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N. K MS, Sathiskumar C, John NS. Metallic MoO
2
as a Highly Selective Catalyst for Electrochemical Nitrogen Fixation to Ammonia under Ambient Conditions. ChemistrySelect 2023. [DOI: 10.1002/slct.202203344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Muhammed Safeer N. K
- Centre for Nano and Soft Matter Sciences (CeNS) Shivanapura Bengaluru 562162 India
- Manipal Academy of Higher Education Manipal 576104 India
| | | | - Neena S. John
- Centre for Nano and Soft Matter Sciences (CeNS) Shivanapura Bengaluru 562162 India
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2
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Bao Y, Chen T, Zhu Z, Zhang H, Qiu Y, Yin D. Mo 2C/C catalyst as efficient peroxymonosulfate activator for carbamazepine degradation. CHEMOSPHERE 2022; 287:132047. [PMID: 34474388 DOI: 10.1016/j.chemosphere.2021.132047] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/23/2021] [Accepted: 08/25/2021] [Indexed: 06/13/2023]
Abstract
Compared with generally reported Mo4+/Mo6+ redox cycle, the exposed Mo2+ active sites of Mo-based materials may have a superior potential to effectively activate PMS. However, Mo2+-involved materials as efficient catalysts in sulfate radical-based advanced oxidation processes (SR-AOPs) has rarely been researched. In this work, a spherical Mo2C-loaded carbon material, Mo2C/C, was prepared for the first time by hydrothermal-calcination method directly used as peroxymonosulfate (PMS) activator towards carbamazepine (CBZ) degradation. The results showed that the Mo2C/C could effectively remove nearly 100% CBZ (5 mg·L-1) in the presence of 0.75 mM PMS within 75 min under the optimal conditions. It was attributed to the reductive Mo2+, as active sites, benefits to absorb PMS on the surface to trigger electron transmission, and the defective carbon structures accelerate the activation of PMS. Consequently, the efficient Mo2+/Mo4+/Mo6+ electron transfer was achieved, resulting in excellent catalysis. A series of reactive species including SO4-, OH and 1O2 species participated in CBZ oxidation degradation. Derived from the superior stability and reusability of Mo2C/C, the removal rate of CBZ still maintained above 80% even after five consecutive cycles, which is expected to be applied in the wastewater treatment including pharmaceuticals in the future.
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Affiliation(s)
- Yujie Bao
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Safety, Shanghai, 200092, China
| | - Ting Chen
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Safety, Shanghai, 200092, China
| | - Zhiliang Zhu
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Safety, Shanghai, 200092, China.
| | - Hua Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092, China
| | - Yanling Qiu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Safety, Shanghai, 200092, China
| | - Daqiang Yin
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Safety, Shanghai, 200092, China
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3
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Li Z, Hu M, Wang P, Liu J, Yao J, Li C. Heterojunction catalyst in electrocatalytic water splitting. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213953] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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4
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Pseudocapacitive MoOx anode material with super-high rate and ultra-long cycle properties for aqueous zinc ion batteries. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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MOF derived multi-metal oxides anchored N, P-doped carbon matrix as efficient and durable electrocatalyst for oxygen evolution reaction. J Colloid Interface Sci 2021; 581:608-618. [DOI: 10.1016/j.jcis.2020.07.117] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/21/2020] [Accepted: 07/23/2020] [Indexed: 12/13/2022]
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Tang X, Liu J, Zhan K, Sun H, Zhao B, Yan Y. Molybdenum-tungsten Oxide Nanowires Rich in Oxygen Vacancies as An Advanced Electrocatalyst for Hydrogen Evolution. Chem Asian J 2020; 15:2984-2991. [PMID: 32789973 DOI: 10.1002/asia.202000822] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/11/2020] [Indexed: 12/29/2022]
Abstract
Electrolysis of water is a promising way to produce hydrogen fuel in large scale. The commercialization of this technology requires highly efficient non-noble metal electrocatalysts to decease the energy input for the hydrogen evolution reaction (HER). In this work, a novel nanowire structured molybdenum-tungsten bimetallic oxide (CTAB-D-W4 MoO3 ) is synthesized by a simple hydrothermal method followed with post annealing treatment. The obtained metal oxides feature with enhanced conductivity, rich oxygen vacancies and customized electronic structure. As such, the composite electrocatalyst exhibits excellent electrocatalytic performance for HER in an acidic environment, achieving a large current density of 100 mA cm-2 at overpotential of only 286 mV and a small Tafel slope of 71.2 mV dec-1 . The excellent electrocatalytic HER performance of CTAB-D-W4 MoO3 is attributed to the unique nanowire structure, rich catalytic active sites and promoted electron transfer rate.
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Affiliation(s)
- Xinxin Tang
- School of Materials Science & Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Jianglin Liu
- School of Materials Science & Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Ke Zhan
- School of Materials Science & Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Hao Sun
- School of Materials Science & Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Bin Zhao
- School of Materials Science & Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Ya Yan
- School of Materials Science & Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
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Sathiskumar C, Alex C, John NS. Nickel Cobalt Phosphite Nanorods Decorated with Carbon Nanotubes as Bifunctional Electrocatalysts in Alkaline Medium with a High Yield of Hydrogen Peroxide. ChemElectroChem 2020. [DOI: 10.1002/celc.202000176] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Chandraraj Alex
- Centre for Nano and Soft Matter Sciences Jalahalli Bengaluru 560013 India
| | - Neena S. John
- Centre for Nano and Soft Matter Sciences Jalahalli Bengaluru 560013 India
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Zhang X, Chen Y, Chen M, Wang B, Yu B, Wang X, Zhang W, Yang D. FeNi 3-modified Fe 2O 3/NiO/MoO 2 heterogeneous nanoparticles immobilized on N, P co-doped CNT as an efficient and stable electrocatalyst for water oxidation. NANOSCALE 2020; 12:3777-3786. [PMID: 31994573 DOI: 10.1039/c9nr09460a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
As a rate-determining step, electrocatalytic water oxidation acts a pivotal role in the water splitting process. As a consequence, it is of great significance to explore low-cost, efficient and durable electrocatalysts for the oxygen evolution reaction (OER) to promote electrocatalytic splitting water. Herein, for the first time, FeNi3-modified Fe2O3/NiO/MoO2 heterogeneous nanoparticles immobilized on N, P co-doped CNT matrix materials (FNM/NPCNT) are synthesized via a facile solid-phase grinding of the precursor, composed of nickel hexacyanoferrate/phosphomolybdic acid/CNT, and subsequently pyrolyzing under nitrogen atmosphere without any further post-processing. Due to its significant enhancement of the charge transfer efficiency and prevention of the metallic-based catalysts from being corroded, the as-prepared FNM/NPCNT hybrid electrocatalyst shows a high OER activity with a low overpotential of 282 mV vs. RHE at 10 mA cm-2 and a small Tafel slope of 46.2 mV dec-1 in an alkaline electrolyte. Moreover, the as-prepared FNM/NPCNT hybrid delivers a large mass activity of 327.6 A g-1 at the potential of 1.7 V and excellent stability (more than 20 h). This study opens up a new approach to design and synthesize non-precious transition metal-based composites immobilized N, P co-doped CNT materials as OER catalysts with high efficiency and long-term stability for promoting water splitting.
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Affiliation(s)
- Xiaojuan Zhang
- School of Electronic Science and Engineering, and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| | - Yuanfu Chen
- School of Electronic Science and Engineering, and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, PR China. and Department of Physics, School of Science, Tibet University, Lhasa, 850000, PR China
| | - Minglong Chen
- Chengdu Kanghong Pharmaceutical Group Co., Ltd, Chengdu 610054, PR China
| | - Bin Wang
- School of Electronic Science and Engineering, and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| | - Bo Yu
- School of Electronic Science and Engineering, and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| | - Xinqiang Wang
- School of Electronic Science and Engineering, and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| | - Wanli Zhang
- School of Electronic Science and Engineering, and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| | - Dongxu Yang
- School of Electronic Science and Engineering, and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
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Tadesse SF, Kuo DH, Kebede WL, Duresa LW. Synthesis and characterization of vanadium-doped Mo(O,S) 2 oxysulfide for efficient photocatalytic degradation of organic dyes. NEW J CHEM 2020. [DOI: 10.1039/d0nj02565h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
We developed simple and low cost synthesis methods at low temperature to synthesize V-doped Mo(O,S)2 for the photocatalytic degradation of dyes.
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Affiliation(s)
- Sleshi Fentie Tadesse
- Department of Material Science and Engineering
- National Taiwan University of Science and Technology
- Taipei 10607
- Taiwan
| | - Dong-Hau Kuo
- Department of Material Science and Engineering
- National Taiwan University of Science and Technology
- Taipei 10607
- Taiwan
| | - Worku Lakew Kebede
- Department of Material Science and Engineering
- National Taiwan University of Science and Technology
- Taipei 10607
- Taiwan
| | - Lalisa Wakjira Duresa
- Department of Material Science and Engineering
- National Taiwan University of Science and Technology
- Taipei 10607
- Taiwan
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Ramakrishnan V, Kim H, Yang B. Improving the photo-cathodic properties of TiO2 nano-structures with graphdiynes. NEW J CHEM 2019. [DOI: 10.1039/c9nj02351h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
GD∼GDO/TiO2 nanostructure with improved photocathodic activity.
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Affiliation(s)
- Vivek Ramakrishnan
- School of Advanced Materials and System Engineering
- Kumoh National of Institute of Technology
- Gyeongsangbuk-do
- Korea
| | - Hyun Kim
- School of Advanced Materials and System Engineering
- Kumoh National of Institute of Technology
- Gyeongsangbuk-do
- Korea
| | - Beelyong Yang
- School of Advanced Materials and System Engineering
- Kumoh National of Institute of Technology
- Gyeongsangbuk-do
- Korea
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