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Orgiani P, Braglia L, Polewczyk V, Nie Z, Lavini F, Punathum Chalil S, Chaluvadi SK, Rajak P, Morabito F, Dobovičnik E, Foglietti V, Torelli P, Riedo E, Ciancio R, Yang N, Aruta C. On the origin of the improved hydrogen evolution reaction in Mn- and Co-doped MoS 2. NANOSCALE 2024; 16:12237-12247. [PMID: 38847457 DOI: 10.1039/d4nr00876f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
In the field of hydrogen production, MoS2 demonstrates good catalytic properties for the hydrogen evolution reaction (HER) which improve when doped with metal cations. However, while the role of sulfur atoms as active sites in the HER is largely reported, the role of metal atoms (i.e. molybdenum or the dopant cations) has yet to be studied in depth. To understand the role of the metal dopant, we study MoS2 thin films doped with Co and Mn ions. We identify the contribution of the electronic bands of the Mn and Co dopants to the integral valence band of the material using in situ resonant photoemission measurements. We demonstrate that Mn and Co dopants act differently: Mn doping favors the shift of the S-Mo hybridized band towards the Fermi level, while in the case of Co doping it is the less hybridized Co band that shifts closer to the Fermi level. Doping with Mn increases the effectiveness of S as the active site, thus improving the HER, while doping with Co introduces the metallic site of Co as the active site, which is less effective in improving HER properties. We therefore clarify the role of the dopant cation in the electronic structure determining the active site for hydrogen adsorption/desorption. Our results pave the way for the design of efficient materials for hydrogen production via the doping route, which can be extended to different catalytic reactions in the field of energy applications.
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Affiliation(s)
- Pasquale Orgiani
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
| | - Luca Braglia
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
- Area Science Park, Padriciano 99, Trieste 34149, Italy
| | - Vincent Polewczyk
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
| | - Zhiwei Nie
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Francesco Lavini
- Tandon School of Engineering, New York University, New York, NY 11201, USA
| | | | | | - Piu Rajak
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
| | - Floriana Morabito
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
- Area Science Park, Padriciano 99, Trieste 34149, Italy
| | - Edvard Dobovičnik
- Department of Engineering and Architecture, University of Trieste, Trieste 34127, Italy
| | | | - Piero Torelli
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
| | - Elisa Riedo
- Tandon School of Engineering, New York University, New York, NY 11201, USA
| | - Regina Ciancio
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
- Area Science Park, Padriciano 99, Trieste 34149, Italy
| | - Nan Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Carmela Aruta
- CNR-SPIN, via del Fosso del Cavaliere 100, Roma 00133, Italy.
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2
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Rajagopal V, Mehla S, Jones LA, Bhargava SK. Nanoengineered Cobalt Electrocatalyst for Alkaline Oxygen Evolution Reaction. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:946. [PMID: 38869572 PMCID: PMC11173492 DOI: 10.3390/nano14110946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 05/18/2024] [Accepted: 05/24/2024] [Indexed: 06/14/2024]
Abstract
The alkaline oxygen evolution reaction (OER) remains a bottleneck in green hydrogen production owing to its slow reaction kinetics and low catalytic efficiencies of earth abundant electrocatalysts in the alkaline OER reaction. This study investigates the OER performance of hierarchically porous cobalt electrocatalysts synthesized using the dynamic hydrogen bubble templating (DHBT) method. Characterization studies revealed that electrocatalysts synthesized under optimized conditions using the DHBT method consisted of cobalt nanosheets, and hierarchical porosity with macropores distributed in a honeycomb network and mesopores distributed between cobalt nanosheets. Moreover, X-ray photoelectron spectroscopy studies revealed the presence of Co(OH)2 as the predominant surface cobalt species while Raman studies revealed the presence of the cubic Co3O4 phase in the synthesized electrocatalysts. The best performing electrocatalyst required only 360 mV of overpotential to initiate a current density of 10 mA cm-2, exhibited a Tafel slope of 37 mV dec-1, and stable OER activity over 24 h. The DHBT method offers a facile, low cost and rapid synthesis approach for preparation for highly efficient cobalt electrocatalysts.
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Affiliation(s)
| | | | | | - Suresh K. Bhargava
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, STEM College, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia; (V.R.); (S.M.)
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3
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Yonas S, Gicha BB, Adhikari S, Sabir FK, Tran VT, Nwaji N, Gonfa BA, Tufa LT. Electric-Field-Assisted Synthesis of Cu/MoS 2 Nanostructures for Efficient Hydrogen Evolution Reaction. MICROMACHINES 2024; 15:495. [PMID: 38675306 PMCID: PMC11052344 DOI: 10.3390/mi15040495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 03/23/2024] [Accepted: 03/28/2024] [Indexed: 04/28/2024]
Abstract
Molybdenum sulfide-oxide (MoS2, MS) emerges as the prime electrocatalyst candidate demonstrating hydrogen evolution reaction (HER) activity comparable to platinum (Pt). This study presents a facile electrochemical approach for fabricating a hybrid copper (Cu)/MoS2 (CMS) nanostructure thin-film electrocatalyst directly onto nickel foam (NF) without a binder or template. The synthesized CMS nanostructures were characterized utilizing energy-dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), X-ray diffraction (XRD), and electrochemical methods. The XRD result revealed that the Cu metal coating on MS results in the creation of an extremely crystalline CMS nanostructure with a well-defined interface. The hybrid nanostructures demonstrated higher hydrogen production, attributed to the synergistic interplay of morphology and electron distribution at the interface. The nanostructures displayed a significantly low overpotential of -149 mV at 10 mA cm-2 and a Tafel slope of 117 mV dec-1, indicating enhanced catalytic activity compared to pristine MoS2.This research underscores the significant enhancement of the HER performance and conductivity achieved by CMS, showcasing its potential applications in renewable energy.
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Affiliation(s)
- Surra Yonas
- Department of Applied Chemistry, Adama Science and Technology University, Adama P.O. Box 1888, Ethiopia (F.K.S.)
| | - Birhanu Bayissa Gicha
- Research Institute of Materials Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea;
| | - Samir Adhikari
- Department of Physics, Chungnam National University, Daejeon 34134, Republic of Korea;
| | - Fedlu Kedir Sabir
- Department of Applied Chemistry, Adama Science and Technology University, Adama P.O. Box 1888, Ethiopia (F.K.S.)
| | - Van Tan Tran
- Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 10000, Vietnam;
| | - Njemuwa Nwaji
- Institute of Fundamental Technological Research, Polish Academy of Sciences, 02-106 Warsaw, Poland;
| | - Bedasa Abdisa Gonfa
- Department of Applied Chemistry, Adama Science and Technology University, Adama P.O. Box 1888, Ethiopia (F.K.S.)
| | - Lemma Teshome Tufa
- Department of Applied Chemistry, Adama Science and Technology University, Adama P.O. Box 1888, Ethiopia (F.K.S.)
- Research Institute of Materials Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea;
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4
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Saha D, Yu HJ, Wang J, Prateek, Chen X, Tang C, Senger C, Pagaduan JN, Katsumata R, Carter KR, Zhou G, Bai P, Wu N, Watkins JJ. Mesoporous Single Atom-Cluster Fe-N/C Oxygen Evolution Electrocatalysts Synthesized with Bottlebrush Block Copolymer-Templated Rapid Thermal Annealing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:13729-13744. [PMID: 38457643 DOI: 10.1021/acsami.3c18693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
Current electrocatalysts for oxygen evolution reaction (OER) are either expensive (such as IrO2, RuO2) or/and exhibit high overpotential as well as sluggish kinetics. This article reports mesoporous earth-abundant iron (Fe)-nitrogen (N) doped carbon electrocatalysts with iron clusters and closely surrounding Fe-N4 active sites. Unique to this work is that the mechanically stable mesoporous carbon-matrix structure (79 nm in pore size) with well-dispersed nitrogen-coordinated Fe single atom-cluster is synthesized via rapid thermal annealing (RTA) within only minutes using a self-assembled bottlebrush block copolymer (BBCP) melamine-formaldehyde resin composite template. The resulting porous structure and domain size can be tuned with the degree of polymerization of the BBCP backbone, which increases the electrochemically active surface area and improves electron transfer and mass transport for an effective OER process. The optimized electrocatalyst shows a required potential of 1.48 V (versus RHE) to obtain the current density of 10 mA/cm2 in 1 M KOH aqueous electrolyte and a small Tafel slope of 55 mV/decade at a given overpotential of 250 mV, which is significantly lower than recently reported earth-abundant electrocatalysts. Importantly, the Fe single-atom nitrogen coordination environment facilitates the surface reconstruction into a highly active oxyhydroxide under OER conditions, as revealed by X-ray photoelectron spectroscopy and in situ Raman spectroscopy, while the atomic clusters boost the single atoms reactive sites to prevent demetalation during the OER process. Density functional theory (DFT) calculations support that the iron nitrogen environment and reconstructed oxyhydroxides are electrocatalytically active sites as the kinetics barrier is largely reduced. This work has opened a new avenue for simple, rapid synthesis of inexpensive, earth-abundant, tailorable, mechanically stable, mesoporous carbon-coordinated single-atom electrocatalysts that can be used for renewable energy production.
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Affiliation(s)
- Dipankar Saha
- Conte Center for Polymer Research, Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Hsin-Jung Yu
- Conte Center for Polymer Research, Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Jiacheng Wang
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Prateek
- Conte Center for Polymer Research, Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Xiaobo Chen
- Department of Materials Science and Engineering, Binghamton University, State University of New York at Binghamton, Binghamton, New York 13850, United States
| | - Chaoyun Tang
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Claire Senger
- Conte Center for Polymer Research, Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - James Nicolas Pagaduan
- Conte Center for Polymer Research, Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Reika Katsumata
- Conte Center for Polymer Research, Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Kenneth R Carter
- Conte Center for Polymer Research, Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Guangwen Zhou
- Department of Materials Science and Engineering, Binghamton University, State University of New York at Binghamton, Binghamton, New York 13850, United States
| | - Peng Bai
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Nianqiang Wu
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - James J Watkins
- Conte Center for Polymer Research, Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
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5
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Sukhbaatar B, Qing W, Seo J, Yoon S, Yoo B. Uniformly dispersed ruthenium nanoparticles on porous carbon from coffee waste outperform platinum for hydrogen evolution reaction in alkaline media. Sci Rep 2024; 14:5850. [PMID: 38462651 PMCID: PMC10925596 DOI: 10.1038/s41598-024-56510-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 03/07/2024] [Indexed: 03/12/2024] Open
Abstract
Biowaste-derived carbon materials are a sustainable, environmentally friendly, and cost-effective way to create valuable materials. Activated carbon can be a supporting material for electrocatalysts because of its large specific surface area and porosity. However, activated carbon has low catalytic activity and needs to be functionalized with heteroatoms, metals, and combinations to improve conductivity and catalytic activity. Ruthenium (Ru) catalysts have great potential to replace bench market catalysts in hydrogen evolution reaction (HER) applications due to their similar hydrogen bond strength and relatively lower price. This study reports on the synthesis and characterizations of carbon-supported Ru catalysts with large surface areas (~ 1171 m2 g-1) derived from coffee waste. The uniformly dispersed Ru nanoparticles on the porous carbon has excellent electrocatalytic activity and outperformed the commercial catalyst platinum on carbon (Pt/C) toward the HER. As-synthesized catalyst needed only 27 mV to reach a current density of 10 mA cm-2, 58.4 mV dec-1 Tafel slope, and excellent long-term stability. Considering these results, the Ru nanoparticles on coffee waste-derived porous carbon can be utilized as excellent material that can replace platinum-based catalysts for the HER and contribute to the development of eco-friendly and low-cost electrocatalyst materials.
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Affiliation(s)
- Bayaraa Sukhbaatar
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, 15588, Korea
| | - Wang Qing
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, 15588, Korea
| | - Jinmyeong Seo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, 15588, Korea
| | - Sanghwa Yoon
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, 15588, Korea.
| | - Bongyoung Yoo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, 15588, Korea.
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Pastor E, Lian Z, Xia L, Ecija D, Galán-Mascarós JR, Barja S, Giménez S, Arbiol J, López N, García de Arquer FP. Complementary probes for the electrochemical interface. Nat Rev Chem 2024; 8:159-178. [PMID: 38388837 DOI: 10.1038/s41570-024-00575-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2024] [Indexed: 02/24/2024]
Abstract
The functions of electrochemical energy conversion and storage devices rely on the dynamic junction between a solid and a fluid: the electrochemical interface (EI). Many experimental techniques have been developed to probe the EI, but they provide only a partial picture. Building a full mechanistic understanding requires combining multiple probes, either successively or simultaneously. However, such combinations lead to important technical and theoretical challenges. In this Review, we focus on complementary optoelectronic probes and modelling to address the EI across different timescales and spatial scales - including mapping surface reconstruction, reactants and reaction modulators during operation. We discuss how combining these probes can facilitate a predictive design of the EI when closely integrated with theory.
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Affiliation(s)
- Ernest Pastor
- CNRS, IPR (Institut de Physique de Rennes), University of Rennes, Rennes, France.
- CNRS, Univ Rennes, DYNACOM (Dynamical Control of Materials Laboratory) - IRL2015, The University of Tokyo, Tokyo, Japan.
| | - Zan Lian
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Tarragona, Spain
| | - Lu Xia
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - David Ecija
- IMDEA Nanoscience, Campus Universitario de Cantoblanco, Madrid, Spain
| | - José Ramón Galán-Mascarós
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Tarragona, Spain
- ICREA, Barcelona, Spain
| | - Sara Barja
- Department of Polymers and Advanced Materials, Centro de Física de Materiales (CFM), University of the Basque Country UPV/EHU, San Sebastián, Spain
- Donostia International Physics Center (DIPC), San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| | - Sixto Giménez
- Institute of Advanced Materials (INAM) Universitat Jaume I, Castelló, Spain
| | - Jordi Arbiol
- ICREA, Barcelona, Spain
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Catalonia, Spain
| | - Núria López
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Tarragona, Spain
| | - F Pelayo García de Arquer
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona, Spain.
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7
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Satheesh D, Baskar L, Jayavelu Y, Dekshinamoorthy A, Sakthinathan VR, Daniel PJ, Vijayaraghavan S, Krishnan K, Rajendran R, Pachaiappan R, Manavalan K. Efficient electrochemical hydrogen evolution activity of nanostructured Ag 3PO 4/MoS 2 heterogeneous composite catalyst. CHEMOSPHERE 2024; 351:141220. [PMID: 38224749 DOI: 10.1016/j.chemosphere.2024.141220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 12/31/2023] [Accepted: 01/12/2024] [Indexed: 01/17/2024]
Abstract
Hydrogen (H2) generation by electrochemical water splitting is a key technique for sustainable energy applications. Two-dimensional (2D) transition-metal dichalcogenide (MoS2) and silver phosphate (Ag3PO4) possess excellent electrochemical hydrogen evolution reaction (HER) properties when they are combined together as a composite rather than individuals. Reports examining the HER activity by using Ag3PO4, especially, in combination with the 2D layered MoS2 are limited in literature. The weight fraction of MoS2 in Ag3PO4 is optimized for 1, 3, and 5 wt%. The Ag3PO4/1 wt % MoS2 combination exhibits enhanced HER activity with least overpotential of 235 mV among the other samples in the acidic medium. The synergistic effect of optimal nano-scale 2D layered MoS2 structure and Ag3PO4 is essential for creating higher electrochemical active surface area of 217 mF/cm2, and hence this leads to faster reaction kinetics in the HER. This work suggests the advantages of Ag3PO4/1 wt % MoS2 heterogeneous composite catalyst for electrochemical analysis and HER indicating lower resistivity and low Tafel slope value (179 mV/dec) among the prepared catalysts making it a promising candidate for its use in practical energy applications.
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Affiliation(s)
- Divyadharshini Satheesh
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, Tamilnadu, India
| | - Leena Baskar
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, Tamilnadu, India
| | - Yuvashree Jayavelu
- Department of Physics, National Institute of Technology, Warangal, Telangana, 506004, India
| | - Amuthan Dekshinamoorthy
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamilnadu, India
| | - Vishwath Rishaban Sakthinathan
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamilnadu, India
| | - Paul Joseph Daniel
- Department of Physics, National Institute of Technology, Warangal, Telangana, 506004, India
| | - Saranyan Vijayaraghavan
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamilnadu, India
| | - Karthik Krishnan
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamilnadu, India
| | - Rathika Rajendran
- Department of Physics, St. Theresa's Arts & Science College for Women, Tharangambadi, Mayiladuthurai District, Tamilnadu, 609313, India
| | - Rekha Pachaiappan
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería Mecánica, Universidad de Tarapacá, Avda. General Velasquez 1775 , Arica, Chile
| | - Kovendhan Manavalan
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, Tamilnadu, India.
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8
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Tartour AR, Sanad MMS, El-Hallag IS, Moharram YI. Novel mixed heterovalent (Mo/Co)O x-zerovalent Cu system as bi-functional electrocatalyst for overall water splitting. Sci Rep 2024; 14:4601. [PMID: 38409208 PMCID: PMC10897199 DOI: 10.1038/s41598-024-54934-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/19/2024] [Indexed: 02/28/2024] Open
Abstract
A novel hybrid ternary metallic electrocatalyst of amorphous Mo/Co oxides and crystallized Cu metal was deposited over Ni foam using a one-pot, simple, and scalable solvothermal technique. The chemical structure of the prepared ternary electrocatalyst was systematically characterized and confirmed via XRD, FTIR, EDS, and XPS analysis techniques. FESEM images of (Mo/Co)Ox-Cu@NF display the formation of 3D hierarchical structure with a particle size range of 3-5 µm. The developed (Mo/Co)Ox-Cu@NF ternary electrocatalyst exhibits the maximum activity with 188 mV and 410 mV overpotentials at 50 mA cm-2 for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively. Electrochemical impedance spectroscopy (EIS) results for the (Mo/Co)Ox-Cu@NF sample demonstrate the minimum charge transfer resistance (Rct) and maximum constant phase element (CPE) values. A two-electrode cell based on the ternary electrocatalyst just needs a voltage of about 1.86 V at 50 mA cm-2 for overall water splitting (OWS). The electrocatalyst shows satisfactory durability during the OWS for 24 h at 10 mA cm-2 with an increase of only 33 mV in the cell potential.
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Affiliation(s)
- Ahmed R Tartour
- Central Metallurgical Research and Development Institute, P.O. Box: 87, Helwan, Cairo, 11421, Egypt
- Electroplating Department, Factory 100, Abu-Zaabal Company for Engineering Industries, Cairo, Egypt
| | - Moustafa M S Sanad
- Central Metallurgical Research and Development Institute, P.O. Box: 87, Helwan, Cairo, 11421, Egypt.
| | | | - Youssef I Moharram
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt.
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9
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Paparoni F, Alizon G, Zitolo A, Rezvani SJ, Di Cicco A, Magnan H, Fonda E. A novel electrochemical flow-cell for operando XAS investigations in X-ray opaque supports. Phys Chem Chem Phys 2024; 26:3897-3906. [PMID: 38230576 DOI: 10.1039/d3cp04701f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Improvement of electrochemical technologies is one of the most popular topics in the field of renewable energy. However, this process requires a deep understanding of the electrode-electrolyte interface behavior under operando conditions. X-ray absorption spectroscopy (XAS) is widely employed to characterize electrode materials, providing element-selective oxidation state and local structure. Several existing cells allow studies as close as possible to realistic operating conditions, but most of them rely on the deposition of the electrodes on conductive and X-ray transparent materials, from where the radiation impinges the sample. In this work, we present a new electrochemical flow-cell for operando XAS that can be used with X-ray opaque substrates, since the signal is effectively detected from the electrode surface, as the radiation passes through a thin layer of electrolyte (∼17 μm). The electrolyte can flow over the electrode, reducing bubble formation and avoiding strong reactant concentration gradients. We show that high-quality data can be obtained under operando conditions, thanks to the high efficiency of the cell from the hard X-ray regime down to ∼4 keV. We report as a case study the operando XAS investigation at the Fe and Ni K-edges on Ni-doped γ-Fe2O3 films, epitaxially grown on Pt substrates. The effect of the Ni content on the catalytic performances for the oxygen evolution reaction is discussed.
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Affiliation(s)
- Francesco Paparoni
- Synchrotron SOLEIL, Départementale 128, 91190 Saint-Aubin, France.
- Sez. Fisica, Scuola di Scienze e Tecnologie, Universitá di Camerino, via Madonna delle Carceri, I-62032 Camerino, Italy
| | - Guillaume Alizon
- Synchrotron SOLEIL, Départementale 128, 91190 Saint-Aubin, France.
| | - Andrea Zitolo
- Synchrotron SOLEIL, Départementale 128, 91190 Saint-Aubin, France.
| | - Seyed Javad Rezvani
- Sez. Fisica, Scuola di Scienze e Tecnologie, Universitá di Camerino, via Madonna delle Carceri, I-62032 Camerino, Italy
- CNR-IOM, SS14 - km 163.5 in Area Science Park, 34149, Trieste, Italy
| | - Andrea Di Cicco
- Sez. Fisica, Scuola di Scienze e Tecnologie, Universitá di Camerino, via Madonna delle Carceri, I-62032 Camerino, Italy
| | - Hélène Magnan
- Université Paris-Saclay, CEA, CNRS, Service de Physique de l'Etat Condensé, F-91191 Gif-sur-Yvette, France
| | - Emiliano Fonda
- Synchrotron SOLEIL, Départementale 128, 91190 Saint-Aubin, France.
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10
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Xie Z, Qu W, Fisher EA, Fahlman J, Asazawa K, Hayashi T, Shirataki H, Murase H. Capacitance Determination for the Evaluation of Electrochemically Active Surface Area in a Catalyst Layer of NiFe-Layered Double Hydroxides for Anion Exchange Membrane Water Electrolyser. MATERIALS (BASEL, SWITZERLAND) 2024; 17:556. [PMID: 38591377 PMCID: PMC11154243 DOI: 10.3390/ma17030556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/12/2024] [Accepted: 01/20/2024] [Indexed: 04/10/2024]
Abstract
The determination of the electrochemically active surface area (ECSA) of a catalyst layer (CL) of a non-precious metal catalyst is of fundamental importance in optimizing the design of a durable CL for anion exchange membrane (AEM) water electrolysis, but has yet to be developed. Traditional double layer capacitance (Cdl), measured by cyclic voltammetry (CV), is not suitable for the estimation of the ECSA due to the nonconductive nature of Ni-based oxides and hydroxides in the non-Faradaic region. This paper analyses the applicability of electrochemical impedance spectroscopy (EIS) compared to CV in determining capacitances for the estimation of the ECSA of AEM-based CLs in an aqueous KOH electrolyte solution. A porous electrode transmission line (TML) model was employed to obtain the capacitance-voltage dependence from 1.0 V to 1.5 V at 20 mV intervals, covering both non-Faradic and Faradic regions. This allows for the identification of the contribution of a NiFe-layered double hydroxide (LDH) catalyst and supports in a CL, to capacitances in both non-Faradic and Faradic regions. A nearly constant double layer capacitance (Qdl) observed in the non-Faradic region represents the interfaces between catalyst supports and electrolytes. The capacitance determined in the Faradic region by EIS experiences a peak capacitance (QF), which represents the maximum achievable ECSA in an AEMCL during reactions. The EIS method was additionally validated in durability testing. An approximate 30% loss of QF was noted while Qdl remained unchanged following an eight-week test at 1 A/cm2 constant current density, implying that QF, determined by EIS, is sensitive to and therefore suitable for assessing the loss of ECSA. This universal method can provide a reasonable estimate of catalyst utilization and enable the monitoring of catalyst degradation in CLs, in particular in liquid alkaline electrolyte water electrolysis systems.
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Affiliation(s)
- Zhong Xie
- Energy, Mining and Environmental Research Centre, National Research Council of Canada, 4250 Wesbrook Mall, Vancouver, BC V6T 1W5, Canada; (W.Q.); (E.A.F.); (J.F.)
| | - Wei Qu
- Energy, Mining and Environmental Research Centre, National Research Council of Canada, 4250 Wesbrook Mall, Vancouver, BC V6T 1W5, Canada; (W.Q.); (E.A.F.); (J.F.)
| | - Elizabeth A. Fisher
- Energy, Mining and Environmental Research Centre, National Research Council of Canada, 4250 Wesbrook Mall, Vancouver, BC V6T 1W5, Canada; (W.Q.); (E.A.F.); (J.F.)
| | - Jason Fahlman
- Energy, Mining and Environmental Research Centre, National Research Council of Canada, 4250 Wesbrook Mall, Vancouver, BC V6T 1W5, Canada; (W.Q.); (E.A.F.); (J.F.)
| | - Koichiro Asazawa
- Applied Material Technology Center, Technology Division, Panasonic Holdings Corporation, 3-1-1, Yagumonakamachi, Moriguchi 570-8501, Osaka, Japan; (K.A.); (T.H.); (H.S.); (H.M.)
| | - Takao Hayashi
- Applied Material Technology Center, Technology Division, Panasonic Holdings Corporation, 3-1-1, Yagumonakamachi, Moriguchi 570-8501, Osaka, Japan; (K.A.); (T.H.); (H.S.); (H.M.)
| | - Hiroshi Shirataki
- Applied Material Technology Center, Technology Division, Panasonic Holdings Corporation, 3-1-1, Yagumonakamachi, Moriguchi 570-8501, Osaka, Japan; (K.A.); (T.H.); (H.S.); (H.M.)
| | - Hideaki Murase
- Applied Material Technology Center, Technology Division, Panasonic Holdings Corporation, 3-1-1, Yagumonakamachi, Moriguchi 570-8501, Osaka, Japan; (K.A.); (T.H.); (H.S.); (H.M.)
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11
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Mylsamy S, Karazhanov S, Subramanian B. Lattice distortion-driven band gap engineering and enhanced electrocatalytic activity of Mn-substituted nanostructured SrTiO 3 materials: A comprehensive investigation. CHEMOSPHERE 2024; 346:140577. [PMID: 37944765 DOI: 10.1016/j.chemosphere.2023.140577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/06/2023] [Accepted: 10/26/2023] [Indexed: 11/12/2023]
Abstract
The lattice distortion and electrocatalytic activity are investigated by the mono-substituent of Mn with different concentrations to generate localized states in the electronic structure of SrTiO3. The sol-gel approach has been employed to fabricate SrTiO3 and SrTi1-xMnxO3 nanostructures (NSs). The structural analysis indicates Mn incorporation into Ti sites of SrTiO3, which shifts the lattice towards a higher diffraction angle with a single-phase cubic structure. The optical absorption spectra exhibit a decrease in band gap from 3.27 to 1.89 eV and reveal the shift in band edge positions towards the visible region. XPS analysis is carried out to confirm the formation of oxygen vacancies and valence band edge position. For SrTi0.88Mn0.12O3, OER and HER have the overpotential of 445 and 157 mV at a current density of 100 and 10 mA cm-2. Hence, the substitution of Mn (x = 0.12) into SrTiO3 lattice results in lattice distortion that enhances the electrochemical performance compared to SrTiO3. The current work manifestly established the optimal Mn composition (x = 0.12) in SrTiO3 lattice as desirable materials with defective valence states for required electrocatalytic redox potential as well as the acceleration of charge transfer kinetics towards water splitting applications.
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Affiliation(s)
- Savithri Mylsamy
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600 025, Tamilnadu, India
| | - Smagul Karazhanov
- Urgench State University, 220100 Uzbekistan; Institute for Energy Technology (IFE), 2027-Kjeller, Norway
| | - Balakumar Subramanian
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600 025, Tamilnadu, India.
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12
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Ta XMC, Trần-Phú T, Yuwono JA, Nguyen TKA, Bui AD, Truong TN, Chang LC, Magnano E, Daiyan R, Simonov AN, Tricoli A. Optimal Coatings of Co 3 O 4 Anodes for Acidic Water Electrooxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2304650. [PMID: 37863809 DOI: 10.1002/smll.202304650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/23/2023] [Indexed: 10/22/2023]
Abstract
Implementation of proton-exchange membrane water electrolyzers for large-scale sustainable hydrogen production requires the replacement of scarce noble-metal anode electrocatalysts with low-cost alternatives. However, such earth-abundant materials often exhibit inadequate stability and/or catalytic activity at low pH, especially at high rates of the anodic oxygen evolution reaction (OER). Here, the authors explore the influence of a dielectric nanoscale-thin oxide layer, namely Al2 O3 , SiO2 , TiO2 , SnO2 , and HfO2 , prepared by atomic layer deposition, on the stability and catalytic activity of low-cost and active but insufficiently stable Co3 O4 anodes. It is demonstrated that the ALD layers improve both the stability and activity of Co3 O4 following the order of HfO2 > SnO2 > TiO2 > Al2 O3 , SiO2 . An optimal HfO2 layer thickness of 12 nm enhances the Co3 O4 anode durability by more than threefold, achieving over 42 h of continuous electrolysis at 10 mA cm-2 in 1 m H2 SO4 electrolyte. Density functional theory is used to investigate the superior performance of HfO2 , revealing a major role of the HfO2 |Co3 O4 interlayer forces in the stabilization mechanism. These insights offer a potential strategy to engineer earth-abundant materials for low-pH OER catalysts with improved performance from earth-abundant materials for efficient hydrogen production.
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Affiliation(s)
- Xuan Minh Chau Ta
- Nanotechnology Research Laboratory, College of Engineering and Computer Science, The Australian National University, Canberra, ACT, 2601, Australia
- Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Thành Trần-Phú
- Nanotechnology Research Laboratory, College of Engineering and Computer Science, The Australian National University, Canberra, ACT, 2601, Australia
- Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Jodie A Yuwono
- School of Chemical Engineering & Advanced Materials, The University of Adelaide, Adelaide, SA, 5005, Australia
- College of Engineering and Computer Science, Australian National University, Canberra, ACT, 2601, Australia
| | - Thi Kim Anh Nguyen
- Nanotechnology Research Laboratory, College of Engineering and Computer Science, The Australian National University, Canberra, ACT, 2601, Australia
- Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Anh Dinh Bui
- School of Engineering, The Australian National University, Canberra, ACT, 2601, Australia
| | - Thien N Truong
- School of Engineering, The Australian National University, Canberra, ACT, 2601, Australia
| | - Li-Chun Chang
- School of Engineering, The Australian National University, Canberra, ACT, 2601, Australia
| | - Elena Magnano
- IOM-CNR, Istituto Officina dei Materiali, AREA Science Park Basovizza, Trieste, 34149, Italy
| | - Rahman Daiyan
- Particles and Catalysis Research Laboratory, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | | | - Antonio Tricoli
- Nanotechnology Research Laboratory, College of Engineering and Computer Science, The Australian National University, Canberra, ACT, 2601, Australia
- Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, Sydney, NSW, 2006, Australia
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13
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Alves ICB, Dos Santos JRN, Marques EP, Sousa JKC, Beluomini MA, Stradiotto NR, Marques ALB. Electrochemical sensor based on carbon nanotube decorated with manganese oxide nanoparticles for naphthalene determination. ANAL SCI 2023; 39:1681-1692. [PMID: 37269536 DOI: 10.1007/s44211-023-00374-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/21/2023] [Indexed: 06/05/2023]
Abstract
In this work, an electrochemical sensor was developed for the determination of naphthalene (NaP) in well water samples, based on a glass carbon electrode (GCE) modified as a nanocomposite of manganese oxides (MnOx) and COOH-functionalized multi-walled carbon nanotubes (MWCNT). The synthesis of MnOx nanoparticles was performed by the sol-gel method. The nanocomposite was obtained by mixing MnOx and MWCNT with the aid of ultrasound, followed by stirring for 24 h. Surface modification facilitated the electron transfer process through the MnOx/MWCNT/GCE composite, which was used as an electrochemical sensor. The sensor and its material were characterized by cyclic voltammetry (CV), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Important parameters influencing electrochemical sensor performance (pH, composite ratios) were investigated and optimized. The MnOx/MWCNT/GCE sensor showed a wide linear range of 2.0-16.0 μM, a detection limit of 0.5 μM and a quantification limit of 1.8 μM, in addition to satisfactory repeatability (RSD of 7.8%) and stability (900 s) in the determination of NaP. The determination of NaP in a sample of water from a gas station well using the proposed sensor showed results with recovery between 98.1 and 103.3%. The results obtained suggest that the MnOx/MWCNT/GCE electrode has great potential for application in the detection of NaP in well water.
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Affiliation(s)
| | | | - Edmar Pereira Marques
- NEEP (LPQA & LAPQAP), PPG-BIONORTE, Federal University of Maranhão (UFMA), São Luis, MA, Brazil
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14
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Roschger M, Wolf S, Hasso R, Genorio B, Gorgieva S, Hacker V. Influence of the Electrode Deposition Method of Graphene-Based Catalyst Inks for ADEFC on Performance. ACS APPLIED MATERIALS & INTERFACES 2023; 15:40687-40699. [PMID: 37590042 PMCID: PMC10472432 DOI: 10.1021/acsami.3c09192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/08/2023] [Indexed: 08/18/2023]
Abstract
The utilization of graphene as a catalyst support has garnered significant attention due to its potential for enhancing fuel cell performance. However, a critical challenge in electrode production still lies in the electrode preparation technologies and the restacking of graphene sheets, which can greatly impact the fuel cell performance alongside with catalyst development. This study aimed to investigate the impact of different electrode deposition methods for N-rGO-based catalyst inks on catalyst layer morphology, with a specific focus on graphene sheet orientation and its influence on the performance of alkaline direct ethanol fuel cells (ADEFCs). The dispersion behavior and ink stability of the catalysts were assessed using ultraviolet-visible light (UV-vis), ζ potential, and dynamic light scattering techniques. The morphology and physical properties of the gas diffusion electrodes (GDEs) were analyzed through Brunauer-Emmett-Teller measurements, contact angle measurements and scanning electron microscopy (SEM) combined with energy-dispersive spectroscopy. The electrochemical behavior was evaluated both ex-situ, utilizing half-cell GDE measurements, and in situ, through single-cell tests. The N-rGO-based membrane electrode assembly, comprising Pt-free catalysts and a biobased membrane, exhibited outstanding performance in ADEFCs, as evidenced by high maximum power density values and long-term durability. The N-rGO-based membrane electrode assembly has demonstrated remarkable potential for high-performance fuel cells, presenting an exciting avenue for further exploration.
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Affiliation(s)
- Michaela Roschger
- Institute
of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, 8010 Graz, Austria
| | - Sigrid Wolf
- Institute
of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, 8010 Graz, Austria
| | - Richard Hasso
- Institute
of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, 8010 Graz, Austria
| | - Boštjan Genorio
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Selestina Gorgieva
- Faculty
of Mechanical Engineering, University of
Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia
| | - Viktor Hacker
- Institute
of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, 8010 Graz, Austria
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15
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Hieu HN, Nguyen VN, Nguyen VM, Phan TH. 3D-ordered porous CdS/AgI/ZnO nanostructures for high-performance photoelectrochemical water splitting. NANOTECHNOLOGY 2023; 34:465401. [PMID: 37551562 DOI: 10.1088/1361-6528/acedb3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 08/07/2023] [Indexed: 08/09/2023]
Abstract
3D-ordered porous CdS/AgI/ZnO nanostructures were designed to perform as high-performance photoelectrodes for photoelectrochemical (PEC) water-splitting applications. They rely on the advantages of an extremely large active surface area, high absorption capacity in the visible-light region, fast carrier separation and transportation caused by the intrinsic ladder-like band arrangement. These nanostructures were fabricated by employing a three-stage experiment in a sequence of hard mold-assisted electrochemical deposition, wet chemical method and deposition-precipitation. First, 3D-ordered ZnO nanostructures were electrochemically deposited using a polystyrene film as the sacrificed template. AgI nanoparticles were then decorated on the interfacial ZnO nanostructures by deposition-precipitation. Finally, these binary AgI/ZnO nanoporous networks were thoroughly wet-chemically coated with a CdS film to form a so-called 'ternary interfacial CdS/AgI/ZnO nanostructures'. The PEC water-splitting properties of the fabricated 3D nanostructures were systematically studied and compared. As a result, the highest efficiency of the fabricated 3D-ordered porous CdS/AgI/ZnO measured under the irradiation of solar simulation is about 5.2%, which is relatively 1.5, 3.5 and 11.3 times greater than that of the corresponding CdS/ZnO (3,4%), AgI/ZnO (1.5%) and pristine porous ZnO (0.46%) photoelectrodes, respectively. The significant improvement in the PEC activity is attributed to the enhanced charge separation and transport of ternary photoelectrodes caused by an unconventional ladder-like band arrangement formed between interfacial CdS-AgI-ZnO. Our study provides a promising strategy for developing such ternary photoelectrode generation that possesses higher stability and efficiency towards water-splitting processes.
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Affiliation(s)
- Hoang Nhat Hieu
- Department of Physics and Materials Science, Faculty of Natural Sciences, Quy Nhon University, 170 An Duong Vuong, Quy Nhon, Vietnam
| | - Van Nghia Nguyen
- Department of Physics and Materials Science, Faculty of Natural Sciences, Quy Nhon University, 170 An Duong Vuong, Quy Nhon, Vietnam
| | - Vuong Minh Nguyen
- Department of Physics and Materials Science, Faculty of Natural Sciences, Quy Nhon University, 170 An Duong Vuong, Quy Nhon, Vietnam
| | - Thanh Hai Phan
- Department of Physics and Materials Science, Faculty of Natural Sciences, Quy Nhon University, 170 An Duong Vuong, Quy Nhon, Vietnam
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16
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Nazari M, Ghaemmaghami M. Approach to Evaluation of Electrocatalytic Water Splitting Parameters, Reflecting Intrinsic Activity: Toward the Right Pathway. CHEMSUSCHEM 2023; 16:e202202126. [PMID: 36867113 DOI: 10.1002/cssc.202202126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 03/03/2023] [Indexed: 06/10/2023]
Abstract
The development of transition metal-based non-precious-metal electrocatalysts for energy storage and conversion systems has received a lot of interest recently. To further this subject in the proper way given the development of electrocatalysts, a fair comparison of their respective performance is necessary. This Review investigates the parameters used for the comparison of electrocatalyst activity. Significant evaluation criteria employed in electrochemical water splitting studies are the overpotential at defined current density usually at 10 mA per geometric surface area, Tafel slope, exchange current density, mass activity, specific activity and turnover frequency (TOF). This Review will discuss how to identify the specific activity and TOF by electrochemical and non-electrochemical methods to represent intrinsic activity as well as the benefits and uncertainties of each technique, ensuring that each method is applied correctly when calculating intrinsic activity metrics.
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Affiliation(s)
- Mahrokh Nazari
- Department of Chemistry, Tarbiat Modares University, P.O. Box, 14115-175, Tehran, Iran
| | - Mostafa Ghaemmaghami
- Department of Chemistry, Tarbiat Modares University, P.O. Box, 14115-175, Tehran, Iran
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17
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Guler AC, Antos J, Masar M, Urbanek M, Machovsky M, Kuritka I. Comprehensive evaluation of photoelectrochemical performance dependence on geometric features of ZnO nanorod electrodes. NANOSCALE ADVANCES 2023; 5:3091-3103. [PMID: 37260485 PMCID: PMC10228492 DOI: 10.1039/d3na00089c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 04/26/2023] [Indexed: 06/02/2023]
Abstract
The impact of geometric features, light absorption spectra, and electrochemical active surface area on photoelectrochemical properties was investigated in this work. Nanoforests of ZnO nanorods with rationally controlled morphologies were grown on ITO substrates by the hydrothermal method and utilized as a model for this purpose. The size of the nanorods was systematically adjusted by varying the concentration of polyethyleneimine as a cation surfactant in the growth solution. It was found that the emergent geometric characteristics (i.e. the aspect ratio) increased almost at the same pace as the electrochemically active surface area, but the light scattering effect slightly increased as a result of the random spatial orientation of the nanorods. The large surface area and the void space between nanorods increased the photon-to-current conversion efficiency by promoting the hole transfer process at the electrode/electrolyte interface. A maximum photocurrent density of 0.06 mA cm-2 (0.5 V vs. NHE) for smaller diameter and length ZnO nanorods (ZnO-P1) was obtained under 365 nm UV light illumination. Additionally, we provide visual evidence that a shorter photogenerated hole diffusion distance results in improved charge separation efficiency using Mn2+ as the photogenerated hole imaging agent. Therefore, the present work demonstrates a facile strategy for nanoforest morphology improvement for generating strong contact at the ZnO NR electrode/electrolyte interface, which is favourable in energy conversion and storage technologies.
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Affiliation(s)
- Ali Can Guler
- Centre of Polymer Systems, Tomas Bata University in Zlin Tr. T. Bati 5678 760 01 Zlin Czech Republic
| | - Jan Antos
- Centre of Polymer Systems, Tomas Bata University in Zlin Tr. T. Bati 5678 760 01 Zlin Czech Republic
| | - Milan Masar
- Centre of Polymer Systems, Tomas Bata University in Zlin Tr. T. Bati 5678 760 01 Zlin Czech Republic
| | - Michal Urbanek
- Centre of Polymer Systems, Tomas Bata University in Zlin Tr. T. Bati 5678 760 01 Zlin Czech Republic
| | - Michal Machovsky
- Centre of Polymer Systems, Tomas Bata University in Zlin Tr. T. Bati 5678 760 01 Zlin Czech Republic
| | - Ivo Kuritka
- Centre of Polymer Systems, Tomas Bata University in Zlin Tr. T. Bati 5678 760 01 Zlin Czech Republic
- Department of Chemistry, Faculty of Technology, Tomas Bata University in Zlín Vavrečkova 5669 760 01 Zlín Czech Republic
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18
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Wang D, Duan C, He H, Wang Z, Zheng R, Sun H, Liu Y, Liu C. Microwave solvothermal synthesis of Component-Tunable High-Entropy oxides as High-Efficient and stable electrocatalysts for oxygen evolution reaction. J Colloid Interface Sci 2023; 646:89-97. [PMID: 37182262 DOI: 10.1016/j.jcis.2023.05.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/20/2023] [Accepted: 05/06/2023] [Indexed: 05/16/2023]
Abstract
Transition-metal-based high-entropy oxides (HEOs) are appealing electrocatalysts for oxygen evolution reaction (OER) due to their unique structure, variable composition and electronic structure, outstanding electrocatalytic activity and stability. Herein, we propose a scalable high-efficiency microwave solvothermal strategy to fabricate HEO nano-catalysts with five earth-abundant metal elements (Fe, Co, Ni, Cr, and Mn) and tailor the component ratio to enhance the catalytic performance. (FeCoNi2CrMn)3O4 with a double Ni content exhibits the best electrocatalytic performance for OER, namely low overpotential (260 mV@10 mA cm-2), small Tafel slope and superb long-term durability without obvious potential change after 95 h in 1 M KOH. The extraordinary performance of (FeCoNi2CrMn)3O4 can be attributed to the large active surface area profiting from the nano structure, the optimized surface electronic state with high conductivity and suitable adsorption to intermediate benefitting from ingenious multiple-element synergistic effects, and the inherent structural stability of the high-entropy system. In addition, the obvious pH value dependable character and TMA+ inhibition phenomenon reveal that the lattice oxygen mediated mechanism (LOM) work together with adsorbate evolution mechanism (AEM) in the catalytic process of OER with the HEO catalyst. This strategy provides a new approach for the rapid synthesis of high-entropy oxide and inspires more rational designs of high-efficient electrocatalysts.
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Affiliation(s)
- Dan Wang
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China; School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China; Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao, China; Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 17035, Republic of Korea
| | - Chanqin Duan
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China; School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
| | - Huan He
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China; School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
| | - Zhiyuan Wang
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China; School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China; Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao, China.
| | - Runguo Zheng
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China; School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China; Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao, China
| | - Hongyu Sun
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
| | - Yanguo Liu
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China; School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China; Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao, China
| | - Chunli Liu
- Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 17035, Republic of Korea
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19
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Mladenović D, Daş E, Santos DMF, Bayrakçeken Yurtcan A, Šljukić B. Highly Efficient Oxygen Electrode Obtained by Sequential Deposition of Transition Metal-Platinum Alloys on Graphene Nanoplatelets. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16093388. [PMID: 37176270 PMCID: PMC10179827 DOI: 10.3390/ma16093388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/17/2023] [Accepted: 04/22/2023] [Indexed: 05/15/2023]
Abstract
A set of platinum (Pt) and earth-abundant transition metals (M = Ni, Fe, Cu) on graphene nanoplatelets (sqPtM/GNPs) was synthesised via sequential deposition to establish parallels between the synthesis method and the materials' electrochemical properties. sqPtM/GNPs were assessed as bifunctional electrocatalysts for oxygen evolution (OER) and reduction (ORR) reactions for application in unitised regenerative fuel cells and metal-air batteries. sqPtFe/GNPs showed the highest catalytic performance with a low potential difference of ORR half-wave potential and overpotential at 10 mA cm-2 during OER, a crucial parameter for bifunctional electrocatalysts benchmarking. A novel two-stage synthesis strategy led to higher electrocatalytic performance by facilitating the reactants' access to the active sites and reducing the charge-transfer resistance.
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Affiliation(s)
- Dušan Mladenović
- University of Belgrade, Faculty of Physical Chemistry, Studentski Trg 12-16, 11158 Belgrade, Serbia
| | - Elif Daş
- Department of Physics, Atatürk University, 25240 Erzurum, Turkey
| | - Diogo M F Santos
- Center of Physics and Engineering of Advanced Materials, Laboratory for Physics of Materials and Emerging Technologies, Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | | | - Biljana Šljukić
- University of Belgrade, Faculty of Physical Chemistry, Studentski Trg 12-16, 11158 Belgrade, Serbia
- Center of Physics and Engineering of Advanced Materials, Laboratory for Physics of Materials and Emerging Technologies, Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
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Skorupska M, Kowalska K, Tyc M, Ilnicka A, Szkoda M, Lukaszewicz JP. Exfoliated graphite with spinel oxide as an effective hybrid electrocatalyst for water splitting. RSC Adv 2023; 13:10215-10220. [PMID: 37006354 PMCID: PMC10065144 DOI: 10.1039/d3ra00589e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 03/21/2023] [Indexed: 04/03/2023] Open
Abstract
The aim of the conducted research was to develop hybrid nanostructures formed from MnCo2O4 and exfoliated graphite. Carbon added during the synthesis allowed for obtaining a well-distributed MnCo2O4 particle size with exposed active sites contributing to the increased electric conductivity. The influence of the weight ratios of carbon to a catalyst for hydrogen and oxygen evolution reactions was investigated. The new bifunctional catalysts for water splitting were tested in an alkaline medium with excellent electrochemical performance and very good working stability. The results for hybrid samples show better electrochemical performance compared to the pure MnCo2O4. The highest electrocatalytic activity was for sample MnCo2O4/EG (2/1), where the value of the overpotential was 1.66 V at 10 mA cm-2, and also for this sample a low value of Tafel slope (63 mV dec-1) was denoted.
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Affiliation(s)
- Malgorzata Skorupska
- Faculty of Chemistry, Nicolaus Copernicus University in Torun Gagarina 7 87-100 Torun Poland
| | - Kinga Kowalska
- Faculty of Chemistry, Nicolaus Copernicus University in Torun Gagarina 7 87-100 Torun Poland
| | - Magdalena Tyc
- Faculty of Chemistry, Nicolaus Copernicus University in Torun Gagarina 7 87-100 Torun Poland
| | - Anna Ilnicka
- Faculty of Chemistry, Nicolaus Copernicus University in Torun Gagarina 7 87-100 Torun Poland
| | - Mariusz Szkoda
- Faculty of Chemistry, Department of Chemistry and Technology of Functional Materials, Gdańsk University of Technology Narutowicza 11/12 80-233 Gdańsk Poland
- Advanced Materials Center, Gdańsk University of Technology Narutowicza 11/12 80-233 Gdańsk Poland
| | - Jerzy P Lukaszewicz
- Faculty of Chemistry, Nicolaus Copernicus University in Torun Gagarina 7 87-100 Torun Poland
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun Wilenska 4 87-100 Torun Poland
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21
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Zhang L, Feng J, Liu S, Tan X, Wu L, Jia S, Xu L, Ma X, Song X, Ma J, Sun X, Han B. Atomically Dispersed Ni-Cu Catalysts for pH-Universal CO 2 Electroreduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209590. [PMID: 36626852 DOI: 10.1002/adma.202209590] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/26/2022] [Indexed: 06/17/2023]
Abstract
CO2 electroreduction is of great significance to reduce CO2 emissions and complete the carbon cycle. However, the unavoidable carbonate formation and low CO2 utilization efficiency in neutral or alkaline electrolytes hinder its application at commercial scale. The development of CO2 reduction under acidic conditions provides a promising strategy, but the inhibition of the hydrogen evolution reaction is difficult. Herein, the first work to design a Ni-Cu dual atom catalyst supported on hollow nitrogen-doped carbon is reported for pH-universal CO2 electroreduction to CO. The catalyst shows a high CO Faradaic efficiency of ≈99% in acidic, neutral, and alkaline electrolytes, and the partial current densities of CO reach 190 ± 11, 225 ± 10, and 489 ± 14 mA cm-2 , respectively. In particular, the CO2 utilization efficiency under acidic conditions reaches 64.3%, which is twice as high as that of alkaline conditions. Detailed study indicates the existence of electronic interaction between Ni and Cu atoms. The Cu atoms push the Ni d-band center further toward the Fermi level, thereby accelerating the formation of *COOH. In addition, operando characterizations and density functional theory calculation are used to elucidate the possible reaction mechanism of CO2 to CO under acidic and alkaline electrolytes.
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Affiliation(s)
- Libing Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiaqi Feng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Shoujie Liu
- Chemistry and Chemical Engineering of Guangdong Laboratory, Shantou, 515063, China
| | - Xingxing Tan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Limin Wu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shunhan Jia
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liang Xu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiaodong Ma
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinning Song
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jun Ma
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiaofu Sun
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
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22
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Babaei A, Rezaei M. Development of a highly stable and active non-precious anode electrocatalyst for oxygen evolution reaction in acidic medium based on nickel and cobalt-containing antimony oxide. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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23
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Hengge E, Ihrenberger J, Steyskal EM, Buzolin R, Luckabauer M, Sommitsch C, Würschum R. Porosity evolution and oxide formation in bulk nanoporous copper dealloyed from a copper-manganese alloy studied by in situ resistometry. NANOSCALE ADVANCES 2023; 5:393-404. [PMID: 36756274 PMCID: PMC9846480 DOI: 10.1039/d2na00618a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 11/07/2022] [Indexed: 06/18/2023]
Abstract
The synthesis of bulk nanoporous copper (npCu) from a copper-manganese alloy by electrochemical dealloying and free corrosion as well as the electrochemical behaviour of the dealloyed structures is investigated by in situ resistometry. In comparison to the well-established nanoporous gold (npAu) system, npCu shows strongly suppressed reordering processes in the porous structure (behind the etch front), which can be attributed to pronounced manganese oxide formation. Characteristic variations with the electrolyte concentration and potential applied for dealloying could be observed. Cyclic voltammetry was used to clarify the electrochemical behaviour of npCu. Oxide formation is further investigated by SEM and EDX revealing a hybrid composite of copper and manganese oxide on the surface of a metallic copper skeleton. Platelet-like structures embedded in the porous structure are identified which are rich in manganese oxide after prolonged dealloying. As an outlook, this unique heterogeneous structure with a large surface area and the inherent properties of manganese and copper oxides may offer application potential for the development of electrodes for energy storage and catalysis.
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Affiliation(s)
- Elisabeth Hengge
- Institute of Materials Physics, Graz University of Technology Petersgasse 16 A-8010 Graz Austria +43 316 873-8481
| | - Jakob Ihrenberger
- Institute of Materials Physics, Graz University of Technology Petersgasse 16 A-8010 Graz Austria +43 316 873-8481
| | - Eva-Maria Steyskal
- Institute of Materials Physics, Graz University of Technology Petersgasse 16 A-8010 Graz Austria +43 316 873-8481
| | - Ricardo Buzolin
- Institute of Materials Science, Joining and Forming, Graz University of Technology Kopernikusgasse 24 A-8010 Graz Austria
- Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing Kopernikusgasse 24 8010 Graz Austria
| | - Martin Luckabauer
- Department of Mechanics of Solids, Surfaces and Systems, Faculty of Engineering Technology, University of Twente Drienerlolaan 5 7522NB Enschede The Netherlands
| | - Christof Sommitsch
- Institute of Materials Science, Joining and Forming, Graz University of Technology Kopernikusgasse 24 A-8010 Graz Austria
| | - Roland Würschum
- Institute of Materials Physics, Graz University of Technology Petersgasse 16 A-8010 Graz Austria +43 316 873-8481
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24
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Qian X, Chen W, Yang J, Chen S, Guan G. MOFs-derived bifunctional Ni-Fe-Mo sulfide electrode catalysts with hollow bipyramidal structures for efficient photovoltaics and hydrogen generation. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2022.141524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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Ahmed MJ, Perveen S, Hussain SG, Khan AA, Ejaz SMW, Rizvi SMA. Design of a facile, green and efficient graphene oxide-based electrochemical sensor for analysis of acetaminophen drug. CHEMICAL PAPERS 2023; 77:2275-2294. [PMID: 36589858 PMCID: PMC9792318 DOI: 10.1007/s11696-022-02628-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 12/10/2022] [Indexed: 12/28/2022]
Abstract
In this study an efficient and environment friendly electrochemical sensor has been designed for the analysis of acetaminophen (APAP) drug. Electrochemical impedance spectroscopy, differential pulse voltammetry and cyclic voltammetric techniques were used to demonstrate the fabricated erGO/GCE sensor performance. Voltammetric assessment of acetaminophen drug was done using bare GC electrode, drop-casted GO/GC electrode and erGO/GCE electrochemical sensor. Proposed sensor was precisely validated for APAP detection by differential pulse voltammetric technique. Subsequently LOD, LOQ, sensitivity and linearity were determined and found to be 7.23 nM, 21.909 nM, 20.14 μA nM-1 cm-2 and 0.0219-2.30 μM, respectively. The diffusion coefficient of APAP was determined by chronoamperometry, and it was found to be 2.24 × 10-5 cm2.s-1. The synthetic and analytical steps were assessed as per the Green Chemistry's 12 Principles giving a 66 score (acceptable) and 93 score (excellent) for the said steps, respectively. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s11696-022-02628-9.
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Affiliation(s)
- Muzamil Jalil Ahmed
- Department of Chemistry, NED University of Engineering & Technology, University Road, Karachi, Sindh 75270 Pakistan
| | - Shazia Perveen
- Department of Chemistry, NED University of Engineering & Technology, University Road, Karachi, Sindh 75270 Pakistan
| | - Syed Ghazanfar Hussain
- Department of Chemistry, NED University of Engineering & Technology, University Road, Karachi, Sindh 75270 Pakistan
| | - Arsalan Ahmed Khan
- Department of Chemistry, NED University of Engineering & Technology, University Road, Karachi, Sindh 75270 Pakistan
| | - Syed Muhammad Wahaj Ejaz
- Department of Chemistry, NED University of Engineering & Technology, University Road, Karachi, Sindh 75270 Pakistan
| | - Syed Muhammad Ali Rizvi
- Department of Chemistry, NED University of Engineering & Technology, University Road, Karachi, Sindh 75270 Pakistan
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26
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Burungale VV, Bae H, Mane P, Cha AN, Ryu SW, Kang SH, Ha JS. A Ni-modified CuS-based self-supported electrocatalyst with nanobead-like porous morphology for efficient hydrogen production in basic media. NEW J CHEM 2023. [DOI: 10.1039/d2nj06114g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
The enhanced HER catalytic activity of a porous CuS-based catalyst, which was converted from Cu2O, is due to both increased surface porosity and intrinsic activity resulting from the synergy between Cu and Ni.
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Affiliation(s)
- Vishal V. Burungale
- School of Chemical Engineering, Chonnam National University, 77 Yongbongro, Buk-gu, Gwangju 61186, Korea
| | - Hyojung Bae
- Optoelectronics Convergence Research Center, Chonnam National University, 77 Yongbongro, Buk-gu, Gwangju 61186, Korea
| | - Pratik Mane
- School of Chemical Engineering, Chonnam National University, 77 Yongbongro, Buk-gu, Gwangju 61186, Korea
| | - An-Na Cha
- Energy Convergence Core Facility, Chonnam National University, 77 Yongbongro, Buk-gu, Gwangju 61186, Korea
| | - Sang-Wan Ryu
- Optoelectronics Convergence Research Center, Chonnam National University, 77 Yongbongro, Buk-gu, Gwangju 61186, Korea
| | - Soon-Hyung Kang
- Optoelectronics Convergence Research Center, Chonnam National University, 77 Yongbongro, Buk-gu, Gwangju 61186, Korea
| | - Jun-Seok Ha
- School of Chemical Engineering, Chonnam National University, 77 Yongbongro, Buk-gu, Gwangju 61186, Korea
- Optoelectronics Convergence Research Center, Chonnam National University, 77 Yongbongro, Buk-gu, Gwangju 61186, Korea
- Energy Convergence Core Facility, Chonnam National University, 77 Yongbongro, Buk-gu, Gwangju 61186, Korea
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27
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Szkoda M, Ilnicka A, Skorupska M, Wysokowski M, Lukaszewicz JP. Modification of TiO 2 nanotubes by graphene-strontium and cobalt molybdate perovskite for efficient hydrogen evolution reaction in acidic medium. Sci Rep 2022; 12:22577. [PMID: 36585427 PMCID: PMC9803638 DOI: 10.1038/s41598-022-27143-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022] Open
Abstract
Herein, we demonstrate that modification of TiO2 nanotubes with graphene-strontium and cobalt molybdate perovskite can turn them into active electrocatalysts for hydrogen evolution reaction (HER). For this purpose, a simple method of hydrothermal synthesis of perovskites was developed directly on the TiO2 nanotubes substrate. Moreover, the obtained hybrids were also decorated with graphene oxide (GO) during one-step hydrothermal synthesis. The obtained materials were characterized by scanning electron microscopy with energy dispersive X-ray analysis, Raman spectroscopy, and X-ray diffraction analysis. Catalytic properties were verified by electrochemical methods (linear voltammetry, chronopotentiometry). The obtained hybrids were characterized by much better catalytic properties towards hydrogen evolution reaction compared to TiO2 and slightly worse than platinum. The optimized hybrid catalyst (decorated by GO) can drive a cathodic current density of 10 mA cm-2 at an overpotential of 121 mV for HER with a small Tafel slope of 90 mV dec-1 in 0.2 M H2SO4.
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Affiliation(s)
- Mariusz Szkoda
- grid.6868.00000 0001 2187 838XFaculty of Chemistry, Department of Chemistry and Technology of Functional Materials, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland ,grid.6868.00000 0001 2187 838XAdvanced Materials Center, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Anna Ilnicka
- grid.5374.50000 0001 0943 6490Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland
| | - Malgorzata Skorupska
- grid.5374.50000 0001 0943 6490Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland
| | - Marcin Wysokowski
- grid.6963.a0000 0001 0729 6922Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland
| | - Jerzy P. Lukaszewicz
- grid.5374.50000 0001 0943 6490Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland ,grid.5374.50000 0001 0943 6490Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun, Wilenska 4, 87-100 Torun, Poland
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28
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Riaz A, Tahir MB, ur Rehman J, Sagir M, Yousef ES, Alrobei H, Alzaid M. Tailoring 2D carbides and nitrides based photo-catalytic nanomaterials for energy production and storage: a review. Z PHYS CHEM 2022. [DOI: 10.1515/zpch-2021-3158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Abstract
2D carbides and nitrides-based nanomaterials because of their unusual physical and chemical properties and a vast range of energy-storage applications have attracted tremendous attention. However, 2D carbides and nitrides-based nanomaterials and their corresponding composites have many intrinsic constraints in terms of energy-storage applications. The nano-engineering of these 2D materials is widely investigated, to improve their performance for practical application. In this Review article, the current progress and research on 2D carbides and nitrides-based nanostructures are presented and debated, concentrating on their methods of preparation, and energy conservation applications for example Lithium-ion-battery, supercapacitors, and Sodium-ion-battery. In conclusion, the problems, and recommendations essential to be discussed for the progress of these 2D nanomaterials for energy-storage applications based on carbides and nitrides are displayed.
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Affiliation(s)
- Asma Riaz
- Institute of Physics, Khawaja Fareed University of Engineering and Information Technology Rahim Yar Khan , Rahim Yar Khan 64200 , Pakistan
| | - Muhammad Bilal Tahir
- Institute of Physics, Khawaja Fareed University of Engineering and Information Technology Rahim Yar Khan , Rahim Yar Khan 64200 , Pakistan
- Center for Innovative Material Research , Khawaja Fareed University of Engineering and Information Technology Rahim Yar Khan , Rahim Yar Khan 64200 , Pakistan
| | - Jalil ur Rehman
- Institute of Physics, Khawaja Fareed University of Engineering and Information Technology Rahim Yar Khan , Rahim Yar Khan 64200 , Pakistan
| | - Muhammad Sagir
- Institute of Chemical Engineering, Khawaja Fareed University of Engineering and Information Technology Rahim Yar Khan , Rahim Yar Khan 64200 , Pakistan
| | - El Sayed Yousef
- Research Center for Advanced Materials Science (RCAMS) , King Khalid University , Abha 61413, P. O. Box 9004 , Saudi Arabia
- Physics Dep., Faculty of Science , King Khalid University , P. O. Box 9004 , Abha , Saudi Arabia
| | - Hussein Alrobei
- Department of Mechanical Engineering, College of Engineering , Prince Sattam Bin Abdulaziz University , Al Kharj , Saudi Arabia
| | - Meshal Alzaid
- Physics Department, College of Science , Jouf University , P.O. Box: 2014 , Sakaka , Saudi Arabia
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Khaledi-koureh B, Kafi-Ahmadi L, Khademinia S, Marjani AP. Synthesis, physical and electrochemical properties of Bi-V-O mixed metal oxide nanocomposites for catalytic fabrication of 2-amino-4H-benzochromenes under heat, ultrasonic, and microwave illuminations. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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30
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Karuppasamy K, Nichelson A, Vikraman D, Choi JH, Hussain S, Ambika C, Bose R, Alfantazi A, Kim HS. Recent Advancements in Two-Dimensional Layered Molybdenum and Tungsten Carbide-Based Materials for Efficient Hydrogen Evolution Reactions. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3884. [PMID: 36364659 PMCID: PMC9656633 DOI: 10.3390/nano12213884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/29/2022] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
Green and renewable energy is the key to overcoming energy-related challenges such as fossil-fuel depletion and the worsening of environmental habituation. Among the different clean energy sources, hydrogen is considered the most impactful energy carrier and is touted as an alternate fuel for clean energy needs. Even though noble metal catalysts such as Pt, Pd, and Au exhibit excellent hydrogen evolution reaction (HER) activity in acid media, their earth abundance and capital costs are highly debatable. Hence, developing cost-effective, earth-abundant, and conductive electrocatalysts is crucial. In particular, various two-dimensional (2D) transition metal carbides and their compounds are gradually emerging as potential alternatives to noble metal-based catalysts. Owing to their improved hydrophilicity, good conductivity, and large surface areas, these 2D materials show superior stability and excellent catalytic performances during the HER process. This review article is a compilation of the different synthetic protocols, their impact, effects of doping on molybdenum and tungsten carbides and their derivatives, and their application in the HER process. The paper is more focused on the detailed strategies for improving the HER activity, highlights the limits of molybdenum and tungsten carbide-based electrocatalysts in electro-catalytic process, and elaborates on the future advancements expected in this field.
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Affiliation(s)
- K. Karuppasamy
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Korea
| | - A. Nichelson
- Department of Physics, National Engineering College, K.R. Nagar, Kovilpatti, Tuticorin 628503, Tamil Nadu, India
| | - Dhanasekaran Vikraman
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Korea
| | - Jun-Hyeok Choi
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Korea
| | - Sajjad Hussain
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Korea
| | - C. Ambika
- Department of Physics, Ayya Nadar Janaki Ammal College, Sivakasi 626123, Tamil Nadu, India
| | - Ranjith Bose
- Department of Chemical Engineering, Khalifa University, Abu Dhabi 127788, United Arab Emirates
- Emirates Nuclear Technology Center (ENTC), Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Akram Alfantazi
- Department of Chemical Engineering, Khalifa University, Abu Dhabi 127788, United Arab Emirates
- Emirates Nuclear Technology Center (ENTC), Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Korea
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31
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Zhang X, Alvarado-Ávila MI, Liu Y, Yu D, Ye F, Dutta J. Self-sacrificial growth of hierarchical P(Ni, Co, Fe) for enhanced asymmetric supercapacitors and oxygen evolution reactions. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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32
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Controllable synthesis of urea-assisted Co3O4 nanostructures as an effective catalyst for urea electrooxidation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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33
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Manojkumar K, Kandeeban R, Brindha R, Sangeetha V, Saminathan K. Non-precious metal-based integrated electrodes for overall alkaline water splitting. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Zhou M, Wang H, Zhang L, Li C, Kumbhar A, Abruña HD, Fang J. Facet Impact of CuMn 2O 4 Spinel Nanocatalysts on Enhancement of the Oxygen Reduction Reaction in Alkaline Media. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ming Zhou
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York13902, United States
| | - Hongsen Wang
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York14853, United States
| | - Lihua Zhang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York11973, United States
| | - Can Li
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York13902, United States
| | - Amar Kumbhar
- Chapel Hill Analytical and Nanofabrication Laboratory, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina27599, United States
| | - Héctor D. Abruña
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York14853, United States
| | - Jiye Fang
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York13902, United States
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35
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Alvarado-Ávila M, Toledo-Carrillo E, Dutta J. Cerium Oxide on a Fluorinated Carbon-Based Electrode as a Promising Catalyst for Hypochlorite Production. ACS OMEGA 2022; 7:37465-37475. [PMID: 36312353 PMCID: PMC9608405 DOI: 10.1021/acsomega.2c04248] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Sodium hypochlorite (NaOCl) is widely used as a disinfectant agent for water treatment and surface cleaning. A straightforward way to produce NaOCl is by the electrolysis of an aqueous sodium chloride (NaCl) solution. This process presents several side reactions decreasing its efficiency with hypochlorite reduction on the cathode surface being one of the main detrimental reactions. In this work, we have studied carbon-based electrodes modified with cerium oxide (CeO2), fluorine, and platinum nanoparticles as cathodes for hypochlorite production. Fluorination was carried out electrochemically; the polyol method was used to synthesize platinum nanoparticles; and the hydrothermal process was applied to form a CeO2 layer. Scanning electron microscopy, FTIR, and inductively coupled plasma (ICP) indicated the presence of cerium oxide as a film, fluorine groups on the substrate, and a load of 3.2 mg/cm2 of platinum nanoparticles and 2.7 mg/cm2 of CeO2. From electrochemical impedance spectroscopy, it was possible to demonstrate that incorporating platinum and fluorine decreases the charge transfer resistance by 16% and 28%, respectively. Linear sweep voltammetry showed a significant decrease in hypochlorite reduction when the substrate was doped with fluorine from -16.6 mA/cm2 at -0.6 V to -9.64 mA/cm2 that further reduced to -8.78 mA/cm2 with cerium oxide covered fluorinated electrodes. The performance of the cathode materials during hypochlorite production improved by 80% compared with pristine activated carbon cloth (ACC) electrodes. The improvement toward hindering NaOCl reduction is probably caused by the incorporation of a partial negative charge upon doping with fluorine.
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Nallayagari AR, Sgreccia E, Pasquini L, Sette M, Knauth P, Di Vona ML. Impact of Anion Exchange Ionomers on the Electrocatalytic Performance for the Oxygen Reduction Reaction of B-N Co-doped Carbon Quantum Dots on Activated Carbon. ACS APPLIED MATERIALS & INTERFACES 2022; 14:46537-46547. [PMID: 36194150 DOI: 10.1021/acsami.2c11802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Composite electrocatalytic electrodes made from B-N co-doped carbon quantum dots (CQD) and various anion exchange ionomers (AEI) are studied for the oxygen reduction reaction (ORR) in alkaline solutions. The quantity and positions of dopants in CQD, prepared by hydrothermal synthesis, are analyzed by various spectroscopies, including 11B NMR spectroscopy that evidenced boronic acid at edge sites. The AEI are synthesized with various backbones, including more hydrophilic polysulfone, hydrophobic poly(alkylene biphenyl), and poly(2,6-dimethyl-1,4-phenylene oxide) with intermediate hydrophilicity; the functional groups are trimethylammonium moieties grafted on long (LC) or short (SC) side chains. The CQD/AEI ink is drop-casted on activated carbon paper, and the samples are fixed on a rotating disk electrode and studied in three-electrode configuration in oxygen-saturated 0.1 M KOH. The onset potentials are among the best in the literature (Eonset ≈ 0.94 V vs RHE). The highest electrocatalytic activity is observed for electrodes containing AEI with long side chains; the sample containing PPO LC attains excellent ORR currents approaching that of benchmark Pt/C cloth. The electrocatalytic performances are discussed in view of the many relevant AEI parameters, including hydrophilicity, oxygen permeability, catalyst dispersivity, and ionic conductivity.
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Affiliation(s)
- Ashwini Reddy Nallayagari
- Dep. Industrial Engineering and International Laboratory: Ionomer Materials for Energy, University of Rome Tor Vergata, 00133Roma, Italy
- MADIREL (UMR 7246) and International Laboratory: Ionomer Materials for Energy, Aix Marseille Univ, CNRS, Campus St Jérôme, 13013Marseille, France
| | - Emanuela Sgreccia
- Dep. Industrial Engineering and International Laboratory: Ionomer Materials for Energy, University of Rome Tor Vergata, 00133Roma, Italy
| | - Luca Pasquini
- MADIREL (UMR 7246) and International Laboratory: Ionomer Materials for Energy, Aix Marseille Univ, CNRS, Campus St Jérôme, 13013Marseille, France
| | - Marco Sette
- Dep. Chemical Sciences and Technologies, University of Rome Tor Vergata, via della Ricerca Scientifica, 00133Roma, Italy
| | - Philippe Knauth
- MADIREL (UMR 7246) and International Laboratory: Ionomer Materials for Energy, Aix Marseille Univ, CNRS, Campus St Jérôme, 13013Marseille, France
| | - Maria Luisa Di Vona
- Dep. Industrial Engineering and International Laboratory: Ionomer Materials for Energy, University of Rome Tor Vergata, 00133Roma, Italy
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Messaoudi Y, Belhadj H, Khelladi MR, Azizi A. Rational design of NiFe alloys for efficient electrochemical hydrogen evolution reaction: effects of Ni/Fe molar ratios. RSC Adv 2022; 12:29143-29150. [PMID: 36320734 PMCID: PMC9554736 DOI: 10.1039/d2ra05922c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 10/07/2022] [Indexed: 11/07/2022] Open
Abstract
Developing and designing high-performance and stable NiFe electrodes for efficient hydrogen production are the greatest challenges in electrochemical water splitting. In this work, NiFe alloys with different Ni and Fe contents are prepared by a simple electrodeposition method using different molar ratios of Ni/Fe precursors (Ni/Fe; 1 : 3, 1 : 1 and 3 : 1). The obtained NiFe electrode with a molar ratio of 3 : 1 exhibited better electrocatalytic activity for the HER than the other NiFe electrodes with 1 : 3 and 1 : 1 molar ratios. The NiFe (Ni/Fe, 3 : 1) electrode required an overpotential of 133 mV to reach a current density of 10 mA cm−2, which was much lower than those of NiFe with molar ratio of 1 : 3 (220 mV), and 1 : 1 (365 mV), respectively. Tafel slope analyses demonstrated that the HER mechanism of NiFe alloy coatings followed the Volmer reaction type. The superior electrocatalytic performance of the NiFe alloy for HER depending on precursor molar ratio of Ni/Fe was attributed to their composition in terms of Ni and Fe content, structure and surface morphology. Specifically, the electrodeposition of the NiFe alloy was obtained in a molar ratio Ni/Fe, 3 : 1, and induced the formation of NiFe layered double hydroxide (LDH) with a nanosheet-array structure. The high electrocatalytic activity of NiFe LDH (Ni/Fe, 3 : 1) confirmed the critical influence of Ni and Fe contents in the alloy resulting in an increase the active surface on the surfaces, which is most likely explained by the higher surface roughness and the low crystallinity structure of NiFe nanosheet-array, supported by ECSA measurement, XRD, SEM and AFM analyses. The present strategy may open an avenue for developing cost-effective, stable and high-performance electrocatalysts as advanced electrodes for large-scale water splitting. Developing and designing high-performance and stable NiFe electrodes for efficient hydrogen production in alkaline medium.![]()
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Affiliation(s)
- Yazid Messaoudi
- Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures, Université Ferhat Abbas Sétif 1Sétif 19000Algeria
| | - Hamza Belhadj
- Unit of Research in Nanosciences and Nanotechnologies (URNN), Center for Development of Advanced Technologies (CDTA), Université Ferhat Abbas Sétif 1Sétif 19000Algeria
| | - Mohamed R. Khelladi
- Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures, Université Ferhat Abbas Sétif 1Sétif 19000Algeria
| | - Amor Azizi
- Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures, Université Ferhat Abbas Sétif 1Sétif 19000Algeria
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Binder-Free Fabrication of Prussian Blue Analogues Based Electrocatalyst for Enhanced Electrocatalytic Water Oxidation. Molecules 2022; 27:molecules27196396. [PMID: 36234933 PMCID: PMC9571080 DOI: 10.3390/molecules27196396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/13/2022] [Accepted: 09/21/2022] [Indexed: 11/16/2022] Open
Abstract
Developing a cost-effective, efficient, and stable oxygen evolution reaction (OER) catalyst is of great importance for sustainable energy conversion and storage. In this study, we report a facile one-step fabrication of cationic surfactant-assisted Prussian blue analogues (PBAs) Mx[Fe(CN)5CH3C6H4NH2]∙yC19H34NBr abbreviated as SF[Fe-Tol-M] (where SF = N-tridecyl-3-methylpyridinium bromide and M = Mn, Co and Ni) as efficient heterogeneous OER electrocatalysts. The electrocatalysts have been characterized by Fourier transform infrared (FT-IR) spectroscopy, powder X-ray diffraction (PXRD), scanning electron microscopy (SEM) coupled with energy dispersive X-ray (EDX) analysis, and X-ray photoelectron spectroscopy (XPS). In the presence of cationic surfactant (SF), PBAs-based electrodes showed enhanced redox current, high surface area and robust stability compared to the recently reported PBAs. SF[Fe-Tol-Co] hybrid catalyst shows superior electrochemical OER activity with a much lower over-potential (610 mV) to attain the current density of 10 mA cm−2 with the Tafel slope value of 103 mV·dec−1 than that for SF[Fe-Tol-Ni] and SF[Fe-Tol-Mn]. Moreover, the electrochemical impedance spectroscopy (EIS) unveiled that SF[Fe-Tol-Co] exhibits smaller charge transfer resistance, which results in a faster kinetics towards OER. Furthermore, SF[Fe-Tol-Co] offered excellent stability for continues oxygen production over extended reaction time. This work provides a surface assisted facile electrode fabrication approach for developing binder-free OER electrocatalysts for efficient water oxidation.
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Zhang H, Xiong T, Zhou T, Zhang X, Wang Y, Zhou X, Wei L. Advanced Fiber-Shaped Aqueous Zn Ion Battery Integrated with Strain Sensor. ACS APPLIED MATERIALS & INTERFACES 2022; 14:41045-41052. [PMID: 36047718 DOI: 10.1021/acsami.2c11638] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Multifunctional batteries have attracted increasing attention, offering additional functionalities beyond the conventional batteries. Herein, we report a fiber-shaped Zn ion battery that not only acts as a high-performance power supply but also provides a sensing function to monitor human motions. Titanium fiber coated with α-MnO2 nanoflowers is exploited as the cathode for the fiber-shaped Zn ion battery, taking full advantage of such unique three-dimensional nanoflower structures of α-MnO2 with a large electrochemically active surface area and fast electrochemical reaction kinetics. Thus, the obtained fiber-shaped Zn ion battery shows a high capacity of 280 mAh g-1 at 0.1 A g-1, resulting in a notable energy density of 396 Wh kg-1, good stability (capacity retention of 80.6% after 300 cycles), and high flexibility. As a demonstration, an electronic watch and five LEDs are successfully driven by two fiber-shaped Zn ion batteries. Furthermore, the fiber-shaped Zn ion battery is integrated with a strain sensor based on a carbon nanotube/polydimethylsiloxane film, offering good sensitivity to monitor motions of different body parts, such as the wrist, finger, elbow, and knee. This work provides insights into multifunctional battery applications for next-generation wearable electronics.
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Affiliation(s)
- Haozhe Zhang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore
| | - Ting Xiong
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore
| | - Tianzhu Zhou
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore
| | - Xiao Zhang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore
| | - Yuntian Wang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore
| | - Xuhui Zhou
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore
| | - Lei Wei
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore
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40
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Hakimyfard A, Samimifar M, Ostadjoola S, Khademinia S, Kafi‐Ahmadi L. L
x
‐β‐NiMoO
4
(L = None, Al, V, Fe, Co) Nanocomposites: Facile Solid‐State Synthesis, Magnetic, Optical, and Electrochemical Properties. CRYSTAL RESEARCH AND TECHNOLOGY 2022. [DOI: 10.1002/crat.202200044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alireza Hakimyfard
- Department of Physics, Faculty of Science Jundi‐Shapur University of Technology Dezful 64617‐96736 Iran
| | - Mohammad Samimifar
- Department of Chemistry, Faculty of Science Jundi‐Shapur University of Technology Dezful 64617‐96736 Iran
| | - Soroor Ostadjoola
- Department of Physics, Faculty of Science Jundi‐Shapur University of Technology Dezful 64617‐96736 Iran
| | - Shahin Khademinia
- Department of Inorganic Chemistry, Faculty of Chemistry Semnan University Semnan 35131‐ 19111 Iran
| | - Leila Kafi‐Ahmadi
- Department of Inorganic Chemistry, Faculty of Chemistry Urmia University Urmia 57561‐51818 Iran
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41
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Shaheen Shah S, Abdul Aziz M, Al-Betar AR, Mahfoz W. Electrodeposition of polyaniline on high electroactive indium tin oxide nanoparticles-modified fluorine doped tin oxide electrode for fabrication of high-performance hybrid supercapacitor. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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42
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One-step synthesis of the hydrophobic conical Co-Fe structures-the comparison of their active areas and electrocatalytic properties. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140127] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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43
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Wang B, Ai Y, Yao Y, Jiang M, Yan L, Xu S, Sun W. Electrochemical synergy between FeNi nanoalloy@tungsten carbide on N-doped graphitized carbon layers as an excellent electrocatalyst for oxygen evolution reaction. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140254] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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44
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Koh SW, Hu J, Chun H, Yu P, Ge J, Sun Z, Hong W, Liu Q, Nam K, Han B, Liu Z, Li H. Two-Dimensional Palladium Phosphoronitride for Oxygen Reduction. ACS APPLIED MATERIALS & INTERFACES 2022; 14:12156-12167. [PMID: 35255212 DOI: 10.1021/acsami.1c21419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Two-dimensional (2D) catalysts often show extraordinary activity at low mass loading since almost all their atoms are exposed to electrolyte. Palladium (Pd) holds great promise for catalyzing oxygen reduction reaction (ORR) but 2D Pd-based ORR catalyst has rarely been reported. Herein, 2D ternary palladium phosphoronitride (Pd3P2Nx) is synthesized, for the first time, for ORR catalysis. The synthesis is guided by a rational design using first-principles density functional theory calculations, and then realized via a postsynthesis substitutional doping of ternary palladium thiophosphate (Pd3P2S8), which almost completely replaces sulfur atoms by nitrogen atoms without destroying the 2D morphology. The doping process exposes the interlocked Pd atoms of Pd3P2S8 and introduces ligands that improve the affinity of oxygen intermediates, resulting in greater kinetics and lower activation energy for ORR. The mass activity of the pristine Pd3P2S8 is dramatically increased as much as 5-fold (from 0.03 to 0.151 mA μg-1 Pd in Pd3P2Nx). The ORR diffusion-limited current density of Pd3P2Nx (6.2 mA cm-2) exceeds that of commercial Pt/C, and it shows fast kinetics and robust long-term stability. Our theoretical calculations not only guide the experimental doping process, but also provides insights into the underlying mechanism of the outstanding ORR activity and stability.
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Affiliation(s)
- See Wee Koh
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore
| | - Jie Hu
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, P. R. China
| | - Hoje Chun
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Peng Yu
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Junyu Ge
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore
| | - Zixu Sun
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore
| | - Wei Hong
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore
| | - Qiunan Liu
- Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, P. R. China
| | - Kyungju Nam
- Institute of Fundamental and Advanced Technology, R&D Division, Hyundai Motor Company, Uiwang 16082, Republic of Korea
- Department of Vehicle Convergence Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Byungchan Han
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
- Department of Vehicle Convergence Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Zheng Liu
- School of Material Sciences and Engineering, Nanyang Technological University, 639798, Singapore
| | - Hong Li
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore
- CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 637553, Singapore
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Kundu A, Adak MK, Kumar Y, Chakraborty B. Electrochemically Derived Crystalline CuO from Covellite CuS Nanoplates: A Multifunctional Anode Material. Inorg Chem 2022; 61:4995-5009. [PMID: 35293211 DOI: 10.1021/acs.inorgchem.1c03830] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the present era, electrochemical water splitting has been showcased as a reliable solution for alternative and sustainable energy development. The development of a cheap, albeit active, catalyst to split water at a substantial overpotential with long durability is a perdurable challenge. Moreover, understanding the nature of surface-active species under electrochemical conditions remains fundamentally important. A facile hydrothermal approach is herein adapted to prepare covellite (hexagonal) phase CuS nanoplates. In the covellite CuS lattice, copper is present in a mixed-valent state, supported by two different binding energy values (932.10 eV for CuI and 933.65 eV for CuII) found in X-ray photoelectron spectroscopy analysis, and adopted two different geometries, that is, trigonal planar preferably for CuI and tetrahedral preferably for CuII. The as-synthesized covellite CuS behaves as an efficient electro(pre)catalyst for alkaline water oxidation while deposited on a glassy carbon and nickel foam (NF) electrodes. Under cyclic voltammetry cycles, covellite CuS electrochemically and irreversibly oxidized to CuO, indicated by a redox feature at 1.2 V (vs the reversible hydrogen electrode) and an ex situ Raman study. Electrochemically activated covellite CuS to the CuO phase (termed as CuSEA) behaves as a pure copper-based catalyst showing an overpotential (η) of only 349 (±5) mV at a current density of 20 mA cm-2, and the TOF value obtained at η349 (at 349 mV) is 1.1 × 10-3 s-1. A low Rct of 5.90 Ω and a moderate Tafel slope of 82 mV dec-1 confirm the fair activity of the CuSEA catalyst compared to the CuS precatalyst, reference CuO, and other reported copper catalysts. Notably, the CuSEA/NF anode can deliver a constant current of ca. 15 mA cm-2 over a period of 10 h and even a high current density of 100 mA cm-2 for 1 h. Post-oxygen evolution reaction (OER)-chronoamperometric characterization of the anode via several spectroscopic and microscopic tools firmly establishes the formation of crystalline CuO as the active material along with some amorphous Cu(OH)2 via bulk reconstruction of the covellite CuS under electrochemical conditions. Given the promising OER activity, the CuSEA/NF anode can be fabricated as a water electrolyzer, Pt(-)//(+)CuSEA/NF, that delivers a j of 10 mA cm-2 at a cell potential of 1.58 V. The same electrolyzer can further be used for electrochemical transformation of organic feedstocks like ethanol, furfural, and 5-hydroxymethylfurfural to their respective acids. The present study showcases that a highly active CuO/Cu(OH)2 heterostructure can be constructed in situ on NF from the covellite CuS nanoplate, which is not only a superior pure copper-based electrocatalyst active for OER and overall water splitting but also for the electro-oxidation of industrial feedstocks.
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Affiliation(s)
- Avinava Kundu
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Mrinal Kanti Adak
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Yogesh Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Biswarup Chakraborty
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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Mobini S, González MU, Caballero-Calero O, Patrick EE, Martín-González M, García-Martín JM. Effects of nanostructuration on the electrochemical performance of metallic bioelectrodes. NANOSCALE 2022; 14:3179-3190. [PMID: 35142756 DOI: 10.1039/d1nr06280h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The use of metallic nanostructures in the fabrication of bioelectrodes (e.g., neural implants) is gaining attention nowadays. Nanostructures provide increased surface area that might benefit the performance of bioelectrodes. However, there is a need for comprehensive studies that assess electrochemical performance of nanostructured surfaces in physiological and relevant working conditions. Here, we introduce a versatile scalable fabrication method based on magnetron sputtering to develop analogous metallic nanocolumnar structures (NCs) and thin films (TFs) from Ti, Au, and Pt. We show that NCs contribute significantly to reduce the impedance of metallic surfaces. Charge storage capacity of Pt NCs is remarkably higher than that of Pt TFs and that of the other metals in both morphologies. Circuit simulations of the electrode/electrolyte interface show that the signal delivered in voltage-controlled systems is less filtered when nanocolumns are used. In a current-controlled system, simulation shows that NCs provide safer stimulation conditions compared to TFs. We have assessed the durability of NCs and TFs for potential use in vivo by reactive accelerated aging test, mimicking one-year in vivo implantation. Although each metal/morphology reveals a unique response to aging, NCs show overall more stable electrochemical properties compared to TFs in spite of their porous structure.
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Affiliation(s)
- Sahba Mobini
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8, E-28760, Tres Cantos, Madrid, Spain.
| | - María Ujué González
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8, E-28760, Tres Cantos, Madrid, Spain.
| | - Olga Caballero-Calero
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8, E-28760, Tres Cantos, Madrid, Spain.
| | - Erin E Patrick
- Department of Electrical and Computer Engineering, University of Florida, Center Drive 968, Gainesville, FL 32603, USA
| | - Marisol Martín-González
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8, E-28760, Tres Cantos, Madrid, Spain.
| | - José Miguel García-Martín
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8, E-28760, Tres Cantos, Madrid, Spain.
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Effect of synthesis route on electrocatalytic water-splitting activity of MoS2/UiO-66 hybrid. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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48
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Morphology engineering of iridium electrodes via modifying titanium substrates with controllable pillar structures for highly efficient oxygen evolution reaction. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139797] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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49
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Direct synthesis of manganese oxide electrocatalysts on carbon nanotubes in supercritical carbon dioxide. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2021.105467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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50
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Mourdikoudis S, Antonaropoulos G, Antonatos N, Rosado M, Storozhuk L, Takahashi M, Maenosono S, Luxa J, Sofer Z, Ballesteros B, Thanh NTK, Lappas A. Heat-Up Colloidal Synthesis of Shape-Controlled Cu-Se-S Nanostructures-Role of Precursor and Surfactant Reactivity and Performance in N 2 Electroreduction. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3369. [PMID: 34947718 PMCID: PMC8707546 DOI: 10.3390/nano11123369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 12/01/2021] [Accepted: 12/09/2021] [Indexed: 11/16/2022]
Abstract
Copper selenide-sulfide nanostructures were synthesized using metal-organic chemical routes in the presence of Cu- and Se-precursors as well as S-containing compounds. Our goal was first to examine if the initial Cu/Se 1:1 molar proportion in the starting reagents would always lead to equiatomic composition in the final product, depending on other synthesis parameters which affect the reagents reactivity. Such reaction conditions were the types of precursors, surfactants and other reagents, as well as the synthesis temperature. The use of 'hot-injection' processes was avoided, focusing on 'non-injection' ones; that is, only heat-up protocols were employed, which have the advantage of simple operation and scalability. All reagents were mixed at room temperature followed by further heating to a selected high temperature. It was found that for samples with particles of bigger size and anisotropic shape the CuSe composition was favored, whereas particles with smaller size and spherical shape possessed a Cu2-xSe phase, especially when no sulfur was present. Apart from elemental Se, Al2Se3 was used as an efficient selenium source for the first time for the acquisition of copper selenide nanostructures. The use of dodecanethiol in the presence of trioctylphosphine and elemental Se promoted the incorporation of sulfur in the materials crystal lattice, leading to Cu-Se-S compositions. A variety of techniques were used to characterize the formed nanomaterials such as XRD, TEM, HRTEM, STEM-EDX, AFM and UV-Vis-NIR. Promising results, especially for thin anisotropic nanoplates for use as electrocatalysts in nitrogen reduction reaction (NRR), were obtained.
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Affiliation(s)
- Stefanos Mourdikoudis
- Biophysics Group, Department of Physics and Astronomy, University College London, London WC1E 6BT, UK;
- UCL Healthcare Biomagnetics and Nanomaterials Laboratories, 21 Albemarle Street, London W1S 4BS, UK
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 Prague, Czech Republic; (N.A.); (J.L.)
| | - George Antonaropoulos
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, Vassilika Vouton, 71110 Heraklion, Greece;
- Department of Chemistry, University of Crete, Voutes, 71003 Heraklion, Greece
| | - Nikolas Antonatos
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 Prague, Czech Republic; (N.A.); (J.L.)
| | - Marcos Rosado
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and the Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain;
| | - Liudmyla Storozhuk
- Biophysics Group, Department of Physics and Astronomy, University College London, London WC1E 6BT, UK;
- UCL Healthcare Biomagnetics and Nanomaterials Laboratories, 21 Albemarle Street, London W1S 4BS, UK
| | - Mari Takahashi
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi 923-1292, Ishikawa, Japan; (M.T.); (S.M.)
| | - Shinya Maenosono
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi 923-1292, Ishikawa, Japan; (M.T.); (S.M.)
| | - Jan Luxa
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 Prague, Czech Republic; (N.A.); (J.L.)
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 Prague, Czech Republic; (N.A.); (J.L.)
| | - Belén Ballesteros
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and the Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain;
| | - Nguyen Thi Kim Thanh
- Biophysics Group, Department of Physics and Astronomy, University College London, London WC1E 6BT, UK;
- UCL Healthcare Biomagnetics and Nanomaterials Laboratories, 21 Albemarle Street, London W1S 4BS, UK
| | - Alexandros Lappas
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, Vassilika Vouton, 71110 Heraklion, Greece;
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