed for a qualitative differentiation between artificial urine medium and bacterial growth.
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Affiliation(s)
| | | | | | - Magnus Falk
- Biomedical Science, Faculty of Health and Society, and Biofilms Research Center, Malmö University, 205 06 Malmö, Sweden; (C.P.); (E.J.N.); (T.S.)
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2
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Falk M, Psotta C, Cirovic S, Ohlsson L, Shleev S. Electronic Tongue for Direct Assessment of SARS-CoV-2-Free and Infected Human Saliva-A Feasibility Study. BIOSENSORS 2023; 13:717. [PMID: 37504115 PMCID: PMC10377364 DOI: 10.3390/bios13070717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/21/2023] [Accepted: 07/04/2023] [Indexed: 07/29/2023]
Abstract
An electronic tongue is a powerful analytical instrument based on an array of non-selective chemical sensors with a partial specificity for data gathering and advanced pattern recognition methods for data analysis. Connecting electronic tongues with electrochemical techniques for data collection has led to various applications, mostly within sensing for food quality and environmental monitoring, but also in biomedical research for the analyses of different bioanalytes in human physiological fluids. In this paper, an electronic tongue consisting of six electrodes (viz., gold, platinum, palladium, titanium, iridium, and glassy carbon) was designed and tested in authentic (undiluted, unpretreated) human saliva samples from eight volunteers, collected before and during the COVID-19 pandemic. Investigations of 11 samples using differential pulse voltammetry and a principal component analysis allowed us to distinguish between SARS-CoV-2-free and infected authentic human saliva. This work, as a proof-of-principle demonstration, provides a new perspective for the use of electronic tongues in the field of enzyme-free electrochemical biosensing, highlighting their potential for future applications in non-invasive biomedical analyses.
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Affiliation(s)
- Magnus Falk
- Biomedical Science, Faculty of Health and Society, and Biofilms Research Center, Malmö University, 205 06 Malmö, Sweden
| | - Carolin Psotta
- Biomedical Science, Faculty of Health and Society, and Biofilms Research Center, Malmö University, 205 06 Malmö, Sweden
| | - Stefan Cirovic
- Biomedical Science, Faculty of Health and Society, and Biofilms Research Center, Malmö University, 205 06 Malmö, Sweden
| | - Lars Ohlsson
- Biomedical Science, Faculty of Health and Society, and Biofilms Research Center, Malmö University, 205 06 Malmö, Sweden
| | - Sergey Shleev
- Biomedical Science, Faculty of Health and Society, and Biofilms Research Center, Malmö University, 205 06 Malmö, Sweden
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3
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Dai C, Popple D, Su C, Park JH, Watanabe K, Taniguchi T, Kong J, Zettl A. Evolution of nanopores in hexagonal boron nitride. Commun Chem 2023; 6:108. [PMID: 37277463 DOI: 10.1038/s42004-023-00899-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 05/08/2023] [Indexed: 06/07/2023] Open
Abstract
The engineering of atomically-precise nanopores in two-dimensional materials presents exciting opportunities for both fundamental science studies as well as applications in energy, DNA sequencing, and quantum information technologies. The exceptional chemical and thermal stability of hexagonal boron nitride (h-BN) suggest that exposed h-BN nanopores will retain their atomic structure even when subjected to extended periods of time in gas or liquid environments. Here we employ transmission electron microscopy to examine the time evolution of h-BN nanopores in vacuum and in air and find, even at room temperature, dramatic geometry changes due to atom motion and edge contamination adsorption, for timescales ranging from one hour to one week. The discovery of nanopore evolution contrasts with general expectations and has profound implications for nanopore applications of two-dimensional materials.
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Affiliation(s)
- Chunhui Dai
- Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Kavli Energy NanoSciences Institute at the University of California at Berkeley and the Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Derek Popple
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Kavli Energy NanoSciences Institute at the University of California at Berkeley and the Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Department of Chemistry, University of California at Berkeley, Berkeley, CA, 94720, USA
| | - Cong Su
- Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Kavli Energy NanoSciences Institute at the University of California at Berkeley and the Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Ji-Hoon Park
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Kenji Watanabe
- International Centre for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan
| | - Takashi Taniguchi
- International Centre for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan
| | - Jing Kong
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Alex Zettl
- Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA.
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
- Kavli Energy NanoSciences Institute at the University of California at Berkeley and the Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
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4
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Chatenet M, Pollet BG, Dekel DR, Dionigi F, Deseure J, Millet P, Braatz RD, Bazant MZ, Eikerling M, Staffell I, Balcombe P, Shao-Horn Y, Schäfer H. Water electrolysis: from textbook knowledge to the latest scientific strategies and industrial developments. Chem Soc Rev 2022; 51:4583-4762. [PMID: 35575644 PMCID: PMC9332215 DOI: 10.1039/d0cs01079k] [Citation(s) in RCA: 165] [Impact Index Per Article: 82.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Indexed: 12/23/2022]
Abstract
Replacing fossil fuels with energy sources and carriers that are sustainable, environmentally benign, and affordable is amongst the most pressing challenges for future socio-economic development. To that goal, hydrogen is presumed to be the most promising energy carrier. Electrocatalytic water splitting, if driven by green electricity, would provide hydrogen with minimal CO2 footprint. The viability of water electrolysis still hinges on the availability of durable earth-abundant electrocatalyst materials and the overall process efficiency. This review spans from the fundamentals of electrocatalytically initiated water splitting to the very latest scientific findings from university and institutional research, also covering specifications and special features of the current industrial processes and those processes currently being tested in large-scale applications. Recently developed strategies are described for the optimisation and discovery of active and durable materials for electrodes that ever-increasingly harness first-principles calculations and machine learning. In addition, a technoeconomic analysis of water electrolysis is included that allows an assessment of the extent to which a large-scale implementation of water splitting can help to combat climate change. This review article is intended to cross-pollinate and strengthen efforts from fundamental understanding to technical implementation and to improve the 'junctions' between the field's physical chemists, materials scientists and engineers, as well as stimulate much-needed exchange among these groups on challenges encountered in the different domains.
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Affiliation(s)
- Marian Chatenet
- University Grenoble Alpes, University Savoie Mont Blanc, CNRS, Grenoble INP (Institute of Engineering and Management University Grenoble Alpes), LEPMI, 38000 Grenoble, France
| | - Bruno G Pollet
- Hydrogen Energy and Sonochemistry Research group, Department of Energy and Process Engineering, Faculty of Engineering, Norwegian University of Science and Technology (NTNU) NO-7491, Trondheim, Norway
- Green Hydrogen Lab, Institute for Hydrogen Research (IHR), Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, Québec G9A 5H7, Canada
| | - Dario R Dekel
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
- The Nancy & Stephen Grand Technion Energy Program (GTEP), Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - Fabio Dionigi
- Department of Chemistry, Chemical Engineering Division, Technical University Berlin, 10623, Berlin, Germany
| | - Jonathan Deseure
- University Grenoble Alpes, University Savoie Mont Blanc, CNRS, Grenoble INP (Institute of Engineering and Management University Grenoble Alpes), LEPMI, 38000 Grenoble, France
| | - Pierre Millet
- Paris-Saclay University, ICMMO (UMR 8182), 91400 Orsay, France
- Elogen, 8 avenue du Parana, 91940 Les Ulis, France
| | - Richard D Braatz
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Martin Z Bazant
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Department of Mathematics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Michael Eikerling
- Chair of Theory and Computation of Energy Materials, Division of Materials Science and Engineering, RWTH Aachen University, Intzestraße 5, 52072 Aachen, Germany
- Institute of Energy and Climate Research, IEK-13: Modelling and Simulation of Materials in Energy Technology, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Iain Staffell
- Centre for Environmental Policy, Imperial College London, London, UK
| | - Paul Balcombe
- Division of Chemical Engineering and Renewable Energy, School of Engineering and Material Science, Queen Mary University of London, London, UK
| | - Yang Shao-Horn
- Research Laboratory of Electronics and Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Helmut Schäfer
- Institute of Chemistry of New Materials, The Electrochemical Energy and Catalysis Group, University of Osnabrück, Barbarastrasse 7, 49076 Osnabrück, Germany.
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5
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Development of Cu 3N electrocatalyst for hydrogen evolution reaction in alkaline medium. Sci Rep 2022; 12:2004. [PMID: 35132114 PMCID: PMC8821592 DOI: 10.1038/s41598-022-05953-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 01/19/2022] [Indexed: 11/28/2022] Open
Abstract
A wide variety of electrocatalysts has been evolved for hydrogen evolution reaction (HER) and it is reasonable to carry out HER with low cost electrocatalyst and a good efficiency. In this study, Cu3N was synthesized by nitridation of Cu2O and further utilized as an electrocatalyst towards HER. The developed Cu3N electrocatalyst was tested and results showed a low overpotential and moderate Tafel slope value (overpotential: 149.18 mV and Tafel slope 63.28 mV/dec at 10 mA/cm2) in alkaline medium with a charge transfer resistance value as calculated from electrochemical impendence spectroscopy being 1.44 Ω. Further from the experimental results, it was observed that the reaction kinetics was governed by Volmer–Heyrovsky mechanism. Moreover, Cu3N has shown an improved rate of electron transfer and enhanced accessible active sites, due to its structural properties and electrical conductivity. Thus the overall results show an excellent electrochemical performance, leading to a new pathway for the synthesis of low cost electrocatalyst for energy conversion and storage.
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6
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Kumar S, Lyalin A, Huang Z, Taketsugu T. Catalytic Oxidative Dehydrogenation of Light Alkanes over Oxygen Functionalized Hexagonal Boron Nitride. ChemistrySelect 2022. [DOI: 10.1002/slct.202103795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sonu Kumar
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) Hokkaido University Sapporo 001-0021 Japan
| | - Andrey Lyalin
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) Hokkaido University Sapporo 001-0021 Japan
- Center for Green Research on Energy and Environmental Materials National Institute for Materials Science (NIMS) Tsukuba 305-0044 Japan
| | - Zhenguo Huang
- School of Civil & Environmental Engineering University of Technology Sydney Ultimo New South Wales 2007 Australia
| | - Tetsuya Taketsugu
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) Hokkaido University Sapporo 001-0021 Japan
- Department of Chemistry Faculty of Science Hokkaido University Sapporo 060-0810 Japan
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7
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Boron compounds for catalytic applications. ADVANCES IN CATALYSIS 2022. [DOI: 10.1016/bs.acat.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Gautam C, Chelliah S. Methods of hexagonal boron nitride exfoliation and its functionalization: covalent and non-covalent approaches. RSC Adv 2021; 11:31284-31327. [PMID: 35496870 PMCID: PMC9041435 DOI: 10.1039/d1ra05727h] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 08/26/2021] [Indexed: 12/31/2022] Open
Abstract
The exfoliation of two-dimensional (2D) hexagonal boron nitride nanosheets (h-BNNSs) from bulk hexagonal boron nitride (h-BN) materials has received intense interest owing to their fascinating physical, chemical, and biological properties. Numerous exfoliation techniques offer scalable approaches for harvesting single-layer or few-layer h-BNNSs. Their structure is very comparable to graphite, and they have numerous significant applications owing to their superb thermal, electrical, optical, and mechanical performance. Exfoliation from bulk stacked h-BN is the most cost-effective way to obtain large quantities of few layer h-BN. Herein, numerous methods have been discussed to achieve the exfoliation of h-BN, each with advantages and disadvantages. Herein, we describe the existing exfoliation methods used to fabricate single-layer materials. Besides exfoliation methods, various functionalization methods, such as covalent, non-covalent, and Lewis acid-base approaches, including physical and chemical methods, are extensively described for the preparation of several h-BNNS derivatives. Moreover, the unique and potent characteristics of functionalized h-BNNSs, like enhanced solubility in water, improved thermal conductivity, stability, and excellent biocompatibility, lead to certain extensive applications in the areas of biomedical science, electronics, novel polymeric composites, and UV photodetectors, and these are also highlighted.
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Affiliation(s)
- Chandkiram Gautam
- Advanced Glass and Glass Ceramics Research Laboratory, Department of Physics, University of Lucknow Lucknow 226007 Uttar Pradesh India
| | - Selvam Chelliah
- Department of Pharmaceutical Sciences, Texas Southern University Houston USA
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9
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Priyadarsini A, Mallik BS. Comparative first principles-based molecular dynamics study of catalytic mechanism and reaction energetics of water oxidation reaction on 2D-surface. J Comput Chem 2021; 42:1138-1149. [PMID: 33851446 DOI: 10.1002/jcc.26528] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 03/22/2021] [Accepted: 03/26/2021] [Indexed: 01/02/2023]
Abstract
The study of the water-splitting process, which can proceed in 2e- as well as 4e- pathway, reveals that the process is entirely an uphill process, and the third step, that is, the oxooxo bond formation is the rate-determining step. The kinetic barrier of the oxygen evolution reaction (OER) on the 2D material catalysts in the presence of explicit solvents is scarcely studied. Here, we investigate the dynamics of the OER on the undoped graphene and the activation energy barrier of each step using first principles molecular dynamics simulations. Here we provide a detailed analysis of the kinetics of all the 4e- transfer steps of OER on the graphene surface. We also compare the accuracy of one of the density functional theory (DFT) functionals and density functional based tight binding (DFTB) method in explaining the OER steps. The comparative study reveals that DFTB can be used for performing metadynamics simulations quipped with much less computational cost than DFT functionals. By both Perdew-Burke-Ernzerhof and DFTB methods, the third step is revealed to be the rate-determining step with an energy barrier of 21.19 ± 0.51 and 20.23 ± 0.20 kcal mol-1 , respectively. DFTB gives an impression of being successful in predicting the energy barriers of OER in 4e- transfer pathway and comparable to the DFT method, and we would like to extend the use of DFTB for further studies with a sizable and complex system.
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Affiliation(s)
- Adyasa Priyadarsini
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy, Telangana, India
| | - Bhabani S Mallik
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy, Telangana, India
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10
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Lee J, Son N, Park NK, Ryu HJ, Baek JI, Sohn Y, Do JY, Kang M. Electrochemical behavior of the flower shaped CoMn2O4 spinel structure assembled for effective HER from water splitting. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138168] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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12
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Boron nitride nanosheets decorated with Au, Au-Ni, Au-Cu, or Au-Co nanoparticles as efficient electrocatalysts for hydrogen evolution reaction. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113312] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Rastogi PK, Sahoo KR, Thakur P, Sharma R, Bawari S, Podila R, Narayanan TN. Graphene-hBN non-van der Waals vertical heterostructures for four- electron oxygen reduction reaction. Phys Chem Chem Phys 2019; 21:3942-3953. [PMID: 30706063 DOI: 10.1039/c8cp06155f] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A novel vertical non-van der Waals (non-vdW) heterostructure of graphene and hexagonal boron nitride (G/hBN) is realized and its application in direct four-electron oxygen reduction reaction (ORR) in alkaline medium is established. The G/hBN differs from previously demonstrated vdW heterostructures, where it has a chemical bridging between graphene and hBN allowing a direct charge transfer - resulting in high ORR activity. The ORR efficacy of G/hBN is compared with that of graphene-hBN vdW structure and individual layers of graphene and hBN along with that of benchmark platinum/carbon (Pt/C). The ORR activity of G/hBN is found to be on par with Pt/C in terms of current density but with much higher electrochemical stability and methanol tolerance. The onset potential of the G/hBN is found to be improved from 780 mV at a glassy carbon electrode to 930 mV and 940 mV in gold and platinum electrodes, respectively, indicating its substrate-dependent catalytic activity. This opens possibilities of new benchmark catalysts of metals capped with G/hBN atomic layers, where the underneath metal is protected while keeping the activity similar to that of pristine metal. Density functional theory-based calculations are found to be supporting the observed augmented ORR performance of G/hBN.
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Affiliation(s)
- Pankaj Kumar Rastogi
- Tata Institute of Fundamental Research - Hyderabad, Sy. No. 36/P, Gopanapally Village, Serilingampally Mandal, Hyderabad - 500 107, India.
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14
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Liu DQ, Tao B, Ruan HC, Bentley CL, Unwin PR. Metal support effects in electrocatalysis at hexagonal boron nitride. Chem Commun (Camb) 2019; 55:628-631. [PMID: 30556069 DOI: 10.1039/c8cc08517j] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A scanning electrochemical droplet cell technique has been employed to screen the intrinsic electrocatalytic hydrogen evolution reaction (HER) activity of hexagonal boron nitride (h-BN) nanosheets supported on different metal substrates (Cu and Au). Local (spatially-resolved) voltammetry and Tafel analysis reveal that electronic interaction with the underlying metal substrate plays a significant role in modulating the electrocatalytic activity of h-BN, with Au-supported h-BN exhibiting significantly enhanced HER charge-transfer kinetics (exchange current is ca. two orders of magnitude larger) compared to Cu-supported h-BN, making the former material the superior support in a catalytic sense.
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Affiliation(s)
- Dan-Qing Liu
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, UK.
| | - Binglin Tao
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, UK.
| | - Hong-Cheng Ruan
- School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan 430073, China
| | - Cameron L Bentley
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, UK.
| | - Patrick R Unwin
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, UK.
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15
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Angizi S, Hatamie A, Ghanbari H, Simchi A. Mechanochemical Green Synthesis of Exfoliated Edge-Functionalized Boron Nitride Quantum Dots: Application to Vitamin C Sensing through Hybridization with Gold Electrodes. ACS APPLIED MATERIALS & INTERFACES 2018; 10:28819-28827. [PMID: 30074754 DOI: 10.1021/acsami.8b07332] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Two-dimensional boron nitride quantum dots (2D BNQDs) with excellent chemical stability, high photoluminescence efficiency, and low toxicity are a new class of advanced materials for biosensing and bioimaging applications. To overcome the current challenge about the lack of facile, scalable, and reproducible synthesis approach of BNQDs, we introduce a green and facile approach based on mechanochemical exfoliation of bulk h-BN particles in ethanol. Few-layered hydroxylated-functionalized QDs with a thickness of 1-2 nm and a lateral dimension of 2-6 nm have been prepared. The synthesized nanocrystals exhibit a strong fluorescence emission at 407 and 425 nm with a quantum efficiency of ∼6.2%. Spectroscopic analyses determine that interactions between oxygen groups of the solvent with boron sites occur, which along with the mechanical forces, lead to efficient exfoliation of the hexagonal structure and surface functionalization with -OH groups. We also demonstrate that the orbital interaction between BNQDs and the gold surface results in a profound electrochemical catalytic activity toward oxidation of vitamin C. It is shown that the BNQD-modified screen-printed gold electrode exhibits a decreased onset oxidation potential for about 0.37 V/AgCl. In addition to high catalytic activity, electrochemical studies also reveal that this electrode allows selective and sensitive detection of vitamin C with a good response over a wide range from 0.80 μM to 5.0 mM with a detection limit of 0.45 μM (S/N = 3) and a sensitivity of 1.3 μA μM-1 cm-2. Finally, the potential application of the hybrid sensor for detecting vitamin C in commercial drinks is demonstrated.
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Affiliation(s)
| | | | - Hajar Ghanbari
- School of Metallurgy and Materials Engineering , Iran University of Science and Technology , P.O. Box 163-16765, 16844 Tehran , Iran
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16
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Guha A, Veettil Vineesh T, Sekar A, Narayanaru S, Sahoo M, Nayak S, Chakraborty S, Narayanan TN. Mechanistic Insight into Enhanced Hydrogen Evolution Reaction Activity of Ultrathin Hexagonal Boron Nitride-Modified Pt Electrodes. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00938] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anku Guha
- Tata Institute of Fundamental Research-Hyderabad, Sy. No. 36/P, Gopanapally Village, Serilingampally Mandal, Ranga Reddy District, Hyderabad 500107, India
| | - Thazhe Veettil Vineesh
- Tata Institute of Fundamental Research-Hyderabad, Sy. No. 36/P, Gopanapally Village, Serilingampally Mandal, Ranga Reddy District, Hyderabad 500107, India
| | - Archana Sekar
- Tata Institute of Fundamental Research-Hyderabad, Sy. No. 36/P, Gopanapally Village, Serilingampally Mandal, Ranga Reddy District, Hyderabad 500107, India
| | - Sreekanth Narayanaru
- Tata Institute of Fundamental Research-Hyderabad, Sy. No. 36/P, Gopanapally Village, Serilingampally Mandal, Ranga Reddy District, Hyderabad 500107, India
| | - Mihir Sahoo
- School of Basic Sciences, Indian Institute of Technology, Bhubaneswar, Odisha 751013, India
| | - Saroj Nayak
- School of Basic Sciences, Indian Institute of Technology, Bhubaneswar, Odisha 751013, India
| | - Sudip Chakraborty
- Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box-516, Uppsala SE-75120, Sweden
| | - Tharangattu N. Narayanan
- Tata Institute of Fundamental Research-Hyderabad, Sy. No. 36/P, Gopanapally Village, Serilingampally Mandal, Ranga Reddy District, Hyderabad 500107, India
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17
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Elumalai G, Noguchi H, Dinh HC, Uosaki K. An efficient electrocatalyst for oxygen reduction to water - boron nitride nanosheets decorated with small gold nanoparticles (~ 5 nm) of narrow size distribution on gold substrate. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.09.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Jin H, Guo C, Liu X, Liu J, Vasileff A, Jiao Y, Zheng Y, Qiao SZ. Emerging Two-Dimensional Nanomaterials for Electrocatalysis. Chem Rev 2018; 118:6337-6408. [DOI: 10.1021/acs.chemrev.7b00689] [Citation(s) in RCA: 1178] [Impact Index Per Article: 196.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Huanyu Jin
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Chunxian Guo
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Xin Liu
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Jinlong Liu
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Anthony Vasileff
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Yan Jiao
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Yao Zheng
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Shi-Zhang Qiao
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
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Synthesis of armchair graphene nanoribbons from the 10,10'-dibromo-9,9'-bianthracene molecules on Ag(111): the role of organometallic intermediates. Sci Rep 2018; 8:3506. [PMID: 29472611 PMCID: PMC5823938 DOI: 10.1038/s41598-018-21704-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 02/01/2018] [Indexed: 11/08/2022] Open
Abstract
We investigate the bottom-up growth of N = 7 armchair graphene nanoribbons (7-AGNRs) from the 10,10′-dibromo-9,9′-bianthracene (DBBA) molecules on Ag(111) with the focus on the role of the organometallic (OM) intermediates. It is demonstrated that DBBA molecules on Ag(111) are partially debrominated at room temperature and lose all bromine atoms at elevated temperatures. Similar to DBBA on Cu(111), debrominated molecules form OM chains on Ag(111). Nevertheless, in contrast with the Cu(111) substrate, formation of polyanthracene chains from OM intermediates via an Ullmann-type reaction is feasible on Ag(111). Cleavage of C–Ag bonds occurs before the thermal threshold for the surface-catalyzed activation of C–H bonds on Ag(111) is reached, while on Cu(111) activation of C–H bonds occurs in parallel with the cleavage of the stronger C–Cu bonds. Consequently, while OM intermediates obstruct the Ullmann reaction between DBBA molecules on the Cu(111) substrate, they are required for the formation of polyanthracene chains on Ag(111). If the Ullmann-type reaction on Ag(111) is inhibited, heating of the OM chains produces nanographenes instead. Heating of the polyanthracene chains produces 7-AGNRs, while heating of nanographenes causes the formation of the disordered structures with the possible admixture of short GNRs.
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Hu G, Wu Z, Dai S, Jiang DE. Interface Engineering of Earth-Abundant Transition Metals Using Boron Nitride for Selective Electroreduction of CO 2. ACS APPLIED MATERIALS & INTERFACES 2018; 10:6694-6700. [PMID: 29385799 DOI: 10.1021/acsami.7b17600] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Two-dimensional atomically thin hexagonal boron nitride (h-BN) monolayers have attracted considerable research interest. Given the tremendous progress in the synthesis of h-BN monolayers on transition metals and their potential as electrocatalysts, we investigate the electrocatalytic activities of h-BN/Ni, h-BN/Co, and h-BN/Cu interfaces for CO2 reduction by the first-principles density functional theory. We find that with the h-BN monolayer on the metal, electrons transfer from the metal to the interface and accumulate under the B atoms. By calculating the binding energies of three key intermediates (H, HCOO, and COOH) for hydrogen evolution and CO2 reduction, we find that H binding on the metal can be significantly weakened by the h-BN monolayer, preventing the hydrogen evolution reaction (HER). However, the binding strength of HCOO is strong on both the metal and h-BN/metal, especially for Ni and Co, promoting the CO2 reduction channel. On the basis of the free-energy diagrams, we predict that h-BN/Ni and h-BN/Co will have very good electrocatalytic activities for CO2 reduction to HCOOH, while the competitive HER channel is filtered out by the surface h-BN monolayer. Our study opens a new way for selective electroreduction of CO2 via the interface engineering of the h-BN/metal system.
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Affiliation(s)
- Guoxiang Hu
- Department of Chemistry, University of California , Riverside, California 92521, United States
| | - Zili Wu
- Chemical Sciences Division and Center for Nanophase Materials Sciences, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
| | - Sheng Dai
- Chemical Sciences Division and Center for Nanophase Materials Sciences, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
- Department of Chemistry, The University of Tennessee , Knoxville, Tennessee 37996, United States
| | - De-En Jiang
- Department of Chemistry, University of California , Riverside, California 92521, United States
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Bawari S, Kaley NM, Pal S, Vineesh TV, Ghosh S, Mondal J, Narayanan TN. On the hydrogen evolution reaction activity of graphene–hBN van der Waals heterostructures. Phys Chem Chem Phys 2018; 20:15007-15014. [DOI: 10.1039/c8cp01020j] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work demonstrates the hydrogen evolution reaction from graphene–hBN van der Waals structures, where individual layers are inert towards this reaction.
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Affiliation(s)
- Sumit Bawari
- Tata Institute of Fundamental Research – Hyderabad
- Hyderabad – 500 107
- India
| | - Nisheal M. Kaley
- Tata Institute of Fundamental Research – Hyderabad
- Hyderabad – 500 107
- India
| | - Shubhadeep Pal
- Tata Institute of Fundamental Research – Hyderabad
- Hyderabad – 500 107
- India
| | | | - Shamasree Ghosh
- Tata Institute of Fundamental Research – Hyderabad
- Hyderabad – 500 107
- India
| | - Jagannath Mondal
- Tata Institute of Fundamental Research – Hyderabad
- Hyderabad – 500 107
- India
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Firestein KL, Leybo DV, Steinman AE, Kovalskii AM, Matveev AT, Manakhov AM, Sukhorukova IV, Slukin PV, Fursova NK, Ignatov SG, Golberg DV, Shtansky DV. BN/Ag hybrid nanomaterials with petal-like surfaces as catalysts and antibacterial agents. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:250-261. [PMID: 29441270 PMCID: PMC5789442 DOI: 10.3762/bjnano.9.27] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 12/27/2017] [Indexed: 05/08/2023]
Abstract
BN/Ag hybrid nanomaterials (HNMs) and their possible applications as novel active catalysts and antibacterial agents are investigated. BN/Ag nanoparticle (NP) hybrids were fabricated using two methods: (i) chemical vapour deposition (CVD) of BN NPs in the presence of Ag vapours, and (ii) ultraviolet (UV) decomposition of AgNO3 in a suspension of BN NPs. The hybrid microstructures were studied by high-resolution transmission electron microscopy (HRTEM), high-angular dark field scanning TEM imaging paired with energy dispersion X-ray (EDX) mapping, X-ray photoelectron spectroscopy (XPS), and infrared spectroscopy (FTIR). They were also characterized in terms of thermal stability, Ag+ ion release, catalytic and antibacterial activities. The materials synthesized via UV decomposition of AgNO3 demonstrated a much better catalytic activity in comparison to those prepared using the CVD method. The best catalytic characteristics (100% methanol conversion at 350 °C) were achieved using the UV BN/Ag HNMs without preliminary annealing at 600 °C in an oxidizing atmosphere. Both types of the BN/Ag HNMs possess a profound antibacterial effect against Escherichia coli K-261 bacteria.
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Affiliation(s)
- Konstantin L Firestein
- National University of Science and Technology “MISIS”, Leninsky prospect 4, Moscow, 119049, Russian Federation
- School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology (QUT), 2nd George st., Brisbane, QLD 4000, Australia
| | - Denis V Leybo
- National University of Science and Technology “MISIS”, Leninsky prospect 4, Moscow, 119049, Russian Federation
| | - Alexander E Steinman
- National University of Science and Technology “MISIS”, Leninsky prospect 4, Moscow, 119049, Russian Federation
| | - Andrey M Kovalskii
- National University of Science and Technology “MISIS”, Leninsky prospect 4, Moscow, 119049, Russian Federation
| | - Andrei T Matveev
- National University of Science and Technology “MISIS”, Leninsky prospect 4, Moscow, 119049, Russian Federation
| | - Anton M Manakhov
- National University of Science and Technology “MISIS”, Leninsky prospect 4, Moscow, 119049, Russian Federation
| | - Irina V Sukhorukova
- National University of Science and Technology “MISIS”, Leninsky prospect 4, Moscow, 119049, Russian Federation
| | - Pavel V Slukin
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region 142279, Russian Federation
| | - Nadezda K Fursova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region 142279, Russian Federation
| | - Sergey G Ignatov
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region 142279, Russian Federation
- Moscow State University, Department of Geocryology, Moscow 119992, Russian Federation
| | - Dmitri V Golberg
- School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology (QUT), 2nd George st., Brisbane, QLD 4000, Australia
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Namiki 1, Ibaraki 3050044, Japan
| | - Dmitry V Shtansky
- National University of Science and Technology “MISIS”, Leninsky prospect 4, Moscow, 119049, Russian Federation
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Fang Y, Wang X. Metal-Free Boron-Containing Heterogeneous Catalysts. Angew Chem Int Ed Engl 2017; 56:15506-15518. [DOI: 10.1002/anie.201707824] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Yuanxing Fang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry; Fuzhou University; Fuzhou 350002 P.R. China
| | - Xinchen Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry; Fuzhou University; Fuzhou 350002 P.R. China
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Affiliation(s)
- Yuanxing Fang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry; Fuzhou University; Fuzhou 350002 V.R. China
| | - Xinchen Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry; Fuzhou University; Fuzhou 350002 V.R. China
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Lyalin A, Uosaki K, Taketsugu T. Oxygen Reduction Reaction Catalyzed by Small Gold Cluster on h-BN/Au(111) Support. Electrocatalysis (N Y) 2017. [DOI: 10.1007/s12678-017-0395-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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