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Chen G, Yuan B, Dang J, Xia L, Zhang C, Wang Q, Miao H, Yuan J. Recycling the Spent LiNi 1- x - yMn xCo yO 2 Cathodes for High-Performance Electrocatalysts toward Both the Oxygen Catalytic and Methanol Oxidation Reactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306967. [PMID: 37992250 DOI: 10.1002/smll.202306967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/25/2023] [Indexed: 11/24/2023]
Abstract
The traditional recycling methods of the spent lithium ion batteries (LIBs) involve the intricate and cumbersome steps. This work proposes a facile method of acid leaching followed by the sulfurization treatment to achieve the high Li leaching efficiency, and obtain high-performance multi-function electrocatalysts for oxygen reduction (ORR), oxygen evolution (OER), and methanol oxidation reactions (MOR) from the spent LIB ternary cathodes. By this method, the Li leaching efficiency from the spent LIB ternary cathode can reach 98.3%, and the transition metal sulfide heterostructures (LNMCO-H-450S) consisting MnS, NiS2, and NiCo2S4 phases can be obtained. LNMCO-H-450S shows the superior bifunctional oxygen catalytic activities with ORR half-wave potential of 0.763 V and OER potential at 10 mA cm-2 of 1.561 V, surpassing most of the state-of-the-art electrocatalysts. LNMCO-H-450S also demonstrates the superior MOR catalytic activity with the potential at 100 mA cm-2 being 1.37 V. Using LNMCO-H-450S as the oxygen catalyst, this work can construct the aqueous and solid-state zinc-air batteries with high power density of 309 and 257 mW cm-2, respectively. This work provides a promising strategy for the efficient recovery of Li, and reutilization of Ni, Co, and Mn from the spent LIB ternary cathodes.
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Affiliation(s)
- Genman Chen
- Faculty of Maritime and Transportation, Ningbo University, Ningbo, 315211, P. R. China
| | - Bingen Yuan
- Faculty of Maritime and Transportation, Ningbo University, Ningbo, 315211, P. R. China
| | - Jiaxin Dang
- Faculty of Maritime and Transportation, Ningbo University, Ningbo, 315211, P. R. China
| | - Lan Xia
- Faculty of Maritime and Transportation, Ningbo University, Ningbo, 315211, P. R. China
| | - Chunfei Zhang
- Faculty of Maritime and Transportation, Ningbo University, Ningbo, 315211, P. R. China
| | - Qin Wang
- Department of Microelectronic Science and Engineering, Faculty of Science, Ningbo University, Ningbo, 315211, P. R. China
| | - He Miao
- Faculty of Maritime and Transportation, Ningbo University, Ningbo, 315211, P. R. China
| | - Jinliang Yuan
- Faculty of Maritime and Transportation, Ningbo University, Ningbo, 315211, P. R. China
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2
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Paranamana NC, Young MJ. Role of Surface Chemistry in Pyrrole Autoxidation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6432-6444. [PMID: 38478721 DOI: 10.1021/acs.langmuir.3c04036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Chemical compounds in liquid hydrocarbon fuels that contain five-membered pyrrole (Py) rings readily react with oxygen from air and polymerize through a process known as autoxidation. Autoxidation degrades the quality of fuel and leads to the formation of unwanted gum deposits in fuel storage vessels and engine components. Recent work has found that the rate of formation of these gum deposits is affected by material surfaces exposed to the fuel, but the origins of these effects are not yet understood. In this work, atomic layer deposition (ALD) is employed to grow aluminum oxide, zinc oxide, titanium dioxide, and manganese oxide films on silicon substrates to control material surface chemistry and study Py adsorption and gum nucleation on these surfaces. Quartz crystal microbalance (QCM) studies of gas-phase Py adsorption indicate 1.5-2.8 kcal/mol exergonic adsorption of Lewis basic Py onto Lewis acidic surface sites. More favorable Py adsorption onto Lewis acidic surfaces correlates with faster polypyrrole (PPy) film nucleation in vapor phase oxidative molecular deposition (oMLD) polymerization studies. Liquid-phase studies of Py autoxidation reveal primarily particulate formation, indicating a homogeneous PPy propagation step rather than a completely surface-based polymerization mechanism. The amount of PPy particulate formation is positively correlated with more acidic surfaces (lower pH-PZC values), indicating that the rate-limiting step for Py autoxidation involves Lewis acidic surface sites. These studies help to establish new mechanistic insights into the role of surface chemistry in the autoxidation of pyrrolic species. We apply this knowledge to demonstrate a polymer coating formed by vapor phase polymer deposition that slows autoxidation by 2 orders of magnitude.
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Affiliation(s)
- Nikhila C Paranamana
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Matthias J Young
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
- Chemical and Biomedical Engineering, University of Missouri, Columbia, Missouri 65211, United States
- Materials Science and Engineering Institute, University of Missouri, Columbia, Missouri 65211, United States
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3
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Erdol Z, Ata A, Demir-Cakan R. Sodium-Selenium Batteries with Outstanding Rate Capability by Introducing Cubic Mn 2 O 3 Electrocatalyst. CHEMSUSCHEM 2024; 17:e202300998. [PMID: 37721954 DOI: 10.1002/cssc.202300998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/30/2023] [Accepted: 09/18/2023] [Indexed: 09/20/2023]
Abstract
With their high volumetric capacity and electronic conductivity, sodium-selenium (Na-Se) batteries have attracted attention for advanced battery systems. However, the irreversible deposition of sodium selenide (Na2 Se) results in rapid capacity degradation and poor Coulombic efficiency. To address these issues, cubic α-Mn2 O3 is introduced herein as an electrocatalyst to effectively catalyze Na2 Se conversion and improve the utilization of active materials. The results show that the addition of 10 wt% Mn2 O3 in the selenium/Ketjen black (Se/KB) composite enhances the conversion from Na2 Se to Se by lowering activation energy barrier and leads to fast sodium-ion kinetics and low internal resistance. Consequently, the Mn2 O3 -based composite delivers a high specific capacity of 635 mAh ⋅ g-1 at 675 mA ⋅ g-1 after 250 cycles as well as excellent cycling stability for 800 cycles with a high specific capacity of 317 mAh ⋅ g-1 even at the high current density of 3375 mA ⋅ g-1 . Due to the cubic Mn2 O3 electrocatalyst, the performance of the composites is superior to existing state-of-the-art Na-Se batteries reported in the literature.
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Affiliation(s)
- Zeynep Erdol
- Material Science and Technology, Turkish-German University, Istanbul, Turkey
- Materials Science and Engineering, Gebze Technical University, Kocaeli, Turkey
| | - Ali Ata
- Materials Science and Engineering, Gebze Technical University, Kocaeli, Turkey
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4
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Rasaily S, Baruah K, Sharma D, Lepcha P, Biswas S, Biswas AN, Tamang S, Pariyar A. Rationally Designed Manganese-Based Metal-Organic Frameworks as Altruistic Metal Oxide Precursors for Noble Metal-Free Oxygen Reduction Reaction. Inorg Chem 2023; 62:3026-3035. [PMID: 36755399 DOI: 10.1021/acs.inorgchem.2c03707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
The sluggish oxygen reduction reaction (ORR) at the cathode is challenging and hinders the growth of hydrogen fuel cells. Concerning kinetic values, platinum is the best known catalyst for ORR; however, its less abundance, high cost, and corrosive nature warrant the development of low-cost catalysts. We report the hydrothermal synthesis of two novel Mn-based metal-organic frameworks (MOFs), [Mn2(DOT)(H2O)2]n (Mn-SKU-1) and [Mn2(DOT)2(BPY)2(THF)]n (Mn-SKU-2) (DOT = 2,5-dihydroxyterephthalate; BPY = 4,4'-bipyridine). Mn-SKU-1 contains dimeric Mn(II) centers where the two corner-shared MnO6 octahedra fuse to give rise to an infinite Mn2O10 cluster, whereas the two Mn(II) ions coordinate to DOT and BPY moieties to give rise to a pillared structure in Mn-SKU-2 and form a 3D → 3D homo-interpenetration MOF with a twofold interpenetrated net. The pyrolysis of as-synthesized Mn-MOFs at 600 °C under N2 produced exclusively porous α-Mn2O3 composites (PSKU-1 and PSKU-2), with the BET surface area of 90.8 (for PSKU-1) and 179.3 m2 g-1 (for PSKU-2). These mesoporous MOF-derived α-Mn2O3 composites were modified as cathode materials for the electrocatalytic reduction of oxygen. The onset potential for the oxygen reduction reaction was found to be 0.90 V for PSKU-1 and 0.93 V for PSKU-2 versus RHE in 0.1 M KOH solution, with the current density of 4.8 and 6.0 mA cm-2, respectively, at 1600 rpm. Based on the RDE/RRDE results, the electrocatalytic oxygen reduction occurs majorly via the four-electron process. The electrocatalyst PSKU-2 is cheap, easy to use, retains 90% of its activity after 10 h of continuous use, and offers higher recyclability than Pt/C. The onset potential maximum current density and kinetic values (Jk = 11.68 mA cm-2 and Tafel slope = 85.0 mV dec-1) obtained in this work are higher than the values reported for pure Mn2O3.
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Affiliation(s)
- Sagarmani Rasaily
- Department of Chemistry, School of Physical Sciences, Sikkim University, Gangtok, East Sikkim 737102, India
| | - Khanindram Baruah
- Department of Chemistry, School of Physical Sciences, Sikkim University, Gangtok, East Sikkim 737102, India
| | - Debesh Sharma
- Department of Chemistry, School of Physical Sciences, Sikkim University, Gangtok, East Sikkim 737102, India
| | - Panjo Lepcha
- Department of Chemistry, National Institute of Technology, Ravangla, South Sikkim 737139, India
| | - Sachidulal Biswas
- Department of Chemistry, National Institute of Technology, Ravangla, South Sikkim 737139, India
| | | | - Sudarsan Tamang
- Department of Chemistry, School of Physical Sciences, Sikkim University, Gangtok, East Sikkim 737102, India
| | - Anand Pariyar
- Department of Chemistry, School of Physical Sciences, Sikkim University, Gangtok, East Sikkim 737102, India
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5
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Modifying acidic oxygen production properties of PbO2 by porous Mn2O3 microspheres for boosting stability. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Ibrahim S, Mohsin Saleem M, Imran M, Ali Shah W, Cordes D, M. Z. Slawin A, Arif Nadeem M. A two-dimensional manganese-containing coordination polymer for efficient catalysis of the oxygen evolution. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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7
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Fabricating dendritic N-C/MnOx to enable a highly efficient oxygen evolution reaction electrocatalysis. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.07.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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8
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Cheng Y, Yang F, Gong J, Wu B, Zhang Z, Chu J. Platinum Nanoparticles Decorated IrO
2
@MWCNT as an Improved Catalyst for Oxygen Evolution Reaction. ChemistrySelect 2021. [DOI: 10.1002/slct.202101127] [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]
Affiliation(s)
- Yaping Cheng
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology Xi'an 710054 China
| | - Fan Yang
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology Xi'an 710054 China
| | - Jiafang Gong
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology Xi'an 710054 China
| | - Bohua Wu
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology Xi'an 710054 China
| | - Zhao Zhang
- Department of Chemistry Zhejiang University Hangzhou 310027 China
- Zhejiang Yuxi Corrosion Control Co. Ltd, Xiangshan County Ningbo 315700 China
| | - Jia Chu
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology Xi'an 710054 China
- Department of Chemistry Zhejiang University Hangzhou 310027 China
- Zhejiang Yuxi Corrosion Control Co. Ltd, Xiangshan County Ningbo 315700 China
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9
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Isacfranklin M, Yuvakkumar R, Ravi G, Babu ES, Pannipara M, Al-Sehemi AG, Velauthapillai D. Effect of cationic, anionic, and mixed surfactant role on manganese oxide nanoparticles for energy storage applications. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01829-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Mokkath JH, Jahan M, Tanaka M, Tominaka S, Henzie J. Temperature-dependent electronic structure of bixbyite α-Mn 2O 3 and the importance of a subtle structural change on oxygen electrocatalysis. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2021; 22:141-149. [PMID: 33889057 PMCID: PMC8043564 DOI: 10.1080/14686996.2020.1868949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/09/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
Bixbyite α -Mn2O3 is an inexpensive Earth-abundant mineral that can be used to drive both oxygen evolution (OER) and oxygen reduction reactions (ORR) in alkaline conditions. It possesses a subtle orthorhombic → cubic phase change near room temperature that suppresses Jahn-Teller distortions and presents a unique opportunity to study how atomic structure affects the electronic structure and catalytic activity at a temperature range that is easily accessible in OER/ORR experiments. Previously, we observed that heat-treated α -Mn2O3 had a better performance as a bifunctional catalyst in the oxygen evolution (OER) and oxygen reduction reactions (ORR) (Dalton Trans. 2016, 45, 18,494-18,501). We hypothesized that heat-treatment pinned the material into a more electrochemically active cubic phase. In this manuscript, we use high-resolution X-ray diffraction to collect the temperature-dependent structures of α -Mn2O3, and then input them into ab initio calculations. The electronic structure calculations indicate that the orthorhombic → cubic phase transition causes the Mn 3d and O 2p bands to overlap and mix covalently, transforming α -Mn2O3 from a semiconductor to a semimetal. This subtle change in structure also modifies Mn-O-Mn bond distances, which may improve the activity of the material in oxygen electrochemistry. OER and ORR experiments were performed using the same electrode at various temperatures. They show a jump in the exchange current density near the phase change temperature, demonstrating the higher activity of the cubic phase.
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Affiliation(s)
- Junais Habeeb Mokkath
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Japan
- Department of Physics, Kuwait College of Science and Technology, Kuwait
| | - Maryam Jahan
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Japan
| | - Masahiko Tanaka
- Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, Sayo, Japan
| | - Satoshi Tominaka
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Japan
| | - Joel Henzie
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Japan
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11
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Ryabova AS, Istomin SY, Dosaev KA, Bonnefont A, Hadermann J, Arkharova NA, Orekhov AS, Sena RP, Saveleva VA, Kéranguéven G, Antipov EV, Savinova ER, Tsirlina GA. Mn2O3 oxide with bixbyite structure for the electrochemical oxygen reduction reaction in alkaline media: Highly active if properly manipulated. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137378] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Hazarika KK, Talukdar H, Sudarsanam P, Bhargava SK, Bharali P. Highly dispersed Mn
2
O
3
−Co
3
O
4
nanostructures on carbon matrix as heterogeneous Fenton‐like catalyst. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5512] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Hiya Talukdar
- Department of Chemical SciencesTezpur University Napaam 784 028 Assam India
| | - Putla Sudarsanam
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of ScienceRMIT University Melbourne VIC 3001 Australia
- Center for Sustainable Catalysis and EngineeringKU Leuven Celestijnenlaan 200F 3001 Heverlee Belgium
| | - Suresh K. Bhargava
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of ScienceRMIT University Melbourne VIC 3001 Australia
| | - Pankaj Bharali
- Department of Chemical SciencesTezpur University Napaam 784 028 Assam India
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13
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A Rapid Synthesis of Mesoporous Mn2O3 Nanoparticles for Supercapacitor Applications. COATINGS 2019. [DOI: 10.3390/coatings9100631] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Mn2O3 nanomaterials have been recently composing a variety of electrochemical systems like fuel cells, supercapacitors, etc., due to their high specific capacitance, low cost, abundance and environmentally benign nature. In this work, mesoporous Mn2O3 nanoparticles (NPs) were synthesized by manganese acetate, citric acid and sodium hydroxide through a hydrothermal process at 150 °C for 3 h. The synthesized mesoporous Mn2O3 NPs were thoroughly characterized in terms of their morphology, surfaces, as well as their crystalline, electrochemical and electrochemical properties. For supercapacitor applications, the synthesized mesoporous Mn2O3 NP-based electrode accomplished an excellent specific capacitance (Csp) of 460 F·g−1 at 10 mV·s−1 with a good electrocatalytic activity by observing good electrochemical properties in a 6 M KOH electrolyte. The excellent Csp might be explained by the improvement of the surface area, porous surface and uniformity, which might favor the generation of large active sites and a fast ionic transport over the good electrocatalytic surface of the Mn2O3 electrode. The fabricated supercapacitors exhibited a good cycling stability after 5000 cycles by maintaining ~83% of Csp.
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14
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Jiang B, Kim J, Guo Y, Wu KCW, Alshehri SM, Ahamad T, Alhokbany N, Henzie J, Yamachi Y. Efficient oxygen evolution on mesoporous IrOx nanosheets. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00302a] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Amorphous iridium oxide (IrOx) is a promising catalyst that has high activity in the oxygen evolution reaction (OER) over a broad range of pH values.
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Affiliation(s)
- Bo Jiang
- International Center for Materials Nanoarchitectonics (WPI-MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
| | - Jeonghun Kim
- Key Laboratory of Eco-chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Yanna Guo
- International Center for Materials Nanoarchitectonics (WPI-MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
| | - Kevin C. W. Wu
- Department of Chemical Engineering
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Saad M. Alshehri
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh
- Saudi Arabia
| | - Tansir Ahamad
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh
- Saudi Arabia
| | - Norah Alhokbany
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh
- Saudi Arabia
| | - Joel Henzie
- International Center for Materials Nanoarchitectonics (WPI-MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
| | - Yusuke Yamachi
- International Center for Materials Nanoarchitectonics (WPI-MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
- Key Laboratory of Eco-chemical Engineering
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15
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Tovini MF, Patil B, Koz C, Uyar T, Yılmaz E. Nanohybrid structured RuO 2/Mn 2O 3/CNF as a catalyst for Na-O 2 batteries. NANOTECHNOLOGY 2018; 29:475401. [PMID: 30192237 DOI: 10.1088/1361-6528/aadfb7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A 3D RuO2/Mn2O3/carbon nanofiber (CNF) composite has been prepared in this study by a facile two step microwave synthesis, as a bi-functional electrocatalyst towards oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). RuO2 nanoparticles with the mean size of 1.57 nm are uniformly distributed on Mn2O3 nano-rods grown on electrospun CNFs. The electrocatalytic activity of the composites are investigated towards ORR/OER under alkaline condition. The ternary RuO2/Mn2O3/CNF composite showed superior ORR activity in terms of onset potential (0.95 V versus RHE) and Tafel slope (121 mV dec-1) compared to its RuO2/CNF and Mn2O3/CNF counterparts. In the case of OER, the RuO2/Mn2O3/CNF exhibited 0.34 V over-potential value measured at 10 mA cm-2 and 52 mV dec-1 Tafel slope which are lower than those of the other synthesized samples and as compared to state of the art RuO2 and IrO x type materials. RuO2/Mn2O3/CNF also exhibited higher specific capacity (9352 mAh [Formula: see text]) than CNF (1395 mAh [Formula: see text]), Mn2O3/CNF (3108 mAh [Formula: see text]) and RuO2/CNF (4859 mAh g carbon -1) as the cathode material in Na-O2 battery, which indicates the validity of the results in non-aqueous medium. Taking the benefit of RuO2 and Mn2O3 synergistic effect, the decomposition of inevitable side products at the end of charge occurs at 3.838 V versus Na/Na+ by using RuO2/Mn2O3/CNF, which is 388 mV more cathodic compared with CNF.
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Affiliation(s)
- Mohammad Fathi Tovini
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center, Bilkent University, Ankara 06800, Turkey
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16
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An H, Chen Z, Yang J, Feng Z, Wang X, Fan F, Li C. An Operando-Raman study on oxygen evolution of manganese oxides: Roles of phase composition and amorphization. J Catal 2018. [DOI: 10.1016/j.jcat.2018.08.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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17
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Lan B, Zheng X, Cheng G, Han J, Li W, Sun M, Yu L. The art of balance: Engineering of structure defects and electrical conductivity of α-MnO2 for oxygen reduction reaction. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.06.195] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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18
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Ghosh S, Basu RN. Multifunctional nanostructured electrocatalysts for energy conversion and storage: current status and perspectives. NANOSCALE 2018; 10:11241-11280. [PMID: 29897365 DOI: 10.1039/c8nr01032c] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Electrocatalytic oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) have attracted widespread attention because of their important role in the application of various energy storage and conversion devices, such as fuel cells, metal-air batteries and water splitting devices. However, the sluggish kinetics of the HER/OER/ORR and their dependency on expensive noble metal catalysts (e.g., Pt) obstruct their large-scale application. Hence, the development of efficient and robust bifunctional or trifunctional electrocatalysts in nanodimension for both oxygen reduction/evolution and hydrogen evolution reactions is highly desired and challenging for their commercialization in renewable energy technologies. This review describes some recent developments in the discovery of bifunctional or trifunctional nanostructured catalysts with improved performances for application in rechargeable metal-air batteries and fuel cells. The role of the electronic structure and surface redox chemistry of nanocatalysts in the improvement of their performance for the ORR/OER/HER under an alkaline medium is highlighted and the associated reaction mechanisms developed in the recent literature are also summarized.
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Affiliation(s)
- Srabanti Ghosh
- CSIR - Central Glass and Ceramic Research Institute, Fuel Cell & Battery Division, 196, Raja S.C. Mullick Road, Kolkata 700032, INDIA.
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19
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Manganese oxide with hollow rambutan-like morphology as highly efficient electrocatalyst for oxygen evolution reaction. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-4014-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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20
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Cubic Mn 2 O 3 nanoparticles on carbon as bifunctional electrocatalyst for oxygen reduction and oxygen evolution reactions. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2017.12.012] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Menezes PW, Indra A, Gutkin V, Driess M. Boosting electrochemical water oxidation through replacement of O h Co sites in cobalt oxide spinel with manganese. Chem Commun (Camb) 2018; 53:8018-8021. [PMID: 28664206 DOI: 10.1039/c7cc03749j] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The strikingly high catalytic performance and stability of manganese substituted cobalt oxide spinel (MnxCo3-xO4) over pristine cobalt oxide spinel (Co3O4) for the alkaline electrochemical water oxidation is reported. The different role of cations could be uncovered along with the detection of drastic surface-structural changes during the catalysis using spectroscopic and microscopic methods.
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Affiliation(s)
- Prashanth W Menezes
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17 Juni 135, D-10623 Berlin, Germany. matthias.driess@.tu-berlin.de
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