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Moschkowitsch W, Samanta B, Zion N, Honig HC, Cullen DA, Caspary Toroker M, Elbaz L. NiFe-mixed metal porphyrin aerogels as oxygen evolution reaction catalysts in alkaline electrolysers. NANOSCALE 2022; 14:18033-18040. [PMID: 36445268 DOI: 10.1039/d2nr05675e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Aerogels are a very interesting group of materials owing to their unique physical and chemical properties. In the context of electrocatalysis, the focus has been on their physical properties, and they have been used primarily as catalyst supports so far. In this work, we synthesized porphyrin aerogels containing Ni and NiFe mixed metal materials and studied them as catalysts for the oxygen evolution reaction (OER). Different Ni : Fe ratios were synthesized and studied in electrochemical cells, and DFT calculations were conducted in order to gain insight into their behavior. The activity trends were dependent on the metal ratios and differ from known NiFeOOH materials due to the change in the oxidation states of the metals to higher numbers. Herein, we show that Ni and Fe have a synergistic effect on the OER, despite being structurally separated. They are connected electronically, though, through a large organic aromatic system that facilitates electron sharing between them. Among the mixed metal porphyrin aerogels, the best ratio was found to be Ni : Fe = 35 : 65, in contrast to oxide/oxyhydroxide materials in which a ratio of 80 : 20 was found to be ideal.
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Affiliation(s)
- Wenjamin Moschkowitsch
- Chemistry Department, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel.
| | - Bipasa Samanta
- Department of Materials Science and Engineering and The Nancy and Stephen Grand Technion Energy Program, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Noam Zion
- Chemistry Department, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel.
| | - Hilah C Honig
- Chemistry Department, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel.
| | - David A Cullen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Maytal Caspary Toroker
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel.
| | - Lior Elbaz
- Chemistry Department, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel.
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Moschkowitsch W, Zion N, Honig HC, Levy N, Cullen DA, Elbaz L. Mixed-Metal Nickel–Iron Oxide Aerogels for Oxygen Evolution Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03351] [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)
- Wenjamin Moschkowitsch
- Chemistry Department, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Noam Zion
- Chemistry Department, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Hilah C. Honig
- Chemistry Department, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Naomi Levy
- Chemistry Department, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - David A. Cullen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Lior Elbaz
- Chemistry Department, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
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Moschkowitsch W, Lori O, Elbaz L. Recent Progress and Viability of PGM-Free Catalysts for Hydrogen Evolution Reaction and Hydrogen Oxidation Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.1c04948] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Wenjamin Moschkowitsch
- Chemistry Department, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Oran Lori
- Chemistry Department, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Lior Elbaz
- Chemistry Department, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
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Samantara AK, Das JK, Ratha S, Jena NK, Chakraborty B, Behera JN. Enhanced Oxygen Evolution Reaction with a Ternary Hybrid of Patronite-Carbon Nanotube-Reduced Graphene Oxide: A Synergy between Experiments and Theory. ACS APPLIED MATERIALS & INTERFACES 2021; 13:35828-35836. [PMID: 34301146 DOI: 10.1021/acsami.1c09927] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This work reports the hybridization of patronite (VS4) sheets with reduced graphene oxide and functionalized carbon nanotubes (RGO/FCNT/VS4) through a hydrothermal method. The synergistic effect divulged by the individual components, i.e., RGO, FCNT, and VS4, significantly improves the efficiency of the ternary (RGO/FCNT/VS4) hybrid toward the oxygen evolution reaction (OER). The ternary composite exhibits an impressive electrocatalytic OER performance in 1 M KOH and requires only 230 mV overpotential to reach the state-of-the-art current density (10 mA cm-2). Additionally, the hybrid shows an appreciable Tafel slope with a higher Faradaic efficiency (97.55 ± 2.3%) at an overpotential of 230 mV. Further, these experimental findings are corroborated by the state-of-the-art density functional theory by presenting adsorption configurations, the density of states, and the overpotential of these hybrid structures. Interestingly, the theoretical overpotential follows the qualitative trend RGO/FCNT/VS4 < FCNT/VS4 < RGO/VS4, supporting the experimental findings.
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Affiliation(s)
- Aneeya K Samantara
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), P.O. Jatni, Khurda, Odisha 752050, India
- Homi Bhabha National Institute, Mumbai 400094, India
| | - Jiban K Das
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), P.O. Jatni, Khurda, Odisha 752050, India
- Homi Bhabha National Institute, Mumbai 400094, India
| | - Satyajit Ratha
- School of Basic Science, Indian Institute of Technology Bhubaneswar, Arugul, Jatni, Odisha 752050, India
| | - Naresh K Jena
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, Uppsala SE-75120, Sweden
| | - Brahmananda Chakraborty
- Homi Bhabha National Institute, Mumbai 400094, India
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - J N Behera
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), P.O. Jatni, Khurda, Odisha 752050, India
- Homi Bhabha National Institute, Mumbai 400094, India
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Guan Y, Lai J, Xu G. Recent Advances on Electrocatalysis Using Pristinely Conductive Metal‐Organic Frameworks and Covalent Organic Frameworks. ChemElectroChem 2021. [DOI: 10.1002/celc.202100492] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Yiran Guan
- State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street Changchun 130022 Jilin P. R. China
- University of Science and Technology of China Hefei 230026 Anhui P. R. China
| | - Jianping Lai
- Key Laboratory of Eco-chemical Engineering Key Laboratory of Optic-electric Sensing and Analytical Chemistry of Life Science Taishan scholar advantage and characteristic discipline team of Eco-chemical process and technology College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 P. R. China
| | - Guobao Xu
- State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street Changchun 130022 Jilin P. R. China
- University of Science and Technology of China Hefei 230026 Anhui P. R. China
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