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Ge R, Huo J, Sun M, Zhu M, Li Y, Chou S, Li W. Surface and Interface Engineering: Molybdenum Carbide-Based Nanomaterials for Electrochemical Energy Conversion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e1903380. [PMID: 31532899 DOI: 10.1002/smll.201903380] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/31/2019] [Indexed: 06/10/2023]
Abstract
Molybdenum carbide (Mox C)-based nanomaterials have shown competitive performances for energy conversion applications based on their unique physicochemical properties. A large surface area and proper surface atomic configuration are essential to explore potentiality of Mox C in electrochemical applications. Although considerable efforts are made on the development of advanced Mox C-based catalysts for energy conversion with high efficiency and stability, some urgent issues, such as low electronic conductivity, low catalytic efficiency, and structural instability, have to be resolved in accordance with their application environments. Surface and interface engineering have shown bright prospects to construct highly efficient Mox C-based electrocatalysts for energy conversion including the hydrogen evolution reaction, oxygen evolution reaction, nitrogen reduction reaction, and carbon dioxide reduction reaction. In this Review, the recent progresses in terms of surface and interface engineering of Mox C-based electrocatalytic materials are summarized, including the increased number of active sites by decreasing the particle size or introducing porous or hierarchical structures and surface modification by introducing heteroatom(s), defects, carbon materials, and others electronic conductive species. Finally, the challenges and prospects for energy conversion on Mox C-based nanomaterials are discussed in terms of key performance parameters for the catalytic performance.
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Affiliation(s)
- Riyue Ge
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Juanjuan Huo
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Mingjie Sun
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Mingyuan Zhu
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Ying Li
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Shulei Chou
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, North Wollongong, New South Wales, 2522, Australia
| | - Wenxian Li
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
- Shanghai Key Laboratory of High Temperature Superconductors, Shanghai, 200444, China
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52
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Song Y, Xu B, Liao T, Guo J, Wu Y, Sun Z. Electronic Structure Tuning of 2D Metal (Hydr)oxides Nanosheets for Electrocatalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2002240. [PMID: 32851763 DOI: 10.1002/smll.202002240] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/16/2020] [Indexed: 06/11/2023]
Abstract
2D metal (hydr)oxide nanosheets have captured increasing interest in electrocatalytic applications aroused by their high specific surface areas, enriched chemically active sites, tunable physiochemical properties, etc. In particular, the electrocatalytic reactivities of materials greatly rely on their surface electronic structures. Generally speaking, the electronic structures of catalysts can be well adjusted via controlling their morphologies, defects, and heterostructures. In this Review, the latest advances in 2D metal (hydr)oxide nanosheets are first reviewed, including the applications in electrocatalysis for the hydrogen evolution reaction, oxygen reduction reaction, and oxygen evolution reaction. Then, the electronic structure-property relationships of 2D metal (hydr)oxide nanosheets are discussed to draw a picture of enhancing the electrocatalysis performances through a series of electronic structure tuning strategies. Finally, perspectives on the current challenges and the trends for the future design of 2D metal (hydr)oxide electrocatalysts with prominent catalytic activity are outlined. It is expected that this Review can shed some light on the design of next generation electrocatalysts.
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Affiliation(s)
- Yanhui Song
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
| | - Bingshe Xu
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science & Technology, Xi'an, 710021, P. R. China
| | - Ting Liao
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
- Centre for Materials Science, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
| | - Junjie Guo
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Yucheng Wu
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Ziqi Sun
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
- Centre for Materials Science, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
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53
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Karmakar A, Karthick K, Sankar SS, Kumaravel S, Ragunath M, Kundu S. Surface Decoration of DNA-Aided Amorphous Cobalt Hydroxide via Ag + Ions as Binder-Free Electrodes toward Electrochemical Oxygen Evolution Reaction. Inorg Chem 2021; 60:2680-2693. [PMID: 33534570 DOI: 10.1021/acs.inorgchem.0c03569] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Out of various available methods, generation of hydrogen by electrocatalytic water splitting is the most accepted one which consists of two half-cell reactions, viz, oxygen evolution reaction (OER) at the anode and hydrogen evolution reaction at the cathode. OER is a complex four-electron transfer process, and to sustain the spontaneous generation of hydrogen at the cathode, it is urgent to develop some earth-abundant, low-cost electrode materials. Recently, use of cobalt-based hydroxide as the electrode substrate has taken much consideration and has been fabricated over various substrates. Because of various structural disorders, internal resistance, and dependence on the electrode, the binder substrate makes their applications limited. Here, in this work, to remove structural disorder and to increase electrical conductivity, we have incorporated silver ions into amorphous Co(OH)2, which turns to be a highly active OER electrocatalyst. Also, for the first time, we have developed hydroxide-based materials by using DNA as a stabilizer, and most importantly, using DNA gives an immense opportunity to run long-term OER applications without using an external binder such as nafion. Moreover, for the first time, these DNA-based materials were coated on nickel foam mainly to eliminate the low conductive nature of Ag2O. The synthesized catalyst showed a very high OER activity, and to reach 50 mA/cm2 current density, it needs only 260 mV as overpotential. The amorphous nature of hydroxide-based materials gives a higher opportunity toward the electrolyte to bind on the surface of a catalyst to run the OER with less applied overpotentials.
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Affiliation(s)
- Arun Karmakar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Kannimuthu Karthick
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Selvasundarasekar Sam Sankar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Sangeetha Kumaravel
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Madhu Ragunath
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
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54
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Yan X, Zhuang L, Zhu Z, Yao X. Defect engineering and characterization of active sites for efficient electrocatalysis. NANOSCALE 2021; 13:3327-3345. [PMID: 33564804 DOI: 10.1039/d0nr08976a] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electrocatalysis plays a decisive role in various energy-related applications. Engineering the active sites of electrocatalysts is an important aspect to promote their catalytic performance. In particular, defect engineering provides a feasible and efficient approach to improve the intrinsic activities and increase the number of active sites in electrocatalysts. In this review, recent investigations on defect engineering of a wide range of electrocatalysts such as metal-free carbon materials, transition metal oxides, transition metal dichalcogenides and metal-organic frameworks (MOFs) will be summarized. Different defect creation strategies will be outlined, for example, heteroatom doping and removal, plasma irradiation, hydrogenation, amorphization, phase transition and reduction treatment. In addition, we will overview the commonly used advanced characterization techniques that could confirm the existence and identify the detailed structures, types and concentration of defects in electrocatalysts. The defect characterization tools are beneficial for gaining an in-depth understanding of defects on electrocatalysis and thus could reveal the structure-performance relationship. Finally, the major challenges and future development directions on defect engineering of electrocatalysts will be discussed.
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Affiliation(s)
- Xuecheng Yan
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan Campus, QLD 4111, Australia.
| | - Linzhou Zhuang
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhonghua Zhu
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Xiangdong Yao
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan Campus, QLD 4111, Australia.
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55
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Mo2C nanospheres anchored on nickel foam as self-supported electrode for high-performance hydrogen production. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2020.121825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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56
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Karmakar A, Karthick K, Kumaravel S, Sankar SS, Kundu S. Enabling and Inducing Oxygen Vacancies in Cobalt Iron Layer Double Hydroxide via Selenization as Precatalysts for Electrocatalytic Hydrogen and Oxygen Evolution Reactions. Inorg Chem 2021; 60:2023-2036. [PMID: 33480247 DOI: 10.1021/acs.inorgchem.0c03514] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Production of hydrogen by water electrolysis is an environment-friendly method and comparatively greener than other methods of hydrogen production such as stream reforming carbon, hydrolysis of metal hydride, etc. However, sluggish kinetics of the individual half-cell reactions hinders the large-scale production of hydrogen. To minimize this disadvantage, finding an appropriate, competent, and low-cost catalyst has attracted attention worldwide. Layer double hydroxide (LDH)-based materials are promising candidates for oxygen evolution reaction (OER) but not fruitful and their hydrogen evolution reaction (HER) activity is very poor, due to the lack of ionic conductivity. The inclusion of chalcogenide and generation of inherent oxygen vacancies in the lattice of LDH lead to improvement of both OER and HER activities. The presence of rich oxygen vacancies was confirmed using both the Tauc plot (1.11 eV, vacancy induction) and the photoluminescence study (peak at 426 nm, photoregeneration of oxygen). In this work, we have developed vacancy-enriched, selenized CoFe-LDH by the consequent wet-chemical and hydrothermal routes, respectively, which was used for OER and HER applications in 1 M KOH and 0.5 M H2SO4 electrolytes, respectively. For OER, the catalyst required only 251 mV overpotential to reach a 50 mA/cm2 current density with a Tafel slope value of 47 mV/dec. For HER, the catalyst demanded only 222 mV overpotential for reaching a 50 mA/cm2 current density with a Tafel slope value of 126 mV/dec. Hence, generating oxygen vacancies leads to several advantages from enhancing the exposed active sites to high probability in obtaining electrocatalytically active species and subsequent assistance in oxygen and hydrogen molecule cleavage.
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Affiliation(s)
- Arun Karmakar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Kannimuthu Karthick
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Sangeetha Kumaravel
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Selvasundarasekar Sam Sankar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
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57
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Zhao H, Yuan ZY. Design Strategies of Transition-Metal Phosphate and Phosphonate Electrocatalysts for Energy-Related Reactions. CHEMSUSCHEM 2021; 14:130-149. [PMID: 33030810 DOI: 10.1002/cssc.202002103] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/05/2020] [Indexed: 06/11/2023]
Abstract
The key challenge to developing renewable energy conversion and storage devices lies in the exploration and rational engineering of cost-effective and highly efficient electrocatalysts for various energy-related electrochemical reactions. Transition-metal phosphates and phosphonates have shown remarkable performances for these reactions based on their unique physicochemical properties. Compared with transition-metal oxides, phosphate groups in transition-metal phosphates and phosphonates show flexible coordination with diverse orientations, making them an ideal platform for designing active electrocatalysts. Although numerous efforts have been spent on the development of transition-metal phosphate and phosphonate electrocatalysts, some urgent issues, such as low intrinsic catalytic efficiency and low electronic conductivity, have to be resolved in accordance with their applications. In this Review, we focus on the design strategies of highly efficient transition-metal phosphate and phosphonate electrocatalysts, with special emphasis on the tuning of transition-metal-center coordination environment, optimization of electronic structures, increase of catalytically active site densities, and construction of heterostructures. Guided by these strategies, recently developed transition-metal phosphate and phosphonate materials have exhibited excellent activity, selectivity, and stability for various energy-related electrocatalytic reactions, showing great potential for replacing noble-metal-based catalysts in next-generation advanced energy techniques. The existing challenges and prospects regarding these materials are also presented.
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Affiliation(s)
- Hui Zhao
- School of Materials Science and Engineering, Liaocheng University, Liaocheng, 252000, Shandong, P. R. China
| | - Zhong-Yong Yuan
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), School of Materials Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
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58
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Badreldin A, Abusrafa AE, Abdel‐Wahab A. Oxygen-Deficient Cobalt-Based Oxides for Electrocatalytic Water Splitting. CHEMSUSCHEM 2021; 14:10-32. [PMID: 33053253 PMCID: PMC7839495 DOI: 10.1002/cssc.202002002] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 10/01/2020] [Indexed: 05/14/2023]
Abstract
An apparent increased interest has been recently devoted towards the previously untrodden path for anionic point defect engineering of electrocatalytic surfaces. The role of vacancy engineering in improving photo- and electrocatalytic activities of transition metal oxides (TMOs) has been widely reported. In particular, oxygen vacancy modulation on electrocatalysts of cobalt-based TMOs has seen a fresh spike of research work due to the substantial improvements they have shown towards oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Oxygen vacancy engineering is an effective scheme to quintessentially tune the electronic structure and charge transport, generate secondary active surface phases, and modify the surface adsorption/desorption behavior of reaction intermediates during water splitting. Based on contemporary efforts for inducing oxygen vacancies in a variety of cobalt oxide types, this work addresses facile and environmentally benign synthesis strategies, characterization techniques, and detailed insight into the intrinsic mechanistic modulation of electrocatalysts. It is our foresight that appropriate utilization of the principles discussed herein will aid researchers in rationally designing novel materials that can outperform noble metal-based electrocatalysts. Ultimately, future electrocatalysis implementation for selective seawater splitting is believed to depend on regulating the surface chemistry of active and stable TMOs.
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Affiliation(s)
- Ahmed Badreldin
- Chemical Engineering ProgramTexas A&M University at QatarP.O. Box23874DohaQatar
| | - Aya E. Abusrafa
- Chemical Engineering ProgramTexas A&M University at QatarP.O. Box23874DohaQatar
| | - Ahmed Abdel‐Wahab
- Chemical Engineering ProgramTexas A&M University at QatarP.O. Box23874DohaQatar
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59
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Li J, Triana CA, Wan W, Adiyeri Saseendran DP, Zhao Y, Balaghi SE, Heidari S, Patzke GR. Molecular and heterogeneous water oxidation catalysts: recent progress and joint perspectives. Chem Soc Rev 2021; 50:2444-2485. [DOI: 10.1039/d0cs00978d] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The recent synthetic and mechanistic progress in molecular and heterogeneous water oxidation catalysts highlights the new, overarching strategies for knowledge transfer and unifying design concepts.
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Affiliation(s)
- J. Li
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - C. A. Triana
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - W. Wan
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | | | - Y. Zhao
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - S. E. Balaghi
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - S. Heidari
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - G. R. Patzke
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
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60
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Wu M, Zhang G, Du L, Yang D, Yang H, Sun S. Defect Electrocatalysts and Alkaline Electrolyte Membranes in Solid-State Zinc-Air Batteries: Recent Advances, Challenges, and Future Perspectives. SMALL METHODS 2021; 5:e2000868. [PMID: 34927810 DOI: 10.1002/smtd.202000868] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/05/2020] [Indexed: 06/14/2023]
Abstract
Rechargeable zinc-air batteries (ZABs) have attracted much attention due to their promising capability for offering high energy density while maintaining a long operational lifetime. One of the biggest challenges in developing all-solid-state ZABs is to design suitable bifunctional air-electrodes, which can efficiently catalyze the key oxygen reduction reaction (ORR)/oxygen evolution reaction (OER) electrochemical processes. The other one is to develop robust electrolyte membranes with high ionic conductivity and superb water retention capability. In this review, an in-depth discussion of the challenges, mechanisms, and design strategies for the defect electrocatalyst and the electrolyte membrane in all-solid-state ZABs will be offered. In particular, the crucial defect engineering strategies to tune the ORR/OER catalysts are summarized, including direct controllable strategies: 1) atomically dispersed metal sites control, 2) vacancy defects control, and 3) lattice-strain control, and the indirect strategies: 4) crystallographic structure control and 5) metal-carbon support interaction control. Moreover, the most recent progress in designing electrolyte membranes, including polyvinyl alcohol-based membranes and gel polymer electrolyte membranes, is presented. Finally, the perspectives are proposed for rational design and fabrication of the desired air electrode and electrolyte membrane to improve the performance and prolong the lifetime of all-solid-state ZABs.
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Affiliation(s)
- Mingjie Wu
- Institut National de la Recherche Scientifique (INRS)-Énergie Matériaux et Télécommunications, Varennes, Quebec, J3X 1S2, Canada
| | - Gaixia Zhang
- Institut National de la Recherche Scientifique (INRS)-Énergie Matériaux et Télécommunications, Varennes, Quebec, J3X 1S2, Canada
| | - Lei Du
- Institut National de la Recherche Scientifique (INRS)-Énergie Matériaux et Télécommunications, Varennes, Quebec, J3X 1S2, Canada
| | - Dachi Yang
- Engineering Research Center of Thin Film Optoelectronics Technology, Ministry of Education and College of Electronic Information and Optical Engineering, Nankai University, Tianjin, 300350, China
| | - Huaming Yang
- Department of Inorganic Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Shuhui Sun
- Institut National de la Recherche Scientifique (INRS)-Énergie Matériaux et Télécommunications, Varennes, Quebec, J3X 1S2, Canada
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61
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Chen CJ, Yeh CY, Chen CH, Jena A, Wei DH, Chang H, Hu SF, Liu RS. Molybdenum Tungsten Disulfide with a Large Number of Sulfur Vacancies and Electronic Unoccupied States on Silicon Micropillars for Solar Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2020; 12:54671-54682. [PMID: 33242954 DOI: 10.1021/acsami.0c15905] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hydrogen energy is a promising alternative for fossil fuels because of its high energy density and carbon-free emission. Si is an ideal light absorber used in solar water splitting to produce H2 gas because of its small band gap, appropriate conduction band position, and high theoretical photocurrent. However, the overpotential required to drive the photoelectrochemical (PEC) hydrogen evolution reaction (HER) on bare Si electrodes is severely high owing to its sluggish kinetics. Herein, a molybdenum tungsten disulfide (MoS2-WS2) composite decorated on a Si photoabsorber is used as a cocatalyst to accelerate HER kinetics and enhance PEC performance. This MoS2-WS2 hybrid showed superior catalytic activity compared with pristine MoS2 or WS2. The optimal MoS2-WS2/Si electrode delivered a photocurrent of -25.9 mA/cm2 at 0 V (vs reversible hydrogen electrode). X-ray absorption spectroscopy demonstrated that MoS2-WS2 possessed a high hole concentration of unoccupied electronic states in the MoS2 component, which could promote to accept large amounts of carriers from the Si photoabsorber. Moreover, a large number of sulfur vacancies are generated in the MoS2 constituent of this hybrid cocatalyst. These sulfur defects served as HER active sites to boost the catalytic efficiency. Besides, the TiO2-protective MoS2-WS2/Si photocathode maintained a current density of -15.0 mA/cm2 after 16 h of the photocatalytic stability measurement.
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Affiliation(s)
- Chih-Jung Chen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chia-Yu Yeh
- Department of Physics, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Chia-Hsien Chen
- Department of Mechanical Engineering and Graduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Anirudha Jena
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Department of Mechanical Engineering and Graduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Da-Hua Wei
- Department of Mechanical Engineering and Graduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Ho Chang
- Department of Mechanical Engineering and Graduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Shu-Fen Hu
- Department of Physics, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Ru-Shi Liu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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62
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Ahmed AAA. Layered Double Hydroxides Applications in the High-Performance Magnetic Nanomaterials. INTERNATIONAL JOURNAL OF NANOSCIENCE 2020. [DOI: 10.1142/s0219581x1950039x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Layered double hydroxides (LDHs), which is related to magnetic nanomaterials’ have promising applications due to their unique structural and chemical properties. The easy tunability of cationic metals without changing the LDH structure as well as anion exchange features of LDH interlayer make them potential applications in supercapacitors, batteries, catalysis, water splitting, etc. Moreover, due to the high dispersion of active compounds in the matrix of LDH layers, LDHs have been used to construct various nanostructures such as nanoparticles, 2D monolayer nanosheets and 3D hierarchical’ which are valued in wide nanotechnological applications. Magnetic nanomaterials are an important research area because they have been applied to a wide range of disciplines such as biotechnology, data storage, magnetic fluids, magnetic resonance imaging, environmental remediation and catalysis. LDHs as starting materials including Ni, Fe or/and Co, can be used as magnetic nanomaterials. The combination between LDHs and magnetic nanostructures has improved the magnetic properties of those materials, hence can be used in more applications.
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63
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Wang Y, Liang Z, Zheng H, Cao R. Recent Progress on Defect‐rich Transition Metal Oxides and Their Energy‐Related Applications. Chem Asian J 2020; 15:3717-3736. [DOI: 10.1002/asia.202000925] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/23/2020] [Indexed: 02/03/2023]
Affiliation(s)
- Yanzhi Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 P. R. China
| | - Zuozhong Liang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 P. R. China
| | - Haoquan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 P. R. China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 P. R. China
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Keerthana S, Rani BJ, Yuvakkumar R, Ravi G, Hong SI, Saravanakumar B, Velauthapillai D, Al‐Mohaimeed AM, Algarni TS. Electrochemical Oxygen Evolution Reaction Activity of Tin Sulfide Nanostructures. ChemistrySelect 2020. [DOI: 10.1002/slct.202002495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Rathinam Yuvakkumar
- Department of Physics Alagappa University Karaikudi 630 003, Tamil Nadu India
| | - Ganesan Ravi
- Department of Physics Alagappa University Karaikudi 630 003, Tamil Nadu India
| | - Sun Ig Hong
- Chungnam National University Daejeon, 305–764 South Korea
| | | | - Dhayalan Velauthapillai
- Faculty of Engineering and Science Western Norway University of Applied Sciences Bergen 5063 Norway
| | - Amal M. Al‐Mohaimeed
- Department of Chemistry College of Science King Saud University P.O. Box 22452 Riyadh 11495 Saudi Arabia
| | - Tahani Saad Algarni
- Department of Chemistry College of Science King Saud University P.O. Box 22452 Riyadh 11495 Saudi Arabia
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Badreldin A, Abusrafa AE, Abdel-Wahab A. Oxygen-deficient perovskites for oxygen evolution reaction in alkaline media: a review. EMERGENT MATERIALS 2020; 3:567-590. [PMID: 0 DOI: 10.1007/s42247-020-00123-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 09/03/2020] [Indexed: 05/26/2023]
Abstract
AbstractOxygen vacancies in complex metal oxides and specifically in perovskites are demonstrated to significantly enhance their electrocatalytic activities due to facilitating a degree of control in the material’s intrinsic properties. The reported enhancement in intrinsic OER activity of oxygen-deficient perovskites surfaces has inspired their fabrication via a myriad of schemes. Oxygen vacancies in perovskites are amongst the most favorable anionic or Schottky defects to be induced due to their low formation energies. This review discusses recent efforts for inducing oxygen vacancies in a multitude of perovskites, including facile and environmentally benign synthesis strategies, characterization techniques, and detailed insight into the intrinsic mechanistic modulation of perovskite electrocatalysts. Experimental, analytical, and computational techniques dedicated to the understanding of the improvement of OER activities upon oxygen vacancy induction are summarized in this work. The identification and utilization of intrinsic activity descriptors for the modulation of configurational structure, improvement in bulk charge transport, and favorable inflection of the electronic structure are also discussed. It is our foresight that the approaches, challenges, and prospects discussed herein will aid researchers in rationally designing highly active and stable perovskites that can outperform noble metal-based OER electrocatalysts.
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Zheng X, Jia G, Fan G, Luo W, Li Z, Zou Z. Modulation of Disordered Coordination Degree Based on Surface Defective Metal-Organic Framework Derivatives toward Boosting Oxygen Evolution Electrocatalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2003630. [PMID: 32964633 DOI: 10.1002/smll.202003630] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/11/2020] [Indexed: 06/11/2023]
Abstract
Seeking potential electrocatalysts with both large-scale application and robust activity for the oxygen evolution reaction allows for no delay. Herein, a squarate-based metal-organic framework (MOF) ([Co3 (C4 O4 )2 (OH)2 ]⋅3H2 O) is reported for electrocatalytic water oxidation. A facile, green, and low-cost strategy is proposed to introduce defects by not only rationally breaking CoO bonds to form defective coordination environment and electronic reconfiguration, but also systematically modulates defect concentration to optimize electrochemical performance. As a result, the post-treated surface defective MOF derivative (Co-MOF-3h) achieves a current density of 50 mA cm-2 at an overpotential of 380 mV, owing to larger active surface area, more opened active sites, and favorable conducting channels. Finally, density functional theory calculations have further validated the effect of defective coordination in regard to electronic structure for electrocatalysts. This study delivers inspirations in defect engineering and is in favor of developing high-efficiency electrocatalysts.
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Affiliation(s)
- Xinyue Zheng
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, P. R. China
| | - Gan Jia
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, P. R. China
| | - Guozheng Fan
- Bremen Center for Computational Materials Science, University of Bremen, Bremen, 28359, Germany
| | - Wenjun Luo
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, P. R. China
| | - Zhaosheng Li
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, P. R. China
| | - Zhigang Zou
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, P. R. China
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Yu F, Wang C, Li Y, Ma H, Wang R, Liu Y, Suzuki N, Terashima C, Ohtani B, Ochiai T, Fujishima A, Zhang X. Enhanced Solar Photothermal Catalysis over Solution Plasma Activated TiO 2. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2000204. [PMID: 32832348 PMCID: PMC7435248 DOI: 10.1002/advs.202000204] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/25/2020] [Indexed: 05/22/2023]
Abstract
Colored wide-bandgap semiconductor oxides with abundant mid-gap states have long been regarded as promising visible light responsive photocatalysts. However, their catalytic activities are hampered by charge recombination at deep level defects, which constitutes the critical challenge to practical applications of these oxide photocatalysts. To address the challenge, a strategy is proposed here that includes creating shallow-level defects above the deep-level defects and thermal activating the migration of trapped electrons out of the deep-level defects via these shallow defects. A simple and scalable solution plasma processing (SPP) technique is developed to process the presynthesized yellow TiO2 with numerous oxygen vacancies (Ov), which incorporates hydrogen dopants into the TiO2 lattice and creates shallow-level defects above deep level of Ov, meanwhile retaining the original visible absorption of the colored TiO2. At elevated temperature, the SPP-treated TiO2 exhibits a 300 times higher conversion rate for CO2 reduction under solar light irradiation and a 7.5 times higher removal rate of acetaldehyde under UV light irradiation, suggesting the effectiveness of the proposed strategy to enhance the photoactivity of colored wide-bandgap oxides for energy and environmental applications.
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Affiliation(s)
- Fei Yu
- Key Laboratory of UV‐Emitting Materials and Technology of Chinese Ministry of EducationNortheast Normal UniversityChangchun130024China
| | - Changhua Wang
- Key Laboratory of UV‐Emitting Materials and Technology of Chinese Ministry of EducationNortheast Normal UniversityChangchun130024China
| | - Yingying Li
- Key Laboratory of UV‐Emitting Materials and Technology of Chinese Ministry of EducationNortheast Normal UniversityChangchun130024China
| | - He Ma
- Key Laboratory of UV‐Emitting Materials and Technology of Chinese Ministry of EducationNortheast Normal UniversityChangchun130024China
| | - Rui Wang
- Key Laboratory of UV‐Emitting Materials and Technology of Chinese Ministry of EducationNortheast Normal UniversityChangchun130024China
| | - Yichun Liu
- Key Laboratory of UV‐Emitting Materials and Technology of Chinese Ministry of EducationNortheast Normal UniversityChangchun130024China
| | - Norihiro Suzuki
- Photocatalysis International Research CenterResearch Institute for Science & TechnologyTokyo University of Science2641 YamazakiNodaChiba278‐8510Japan
| | - Chiaki Terashima
- Photocatalysis International Research CenterResearch Institute for Science & TechnologyTokyo University of Science2641 YamazakiNodaChiba278‐8510Japan
| | - Bunsho Ohtani
- Graduate School of Environmental ScienceHokkaido UniversitySapporo060‐0810Japan
| | - Tsuyoshi Ochiai
- Materials Analysis GroupKawasaki Technical Support DepartmentLocal Independent Administrative Agency Kanagawa Institute of industrial Science and Technology (KISTEC)Kanagawa213‐0012Japan
| | - Akira Fujishima
- Photocatalysis International Research CenterResearch Institute for Science & TechnologyTokyo University of Science2641 YamazakiNodaChiba278‐8510Japan
| | - Xintong Zhang
- Key Laboratory of UV‐Emitting Materials and Technology of Chinese Ministry of EducationNortheast Normal UniversityChangchun130024China
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Lin J, Wang H, Cao J, He F, Feng J, Qi J. Engineering Se vacancies to promote the intrinsic activities of P doped NiSe2 nanosheets for overall water splitting. J Colloid Interface Sci 2020; 571:260-266. [DOI: 10.1016/j.jcis.2020.03.053] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/13/2020] [Accepted: 03/14/2020] [Indexed: 11/30/2022]
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Hao Y, Huang A, Han S, Huang H, Song J, Sun X, Wang Z, Li L, Hu F, Xue J, Peng S. Plasma-Treated Ultrathin Ternary FePSe 3 Nanosheets as a Bifunctional Electrocatalyst for Efficient Zinc-Air Batteries. ACS APPLIED MATERIALS & INTERFACES 2020; 12:29393-29403. [PMID: 32490656 DOI: 10.1021/acsami.0c08133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Developing novel bifunctional electrocatalysts with advanced oxygen electrocatalytic activity is pivotal for next-generation energy-storage devices. Herein, we present ultrathin oxygen-doped FePSe3 (FePSe3-O) nanosheets by Ar/O2 plasma treatment, with remarkable surface atom reorganization. Such surface atom reorganization generates multiple crystalline-amorphous interfaces that benefit the kinetics of oxygen evolution reaction, achieving a low overpotential of only 261 mV at 10 mA cm-2 with a small Tafel slope of 41.13 mV dec-1. Density functional theory calculation indicates that oxygen doping can also modulate the electrical states at the Fermi level with a decreased band gap responsible for the enhanced electrocatalytic performance. Such unique FePSe3-O nanosheets can be further fabricated as the air cathode in rechargeable liquid zinc-air batteries (ZABs), which deliver a high open circuit potential of 1.47 V, a small charge-discharge voltage gap of 0.80 V, and good cycling stability for more than 800 circles. As a proof of concept, the flexible solid-state ZABs assembled with FePSe3-O nanosheets as cathode also display a favorable charge-discharge performance, durable stability, and good bendability. This work sheds new insights into the rational design of defect-rich ternary thiophosphate nanosheets by plasma treatment toward enhanced oxygen electrocatalysts in metal-air batteries.
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Affiliation(s)
- Yanan Hao
- Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Aijian Huang
- School of Electronics Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Silin Han
- Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Hongjiao Huang
- Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Junnan Song
- Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Xiaoli Sun
- Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Zhiguo Wang
- School of Electronics Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Linlin Li
- Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Feng Hu
- Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Jianjun Xue
- Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Shengjie Peng
- Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
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Yin H, Dou Y, Chen S, Zhu Z, Liu P, Zhao H. 2D Electrocatalysts for Converting Earth-Abundant Simple Molecules into Value-Added Commodity Chemicals: Recent Progress and Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1904870. [PMID: 31573704 DOI: 10.1002/adma.201904870] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/05/2019] [Indexed: 06/10/2023]
Abstract
The electrocatalytic conversion of earth-abundant simple molecules into value-added commodity chemicals can transform current chemical production regimes with enormous socioeconomic and environmental benefits. For these applications, 2D electrocatalysts have emerged as a new class of high-performance electrocatalyst with massive forward-looking potential. Recent advances in 2D electrocatalysts are reviewed for emerging applications that utilize naturally existing H2 O, N2 , O2 , Cl- (seawater) and CH4 (natural gas) as reactants for nitrogen reduction (N2 → NH3 ), two-electron oxygen reduction (O2 → H2 O2 ), chlorine evolution (Cl- → Cl2 ), and methane partial oxidation (CH4 → CH3 OH) reactions to generate NH3 , H2 O2 , Cl2 , and CH3 OH. The unique 2D features and effective approaches that take advantage of such features to create high-performance 2D electrocatalysts are articulated with emphasis. To benefit the readers and expedite future progress, the challenges facing the future development of 2D electrocatalysts for each of the above reactions and the related perspectives are provided.
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Affiliation(s)
- Huajie Yin
- Centre for Clean Environment and Energy, Griffith University, Southport, Queensland, 4222, Australia
| | - Yuhai Dou
- Centre for Clean Environment and Energy, Griffith University, Southport, Queensland, 4222, Australia
| | - Shan Chen
- Centre for Clean Environment and Energy, Griffith University, Southport, Queensland, 4222, Australia
| | - Zhengju Zhu
- Centre for Clean Environment and Energy, Griffith University, Southport, Queensland, 4222, Australia
| | - Porun Liu
- Centre for Clean Environment and Energy, Griffith University, Southport, Queensland, 4222, Australia
| | - Huijun Zhao
- Centre for Clean Environment and Energy, Griffith University, Southport, Queensland, 4222, Australia
- Centre for Environmental and Energy Nanomaterials, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
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Cai Q, Hong W, Jian C, Liu W. A high-performance silicon photoanode enabled by oxygen vacancy modulation on NiOOH electrocatalyst for water oxidation. NANOSCALE 2020; 12:7550-7556. [PMID: 32227016 DOI: 10.1039/d0nr00921k] [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
Silicon (Si) is an attractive photoanode material for photoelectrochemical (PEC) water splitting. However, Si photoanode towards the oxygen evolution reaction (OER) is highly challenged due to its poor stability and catalytic inactivity. The integration of highly active electrocatalysts with Si photoanodes has been considered to be an effective strategy to improve their OER performance by accelerating the reaction kinetics and inhibiting Si photocorrosion. In this work, ultra-small NiFe nanoparticles are deposited onto the n-Si/Ni/NiOOH surface to improve the activity and stability of Si photoanodes by engineering the electrocatalyst and Si interface. Ultra-small NiFe nanoparticles can introduce oxygen vacancies via modulating the local electronic structure of Ni hosts in NiOOH electrocatalysts for fast charge separation and transfer. Besides, NiFe nanoparticles can also serve as a co-catalyst exposing more active sites and as a protection layer preventing Si photocorrosion. The as-prepared n-Si/Ni/NiOOH/NiFe photoanode exhibits excellent OER activity with an onset potential of 1.0 V versus reversible hydrogen electrode (RHE) and a photocurrent density of ∼25.2 mA cm-2 at 1.23 V versus RHE. This work provides a promising approach to design high-performance Si photoanodes by surface electrocatalyst engineering.
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Affiliation(s)
- Qian Cai
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China.
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Wu J, Wang D, Wan S, Liu H, Wang C, Wang X. An Efficient Cobalt Phosphide Electrocatalyst Derived from Cobalt Phosphonate Complex for All-pH Hydrogen Evolution Reaction and Overall Water Splitting in Alkaline Solution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1900550. [PMID: 30908837 DOI: 10.1002/smll.201900550] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/25/2019] [Indexed: 06/09/2023]
Abstract
The development of low-cost and highly efficient electrocatalysts via an eco-friendly synthetic method is of great significance for future renewable energy storage and conversion systems. Herein, cobalt phosphides confined in porous P-doped carbon materials (Co-P@PC) are fabricated by calcinating the cobalt-phosphonate complex formed between 1-hydroxyethylidenediphosphonic acid and Co(NO3 )2 in alkaline solution. The P-containing ligand in the complex acts as the carbon source as well as in situ phosphorizing agent for the formation of cobalt phosphides and doping P element into carbon material upon calcination. The Co-P@PC exhibits high activity for all-pH hydrogen evolution reaction (overpotentials of 72, 85, and 76 mV in acidic, neutral, and alkaline solutions at the current density of 10 mA cm-2 ) and oxygen evolution reaction in alkaline solution (an overpotential of 280 mV at the current density of 10 mA cm-2 ). The alkaline electrolyzer assembled from the Co-P@PC electrodes delivers the current density of 10 mA cm-2 at the voltage of 1.60 V with a durability of 60 h. The excellent activity and long-term stability of the Co-P@PC derives from the synergistic effect between the active cobalt phosphides and the porous P-doped carbon matrix.
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Affiliation(s)
- Jiadong Wu
- Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin Key Laboratory of Advanced Functional Porous Materials, Tianjin University of Technology, Tianjin, 300384, China
| | - Depeng Wang
- Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin Key Laboratory of Advanced Functional Porous Materials, Tianjin University of Technology, Tianjin, 300384, China
| | - Shuao Wan
- Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin Key Laboratory of Advanced Functional Porous Materials, Tianjin University of Technology, Tianjin, 300384, China
| | - Huiling Liu
- Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin Key Laboratory of Advanced Functional Porous Materials, Tianjin University of Technology, Tianjin, 300384, China
| | - Cheng Wang
- Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin Key Laboratory of Advanced Functional Porous Materials, Tianjin University of Technology, Tianjin, 300384, China
| | - Xun Wang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
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Cai M, Liu W, Luo X, Chen C, Pan R, Zhang H, Zhong M. Three-Dimensional and In Situ-Activated Spinel Oxide Nanoporous Clusters Derived from Stainless Steel for Efficient and Durable Water Oxidation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13971-13981. [PMID: 32115941 DOI: 10.1021/acsami.0c00701] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Developing cost-effective and highly efficient oxygen evolution reaction (OER) electrocatalysts based on earth-abundant elements is vital to hydrogen production from electrocatalytic water splitting. Herein, a three-dimensional and in situ-activated electrocatalyst derived from stainless steel is successfully fabricated via a two-step laser direct writing strategy. The electrocatalyst appears in the form of nanoparticle-stacked porous clusters on the multiscale stainless steel with irregular microcone arrays and microspheres, which exposes more active sites and facilitates the mass transport. Especially, the clusters undergoe a self-optimizing morphological and compositional reconfiguration induced by the leaching of Cr species under OER conditions for favorable charge transfer and enhanced intrinsic catalytic activity. As a result, the in situ-activated, Ni/Cr-doped Fe3O4 electrocatalyst exhibits an outstanding OER performance with a small overpotential of 262 mV to reach 10 mA cm-2, a low Tafel slope of 35.0 mV dec-1, and excellent long-term stability of 120 h, among the best spinel Fe-rich OER electrocatalysts. Finally, we also verify the feasibility of the affordable and efficient electrocatalyst coupled with the commercial Ni cathode in the practical water electrolysis. This work may open up a new avenue to design nanostructured metal oxides for various energy applications and beyond.
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Affiliation(s)
- Mingyong Cai
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Weijian Liu
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Xiao Luo
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Changhao Chen
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Rui Pan
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Hongjun Zhang
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Minlin Zhong
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
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Liu S, Che C, Jing H, Zhao J, Mu X, Zhang S, Chen C, Mu S. Phosphorus-triggered synergy of phase transformation and chalcogenide vacancy migration in cobalt sulfide for an efficient oxygen evolution reaction. NANOSCALE 2020; 12:3129-3134. [PMID: 31965124 DOI: 10.1039/c9nr09203j] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Introduction of surface defects and phase control engineering in the electrocatalytic system of overall water splitting has played a crucial role in significantly enhancing its electrocatalytic activity toward the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) in water splitting, but the relationship between structure and electrocatalysis is still elusive. Herein, we report a solid-liquid method to induce surface reorganization (formation of a chalcogenide layer with rich chalcogenide vacancies) and phase transformation (Co9S8-to-Co3S4) simultaneously on cobalt chalcogenide. Featuring a uniform 2D morphology and the in situ formation of sulfur (S) vacancies, in a 0.1 M KOH solution, it exhibits a low overpotential of 288 mV vs. RHE at 10 mA cm-2, a low Tafel slope of 43.4 mV dec-1, and strong cycling stability (35 h), outperforming commercial RuO2 and most reported OER electrocatalysts. In addition, we also investigate the OER activity of the Co-S-P electrode in 1.0 M KOH solutions. Co0.37S0.38P0.02 NSs only need 257 mV to reach a current density of 10 mA cm-2. Meanwhile, the Tafel slope of Co0.37S0.38P0.02 NSs (44.0 mV dec-1) is lower than those of other recently reported electrocatalysts. Also, it shows high HER electrocatalytic activity in alkaline and acidic solutions. Finally, the Co0.37S0.38P0.02 electrode is used as a cathode and anode simultaneously for overall water splitting, which merely requires a cell voltage of 1.59 V at 10 mA cm-2 with excellent stability (40 h).
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Affiliation(s)
- Suli Liu
- Key Laboratory of Advanced Functional Materials of Nanjing, Nanjing Xiaozhuang University, Nanjing 211171, China.
| | - Chenjing Che
- Key Laboratory of Advanced Functional Materials of Nanjing, Nanjing Xiaozhuang University, Nanjing 211171, China.
| | - Haiyan Jing
- Key Laboratory of Advanced Functional Materials of Nanjing, Nanjing Xiaozhuang University, Nanjing 211171, China.
| | - Jun Zhao
- Key Laboratory of Advanced Functional Materials of Nanjing, Nanjing Xiaozhuang University, Nanjing 211171, China.
| | - Xueqin Mu
- Key Laboratory of Advanced Functional Materials of Nanjing, Nanjing Xiaozhuang University, Nanjing 211171, China.
| | - Sudi Zhang
- Key Laboratory of Advanced Functional Materials of Nanjing, Nanjing Xiaozhuang University, Nanjing 211171, China.
| | - Changyun Chen
- Key Laboratory of Advanced Functional Materials of Nanjing, Nanjing Xiaozhuang University, Nanjing 211171, China.
| | - Shichun Mu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
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Zong W, Lian R, He G, Guo H, Ouyang Y, Wang J, Lai F, Miao YE, Rao D, Brett D, Liu T. Vacancy engineering of group VI anions in NiCo2A4 (A = O, S, Se) for efficient hydrogen production by weakening the shackles of hydronium ion. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135515] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Luo X, Wei X, Zhong H, Wang H, Wu Y, Wang Q, Gu W, Gu M, Beckman SP, Zhu C. Single-Atom Ir-Anchored 3D Amorphous NiFe Nanowire@Nanosheets for Boosted Oxygen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2020; 12:3539-3546. [PMID: 31891249 DOI: 10.1021/acsami.9b17476] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The establishment of advanced electrocatalysts with remarkable performance and cost effectiveness for the oxygen evolution reaction (OER) is an emerging need for the production of clean hydrogen fuel. In this work, three-dimensional (3D) amorphous NiFeIrx/Ni core-shell nanowire@nanosheets (NW@NSs) are successfully synthesized through a facile one-step reduction process with atomically isolated Ir atoms anchored on an NiFe-based core. By taking advantage of their unique structure and composition, the resultant NiFeIrx/Ni NW@NSs have a high electrocatalytic activity for OER which can deliver current densities of 10 and 100 mA cm-2 at overpotentials as low as 200 and 250 mV in 1 M KOH, respectively. It is worth noting that NiFeIrx/Ni NW@NSs exhibit outstanding long-term stability over 12 h at a current density of 10 mA cm-2. Theoretical calculations also reveal that the intrinsic activity of the resultant NiFeIrx/Ni NW@NSs is significantly enhanced upon the addition of Ir single atoms, highlighting the critical role of the synergistic effect between Ir single atoms and the support. Due to their easy synthesis and superior electrochemical performance, the newly designed nanostructures may find promising potential applications in water splitting and other related fields.
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Affiliation(s)
- Xin Luo
- College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Xiaoqian Wei
- College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Hong Zhong
- School of Mechanical and Materials Engineering , Washington State University , Pullman , Washington 99164 , United States
| | - Hengjia Wang
- College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Yu Wu
- College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Qi Wang
- Department of Materials Science and Engineering , Southern University of Science and Technology , Shenzhen 518055 , P. R. China
| | - Wenling Gu
- College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Meng Gu
- Department of Materials Science and Engineering , Southern University of Science and Technology , Shenzhen 518055 , P. R. China
| | - Scott P Beckman
- School of Mechanical and Materials Engineering , Washington State University , Pullman , Washington 99164 , United States
| | - Chengzhou Zhu
- College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
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Yang M, Feng F, Wang K, Li S, Huang X, Gong L, Ma L, Li R. Synthesis of Metal Phosphide Nanoparticles Supported on Porous N-Doped Carbon Derived from Spirulina for Universal-pH Hydrogen Evolution. CHEMSUSCHEM 2020; 13:351-359. [PMID: 31721453 DOI: 10.1002/cssc.201902920] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Indexed: 05/27/2023]
Abstract
Transition metal phosphides (TMPs) are regarded as highly active electrocatalysts for the hydrogen evolution reaction (HER). However, traditional synthetic routes usually use expensive and dangerous precursors as P donors. The development of a low-cost and ecofriendly method for the synthesis of TMPs is significant for sustainable energy development. Herein, cobalt phosphides anchored on or embedded in a spirulina-derived porous N-doped carbon matrix (Co2 P/NC) was fabricated by two-step hydrothermal treatment and carbonization method, which utilized the intrinsic C, N, and P of biomass cleverly as the sources of C, N, and P, respectively. As a result of the high surface area and porosity that enhance the mass-transfer dynamics, Co2 P/NC shows good electrocatalytic activity at all pH values in the HER. This work not only provides a facile and effective method for the fabrication of TMP nanoparticles loaded onto carbon materials but also opens a new strategy for the utilization of the intrinsic ingredients of biomass for the preparation of other functional electrocatalysts.
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Affiliation(s)
- Ming Yang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Fan Feng
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Kaizhi Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Shuwen Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xiaokang Huang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Li Gong
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Lei Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Rong Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
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79
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Chi K, Tian X, Wang Q, Zhang Z, Zhang X, Zhang Y, Jing F, Lv Q, Yao W, Xiao F, Wang S. Oxygen vacancies engineered CoMoO4 nanosheet arrays as efficient bifunctional electrocatalysts for overall water splitting. J Catal 2020. [DOI: 10.1016/j.jcat.2019.10.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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80
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Li YB, Liu YP, Wang J, Guo YL, Chu K. Plasma-engineered NiO nanosheets with enriched oxygen vacancies for enhanced electrocatalytic nitrogen fixation. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01133a] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Plasma technique can readily create the enriched oxygen vacancies which enable the NiO to be an active and durable catalyst for electrocatalytic fixation of N2 to NH3.
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Affiliation(s)
- Yu-biao Li
- School of Materials Science and Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Ya-ping Liu
- School of Materials Science and Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Jing Wang
- School of Materials Science and Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Ya-li Guo
- School of Materials Science and Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Ke Chu
- School of Materials Science and Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
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81
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Liu Y, Yu Y, Mu Z, Wang Y, Ali U, Jing S, Xing S. Urea-assisted enhanced electrocatalytic activity of MoS2–Ni3S2 for overall water splitting. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00634c] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Urea-assisted enhanced electrocatalytic activity of MoS2–Ni3S2 as a bifunctional electrocatalyst for overall water splitting.
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Affiliation(s)
- Yuqi Liu
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Yue Yu
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Zhongcheng Mu
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Yuanhong Wang
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Usman Ali
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Shengyu Jing
- School of Information and Control Engineering
- China University of Mining and Technology
- Xuzhou
- China
| | - Shuangxi Xing
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
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82
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Liang X, Qian J, Liu Y, Zhang Z, Gao D. Efficient electrocatalyst of α-Fe2O3 nanorings for oxygen evolution reaction in acidic conditions. RSC Adv 2020; 10:29077-29081. [PMID: 35521123 PMCID: PMC9055951 DOI: 10.1039/d0ra04262e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 07/30/2020] [Indexed: 11/21/2022] Open
Abstract
Large-scale application of sustainable energy devices urgently requires cost-effective electrocatalysts to overcome the sluggish kinetics related to the oxygen evolution reaction (OER) under acidic conditions. Here, we first report the highly efficient electrocatalytic characteristics of α-Fe2O3 nanorings (NRs), which exhibits prominent OER electrocatalytic activity with lower overpotential of 1.43 V at 10 mA cm−2 and great stability in 1 M HCl, surpassing the start-of-the art Ir/C electrocatalyst. The significantly optimized OER activity of the α-Fe2O3 NRs mainly attributes to the synergistic effect of the excellent electrical conductivity and a large effective active surface because of their unique nanoring structure, disordered surface, and the dynamic stability of α-Fe2O3 NRs in acidic conditions. α-Fe2O3 NRs is obtained for OER with lower small overpotential and great stability in 1 M HCl, surpassing Ir/C electrocatalyst.![]()
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Affiliation(s)
- Xiaolei Liang
- Key Laboratory for Gynecologic Oncology Gansu Province
- Department of Obstetrics and Gynecology
- The First Hospital of Lanzhou University
- China
- Key Laboratory for Magnetism and Magnetic Materials of MOE
| | - Jinmei Qian
- Key Laboratory for Magnetism and Magnetic Materials of MOE
- Key Laboratory of Special Function Materials and Structure Design of MOE
- Lanzhou University
- Lanzhou 730000
- China
| | - Yonggang Liu
- Key Laboratory for Magnetism and Magnetic Materials of MOE
- Key Laboratory of Special Function Materials and Structure Design of MOE
- Lanzhou University
- Lanzhou 730000
- China
| | - Zhengmei Zhang
- Key Laboratory for Magnetism and Magnetic Materials of MOE
- Key Laboratory of Special Function Materials and Structure Design of MOE
- Lanzhou University
- Lanzhou 730000
- China
| | - Daqiang Gao
- Key Laboratory for Magnetism and Magnetic Materials of MOE
- Key Laboratory of Special Function Materials and Structure Design of MOE
- Lanzhou University
- Lanzhou 730000
- China
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83
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Choi S, Park Y, Yang H, Jin H, Tomboc GM, Lee K. Vacancy-engineered catalysts for water electrolysis. CrystEngComm 2020. [DOI: 10.1039/c9ce01883b] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Vacancy-engineered electrocatalysts showing various effects on improving performances toward water electrolysis.
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Affiliation(s)
- Songa Choi
- Department of Chemistry and Research Institute for National Sciences
- Korea University
- Seoul 02841
- Republic of Korea
| | - Yeji Park
- Department of Chemistry and Research Institute for National Sciences
- Korea University
- Seoul 02841
- Republic of Korea
| | - Heesu Yang
- Department of Chemistry and Research Institute for National Sciences
- Korea University
- Seoul 02841
- Republic of Korea
| | - Haneul Jin
- Department of Chemistry and Research Institute for National Sciences
- Korea University
- Seoul 02841
- Republic of Korea
| | - Gracita M. Tomboc
- Department of Chemistry and Research Institute for National Sciences
- Korea University
- Seoul 02841
- Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for National Sciences
- Korea University
- Seoul 02841
- Republic of Korea
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84
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Li J, Chu D, Dong H, Baker DR, Jiang R. Boosted Oxygen Evolution Reactivity by Igniting Double Exchange Interaction in Spinel Oxides. J Am Chem Soc 2019; 142:50-54. [DOI: 10.1021/jacs.9b10882] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jiangtian Li
- U.S. Army Research Laboratory, 2800 Powder Mill Road, Adelphi, Maryland 20783, United States
| | - Deryn Chu
- U.S. Army Research Laboratory, 2800 Powder Mill Road, Adelphi, Maryland 20783, United States
| | - Hong Dong
- U.S. Army Research Laboratory, 2800 Powder Mill Road, Adelphi, Maryland 20783, United States
| | - David R. Baker
- U.S. Army Research Laboratory, 2800 Powder Mill Road, Adelphi, Maryland 20783, United States
| | - Rongzhong Jiang
- U.S. Army Research Laboratory, 2800 Powder Mill Road, Adelphi, Maryland 20783, United States
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85
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Ye B, Jiang R, Yu Z, Hou Y, Huang J, Zhang B, Huang Y, Zhang Y, Zhang R. Pt (1 1 1) quantum dot engineered Fe-MOF nanosheet arrays with porous core-shell as an electrocatalyst for efficient overall water splitting. J Catal 2019. [DOI: 10.1016/j.jcat.2019.09.038] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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86
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Jin Z, Lv J, Jia H, Liu W, Li H, Chen Z, Lin X, Xie G, Liu X, Sun S, Qiu HJ. Nanoporous Al-Ni-Co-Ir-Mo High-Entropy Alloy for Record-High Water Splitting Activity in Acidic Environments. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1904180. [PMID: 31596058 DOI: 10.1002/smll.201904180] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/18/2019] [Indexed: 06/10/2023]
Abstract
Ir-based binary and ternary alloys are effective catalysts for the electrochemical oxygen evolution reaction (OER) in acidic solutions. Nevertheless, decreasing the Ir content to less than 50 at% while maintaining or even enhancing the overall electrocatalytic activity and durability remains a grand challenge. Herein, by dealloying predesigned Al-based precursor alloys, it is possible to controllably incorporate Ir with another four metal elements into one single nanostructured phase with merely ≈20 at% Ir. The obtained nanoporous quinary alloys, i.e., nanoporous high-entropy alloys (np-HEAs) provide infinite possibilities for tuning alloy's electronic properties and maximizing catalytic activities owing to the endless element combinations. Particularly, a record-high OER activity is found for a quinary AlNiCoIrMo np-HEA. Forming HEAs also greatly enhances the structural and catalytic durability regardless of the alloy compositions. With the advantages of low Ir loading and high activity, these np-HEA catalysts are very promising and suitable for activity tailoring/maximization.
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Affiliation(s)
- Zeyu Jin
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Juan Lv
- Department of Precision Instrument, Tsinghua University, Beijing, 100084, China
| | - Henglei Jia
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China
| | - Weihong Liu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Huanglong Li
- Department of Precision Instrument, Tsinghua University, Beijing, 100084, China
| | - Zuhuang Chen
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Xi Lin
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Guoqiang Xie
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Xingjun Liu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
- Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials, Harbin Institute of Technology, Shenzhen, 518055, China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Shuhui Sun
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, Varennes, QC, J3X 1S2, Canada
| | - Hua-Jun Qiu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
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87
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Zhu J, Hu L, Zhao P, Lee LYS, Wong KY. Recent Advances in Electrocatalytic Hydrogen Evolution Using Nanoparticles. Chem Rev 2019; 120:851-918. [DOI: 10.1021/acs.chemrev.9b00248] [Citation(s) in RCA: 946] [Impact Index Per Article: 189.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jing Zhu
- Institute of Materials, China Academy of Engineering Physics, No. 9, Huafengxincun, Jiangyou City, Sichuan Province 621908, P. R. China
| | - Liangsheng Hu
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong 515063, P. R. China
| | - Pengxiang Zhao
- Institute of Materials, China Academy of Engineering Physics, No. 9, Huafengxincun, Jiangyou City, Sichuan Province 621908, P. R. China
| | - Lawrence Yoon Suk Lee
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
| | - Kwok-Yin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
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88
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Shi R, Zhao Y, Waterhouse GIN, Zhang S, Zhang T. Defect Engineering in Photocatalytic Nitrogen Fixation. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03246] [Citation(s) in RCA: 195] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Run Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yunxuan Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Shuai Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tierui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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89
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Wang Y, Huang L, Ai L, Wang M, Fan Z, Jiang J, Sun H, Wang S. Ultrathin nickel-cobalt inorganic-organic hydroxide hybrid nanobelts as highly efficient electrocatalysts for oxygen evolution reaction. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.06.079] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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90
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Guiet A, Huan TN, Payen C, Porcher F, Mougel V, Fontecave M, Corbel G. Copper-Substituted NiTiO 3 Ilmenite-Type Materials for Oxygen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:31038-31048. [PMID: 31379151 DOI: 10.1021/acsami.9b08535] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Single Ni1-xCuxTiO3 (0.05 ≤ x ≤ 0.2) Ilmenite-type phases were successfully prepared through a solid-state reaction route using divalent metal nitrates as precursors and characterized. Their electrocatalytic performance for oxygen evolution reaction (OER) in alkaline media is presented. The Cu content was determined (0.05 ≤ x ≤ 0.2) by X-ray diffraction. A thorough powder neutron diffraction study was carried out to identify the subtle changes caused by copper substitution in the structure of NiTiO3. The evolution of the optical and magnetic properties with the Cu content was also investigated on the raw micrometer-sized particles. A reduction in particle size down to ≈15 nm was achieved by ball-milling the raw powder prepared by the solid-state reaction. The best catalytic activity for OER was obtained for nanometer-sized particles of Ni0.8Cu0.2TiO3 drop-casted on the Cu plate. For this electrode, a current density of 10 mA cm-2 for oxygen production was generated at 345 and 470 mV applied overpotentials with 1 and 0.1 M NaOH solutions as electrolytes, respectively. The catalyst retained this OER activity at 10 mA cm-2 for long-term electrolysis with a faradic efficiency of 90% for O2 production in a 0.1 M NaOH electrolyte.
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Affiliation(s)
- Amandine Guiet
- Institut des Molécules et Matériaux du Mans, UMR 6283 CNRS , Le Mans Université , Avenue Olivier Messiaen , 72085 Le Mans Cedex 9 , France
| | - Tran Ngoc Huan
- Laboratoire de Chimie des Processus Biologiques , Collège de France, UMR CNRS 8229, Sorbonne Université, PSL Research University , 11 place Marcelin Berthelot , 75005 Paris , France
| | - Christophe Payen
- Institut des Matériaux Jean Rouxel (IMN) , Université de Nantes, CNRS , 2 rue de la Houssinière , BP 32229, 44322 Nantes cedex 3 , France
| | - Florence Porcher
- Laboratoire Léon Brillouin, CEA-CNRS , 91191 Gif-sur-Yvette Cedex , France
| | - Victor Mougel
- Laboratoire de Chimie des Processus Biologiques , Collège de France, UMR CNRS 8229, Sorbonne Université, PSL Research University , 11 place Marcelin Berthelot , 75005 Paris , France
| | - Marc Fontecave
- Laboratoire de Chimie des Processus Biologiques , Collège de France, UMR CNRS 8229, Sorbonne Université, PSL Research University , 11 place Marcelin Berthelot , 75005 Paris , France
| | - Gwenaël Corbel
- Institut des Molécules et Matériaux du Mans, UMR 6283 CNRS , Le Mans Université , Avenue Olivier Messiaen , 72085 Le Mans Cedex 9 , France
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91
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Self-supported hollow Co(OH)2/NiCo sulfide hybrid nanotube arrays as efficient electrocatalysts for overall water splitting. J Solid State Electrochem 2019. [DOI: 10.1007/s10008-019-04362-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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92
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Yang Y, Yao H, Yu Z, Islam SM, He H, Yuan M, Yue Y, Xu K, Hao W, Sun G, Li H, Ma S, Zapol P, Kanatzidis MG. Hierarchical Nanoassembly of MoS 2/Co 9S 8/Ni 3S 2/Ni as a Highly Efficient Electrocatalyst for Overall Water Splitting in a Wide pH Range. J Am Chem Soc 2019; 141:10417-10430. [PMID: 31244177 DOI: 10.1021/jacs.9b04492] [Citation(s) in RCA: 243] [Impact Index Per Article: 48.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The design of low-cost yet high-efficiency electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) over a wide pH range is highly challenging. We now report a hierarchical co-assembly of interacting MoS2 and Co9S8 nanosheets attached on Ni3S2 nanorod arrays which are supported on nickel foam (NF). This tiered structure endows high performance toward HER and OER over a very broad pH range. By adjusting the molar ratio of the Co:Mo precursors, we have created CoMoNiS-NF- xy composites ( x: y means Co:Mo molar ratios ranging from 5:1 to 1:3) with controllable morphology and composition. The three-dimensional composites have an abundance of active sites capable of universal pH catalytic HER and OER activity. The CoMoNiS-NF-31 demonstrates the best electrocatalytic activity, giving ultralow overpotentials (113, 103, and 117 mV for HER and 166, 228, and 405 mV for OER) to achieve a current density of 10 mA cm-2 in alkaline, acidic, and neutral electrolytes, respectively. It also shows a remarkable balance between electrocatalytic activity and stability. Based on the distinguished catalytic performance of CoMoNiS-NF-31 toward HER and OER, we demonstrate a two-electrode electrolyzer performing water electrolysis over a wide pH range, with low cell voltages of 1.54, 1.45, and 1.80 V at 10 mA cm-2 in alkaline, acidic, and neutral media, respectively. First-principles calculations suggest that the high OER activity arises from electron transfer from Co9S8 to MoS2 at the interface, which alters the binding energies of adsorbed species and decreases overpotentials. Our results demonstrate that hierarchical metal sulfides can serve as highly efficient all-pH (pH = 0-14) electrocatalysts for overall water splitting.
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Affiliation(s)
- Yan Yang
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Huiqin Yao
- School of Basic Medical Sciences , Ningxia Medical University , Yinchuan 750004 , China
| | - Zihuan Yu
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Saiful M Islam
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.,Department of Chemistry, Physics and Atmospheric Sciences , Jackson State University , Jackson , Mississippi 39217 , United States
| | - Haiying He
- Department of Physics and Astronomy , Valparaiso University , Valparaiso , Indiana 46383 , United States
| | - Mengwei Yuan
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Yonghai Yue
- School of Physics and School of Chemistry , Beihang University , Beijing 100191 , China
| | - Kang Xu
- School of Physics and School of Chemistry , Beihang University , Beijing 100191 , China
| | - Weichang Hao
- School of Physics and School of Chemistry , Beihang University , Beijing 100191 , China
| | - Genban Sun
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Huifeng Li
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Shulan Ma
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of Chemistry , Beijing Normal University , Beijing 100875 , China.,Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Peter Zapol
- Materials Science Division , Argonne National Laboratory , Lemont , Illinois 60439 , United States
| | - Mercouri G Kanatzidis
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.,Materials Science Division , Argonne National Laboratory , Lemont , Illinois 60439 , United States
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93
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Xiang R, Peng L, Wei Z. Tuning Interfacial Structures for Better Catalysis of Water Electrolysis. Chemistry 2019; 25:9799-9815. [DOI: 10.1002/chem.201901168] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Rui Xiang
- Chongqing Key Laboratory of Chemical Process for Clean Energy, and Resource Utilization, School of Chemistry and Chemical EngineeringChongqing University No.55 Daxuecheng South Rd., Shapingba Chongqing 401331 P.R. China
| | - Lishan Peng
- Chongqing Key Laboratory of Chemical Process for Clean Energy, and Resource Utilization, School of Chemistry and Chemical EngineeringChongqing University No.55 Daxuecheng South Rd., Shapingba Chongqing 401331 P.R. China
| | - Zidong Wei
- Chongqing Key Laboratory of Chemical Process for Clean Energy, and Resource Utilization, School of Chemistry and Chemical EngineeringChongqing University No.55 Daxuecheng South Rd., Shapingba Chongqing 401331 P.R. China
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94
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Yang C, Zhang J, Gao G, Liu D, Liu R, Fan R, Gan S, Wang Y, Wang Y. 3D Metallic Ti@Ni 0.85 Se with Triple Hierarchy as High-Efficiency Electrocatalyst for Overall Water Splitting. CHEMSUSCHEM 2019; 12:2271-2277. [PMID: 30830725 DOI: 10.1002/cssc.201900181] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 03/01/2019] [Indexed: 06/09/2023]
Abstract
In this study, Ti@Ni0.85 Se electrodes with a triple hierarchy architecture were designed, and their applications in electrocatalytic water splitting were studied. The 3D electrode is comprised of three types of structures including the bottom square Ti mesh structure as the conductive substrate, a vertical and uniform Ni0.85 Se nanosheet arrays structure in the intermediate section, and the topmost Ni0.85 Se flower structure. This triple hierarchy architecture is binder-free, conductive, and has a particular feature of enlarged surface areas, exposing more active sites, promoting mass- and charge-transfer, and accelerating dissipation of gases generated during water electrolysis. Moreover, DFT calculations confirmed that the Ni0.85 Se possesses metallic character, which further promotes the charge transfer of the electrocatalyst. Benefiting from this special structure and metallic character, the electrode displays a superior activity of 10 mA cm-2 at 120 mV hydrogen evolution reaction overpotential and 30 mA cm-2 at 270 mV oxygen evolution reaction overpotential. By using this electrode as a bifunctional electrocatalyst, an alkali electrolyzer affords a water splitting current of 10 mA cm-2 at a cell voltage of 1.66 V.
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Affiliation(s)
- Chunming Yang
- Shen Hua Zhun Neng Resources Comprehensive Development Company Limited, Zhungeer, 010300, P. R. China
| | - Junjun Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Guimei Gao
- Shen Hua Zhun Neng Resources Comprehensive Development Company Limited, Zhungeer, 010300, P. R. China
| | - Darui Liu
- Shen Hua Zhun Neng Resources Comprehensive Development Company Limited, Zhungeer, 010300, P. R. China
| | - Ruiping Liu
- Shen Hua Zhun Neng Resources Comprehensive Development Company Limited, Zhungeer, 010300, P. R. China
| | - Ruicheng Fan
- Shen Hua Zhun Neng Resources Comprehensive Development Company Limited, Zhungeer, 010300, P. R. China
| | - Shucai Gan
- College of Chemistry, Jilin University, Changchun, 130026, P. R. China
| | - Ying Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yongwang Wang
- Shen Hua Zhun Neng Resources Comprehensive Development Company Limited, Zhungeer, 010300, P. R. China
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95
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Xiang R, Duan Y, Tong C, Peng L, Wang J, Shah SSA, Najam T, Huang X, Wei Z. Self-standing FeCo Prussian blue analogue derived FeCo/C and FeCoP/C nanosheet arrays for cost-effective electrocatalytic water splitting. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.170] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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96
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Munuera JM, Paredes JI, Villar-Rodil S, García-Dalí S, Castro-Muñiz A, Martínez-Alonso A, Tascón JMD. A direct route to activated two-dimensional cobalt oxide nanosheets for electrochemical energy storage, catalytic and environmental applications. J Colloid Interface Sci 2019; 539:263-276. [PMID: 30590234 DOI: 10.1016/j.jcis.2018.12.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 12/13/2018] [Accepted: 12/14/2018] [Indexed: 11/29/2022]
Abstract
Two-dimensional Co3O4 nanosheets have emerged as attractive materials for use in a number of relevant technological applications. To exhibit a competitive performance in such uses, however, their structure needs to be activated, which is frequently accomplished via post-synthesis reduction strategies that introduce oxygen vacancies and increase the number of active Co(II) sites. Here, we investigate a direct route for the synthesis of activated Co3O4 nanosheets that avoids reduction post-treatments, yielding materials with a high potential towards energy- and environment-related applications. The synthesis relied on an interim amorphous cobalt oxide material with nanosheet morphology, which upon calcination afforded Co3O4 nanosheets having Co(II) sites in quantities similar to those usually found for Co3O4 nanostructures activated by reduction post-treatments. When tested as electrodes for charge storage, the nanosheets demonstrated a competitive behavior in terms of both capacity and rate capability, e.g., a gravimetric capacity of ∼293 mAh g-1 at 1 A g-1 with 57% retention at 60 A g-1 was measured for nanosheets calcined at 350 °C. The materials were shown to be efficient catalysts for the reduction of nitroarenes (4-nitrophenol and 4-nitroaniline), outperforming other Co3O4 nanostructures, as well as effective adsorbents for the removal of organic dyes (methyl orange, methylene blue) from water.
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Affiliation(s)
- J M Munuera
- Instituto Nacional del Carbón, INCAR-CSIC, C/Francisco Pintado Fe 26, 33011 Oviedo, Spain.
| | - J I Paredes
- Instituto Nacional del Carbón, INCAR-CSIC, C/Francisco Pintado Fe 26, 33011 Oviedo, Spain.
| | - S Villar-Rodil
- Instituto Nacional del Carbón, INCAR-CSIC, C/Francisco Pintado Fe 26, 33011 Oviedo, Spain
| | - S García-Dalí
- Instituto Nacional del Carbón, INCAR-CSIC, C/Francisco Pintado Fe 26, 33011 Oviedo, Spain
| | - A Castro-Muñiz
- Instituto Nacional del Carbón, INCAR-CSIC, C/Francisco Pintado Fe 26, 33011 Oviedo, Spain
| | - A Martínez-Alonso
- Instituto Nacional del Carbón, INCAR-CSIC, C/Francisco Pintado Fe 26, 33011 Oviedo, Spain
| | - J M D Tascón
- Instituto Nacional del Carbón, INCAR-CSIC, C/Francisco Pintado Fe 26, 33011 Oviedo, Spain
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97
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Yang M, Shen L, Lu Y, Chee SW, Lu X, Chi X, Chen Z, Xu Q, Mirsaidov U, Ho GW. Disorder Engineering in Monolayer Nanosheets Enabling Photothermic Catalysis for Full Solar Spectrum (250–2500 nm) Harvesting. Angew Chem Int Ed Engl 2019; 58:3077-3081. [DOI: 10.1002/anie.201810694] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Min‐Quan Yang
- Department of Electrical and Computer EngineeringNational University of Singapore 117583 Singapore Singapore
| | - Lei Shen
- Department of Mechanical EngineeringNational University of Singapore 117575 Singapore Singapore
| | - Yuyao Lu
- Department of Electrical and Computer EngineeringNational University of Singapore 117583 Singapore Singapore
| | - See Wee Chee
- Department of PhysicsNational University of Singapore 117551 Singapore Singapore
| | - Xin Lu
- Department of Electrical and Computer EngineeringNational University of Singapore 117583 Singapore Singapore
| | - Xiao Chi
- Singapore Synchrotron Light SourceNational University of Singapore 117603 Singapore Singapore
| | - Zhihui Chen
- Department of ChemistryNational University of Singapore 117543 Singapore Singapore
| | - Qing‐Hua Xu
- Department of ChemistryNational University of Singapore 117543 Singapore Singapore
| | - Utkur Mirsaidov
- Department of PhysicsNational University of Singapore 117551 Singapore Singapore
| | - Ghim Wei Ho
- Department of Electrical and Computer EngineeringNational University of Singapore 117583 Singapore Singapore
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98
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Sarkar A, Khan GG. The formation and detection techniques of oxygen vacancies in titanium oxide-based nanostructures. NANOSCALE 2019; 11:3414-3444. [PMID: 30734804 DOI: 10.1039/c8nr09666j] [Citation(s) in RCA: 129] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
TiO2 and other titanium oxide-based nanomaterials have drawn immense attention from researchers in different scientific domains due to their fascinating multifunctional properties, relative abundance, environmental friendliness, and bio-compatibility. However, the physical and chemical properties of titanium oxide-based nanomaterials are found to be explicitly dependent on the presence of various crystal defects. Oxygen vacancies are the most common among them and have always been the subject of both theoretical and experimental research as they play a crucial role in tuning the inherent properties of titanium oxides. This review highlights different strategies for effectively introducing oxygen vacancies in titanium oxide-based nanomaterials, as well as a discussion on the positions of oxygen vacancies inside the TiO2 band gap based on theoretical calculations. Additionally, a detailed review of different experimental techniques that are extensively used for identifying oxygen vacancies in TiO2 nanostructures is also presented.
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Affiliation(s)
- Ayan Sarkar
- Centre for Research in Nanoscience and Nanotechnology, University of Calcutta, Block-JD2, Sector-III, Salt Lake, Kolkata 700106, West Bengal, India.
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99
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Galani SM, Panda AB. Enhanced Thermocatalytic Activity of Porous Yellow ZnO Nanoflakes: Defect- and Morphology-Induced Perspectives. Chem Asian J 2019; 14:612-620. [DOI: 10.1002/asia.201801745] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/28/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Sunil M. Galani
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI) and CSMCRI-Academy of Scientific and Innovative Research (AcSIR), G. B. Marg; Bhavnagar- 364002, Gujarat India
| | - Asit Baran Panda
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI) and CSMCRI-Academy of Scientific and Innovative Research (AcSIR), G. B. Marg; Bhavnagar- 364002, Gujarat India
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100
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Guo X, Wu F, Hao G, Peng S, Wang N, Li Q, Hu Y, Jiang W. Activating hierarchically hortensia-like CoAl layered double hydroxides by alkaline etching and anion modulation strategies for the efficient oxygen evolution reaction. Dalton Trans 2019; 48:5214-5221. [DOI: 10.1039/c9dt00538b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Hierarchically porous hortensia-like CoAl hydroxysulfide as an efficient electrocatalyst for the OER is designed and developed.
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Affiliation(s)
- Xiaoxue Guo
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Fang Wu
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Gazi Hao
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Shisi Peng
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Ning Wang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Qiulin Li
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Yubing Hu
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Wei Jiang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
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