1
|
Ma Y, Ha Y, Chen L, An Z, Xing L, Wang Z, Li Z. Electrochemically Induced Ru/CoOOH Synergistic Catalyst as Bifunctional Electrode Materials for Alkaline Overall Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311884. [PMID: 38412403 DOI: 10.1002/smll.202311884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/16/2024] [Indexed: 02/29/2024]
Abstract
Efficient and affordable price bifunctional electrocatalysts based on transition metal oxides for oxygen and hydrogen evolution reactions have a balanced efficiency, but it remains a significant challenge to control their activity and durability. Herein, a trace Ru (0.74 wt.%) decorated ultrathin CoOOH nanosheets (≈4 nm) supported on the surface of nickel foam (Ru/CoOOH@NF) is rationally designed via an electrochemically induced strategy to effectively drive the electrolysis of alkaline overall water splitting. The as-synthesized Ru/CoOOH@NF electrocatalysts integrate the advantages of a large number of different HER (Ru nanoclusters) and OER (CoOOH nanosheets) active sites as well as strong in-suit structure stability, thereby exhibiting exceptional catalytic activity. In particular, the ultra-low overpotential of the HER (36 mV) and the OER (264 mV) are implemented to achieve 10 mA cm-2. Experimental and theoretical calculations also reveal that Ru/CoOOH@NF possesses high intrinsic conductivity, which facilitates electron release from H2O and H-OH bond breakage and accelerates electron/mass transfer by regulating the charge distribution. This work provides a new avenue for the rational design of low-cost and high-activity bifunctional electrocatalysts for large-scale water-splitting technology and expects to help contribute to the creation of various hybrid electrocatalysts.
Collapse
Affiliation(s)
- Yingyan Ma
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Yuan Ha
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Liangqiang Chen
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Ziqi An
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Linzhuang Xing
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Zhenni Wang
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Zhimin Li
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| |
Collapse
|
2
|
Lee J, Singh BK, Hafeez MA, Oh K, Um W. Comparative study of PMS oxidation with Fenton oxidation as an advanced oxidation process for Co-EDTA decomplexation. CHEMOSPHERE 2022; 300:134494. [PMID: 35390411 DOI: 10.1016/j.chemosphere.2022.134494] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/29/2022] [Accepted: 03/30/2022] [Indexed: 06/14/2023]
Abstract
In nuclear industry, Co-EDTA complex is generated due to the decontamination activities of nuclear power plants (NPPs). This complex is extremely refractory to the convention methods and can escalate the mobility of Co radionuclide in the environment. Due to its hazardous impact on human and environment, the effective treatments of Co-EDTA complexes are highly recommended. In this study, for the first time, we applied both hydroxyl (OH) and sulfate radical (SO4-) based advanced oxidation processes (AOPs) namely Fenton and peroxymonosulfate (PMS) reactions for the Co-EDTA decomplexation. Both reactions exhibited higher Co-EDTA decomplexation at pH = 3, however, the PMS based reaction was found to be superior, which showed highest decomplexation efficiency (without pH adjustment) over Fenton reaction (pH = 1-13). Moreover, PMS based system was found to be more suitable than Fenton reaction, because PMS showed best Co-EDTA decomplexation efficiency without any additional catalyst dosages at the shorter reaction time. XRD data confirmed the presence of both CoO and Co(OH)2 in the precipitates after treatment. The electron spin resonance spectroscopy (ESR) analysis identified OH and SO4- in Fenton and PMS system, respectively. From this study, we believe that PMS based reaction is a superior alternative of Fenton reaction for the Co-EDTA decomplexation.
Collapse
Affiliation(s)
- Juhyeok Lee
- Division of Advanced Nuclear Engineering (DANE), Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-GU, Pohang, 37673, Republic of Korea
| | - Bhupendra Kumar Singh
- Division of Advanced Nuclear Engineering (DANE), Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-GU, Pohang, 37673, Republic of Korea; Nuclear Environmental Technology Institute (NETI), Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 790-784, Republic of Korea
| | - Muhammad Aamir Hafeez
- Division of Advanced Nuclear Engineering (DANE), Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-GU, Pohang, 37673, Republic of Korea
| | - Kyeongseok Oh
- Department of Chemical and Biological Engineering, Inha Technical College, 100 Inha-ro, Michuhol-gu, Incheon, 22212, Republic of Korea
| | - Wooyong Um
- Division of Advanced Nuclear Engineering (DANE), Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-GU, Pohang, 37673, Republic of Korea; Division of Environmental Science and Engineering (DESE), Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-Gu, Pohang, 37673, Republic of Korea; Nuclear Environmental Technology Institute (NETI), Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 790-784, Republic of Korea.
| |
Collapse
|
3
|
Djoudi N, Le Page Mostefa M, Muhr H. Influence of Temperature on Cobalt Hydroxide Precipitation for Recovery from Battery Leachates. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202000330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Neila Djoudi
- Université de Lorraine Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS 1 rue Grandville BP20451 54001 Nancy France
| | - Marie Le Page Mostefa
- Université de Lorraine Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS 1 rue Grandville BP20451 54001 Nancy France
| | - Hervé Muhr
- Université de Lorraine Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS 1 rue Grandville BP20451 54001 Nancy France
| |
Collapse
|
4
|
Highly selective simultaneous electrochemical detection of trace level of heavy metals in water samples based on the single-crystalline Co3O4 nanocubes modified electrode. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115159] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
5
|
Two-Dimensional Materials and Composites as Potential Water Splitting Photocatalysts: A Review. Catalysts 2020. [DOI: 10.3390/catal10040464] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Hydrogen production via water dissociation under exposure to sunlight has emanated as an environmentally friendly, highly productive and expedient process to overcome the energy production and consumption gap, while evading the challenges of fossil fuel depletion and ecological contamination. Various classes of materials are being explored as viable photocatalysts to achieve this purpose, among which, the two-dimensional materials have emerged as prominent candidates, having the intrinsic advantages of visible light sensitivity; structural and chemical tuneability; extensively exposed surface area; and flexibility to form composites and heterostructures. In an abridged manner, the common types of 2D photocatalysts, their position as potential contenders in photocatalytic processes, their derivatives and their modifications are described herein, as it all applies to achieving the coveted chemical and physical properties by fine-tuning the synthesis techniques, precursor ingredients and nano-structural alterations.
Collapse
|
6
|
Ionothermal Synthesis of Metal Oxide-Based Nanocatalysts and Their Application towards the Oxidative Desulfurization of Dibenzothiophene. J CHEM-NY 2020. [DOI: 10.1155/2020/3894804] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Herein, different types of metal-containing ionic liquid (IL) complexes and various metal oxide-based nanocatalysts have been successfully prepared (from ionic liquids) and applied for the oxidative desulfurization (ODS) of dibenzothiophene (DBT). The ILs complexes are comprised of N,N′-dialkylimidazolium salts of the type [RMIM-Cl]2[MCln], where [RMIM+] = 1 alkyl-3-methylimidazolium and M = Mn(II)/Fe(II)/Ni(II)/Co(II). These complexes were prepared using an easy synthetic route by refluxing the methanolic solutions of imidazolium chloride and metal chlorides under facile conditions. The as-prepared complexes were further used as precursors during the ionothermal and chemical synthesis of various metal oxide-based nanocatalysts. The resulting ILs salts and metal oxides NPs have been characterized by FT-IR, TGA, XRD, SEM, and TEM analysis. The results indicate that thermal and chemical treatment of ILs based precursor has produced different phases of metal oxide NPs. The calcination produced α-Fe2O3, Mn3O4, and Co3O4, NPs, whereas the chemical treatment of the ILs salts have led to the production of Fe3O4, Mn2O3, and α-Co(OH)2. All the as-prepared salts and metal oxide-based nanocatalysts were used as catalysts towards ODS of dibenzothiophene. The oxidation of dibenzothiophene was performed at atmospheric conditions using hydrogen peroxide as the oxygen donor. Among various catalysts, the thermally obtained metal oxide NPs such as α-Fe2O3, Mn3O4, and Co3O4, have demonstrated relatively superior catalytic activities compared to the other materials. For example, among these nanocatalysts, α-Fe2O3 has exhibited a maximum conversion (∼99%) of dibenzothiophene (DBT) to dibenzothiophene sulfone (DBTO2).
Collapse
|
7
|
Kwon S, Lee JH. A cobalt hydroxide nanosheet-mediated synthesis of core-shell-type Mn 0.005Co 2.995O 4 spinel nanocubes as efficient oxygen electrocatalysts. Dalton Trans 2020; 49:1652-1659. [PMID: 31950121 DOI: 10.1039/c9dt04009a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We developed a topotatic growth method involving an exfoliated cobalt hydroxide nanosheet, which allows water-based mild reaction conditions (90 °C) for the formation of the homogeneous cubic structure of MnxCo3-xO4 spinel oxides with Mn(ii)/Co(ii) salts. The size of the nanocubes increased as the Mn content increased, e.g., 13 nm (x = 0.0), 23 nm (x = 0.005), 50 nm (x = 0.05), and 140 nm (x = 1.0). The incorporation of Mn into Co3O4 dramatically increased the ORR performance because the catalytically active Mn cations exclusively substitute the less active Co2+ in the MnxCo3-xO4 structure. We effectively reduced the Mn content in the spinel Co3O4 structure to a value of 0.005, representing the Mn0.005Co2.995O4 spinel nanocubes that unexpectedly exhibited the best ORR activity among the samples. In addition, the XPS and ICP characterizations suggest an Mn-rich shell/Co-rich core for the MnxCo3-xO4 nanocubes.
Collapse
Affiliation(s)
- Sunglun Kwon
- Department of Chemistry, The Catholic University of Korea, Bucheon, 14662, South Korea.
| | | |
Collapse
|
8
|
Li X, Almkhelfe H, Bedford NM, Back TC, Hohn KL, Amama PB. Characterization and catalytic behavior of Fischer–Tropsch catalysts derived from different cobalt precursors. Catal Today 2019. [DOI: 10.1016/j.cattod.2019.05.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
9
|
El-Jemni MA, Abdel-Samad HS, Essa AS, Hassan HH. Controlled electrodeposited cobalt phases for efficient OER catalysis, RRDE and eQCM studies. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.05.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
10
|
Zhao X, Liu Y, Wang J, Qian L, Yao L, Chen Z, Cai Q, Xing X, Wu Z. Modulating the Hydrothermal Synthesis of Co3O4 and CoOOH Nanoparticles by H2O2 Concentration. Inorg Chem 2019; 58:7054-7061. [DOI: 10.1021/acs.inorgchem.9b00706] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaoyi Zhao
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunpeng Liu
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiayi Wang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lixiong Qian
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Yao
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhongjun Chen
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Quan Cai
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Xueqing Xing
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhonghua Wu
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
11
|
Reghu Nath A, Jayachandran A, Sandhyarani N. Nanosheets of nickel, cobalt and manganese triple hydroxides/oxyhydroxides as efficient electrode materials for asymmetrical supercapacitors. Dalton Trans 2019; 48:4211-4217. [DOI: 10.1039/c9dt00302a] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An in situ method to fabricate thin nanosheets of Nickel, Cobalt and Manganese composite for charge storage applications is reported.
Collapse
Affiliation(s)
- Anish Reghu Nath
- Nanoscience Research Laboratory
- School of Nano Science and Technology
- National Institute of Technology Calicut
- Calicut
- India
| | | | - Neelakandapillai Sandhyarani
- Nanoscience Research Laboratory
- School of Nano Science and Technology
- National Institute of Technology Calicut
- Calicut
- India
| |
Collapse
|
12
|
Ma K, Liu F, Yuan YF, Liu XQ, Wang J, Xie J, Cheng JP. CoO microspheres and metallic Co evolved from hexagonal α-Co(OH) 2 plates in a hydrothermal process for lithium storage and magnetic applications. Phys Chem Chem Phys 2018; 20:595-604. [PMID: 29226920 DOI: 10.1039/c7cp06868a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
CoO microspheres and metallic Co could be successfully synthesized by simply reacting cobalt acetate with a mixture solvent of ethylene glycol and deionized water in a hydrothermal process for different times. As the reaction proceeded, α-Co(OH)2, CoO and metallic Co were produced. To understand the phase evolution processes from α-Co(OH)2 to CoO and then metallic Co, a range of time-dependent experiments were carried out, and the intermediate products obtained at different reaction times were investigated in detail. The investigation revealed that CoO microspheres were actually evolved from α-Co(OH)2 as a precursor. Just elongating the reaction time, CoO microspheres could be further reduced to metallic Co. With a pure ethylene glycol medium for the same reaction, only α-Co(OH)2 could be generated, indicating an important role of water. When the obtained CoO microspheres were used as anode materials for lithium-ion batteries, they delivered a specific capacity of 803 mA h g-1 at 0.1 A g-1 with a retention of 453 mA h g-1 after 70 cycles. Meanwhile, the magnetic properties of the obtained CoO microspheres and metallic Co were investigated, with the CoO microspheres showing an antiferromagnetic behavior and the metallic Co exhibiting ferromagnetic characteristics. This study suggested a novel method for synthesizing CoO with a uniform microsphere morphology and bulk metallic Co easily.
Collapse
Affiliation(s)
- KeYuan Ma
- State Key Laboratory of Silicon Materials, School of Materials Science & Engineering, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Zhejiang University, Hangzhou 310027, China.
| | | | | | | | | | | | | |
Collapse
|
13
|
Rovetta AAS, Browne MP, Harvey A, Godwin IJ, Coleman JN, Lyons MEG. Cobalt hydroxide nanoflakes and their application as supercapacitors and oxygen evolution catalysts. NANOTECHNOLOGY 2017; 28:375401. [PMID: 28696333 DOI: 10.1088/1361-6528/aa7f1b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Finding alternative routes to access and store energy has become a major issue recently. Transition metal oxides have shown promising behaviour as catalysts and supercapacitors. Recently, liquid exfoliation of bulk metal oxides appears to be an effective route which provides access to two-dimensional (2D) nano-flakes, the size of which can be easily selected. These 2D materials exhibit excellent electrochemical charge storage and catalytic activity for the oxygen evolution reaction. In this study, various sized selected cobalt hydroxide nano-flake materials are fabricated by this time efficient and highly reproducible process. Subsquently, the electrochemical properties of the standard size Co(OH)2 nanoflakes were investigated. The oxide modified electrodes were prepared by spraying the metal oxide flake suspension onto a porous conductive support electrode foam, either glassy carbon or nickel. The cobalt hydroxide/nickel foam system was found to have an overpotential value at 10 mA cm-2 in 1 M NaOH as low as 280 mV and an associated redox capacitance exhibiting numerical values up to 1500 F g-1, thereby making it a viable dual use electrode.
Collapse
Affiliation(s)
- A A S Rovetta
- Trinity Electrochemical Energy Conversion & Electrocatalysis (TEECE) Group, School of Chemistry, Trinity College Dublin, Dublin, Ireland. AMBER and CRANN Institutes, Trinity College Dublin, Dublin, Ireland
| | | | | | | | | | | |
Collapse
|
14
|
Roy A, Jadhav HS, Thorat GM, Seo JG. Electrochemical growth of Co(OH)2 nanoflakes on Ni foam for methanol electro-oxidation. NEW J CHEM 2017. [DOI: 10.1039/c7nj01929g] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Co(OH)2 nanoflakes directly grown on Ni foam using an electrodeposition route exhibit a promising performance for electrocatalytic oxidation of methanol.
Collapse
Affiliation(s)
- Animesh Roy
- Department of Energy Science and Technology
- Energy and Environment Fusion Technology Center
- Myongji University
- Nam-dong
- Cheoin-gu
| | - Harsharaj S. Jadhav
- Department of Energy Science and Technology
- Energy and Environment Fusion Technology Center
- Myongji University
- Nam-dong
- Cheoin-gu
| | - Gaurav M. Thorat
- Department of Energy Science and Technology
- Energy and Environment Fusion Technology Center
- Myongji University
- Nam-dong
- Cheoin-gu
| | - Jeong Gil Seo
- Department of Energy Science and Technology
- Energy and Environment Fusion Technology Center
- Myongji University
- Nam-dong
- Cheoin-gu
| |
Collapse
|