101
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Tran-Phu T, Chen H, Daiyan R, Chatti M, Liu B, Amal R, Liu Y, Macfarlane DR, Simonov AN, Tricoli A. Nanoscale TiO 2 Coatings Improve the Stability of an Earth-Abundant Cobalt Oxide Catalyst during Acidic Water Oxidation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:33130-33140. [PMID: 35838141 DOI: 10.1021/acsami.2c05849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The large-scale deployment of proton-exchange membrane water electrolyzers for high-throughput sustainable hydrogen production requires transition from precious noble metal anode electrocatalysts to low-cost earth-abundant materials. However, such materials are commonly insufficiently stable and/or catalytically inactive at low pH, and positive potentials required to maintain high rates of the anodic oxygen evolution reaction (OER). To address this, we explore the effects of a dielectric nanoscale-thin layer, constituted of amorphous TiO2, on the stability and electrocatalytic activity of nanostructured OER anodes based on low-cost Co3O4. We demonstrate a direct correlation between the OER performance and the thickness of the atomic layer deposited TiO2 layers. An optimal TiO2 layer thickness of 4.4 nm enhances the anode lifetime by a factor of ca. 3, achieving 80 h of continuous electrolysis at pH near zero, while preserving high OER catalytic activity of the bare Co3O4 surface. Thinner and thicker TiO2 layers decrease the stability and activity, respectively. This is attributed to the pitting of the TiO2 layer at the optimal thickness, which allows for access to the catalytically active Co3O4 surface while stabilizing it against corrosion. These insights provide directions for the engineering of active and stable composite earth-abundant materials for acidic water splitting for high-throughput hydrogen production.
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Affiliation(s)
- Thanh Tran-Phu
- Nanotechnology Research Laboratory, College of Science, Research School of Chemistry, The Australian National University, Canberra, ACT 2601, Australia
- Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, NSW 2006, Australia
| | - Hongjun Chen
- The University of Sydney Nano Institute (Sydney Nano) and School of Physics, University of Sydney, Sydney 2006, Australia
| | - Rahman Daiyan
- Particles and Catalysis Research Laboratory, School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Manjunath Chatti
- School of Chemistry, Monash University, Victoria 3800, Australia
| | - Borui Liu
- Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, NSW 2006, Australia
| | - Rose Amal
- Particles and Catalysis Research Laboratory, School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Yun Liu
- Research School of Chemistry, The Australian National University, Canberra 2601, Australia
| | | | | | - Antonio Tricoli
- Nanotechnology Research Laboratory, College of Science, Research School of Chemistry, The Australian National University, Canberra, ACT 2601, Australia
- Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, NSW 2006, Australia
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102
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Spin-related symmetry breaking induced by half-disordered hybridization in Bi xEr 2-xRu 2O 7 pyrochlores for acidic oxygen evolution. Nat Commun 2022; 13:4106. [PMID: 35840581 PMCID: PMC9287408 DOI: 10.1038/s41467-022-31874-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 07/07/2022] [Indexed: 11/13/2022] Open
Abstract
While acidic oxygen evolution reaction plays a critical role in electrochemical energy conversion devices, the sluggish reaction kinetics and poor stability in acidic electrolyte challenges materials development. Unlike traditional nano-structuring approaches, this work focuses on the structural symmetry breaking to rearrange spin electron occupation and optimize spin-dependent orbital interaction to alter charge transfer between catalysts and reactants. Herein, we propose an atomic half-disordering strategy in multistage-hybridized BixEr2-xRu2O7 pyrochlores to reconfigure orbital degeneracy and spin-related electron occupation. This strategy involves controlling the bonding interaction of Bi-6s lone pair electrons, in which partial atom rearrangement makes the active sites transform into asymmetric high-spin states from symmetric low-spin states. As a result, the half-disordered BixEr2-xRu2O7 pyrochlores demonstrate an overpotential of ~0.18 V at 10 mA cm−2 accompanied with excellent stability of 100 h in acidic electrolyte. Our findings not only provide a strategy for designing atom-disorder-related catalysts, but also provides a deeper understanding of the spin-related acidic oxygen evolution reaction kinetics. While water electrolysis offers a potential path for renewable hydrogen fuel, water oxidation electrocatalysts typically suffer from poor stabilities in acid. Here, authors prepare ruthenium-based pyrochlores and demonstrate promising activities and durabilities for acidic water electro-oxidation.
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103
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Gao Z, Lai Y, Gong L, Zhang L, Xi S, Sun J, Zhang L, Luo F. Robust Th-MOF-Supported Semirigid Single-Metal-Site Catalyst for an Efficient Acidic Oxygen Evolution Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhi Gao
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, Jiangxi, China
- Foshan (Southern China) Institute for New Materials, Foshan 528000, Guangdong, China
| | - Yulian Lai
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, Jiangxi, China
| | - Lele Gong
- State Key Laboratory of Organic−Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lipeng Zhang
- State Key Laboratory of Organic−Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shibo Xi
- Institute of Chemical and Engineering Sciences, A*STAR, Singapore 627833, Singapore
| | - Jian Sun
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China
| | - Linjuan Zhang
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China
| | - Feng Luo
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, Jiangxi, China
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104
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Cobalt-Ceria Catalysts for the Methanol Decomposition: Insights in the Long-Term Stability and Methanol Interaction. Top Catal 2022. [DOI: 10.1007/s11244-022-01667-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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105
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Wen H, Zhao W, Han X. Constructing Co 3O 4/La 2Ti 2O 7 p-n Heterojunction for the Enhancement of Photocatalytic Hydrogen Evolution. NANOMATERIALS 2022; 12:nano12101695. [PMID: 35630919 PMCID: PMC9145759 DOI: 10.3390/nano12101695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 05/11/2022] [Accepted: 05/12/2022] [Indexed: 11/16/2022]
Abstract
Layered perovskite-type semiconductor La2Ti2O7 has attracted lots of attention in photocatalytic hydrogen evolution, due to the suitable energy band position for water splitting, high specific surface area, and excellent physicochemical stability. However, the narrow light absorption range and the low separation efficiency of photogenerated carriers limit its photocatalytic activity. Herein, plate-like La2Ti2O7 with uniform crystal morphology was synthesized in molten NaCl salt. A p-n heterojunction was then constructed through the in situ hydrothermal growth of p-type Co3O4 nanoparticles on the surface of n-type plate-like La2Ti2O7. The effects of Co3O4 loading on photocatalytic hydrogen evolution performance were investigated in detail. The results demonstrate that composite Co3O4/La2Ti2O7 possesses much better photocatalytic activity than the pure component. The composite photocatalyst with 1 wt% Co3O4 exhibits the highest hydrogen evolution rate of 79.73 μmol·g-1·h-1 and a good cycling stability. The photoelectrochemistry characterizations illustrate that the improvement of photocatalytic activity is mainly attributed to both the enhanced light absorption from the Co3O4 ornament and the rapid separation of photogenerated electron-hole pairs driven by the built-in electric field close to the p-n heterojunction. The results may provide further insights into the design of high-efficiency La2Ti2O7-based heterojunctions for photocatalytic hydrogen evolution.
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106
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Chen Z, Yang H, Kang Z, Driess M, Menezes PW. The Pivotal Role of s-, p-, and f-Block Metals in Water Electrolysis: Status Quo and Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2108432. [PMID: 35104388 DOI: 10.1002/adma.202108432] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/19/2022] [Indexed: 05/27/2023]
Abstract
Transition metals, in particular noble metals, are the most common species in metal-mediated water electrolysis because they serve as highly active catalytic sites. In many cases, the presence of nontransition metals, that is, s-, p-, and f-block metals with high natural abundance in the earth-crust in the catalytic material is indispensable to boost efficiency and durability in water electrolysis. This is why alkali metals, alkaline-earth metals, rare-earth metals, lean metals, and metalloids receive growing interest in this research area. In spite of the pivotal role of these nontransition metals in tuning efficiency of water electrolysis, there is far more room for developments toward a knowledge-based catalyst design. In this review, five classes of nontransition metals species which are successfully utilized in water electrolysis, with special emphasis on electronic structure-catalytic activity relationships and phase stability, are discussed. Moreover, specific fundamental aspects on electrocatalysts for water electrolysis as well as a perspective on this research field are also addressed in this account. It is anticipated that this review can trigger a broader interest in using s-, p-, and f-block metals species toward the discovery of advanced polymetal-containing electrocatalysts for practical water splitting.
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Affiliation(s)
- Ziliang Chen
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Hongyuan Yang
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Zhenhui Kang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China
| | - Matthias Driess
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Prashanth W Menezes
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
- Material Chemistry Group for Thin Film Catalysis - CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany
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107
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108
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Wang X, Wang J, Yu B, Jiang W, Wei J, Chen B, Xu R, Yang L. Facile synthesis MnCo 2O 4.5@C nanospheres modifying PbO 2 energy-saving electrode for zinc electrowinning. JOURNAL OF HAZARDOUS MATERIALS 2022; 428:128212. [PMID: 35030491 DOI: 10.1016/j.jhazmat.2021.128212] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 12/31/2021] [Accepted: 12/31/2021] [Indexed: 06/14/2023]
Abstract
The oxygen evolution reaction kinetics in industrial zinc electrowinning is sluggish, resulting in low electrocatalytic activity and substantial energy expenditure (about one-third of energy was wasted due to the strong polarization effect). Herein, the paper described a core-shell structured MnCo2O4.5@C modified PbO2 electrode through the pyrolysis and co-electrodeposition as a promising candidate for zinc electrowinning. As a result, the obtained Pb-0.2%Ag/α-PbO2/β-PbO2-MnCo2O4.5@C composite electrode showed a sandwich-like structure, where Pb-0.2%Ag as a core, α-PbO2 as a mid-layer, and β-PbO2-MnCo2O4.5@C served as an electrocatalytic layer. It also possessed improved OER catalytic activity, only required 680 mV to achieve a current density of 50 mA cm-2 and a Tafel slope of 216.04 mV dec-1 in an acidic solution containing 50 g L-1 Zn2+ and 150 g L-1 H2SO4. The current efficiency increased by 0.7% and the cell voltage reduced by 360 mV as compared to a conventional Pb-0.76%Ag alloy electrode, leading to a remarkable energy-consumption reduction of 283.5 kW h for producing per ton metallic zinc. Furthermore, Pb-0.2%Ag/α-PbO2/β-PbO2-MnCo2O4.5@C exhibited a prolonged service life, which worked about 44 h under an ultra-high current density of 2 A cm-2. Hence, this paper provides the strategy to design and construct non-precious, high-performance catalyst for electrolysis and other applications.
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Affiliation(s)
- Xuanbing Wang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Junli Wang
- Researcher Centers for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China
| | - Bohao Yu
- School of Mathematics, Yunnan Normal University, Kunming 650500, China
| | - Wenhao Jiang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Jinlong Wei
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Buming Chen
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China; Kunming Hendera Science and Technology Co., Ltd., Kunming 650106, China
| | - Ruidong Xu
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China.
| | - Linjing Yang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China.
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109
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Song C, Zhan Q, Liu F, Wang C, Li H, Wang X, Guo X, Cheng Y, Sun W, Wang L, Qian J, Pan B. Overturned Loading of Inert CeO 2 to Active Co 3 O 4 for Unusually Improved Catalytic Activity in Fenton-Like Reactions. Angew Chem Int Ed Engl 2022; 61:e202200406. [PMID: 35128779 DOI: 10.1002/anie.202200406] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Indexed: 11/09/2022]
Abstract
In the past decades, numerous efforts have been devoted to improving the catalytic activity of nanocomposites by either exposing more active sites or regulating the interaction between the support and nanoparticles while keeping the structure of the active sites unchanged. Here, we report the fabrication of a Co3 O4 -CeO2 nanocomposite via overturning the loading direction, i.e., loading an inert CeO2 support onto active Co3 O4 nanoparticles. The resultant catalyst exhibits unexpectedly higher activity and stability in peroxymonosulfate-based Fenton-like reactions than its analog prepared by the traditional impregnation method. Abundant oxygen vacancies (Ov with a Co⋅⋅⋅Ov ⋅⋅⋅Ce structure instead of Co⋅⋅⋅Ov ) are generated as new active sites to facilitate the cleavage of the peroxide bond to produce SO4 .- and accelerate the rate-limiting step, i.e., the desorption of SO4 .- , affording improved activity. This strategy is a new direction for boosting the catalytic activity of nanocomposite catalysts in various scenarios, including environmental remediation and energy applications.
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Affiliation(s)
- Chunli Song
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing, 210094, China
| | - Qing Zhan
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing, 211816, China
| | - Fei Liu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing, 210094, China
| | - Chuan Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing, 210094, China
| | - Hongchao Li
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing, 210094, China
| | - Xuan Wang
- Key Lab of Mesoscopic Chemistry MOE, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Xuefeng Guo
- Key Lab of Mesoscopic Chemistry MOE, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yingchun Cheng
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing, 211816, China
| | - Wei Sun
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, South-Central University for Nationalities, Wuhan, 430074, China
| | - Li Wang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, South-Central University for Nationalities, Wuhan, 430074, China
| | - Jieshu Qian
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing, 210094, China.,Research Center for Environmental Nanotechnology (ReCENT), School of Environment, State Key Laboratory of Environmental Pollution and Resources Reuse, Nanjing University, Nanjing, 210023, China
| | - Bingcai Pan
- Research Center for Environmental Nanotechnology (ReCENT), School of Environment, State Key Laboratory of Environmental Pollution and Resources Reuse, Nanjing University, Nanjing, 210023, China
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110
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Budiyanto E, Tüysüz H. Cobalt Oxide Nanowires with Controllable Diameter and Crystal Structures for the Oxygen Evolution Reaction. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Eko Budiyanto
- Max-Planck-Institut für Kohlenforschung: Max-Planck-Institut fur Kohlenforschung Heterogeneous Catalysis GERMANY
| | - Harun Tüysüz
- Max-Planck-Institut für Kohlenforschung: Max-Planck-Institut fur Kohlenforschung Heterogeneous Catalysis Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr GERMANY
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111
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Budiyanto E, Salamon S, Wang Y, Wende H, Tüysüz H. Phase Segregation in Cobalt Iron Oxide Nanowires toward Enhanced Oxygen Evolution Reaction Activity. JACS AU 2022; 2:697-710. [PMID: 35373196 PMCID: PMC8970005 DOI: 10.1021/jacsau.1c00561] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Indexed: 06/14/2023]
Abstract
The impact of reduction post-treatment and phase segregation of cobalt iron oxide nanowires on their electrochemical oxygen evolution reaction (OER) activity is investigated. A series of cobalt iron oxide spinel nanowires are prepared via the nanocasting route using ordered mesoporous silica as a hard template. The replicated oxides are selectively reduced through a mild reduction that results in phase transformation as well as the formation of grain boundaries. The detailed structural analyses, including the 57Fe isotope-enriched Mössbauer study, validated the formation of iron oxide clusters supported by ordered mesoporous CoO nanowires after the reduction process. This affects the OER activity significantly, whereby the overpotential at 10 mA/cm2 decreases from 378 to 339 mV and the current density at 1.7 V vs RHE increases by twofold from 150 to 315 mA/cm2. In situ Raman microscopy revealed that the surfaces of reduced CoO were oxidized to cobalt with a higher oxidation state upon solvation in the KOH electrolyte. The implementation of external potential bias led to the formation of an oxyhydroxide intermediate and a disordered-spinel phase. The interactions of iron clusters with cobalt oxide at the phase boundaries were found to be beneficial to enhance the charge transfer of the cobalt oxide and boost the overall OER activity by reaching a Faradaic efficiency of up to 96%. All in all, the post-reduction and phase segregation of cobalt iron oxide play an important role as a precatalyst for the OER.
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Affiliation(s)
- Eko Budiyanto
- Max-Planck-Institut
für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Soma Salamon
- Faculty
of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Yue Wang
- Max-Planck-Institut
für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Heiko Wende
- Faculty
of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Harun Tüysüz
- Max-Planck-Institut
für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
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112
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Overturned Loading of Inert CeO
2
to Active Co
3
O
4
for Unusually Improved Catalytic Activity in Fenton‐Like Reactions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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113
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Li J, Zou S, Huang J, Wu X, Lu Y, Liu X, Song B, Dong D. Mn-N-P doped carbon spheres as an efficient oxygen reduction catalyst for high performance Zn-Air batteries. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.02.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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114
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Li H, Liu H, Qin Q, Liu X. BaLaIr double mixed metal oxides as competitive catalysts for oxygen evolution electrocatalysis in acidic media. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01361k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The prepared double mixed metal oxide BaIrO2.937/La3IrO7 with a surface of IrOx formed by Ba and La leaching exhibits excellent performance for boosting the OER in acidic media.
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Affiliation(s)
- Haisen Li
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Huihui Liu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Qing Qin
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Xien Liu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
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115
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Hu Z, Hao L, Quan F, Guo R. Recent developments of Co3O4-based materials as catalysts for the oxygen evolution reaction. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01688a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The demand for the development of clean and efficient energy is becoming increasingly pressing due to depleting fossil fuels and environmental concerns.
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Affiliation(s)
- Zhenyu Hu
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China
| | - Liping Hao
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
| | - Fan Quan
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China
| | - Rui Guo
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China
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116
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Xu W, Meng L, Tian W, Li S, Cao F, Li L. Polypyrrole Serving as Multifunctional Surface Modifier for Photoanode Enables Efficient Photoelectrochemical Water Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105240. [PMID: 34741420 DOI: 10.1002/smll.202105240] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Indexed: 06/13/2023]
Abstract
Conjugated polymer polypyrrole (PPy) with high electrical conductivity and excellent photothermal effect has been adopted as multifunctional surface modifier on ternary metal sulfide (CdIn2 S4 , CIS) photoanode for photoelectrochemical (PEC) water splitting for the first time. As a p-type conducting polymer, PPy forms p-n junction with n-type CIS to relieve the bulk carrier recombination. Besides, the incorporation of Ni ions into PPy matrix further enhances the surface charge carrier transfer at photoanode/electrolyte interfaces. Furthermore, the excellent photothermal effect of PPy produces heat under near-infrared (NIR) irradiation, which can elevate the temperature of CIS photoanode in situ and further enhance the PEC performance. As a result, the optimum CIS/Ni-PPy photoanode shows an obviously enhanced photocurrent density of 6.07 mA cm-2 at 1.23 V versus reversible hydrogen electrode under the irradiation of AM 1.5G combined with NIR light, which is the highest among all the CIS based photoanodes reported to date. The synergetic effect of Ni-PPy significantly suppresses the bulk recombination, decreases the carrier transfer resistance, and accelerates the surface water oxidation dynamics, resulting in high carrier injection efficiency over 80% in the measured potential range. The universality of the multifunctional surface modifier strategy has also been confirmed on metal oxide photoanode.
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Affiliation(s)
- Weiwei Xu
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, P. R. China
| | - Linxing Meng
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, P. R. China
| | - Wei Tian
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, P. R. China
| | - Shengnan Li
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, P. R. China
| | - Fengren Cao
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, P. R. China
| | - Liang Li
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, P. R. China
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117
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Huang K, Yang L, Gao Y, Li S, Zhang H, Huang F. Super-stable SnO 2/MoS 2 enhanced the electrocatalytic hydrogen evolution in acidic environments. RSC Adv 2022; 12:23503-23512. [PMID: 36090447 PMCID: PMC9382654 DOI: 10.1039/d2ra03627d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 07/22/2022] [Indexed: 11/21/2022] Open
Abstract
We designed a superstable SnO2/MoS2 coupled nanosheet array on carbon cloth, which exhibited interface engineering of SnO2/MoS2 with fast electron transfer and proton adsorption boosting electrocatalytic hydrogen evolution in acidic environments.
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Affiliation(s)
- Kun Huang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Lan Yang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Yihong Gao
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Shikuo Li
- School of Materials Science and Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Hui Zhang
- School of Materials Science and Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Fangzhi Huang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
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118
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Li G, Ma Z, Li W, Nie Y, Pei L, Zhong J, Miao Q, Hu ML, Wen X. Interfacial engineering of heterostructured Fe-Ni 3S 2/Ni(OH) 2 nanosheets with tailored d-band center for enhanced oxygen evolution catalysis. Dalton Trans 2022; 51:17391-17396. [DOI: 10.1039/d2dt02770d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The OER catalytic activities of Fe-Ni3S2 nanosheets can be well manipulated by tailoring the d band center positions via interfacial engineering strategy.
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Affiliation(s)
- Gao Li
- College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Zhanfeng Ma
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Weirong Li
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Yuhang Nie
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Lang Pei
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Jiasong Zhong
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Qian Miao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Mao-Lin Hu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Xin Wen
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P. R. China
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119
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Li S, Wang H, Ma Z, Xiao Q, Gao Q, Jiang Y, Shen W, He R, Li M. Rapid Surface Reconstruction of Amorphous Co(OH) 2 /WO x with Rich Oxygen Vacancies to Promote Oxygen Evolution. CHEMSUSCHEM 2021; 14:5534-5540. [PMID: 34709735 DOI: 10.1002/cssc.202102020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/27/2021] [Indexed: 06/13/2023]
Abstract
Herein, a transition metal dissolution-oxygen vacancy strategy, based on dissolution of highly oxidized transition metal species in alkaline electrolyte, was suggested to construct a high-performance amorphous Co(OH)2 /WOx (a-CoW) catalyst for the oxygen evolution reaction (OER). The surface reconstruction of a-CoW and its evolution were described by regulating oxygen vacancies. With continuous dissolution of W species, oxygen vacancies on the surface were generated rapidly, the surface reconstruction was promoted, and the OER performance was improved significantly. During the surface reconstruction, W species also played a role in electronic modulation for Co. Due to its rapid surface reconstruction, a-CoW exhibited excellent OER performance in alkaline electrolyte with an overpotential of 208 mV at 10 mA cm-2 and had long-term stability for at least 120 h. This work shows that the transition metal dissolution-oxygen vacancy strategy is effective for preparation of high-performance catalysts.
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Affiliation(s)
- Sijun Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Hua Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Zemian Ma
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Qinglan Xiao
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Qin Gao
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Yimin Jiang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Wei Shen
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Rongxing He
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Ming Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
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120
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Li G, Lu L, Pei L, Ma Z, Yuan Y, Hu ML, Miao Q, Zhong J. In Situ Transformation of Metal-Organic Frameworks into Hollow Nickel-Cobalt Double Hydroxide Arrays for Efficient Water Oxidation. Inorg Chem 2021; 61:738-745. [PMID: 34914388 DOI: 10.1021/acs.inorgchem.1c03602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Developing earth-abundant electrocatalysts for efficient oxygen evolution reaction (OER) is of paramount significance for electrochemical water splitting. Herein, an efficient in situ etching-deposition growth strategy is employed to transform pristine two-dimensional (2D) Co-metal-organic frameworks into hollow Ni/Co double hydroxide arrays (denoted as Ni/Co-DH), which not only yields a larger surface area and exposes more active sites but also decreases the activation energy to the OER. With structural and compositional benefits, the Ni/Co-DH exhibits high performance with an overpotential of 229 mV at 10 mA cm-2 and exceptional long-term stability of over 90 h in 1 M KOH medium for OER, comparable to most non-noble oxygen evolution catalysts reported so far. In addition, a two-electrode Ni/Co-DH∥Pt/C electrolyzer also requires a considerably low voltage of 1.58 V at 10 mA cm-2 for overall water splitting. This study affords a rational strategy to develop water-alkali electrolyzers with great complexity for large-scale water-splitting systems.
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Affiliation(s)
- Gao Li
- College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, P. R. China.,College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Lei Lu
- Eco-Materials and Renewable Energy Research Center (ERERC), National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, P. R. China
| | - Lang Pei
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Zhanfeng Ma
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Yongjun Yuan
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Mao-Lin Hu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Qian Miao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Jiasong Zhong
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
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121
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Tang J, Yao L, Ren X, Shao Z, Cai M, Gao L, Wu X. Regulating oxygen vacancies in Co 3O 4by combining solution reduction and Ni 2+ impregnation for oxygen evolution reaction. NANOTECHNOLOGY 2021; 33:095701. [PMID: 34808610 DOI: 10.1088/1361-6528/ac3beb] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 11/22/2021] [Indexed: 06/13/2023]
Abstract
Oxygen vacancies are considered to be an important factor to influence the electronic structure and charge transport of electrocatalysts in the field of energy chemistry. Various strategies focused on oxygen vacancy engineering are proved to be efficient for further improving the electrocatalytic performance of Co3O4. Herein, an optimal Co3O4with rich oxygen vacancies have been synthesized via a two-step process combining solution reduction and Ni2+impregnation. The as-prepared electrocatalyst exhibits an enhanced oxygen evolution performance with the overpotential of 330 mV at the current density of 10 mA cm-2in alkaline condition, which is 84 mV lower than that of pristine one. With the increasing of oxygen vacancies, the charge transfer efficiency and surface active area are relatively enhanced reflected by the Tafel slope and double-layer capacitance measurement. These results indicate that combination of solution reduction and heteroatom doping can be a valid way for efficient metal oxides-based electrocatalyst development by constructing higher concentration of oxygen vacancy.
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Affiliation(s)
- Jinyu Tang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, People's Republic of China
| | - Lu Yao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, People's Republic of China
| | - Xiaoru Ren
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, People's Republic of China
| | - Zhiyu Shao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, People's Republic of China
| | - Minmin Cai
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, People's Republic of China
| | - Lu Gao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, People's Republic of China
| | - Xiaofeng Wu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, People's Republic of China
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122
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Lu Y, Zou S, Li J, Li C, Liu X, Dong D. Fe, B, and N Codoped Carbon Nanoribbons Derived from Heteroatom Polymers as High-Performance Oxygen Reduction Reaction Electrocatalysts for Zinc-Air Batteries. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:13018-13026. [PMID: 34696592 DOI: 10.1021/acs.langmuir.1c02100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
For zinc-air batteries, it is of great importance to heighten the oxygen reduction reaction (ORR) activity of cathode electrocatalysts. Herein, we synthesized carbon nanoribbons doped with Fe, B, and N as high-activity ORR electrocatalysts by a templating method. Benefiting from the melamine fiber (MF) and B doping, the as-prepared carbon nanoribbon has a high specific surface area, and the improved turnover frequency of Fe sites increases the ORR activity. The as-synthesized Fe-B-N-C electrocatalyst shows an improved half-wave potential and limited current density compared to Fe-N-C, B-N-C, and N-C. Moreover, zinc-air batteries with the Fe-B-N-C electrocatalyst exhibit a higher specific capacity and better long-term durability compared to those with commercial Pt/C. This work provides an effective strategy to synthesize noble-metal-free electrocatalysts for wide applications of zinc-air batteries.
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Affiliation(s)
- Yue Lu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Shanbao Zou
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Jiajie Li
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Chenyu Li
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Xundao Liu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Dehua Dong
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, P. R. China
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123
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Li N, Cai L, Wang C, Lin Y, Huang J, Sheng H, Pan H, Zhang W, Ji Q, Duan H, Hu W, Zhang W, Hu F, Tan H, Sun Z, Song B, Jin S, Yan W. Identification of the Active-Layer Structures for Acidic Oxygen Evolution from 9R-BaIrO 3 Electrocatalyst with Enhanced Iridium Mass Activity. J Am Chem Soc 2021; 143:18001-18009. [PMID: 34694127 DOI: 10.1021/jacs.1c04087] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Iridium-based perovskites show promising catalytic activity for oxygen evolution reaction (OER) in acid media, but the iridium mass activity remains low and the active-layer structures have not been identified. Here, we report highly active 1 nm IrOx particles anchored on 9R-BaIrO3 (IrOx/9R-BaIrO3) that are directly synthesized by solution calcination followed by strong acid treatment for the first time. The developed IrOx/9R-BaIrO3 catalyst delivers a high iridium mass activity (168 A gIr-1), about 16 times higher than that of the benchmark acidic OER electrocatalyst IrO2 (10 A gIr-1), and only requires a low overpotential of 230 mV to reach a catalytic current density of 10 mA cm-2geo. Careful scanning transmission electron microscopy, synchrotron radiation-based X-ray absorption spectroscopy, and X-ray photoelectron spectroscopy analyses reveal that, during the electrocatalytic process, the initial 1 nm IrOx nanoparticles/9R-BaIrO3 evolve into amorphous Ir4+OxHy/IrO6 octahedrons and then to amorphous Ir5+Ox/IrO6 octahedrons on the surface. Such high relative content of amorphous Ir5+Ox species derived from trimers of face-sharing IrO6 octahedrons in 9R-BaIrO3 and the enhanced metallic conductivity of the Ir5+Ox/9R-BaIrO3 catalyst are responsible for the excellent acidic OER activity. Our results provide new insights into the surface active-layer structure evolution in perovskite electrocatalysts and demonstrate new approaches for engineering highly active acidic OER nanocatalysts.
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Affiliation(s)
- Na Li
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Liang Cai
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China.,Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Chao Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Yue Lin
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Jinzhen Huang
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States.,Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150001, P.R. China
| | - Hongyuan Sheng
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Haibin Pan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Wei Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Qianqian Ji
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Hengli Duan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Wei Hu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Wenhua Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Fengchun Hu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Hao Tan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Zhihu Sun
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Bo Song
- Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150001, P.R. China
| | - Song Jin
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Wensheng Yan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
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124
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Du Y, Tang H, Zhang D, Liu H, Chen Y, Zhu Z, Yang W, Li Z, Tang Y, Liu C. Boosting Electrocatalytic Oxygen Evolution: Superhydrophilic/Superaerophobic Hierarchical Nanoneedle/Microflower Arrays of Ce xCo 3-xO 4 with Oxygen Vacancies. ACS APPLIED MATERIALS & INTERFACES 2021; 13:42843-42851. [PMID: 34482694 DOI: 10.1021/acsami.1c11662] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The oxygen evolution reaction has become the bottleneck of electrochemical water splitting for its sluggish kinetics. Developing high-efficiency and low-cost non-noble-metal oxide electrocatalysts is crucial but challenging for industrial application. Herein, superhydrophilic/superaerophobic hierarchical nanoneedle/microflower arrays of Ce-substituted Co3O4 (CexCo3-xO4) in situ grown on the nickel foam are successfully constructed. The hierarchical architecture and superhydrophilic/superaerophobic interface can be facilely regulated by controlling the introduction of Ce into Co3O4. The unique feature of hierarchical architecture and superhydrophilic/superaerophobic interface is in favor of electrolyte penetration and bubbles release. In addition, the presence of oxygen vacancy and Ce endows the catalyst with enhanced intrinsic activity. Benefiting from these advantages, the optimized Ce0.12Co2.88O4 catalyst shows a superior electrocatalytic performance for the oxygen evolution reaction (OER) with an overpotential of 282 mV at 20 mA cm-2, and a Tafel slope of 81.4 mV dec-1. The turnover frequency of 0.0279 s-1 for Ce0.12Co2.88O4 is 9.3 times larger than that for Co3O4 at an overpotential of 350 mV. Moreover, the optimized Ce0.12Co2.88O4 catalyst shows a robust long-term stability in alkaline media.
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Affiliation(s)
- Yi Du
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P. R. China
- College of Chemistry and Chemical Engineering, Anshun University, Anshun 561000, P. R. China
| | - Haifang Tang
- College of Materials Science and Engineering, Hunan University, Changsha 410082, P. R. China
| | - Danyu Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P. R. China
| | - Huiling Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P. R. China
| | - Yuqing Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P. R. China
| | - Zuoyan Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P. R. China
| | - Weijian Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P. R. China
| | - Ziru Li
- College of Materials Science and Engineering, Hunan University, Changsha 410082, P. R. China
| | - Yanhong Tang
- College of Materials Science and Engineering, Hunan University, Changsha 410082, P. R. China
| | - Chengbin Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P. R. China
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125
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Wu X, Wei J, Zhang T, Yang Y, Liu Q, Yan X, Tang Y. Novel synthesis of in situ CeO x nanoparticles decorated on CoP nanosheets for highly efficient electrocatalytic oxygen evolution. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00821h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
CoP nanosheets decorated by in-situ CeOx nanoparticles were designed through a novel two-step solvothermal-phosphating strategy, which act as an electrode exhibit excellent electrocatalytic performance toward OER in alkaline condition.
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Affiliation(s)
- Xiaoxia Wu
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jiaxu Wei
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Tong Zhang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yuchen Yang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Qingyi Liu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xingbin Yan
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yu Tang
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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