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Pramoda K, Chithaiah P, Rao CNR. Rhombohedrally stacked layered transition metal dichalcogenides and their electrocatalytic applications. NANOSCALE 2024; 16:15909-15927. [PMID: 39145442 DOI: 10.1039/d4nr02021a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Layered transition metal dichalcogenides (TMDCs) are extensively investigated as catalyst materials for a wide range of electrochemical applications due to their high surface area and versatile electronic and chemical properties. Bulk TMDCs are van der Waals solids that possess strong in-plane bonding and weak inter-layer interactions. In the few-layer 2D TMDCs, several polymorphic structures have been reported as each individual layer can either retain octahedral or trigonal prismatic coordination. Among them, 1T (tetragonal), 2H (hexagonal) and 3R (rhombohedral) phases are very common. These polymorphs can display discrepancies in their catalytic activity as their electronic structure diverges due to different d orbital filling states. The broken inversion symmetry and large exposed edge sites of some of the 3R-phase TMDCS such as MoS2, NbS2 and TaS2 appear to be advantageous for electrocatalytic water reduction and battery applications. We describe recent studies in phase engineering of 2D TMDCs, particularly aiming at the 3R polytype and their electrocatalytic properties. Redox ability primarily depends on a distinct polymorphic phase in which TMDCs are isolated, and hence, with rich polymorphic structures being reported, numerous new catalytic applications can be realized. Phase conversion from 2H to 3R phase in some TMDCs enhances structural integrity and establishes robustness under harsh chemical conditions.
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Affiliation(s)
- K Pramoda
- Centre for Nano and Material Sciences, Jain (Deemed-to-be University), Jain Global Campus, Kanakapura, Bangalore, Karnataka, 562112, India
| | - Pallellappa Chithaiah
- New Chemistry Unit, School of Advanced Materials and International Centre for Material Science, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P. O., Bengaluru-560064, India.
| | - C N R Rao
- New Chemistry Unit, School of Advanced Materials and International Centre for Material Science, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P. O., Bengaluru-560064, India.
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Zheng J, Zhang H, Lv J, Zhang M, Wan J, Gerrits N, Wu A, Lan B, Wang W, Wang S, Tu X, Bogaerts A, Li X. Enhanced NH 3 Synthesis from Air in a Plasma Tandem-Electrocatalysis System Using Plasma-Engraved N-Doped Defective MoS 2. JACS AU 2023; 3:1328-1336. [PMID: 37234124 PMCID: PMC10207100 DOI: 10.1021/jacsau.3c00087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 05/27/2023]
Abstract
We have developed a sustainable method to produce NH3 directly from air using a plasma tandem-electrocatalysis system that operates via the N2-NOx-NH3 pathway. To efficiently reduce NO2- to NH3, we propose a novel electrocatalyst consisting of defective N-doped molybdenum sulfide nanosheets on vertical graphene arrays (N-MoS2/VGs). We used a plasma engraving process to form the metallic 1T phase, N doping, and S vacancies in the electrocatalyst simultaneously. Our system exhibited a remarkable NH3 production rate of 7.3 mg h-1 cm-2 at -0.53 V vs RHE, which is almost 100 times higher than the state-of-the-art electrochemical nitrogen reduction reaction and more than double that of other hybrid systems. Moreover, a low energy consumption of only 2.4 MJ molNH3-1 was achieved in this study. Density functional theory calculations revealed that S vacancies and doped N atoms play a dominant role in the selective reduction of NO2- to NH3. This study opens up new avenues for efficient NH3 production using cascade systems.
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Affiliation(s)
- Jiageng Zheng
- State
Key Laboratory of Clean Energy Utilization, College of Energy and
Engineering, Academy of Ecological Civilization, Zhejiang University, Hangzhou 310027, China
| | - Hao Zhang
- State
Key Laboratory of Clean Energy Utilization, College of Energy and
Engineering, Academy of Ecological Civilization, Zhejiang University, Hangzhou 310027, China
| | - Jiabao Lv
- State
Key Laboratory of Clean Energy Utilization, College of Energy and
Engineering, Academy of Ecological Civilization, Zhejiang University, Hangzhou 310027, China
| | - Meng Zhang
- College
of Optical Science and Engineering, Zhejiang
University, Hangzhou 310027, China
| | - Jieying Wan
- State
Key Laboratory of Clean Energy Utilization, College of Energy and
Engineering, Academy of Ecological Civilization, Zhejiang University, Hangzhou 310027, China
| | - Nick Gerrits
- Research
Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, BE-2610 Wilrijk, Belgium
| | - Angjian Wu
- State
Key Laboratory of Clean Energy Utilization, College of Energy and
Engineering, Academy of Ecological Civilization, Zhejiang University, Hangzhou 310027, China
| | - Bingru Lan
- State
Key Laboratory of Clean Energy Utilization, College of Energy and
Engineering, Academy of Ecological Civilization, Zhejiang University, Hangzhou 310027, China
| | - Weitao Wang
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, U.K.
| | - Shuangyin Wang
- State
Key Laboratory of Chem/Bio-Sensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Xin Tu
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, U.K.
| | - Annemie Bogaerts
- Research
Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, BE-2610 Wilrijk, Belgium
| | - Xiaodong Li
- State
Key Laboratory of Clean Energy Utilization, College of Energy and
Engineering, Academy of Ecological Civilization, Zhejiang University, Hangzhou 310027, China
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Rani R, Biswas A, Ahammed R, Purkait T, Kundu A, Sarkar S, Raturi M, De Sarkar A, Dey RS, Hazra KS. Engineering Catalytically Active Sites by Sculpting Artificial Edges on MoS 2 Basal Plane for Dinitrogen Reduction at a Low Overpotential. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2206357. [PMID: 36942916 DOI: 10.1002/smll.202206357] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 02/24/2023] [Indexed: 06/18/2023]
Abstract
Engineering catalytically active sites have been a challenge so far and often relies on optimization of synthesis routes, which can at most provide quantitative enhancement of active facets, however, cannot provide control over choosing orientation, geometry and spatial distribution of the active sites. Artificially sculpting catalytically active sites via laser-etching technique can provide a new prospect in this field and offer a new species of nanocatalyst for achieving superior selectivity and attaining maximum yield via absolute control over defining their location and geometry of every active site at a nanoscale precision. In this work, a controlled protocol of artificial surface engineering is shown by focused laser irradiation on pristine MoS2 flakes, which are confirmed as catalytic sites by electrodeposition of AuNPs. The preferential Au deposited catalytic sites are found to be electrochemically active for nitrogen adsorption and its subsequent reduction due to the S-vacancies rather than Mo-vacancy, as advocated by DFT analysis. The catalytic performance of Au-NR/MoS2 shows a high yield rate of ammonia (11.43 × 10-8 mol s-1 cm-2 ) at a potential as low as -0.1 V versus RHE and a notable Faradaic efficiency of 13.79% during the electrochemical nitrogen reduction in 0.1 m HCl.
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Affiliation(s)
- Renu Rani
- Institute of Nano Science and Technology (INST), Sector-81, Mohali, Punjab, 140306, India
| | - Ashmita Biswas
- Institute of Nano Science and Technology (INST), Sector-81, Mohali, Punjab, 140306, India
| | - Raihan Ahammed
- Institute of Nano Science and Technology (INST), Sector-81, Mohali, Punjab, 140306, India
| | - Taniya Purkait
- Institute of Nano Science and Technology (INST), Sector-81, Mohali, Punjab, 140306, India
| | - Anirban Kundu
- Institute of Nano Science and Technology (INST), Sector-81, Mohali, Punjab, 140306, India
| | - Subhajit Sarkar
- Institute of Nano Science and Technology (INST), Sector-81, Mohali, Punjab, 140306, India
| | - Mamta Raturi
- Institute of Nano Science and Technology (INST), Sector-81, Mohali, Punjab, 140306, India
| | - Abir De Sarkar
- Institute of Nano Science and Technology (INST), Sector-81, Mohali, Punjab, 140306, India
| | - Ramendra Sundar Dey
- Institute of Nano Science and Technology (INST), Sector-81, Mohali, Punjab, 140306, India
| | - Kiran Shankar Hazra
- Institute of Nano Science and Technology (INST), Sector-81, Mohali, Punjab, 140306, India
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Wang Z, Guo Z, Gao Y, Wang D, Cui X. Stable Mo/1T-MoS 2 Monolith Catalyst with a Metallic Interface for Large Current Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 36913649 DOI: 10.1021/acsami.2c19983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
To achieve global carbon neutrality, the realization of highly active and stable catalysts is critical for water splitting to produce green hydrogen (H2). MoS2 is considered to be the most promising non-precious metal catalyst for H2 evolution because of its excellent properties. Herein, we report a metal-phase MoS2 (1T-MoS2) synthesized using a simple hydrothermal method. Using a similar procedure, we synthesize a monolithic catalyst (MC) in which 1T-MoS2 is vertically bonded to a metal molybdenum plate via strong covalent bonds. These properties endow the MC with an extremely low-resistance interface and mechanical robustness, equipping it with outstanding durability and fast charge transfer. Results show that the MC can achieve stable water splitting at 350 mA cm-2 current density with a low 400 mV overpotential. The MC exhibits negligible performance decay after 60 h of operation at a large current density of 350 mA cm-2. This study provides a novel possible MC with robust and metallic interfaces to achieve technically high current water splitting to produce green H2.
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Affiliation(s)
- Zhiwei Wang
- School of Chemical Engineering, Engineering Research Center of Large-scale Energy Storage Technology, Ministry of Education, Inner Mongolia University of Technology, Hohhot 010051, P.R. China
- School of Business Administration, Inner Mongolia University of Finance and Economics, Hohhot 010070, P.R. China
| | - Zihan Guo
- School of Chemical Engineering, Engineering Research Center of Large-scale Energy Storage Technology, Ministry of Education, Inner Mongolia University of Technology, Hohhot 010051, P.R. China
| | - Yanfang Gao
- School of Chemical Engineering, Engineering Research Center of Large-scale Energy Storage Technology, Ministry of Education, Inner Mongolia University of Technology, Hohhot 010051, P.R. China
| | - Dong Wang
- School of Chemical Engineering, Engineering Research Center of Large-scale Energy Storage Technology, Ministry of Education, Inner Mongolia University of Technology, Hohhot 010051, P.R. China
| | - Xiaoming Cui
- School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, P.R. China
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Alahmadi M, BEN AOUN S. One-Pot In-Situ Hydrothermal Synthesis of VSe2/MoSe2 Nanocomposite for Enhanced Hydrogen Evolution Reaction. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
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Zeng L, Qiao Z, Peng X, Liu Z, Li Z, Yang B, Lei L, Wu G, Hou Y. Progress in Mo/W-based electrocatalysts for nitrogen reduction to ammonia under ambient conditions. Chem Commun (Camb) 2022; 58:2096-2111. [PMID: 35048091 DOI: 10.1039/d1cc06665j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ammonia (NH3), possessing high hydrogen content and energy density, has been widely employed for fertilizers and value-added chemicals in green energy carriers and fuels. However, the current NH3 synthesis largely depends on the traditional Haber-Bosch process, which needs tremendous energy consumption and generates greenhouse gas, resulting in severe energy and environmental issues. The electrochemical strategy of converting N2 to NH3 under mild conditions is a potentially promising route to realize an environmentally friendly concept. Among various catalysts, molybdenum/tungsten-based electrocatalysts have been widely used in electrochemical catalytic and energy conversion. This review describes the latest progress of molybdenum/tungsten-based electrocatalysts for the electrochemical nitrogen reduction reaction. The fundamental roles of morphology, doping, defects, heterojunction, and coupling regulation in improving electrocatalytic performance are mainly discussed. Besides, some tailoring strategies for enhancing the conversion efficiency of N2 to NH3 over Mo/W-based electrocatalysts are also summarized. Finally, the existing challenges and limitations of N2 fixation are proposed, as well as possible future perspectives, which will provide a platform for further development of advanced Mo/W-based N2 reduction systems.
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Affiliation(s)
- Libin Zeng
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China. .,Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Zhi Qiao
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA.
| | - Xianyun Peng
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China. .,Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Zhibin Liu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China. .,Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Zhongjian Li
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China. .,Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Bin Yang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China. .,Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Lecheng Lei
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China. .,Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Gang Wu
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA.
| | - Yang Hou
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China. .,Institute of Zhejiang University-Quzhou, Quzhou 324000, China.,School of Biological and Chemical Engineering NingboTech University, No. 1 South Qianhu Road, Ningbo, 315100, China
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7
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Jiang K, Li K, Li S, Li Y, Li T, Liu YQ, Wang D, Ye Y. FeMo–N nanosheet arrays supported on nickel foam for efficient electrocatalytic N 2 reduction to NH 3 under ambient conditions. NEW J CHEM 2022. [DOI: 10.1039/d2nj02892a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The N content in the M–N bond is closely related to the catalytic activity and greatly improves the NRR performance.
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Affiliation(s)
- Kun Jiang
- College of Energy, Xiamen University, Xiamen 361102, China
| | - Kai Li
- College of Energy, Xiamen University, Xiamen 361102, China
| | - Shuirong Li
- College of Energy, Xiamen University, Xiamen 361102, China
| | - Yan Li
- College of Energy, Xiamen University, Xiamen 361102, China
| | - Tao Li
- College of Energy, Xiamen University, Xiamen 361102, China
| | - Yun-Quan Liu
- College of Energy, Xiamen University, Xiamen 361102, China
| | - Duo Wang
- College of Energy, Xiamen University, Xiamen 361102, China
| | - Yueyuan Ye
- College of Energy, Xiamen University, Xiamen 361102, China
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Li R, Liang J, Li T, Yue L, Liu Q, Luo Y, Hamdy MS, Sun Y, Sun X. Recent advances in MoS2-based materials for electrocatalysis. Chem Commun (Camb) 2022; 58:2259-2278. [DOI: 10.1039/d1cc04004a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The increasing energy demand and related environmental issues have drawn great attention of the world, thus necessitating the development of sustainable technologies to preserve the ecosystems for future generations. Electrocatalysts...
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