1
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Zhang C, Zheng J, Su S, Jin Y, Chen Z, Wang Y, Xu J. Continuous and controllable synthesis of MnO 2 adsorbents for H 2S removal at low temperature. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134402. [PMID: 38688216 DOI: 10.1016/j.jhazmat.2024.134402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/15/2024] [Accepted: 04/23/2024] [Indexed: 05/02/2024]
Abstract
H2S is an extremely noxious impurity generated from nature and chemical industrial processes. High performing H2S adsorbents are required for chemical industry and environmental engineering. Herein, α-, γ-, and δ-MnO2 adsorbents with high sulfur capacity were synthesized through a continuous-flow approach with a microreactor system, achieving much higher efficiency than hydrothermal methods. The relationship between crystal structure and synthesis conditions such as residence time, reaction temperature, concentration of K+ in solution and reactant ratio is discussed. According to the H2S breakthrough tests at 150 °C, continuously prepared α-, γ-, and δ-MnO2 exhibited sulfur capacities of 669.5, 193.8 and 607.6 mg S/g sorbent, respectively, which was at a high level among the reported adsorbents. Such enhanced performance is related to the large surface area and mesopore volume, high reducibility, and a large number of oxygen species with high reactivity and mobility. Manganese sulfide and elemental sulfur were formed after desulfurization, which indicated the reaction consisted of two steps: redox and sulfidation of the sorbents. This study provides an innovative design strategy for the construction of nanomaterials with high H2S adsorption performances.
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Affiliation(s)
- Chenxiao Zhang
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jinyu Zheng
- Sinopec Research Institute of Petroleum Processing Co., Ltd, Beijing 102299, China
| | - Shikun Su
- Sinopec Research Institute of Petroleum Processing Co., Ltd, Beijing 102299, China
| | - Ye Jin
- Sinopec Research Institute of Petroleum Processing Co., Ltd, Beijing 102299, China
| | - Zhuo Chen
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Yundong Wang
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jianhong Xu
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
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2
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Yuan Y, He K, Lu J. Structure-Property Interplay Within Microporous Manganese Dioxide Tunnels For Sustainable Energy Storage. Angew Chem Int Ed Engl 2024; 63:e202316055. [PMID: 38092695 DOI: 10.1002/anie.202316055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Indexed: 12/31/2023]
Abstract
Tunnel-structured manganese dioxides (MnO2 ), also known as octahedral molecule sieves (OMS), are widely studied in geochemistry, deionization, energy storage and (electro)catalysis. These functionalities originate from their characteristic sub-nanoscale tunnel framework, which, with a high degree of structural polymorphism and rich surface chemistry, can reversibly absorb and transport various ions. An intensive understanding of their structure-property relationship is prerequisite for functionality optimization, which has been recently approached by implementation of advanced (in situ) characterizations providing significant atomistic sciences. This review will thus timely cover recent advancements related to OMS and their energy storage applications, with a focus on the atomistic insights pioneered by researchers including our group: the origins of structural polymorphism and heterogeneity, the evolution of faceted OMS crystals and its effect on electrocatalysis, the ion transport/storage properties and their implication for processing OMS. These studies represent a clear rational behind recent endeavors investigating the historically applied OMS materials, the summary of which is expected to deepen the scientific understandings and guide material engineering for functionality control.
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Affiliation(s)
- Yifei Yuan
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province, 325035, China
| | - Kun He
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province, 325035, China
| | - Jun Lu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang Province, 310027, China
- Quzhou Institute of Power Battery and Grid Energy Storage, Quzhou, Zhejiang, 324000, China
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3
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Gendler D, Bi J, Mekan D, Warokomski A, Armstrong C, Hernandez-Pagan EA. Halide-driven polymorph selectivity in the synthesis of MnX (X = S, Se) nanoparticles. NANOSCALE 2023; 15:2650-2658. [PMID: 36722489 DOI: 10.1039/d2nr05854e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Devising synthetic strategies to control crystal structure is of great importance as materials properties are governed by structure. MnS is a great model system as it has three known stable polymorphs. Herein, we show the selective synthesis of colloidal wurtzite- and rock-salt-type MnS under identical reactions conditions changing only the manganese halide precursor. Mixtures of Mn halides or halide surrogate (e.g., NH4Cl) also enabled polymorph control. Powder X-ray diffraction aliquot studies of the reactions revealed the crystal structure at the onset of nucleation and that of the final product is the same, unlike the Ostwald ripening transformation observed in other systems. The halide-driven selectivity was also observed in the synthesis of manganese selenide nanoparticles. In this system, variation of the Mn halide precursor allowed access to the wurtzite- and rock salt-type polymorphs of MnSe, as well as the pyrite-MnSe2 phase. Based on this work, the mixing of metal salts might be a simple and effective strategy towards polymorph control and access materials with new crystal structures.
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Affiliation(s)
- Danielle Gendler
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
| | - Jiaying Bi
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
| | - Deep Mekan
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
| | - Ashley Warokomski
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
| | - Cameron Armstrong
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
| | - Emil A Hernandez-Pagan
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
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4
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Dinh VP, Luu TA, Siemek K, Kozlenko DP, Le KH, Dang NT, Nguyen TV, Le Phuc N, Tran TD, Phan PT, Lo ST, Hoang KAT, Dinh TK, Luong NT, Le NC, Nguyen NT, Ho TH, Tran XD, Tran PD, Nguyen HQ. Crystallization Pathways and Evolution of Morphologies and Structural Defects of α-MnO 2 under Air Annealing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:15604-15613. [PMID: 36507853 DOI: 10.1021/acs.langmuir.2c02237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Manganese dioxide nanomaterials have wide applications in many areas from catalysis and Li-ion batteries to gas sensing. Understanding the crystallization pathways, morphologies, and formation of defects in their structure is particularly important but still a challenging issue. Herein, we employed an arsenal of X-ray diffraction (XRD), scanning electron microscopy (SEM), neutron diffraction, positron annihilation spectroscopies, and ab initio calculations to investigate the evolution of the morphology and structure of α-MnO2 nanomaterials prepared via reduction of KMnO4 solution with C2H5OH prior to being annealed in air at 200-600 °C. We explored a novel evolution that α-MnO2 nucleation can be formed even at room temperature and gradually developed to α-MnO2 nanorods at above 500 °C. We also found the existence of H+ or K+ ions in the [1 × 1] tunnels of α-MnO2 and observed the simultaneous presence of Mn and O vacancies in α-MnO2 crystals at low temperatures. Increasing the temperature removed these O vacancies, leaving only the Mn vacancies in the samples.
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Affiliation(s)
- Van-Phuc Dinh
- Institute of Fundamental and Applied Sciences, Duy Tan University, 06 Tran Nhat Duat, Ho Chi Minh City700000, Viet Nam
- Faculty of Natural Sciences, Duy Tan University, 03 Quang Trung, Da Nang City550000, Viet Nam
| | - Tuyen Anh Luu
- Center for Nuclear Technologies, Vietnam Atomic Energy Institute, Ho Chi Minh City700000, Viet Nam
- Dzhelepov Laboratory of Nuclear Problems, JINR, Dubna141980, Moscow Region, Russia
| | - Krzysztof Siemek
- Dzhelepov Laboratory of Nuclear Problems, JINR, Dubna141980, Moscow Region, Russia
- Institute of Nuclear Physics, Polish Academy of Sciences, KrakowPL-31342, Poland
| | - Denis P Kozlenko
- Frank Laboratory of Neutron Physics, JINR, Dubna141980, Moscow Region, Russia
| | - Khiem Hong Le
- Institute of Physics, Viet Nam Academy of Science and Technology, 10 Dao Tan, Ba Dinh, Ha Noi City100000, Viet Nam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Ha Noi City100000, Viet Nam
| | - Ngoc Toan Dang
- Faculty of Natural Sciences, Duy Tan University, 03 Quang Trung, Da Nang City550000, Viet Nam
- Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang City550000, Viet Nam
| | - Tiep Van Nguyen
- Institute of Physics, Viet Nam Academy of Science and Technology, 10 Dao Tan, Ba Dinh, Ha Noi City100000, Viet Nam
- Flerov Laboratory of Nuclear Reactions, JINR, Dubna141980, Moscow Region, Russia
| | - Nguyen Le Phuc
- Vietnam Petroleum Institute, Ho Chi Minh City700000, Viet Nam
| | - Tap Duy Tran
- Faculty of Materials Science and Technology, University of Science, VNU-HCMC, 227 Nguyen Van Cu, Ho Chi Minh City700000, Viet Nam
- Vietnam National University Ho Chi Minh City, Ho Chi Minh City700000, Viet Nam
| | - Phuc T Phan
- Center for Nuclear Technologies, Vietnam Atomic Energy Institute, Ho Chi Minh City700000, Viet Nam
| | - Son T Lo
- Center for Nuclear Technologies, Vietnam Atomic Energy Institute, Ho Chi Minh City700000, Viet Nam
| | - Kiet Anh Tuan Hoang
- Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang City550000, Viet Nam
- Graduate School of Education, University of Pennsylvania, Philadelphia, Pennsylvania19104, United States
| | - Thanh Khan Dinh
- University of Science and Education, The University of Da Nang, Da Nang City550000, Viet Nam
| | - Ngoc Thuy Luong
- Vietnam Petroleum Institute, Ho Chi Minh City700000, Viet Nam
| | - Ngoc Chung Le
- DaLat University, Dalat University, 01 Phu Dong Thien Vuong, Da Lat City670000, Viet Nam
| | - Ngoc-Tuan Nguyen
- Dalat Nuclear Research Institute, 01 Nguyen Tu Luc, Da Lat City670000, Viet Nam
| | - Thien-Hoang Ho
- Dong Nai University, Le Quy Don Street, Bien Hoa City, Dong Nai810000, Viet Nam
| | - Xuan Dong Tran
- Institute of Fundamental and Applied Sciences, Duy Tan University, 06 Tran Nhat Duat, Ho Chi Minh City700000, Viet Nam
- Faculty of Natural Sciences, Duy Tan University, 03 Quang Trung, Da Nang City550000, Viet Nam
| | - Phong D Tran
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi City100000, Viet Nam
| | - Hung Q Nguyen
- Institute of Fundamental and Applied Sciences, Duy Tan University, 06 Tran Nhat Duat, Ho Chi Minh City700000, Viet Nam
- Faculty of Natural Sciences, Duy Tan University, 03 Quang Trung, Da Nang City550000, Viet Nam
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5
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Afshani J, Perez Mellor A, Bürgi T, Hagemann H. Crystallization of SrAl 12O 19 Nanocrystals from Amorphous Submicrometer Particles. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2022; 126:19336-19345. [PMID: 36425001 PMCID: PMC9677969 DOI: 10.1021/acs.jpcc.2c04284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Advanced instrumentation and modern analysis tools such as transmission electron microscopy (TEM) have led to phenomenal progress in understanding crystallization, in particular from solution, which is a prerequisite for the design-based preparation of a target crystal. Nevertheless, little has been understood about the crystallization pathway under high-temperature annealing (HTA) conditions. Metal oxide crystals are prominent materials that are usually obtained via HTA. Despite the widespread application of hydro-/solvothermal methods on the laboratory scale, HTA is the preferred method in many industries for the mass production of metal oxide crystals. However, poor control over the morphology and grain sizes of these crystals under extreme HTA conditions limits their applications. Here, applying ex-situ TEM, the transformation of a single amorphous spherical submicrometer precursor particle of SrAl12O19 (SA6) at 1150 °C toward a nanosized thermodynamically favored hexagonal crystal is explored. It is illustrated in real space, step by step, how both kinetic and thermodynamic factors contribute to this faceting and morphology evolution. These results demonstrate a nonclassical nucleation and growth process consisting of densification, crystallite domain formation, oriented attachment, surface nucleation, 2-dimensional (2D) growth, and surface diffusion of the atoms to eventually result in the formation of a hexagonal platelet crystal. The TEM images further delineate a parent crystal driving the crystal lattice and morphological orientation of a network of interconnected platelets.
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Affiliation(s)
- Jafar Afshani
- Département de Chimie Physique, Université de Genève, Quai Ernest-Ansermet 30, Genève1211, Switzerland
| | - Ariel Perez Mellor
- Département de Chimie Physique, Université de Genève, Quai Ernest-Ansermet 30, Genève1211, Switzerland
| | - Thomas Bürgi
- Département de Chimie Physique, Université de Genève, Quai Ernest-Ansermet 30, Genève1211, Switzerland
| | - Hans Hagemann
- Département de Chimie Physique, Université de Genève, Quai Ernest-Ansermet 30, Genève1211, Switzerland
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6
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Portehault D, Gómez-Recio I, Baron MA, Musumeci V, Aymonier C, Rouchon V, Le Godec Y. Geoinspired syntheses of materials and nanomaterials. Chem Soc Rev 2022; 51:4828-4866. [PMID: 35603716 DOI: 10.1039/d0cs01283a] [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 search for new materials is intimately linked to the development of synthesis methods. In the current urge for the sustainable synthesis of materials, taking inspiration from Nature's ways to process matter appears as a virtuous approach. In this review, we address the concept of geoinspiration for the design of new materials and the exploration of new synthesis pathways. In geoinspiration, materials scientists take inspiration from the key features of various geological systems and processes occurring in nature, to trigger the formation of artificial materials and nanomaterials. We discuss several case studies of materials and nanomaterials to highlight the basic geoinspiration concepts underlying some synthesis methods: syntheses in water and supercritical water, thermal shock syntheses, molten salt synthesis and high pressure synthesis. We show that the materials emerging from geoinspiration exhibit properties differing from materials obtained by other pathways, thus demonstrating that the field opens up avenues to new families of materials and nanomaterials. This review focuses on synthesis methodologies, by drawing connections between geosciences and materials chemistry, nanosciences, green chemistry, and environmental sciences.
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Affiliation(s)
- David Portehault
- Sorbonne Université, CNRS, Laboratoire Chimie de la Matière Condensée de Paris (CMCP), 4 place Jussieu, 75005 Paris, France.
| | - Isabel Gómez-Recio
- Sorbonne Université, CNRS, Laboratoire Chimie de la Matière Condensée de Paris (CMCP), 4 place Jussieu, 75005 Paris, France.
| | - Marzena A Baron
- Sorbonne Université, CNRS, Laboratoire Chimie de la Matière Condensée de Paris (CMCP), 4 place Jussieu, 75005 Paris, France.
| | - Valentina Musumeci
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Cyril Aymonier
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Virgile Rouchon
- IFP Energies nouvelles (IFPEN), Rond point de l'échangeur de Solaize - BP 3, 69360 Solaize, France
| | - Yann Le Godec
- Sorbonne Université, CNRS, MNHN, IRD, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), 4 place Jussieu, F-75005, Paris, France
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7
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Hatakeyama T, Okamoto NL, Otake S, Sato H, Li H, Ichitsubo T. Excellently balanced water-intercalation-type heat-storage oxide. Nat Commun 2022; 13:1452. [PMID: 35301294 PMCID: PMC8931080 DOI: 10.1038/s41467-022-28988-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 02/08/2022] [Indexed: 11/27/2022] Open
Abstract
Importance of heat storage materials has recently been increasing. Although various types of heat storage materials have been reported to date, there are few well-balanced energy storage materials in terms of long lifetime, reversibility, energy density, reasonably fast charge/discharge capability, and treatability. Here we report an interesting discovery that a commonly known substance, birnessite-type layered manganese dioxide with crystal water (δ-type K0.33MnO2 ⋅ nH2O), exhibits a water-intercalation mechanism and can be an excellently balanced heat storage material, from the above views, that can be operated in a solid state with water as a working pair. The volumetric energy density exceeds 1000 MJ m−3 (at n ~ 0.5), which is close to the ideally maximum value and the best among phase-change materials. The driving force for the water intercalation is also validated by the ab initio calculations. The proposed mechanism would provide an optimal solution for a heat-storage strategy towards low-grade waste-heat applications. There are few well-balanced heat storage materials up to date. Here, the authors report that δ-type K0.33MnO2 ∙ nH2O can be an excellently balanced heat storage material exhibiting a “water-intercalation mechanism”.
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Affiliation(s)
- Takuya Hatakeyama
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan.,Graduate School of Engineering, Tohoku University 6-6-01 Aoba, Aramaki, Aoba-ku, Sendai, 980-8579, Japan
| | - Norihiko L Okamoto
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan.
| | - Satoshi Otake
- Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo, 196-8666, Japan
| | - Hiroaki Sato
- Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo, 196-8666, Japan
| | - Hongyi Li
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Tetsu Ichitsubo
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan.
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8
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Liu J, Sheng A, Li X, Arai Y, Ding Y, Nie M, Yan M, Rosso KM. Understanding the Importance of Labile Fe(III) during Fe(II)-Catalyzed Transformation of Metastable Iron Oxyhydroxides. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:3801-3811. [PMID: 35188748 DOI: 10.1021/acs.est.1c08044] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Transformation of metastable Fe(III) oxyhydroxides is a prominent process in natural environments and can be significantly accelerated by the coexisting aqueous Fe(II) (Fe(II)aq). Recent evidence points to the solution mass transfer of labile Fe(III) (Fe(III)labile) as the primary intermediate species of general importance. However, a mechanistic aspect that remains unclear is the dependence of phase outcomes on the identity of the metastable Fe(III) oxyhydroxide precursor. Here, we compared the coupled evolution of Fe(II) species, solid phases, and Fe(III)labile throughout the Fe(II)-catalyzed transformation of lepidocrocite (Lp) versus ferrihydrite (Fh) at equal Fe(III) mass loadings with 0.2-1.0 mM Fe(II)aq at pH = 7.0. Similar to Fh, the conversion of Lp to product phases occurs by a dissolution-reprecipitation mechanism mediated by Fe(III)labile that seeds the nucleation of products. Though for Fh we observed a transformation to goethite (Gt), accompanied by the transient emergence and decline of Lp, for initial Lp we observed magnetite (Mt) as the main product. A linear correlation between the formation rate of Mt and the effective supersaturation in terms of Fe(III)labile concentration shows that Fe(II)-induced transformation of Lp into Mt is governed by the classical nucleation theory. When Lp is replaced by equimolar Gt, Mt formation is suppressed by opening a lower barrier pathway to Gt by heterogeneous nucleation and growth on the added Gt seeds. The collective findings add to the mechanistic understanding of factors governing phase selections that impact iron bioavailability, system redox potential, and the fate and transport of coupled elements.
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Affiliation(s)
- Juan Liu
- The Key Laboratory of Water and Sediment Sciences, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Anxu Sheng
- The Key Laboratory of Water and Sediment Sciences, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Xiaoxu Li
- The Key Laboratory of Water and Sediment Sciences, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Yuji Arai
- Department of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign, 1102 South Goodwin Avenue, Urbana, Illinois 61801, United States
| | - Yuefei Ding
- The Key Laboratory of Water and Sediment Sciences, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Mingjun Nie
- The Key Laboratory of Water and Sediment Sciences, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Mingquan Yan
- The Key Laboratory of Water and Sediment Sciences, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Kevin M Rosso
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
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9
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Hong J, Bae JH, Jo H, Park HY, Lee S, Hong SJ, Chun H, Cho MK, Kim J, Kim J, Son Y, Jin H, Suh JY, Kim SC, Roh HK, Lee KH, Kim HS, Chung KY, Yoon CW, Lee K, Kim SH, Ahn JP, Baik H, Kim GH, Han B, Jin S, Hyeon T, Park J, Son CY, Yang Y, Lee YS, Yoo SJ, Chun DW. Metastable hexagonal close-packed palladium hydride in liquid cell TEM. Nature 2022; 603:631-636. [PMID: 35322249 DOI: 10.1038/s41586-021-04391-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 12/23/2021] [Indexed: 01/27/2023]
Abstract
Metastable phases-kinetically favoured structures-are ubiquitous in nature1,2. Rather than forming thermodynamically stable ground-state structures, crystals grown from high-energy precursors often initially adopt metastable structures depending on the initial conditions, such as temperature, pressure or crystal size1,3,4. As the crystals grow further, they typically undergo a series of transformations from metastable phases to lower-energy and ultimately energetically stable phases1,3,4. Metastable phases sometimes exhibit superior physicochemical properties and, hence, the discovery and synthesis of new metastable phases are promising avenues for innovations in materials science1,5. However, the search for metastable materials has mainly been heuristic, performed on the basis of experiences, intuition or even speculative predictions, namely 'rules of thumb'. This limitation necessitates the advent of a new paradigm to discover new metastable phases based on rational design. Such a design rule is embodied in the discovery of a metastable hexagonal close-packed (hcp) palladium hydride (PdHx) synthesized in a liquid cell transmission electron microscope. The metastable hcp structure is stabilized through a unique interplay between the precursor concentrations in the solution: a sufficient supply of hydrogen (H) favours the hcp structure on the subnanometre scale, and an insufficient supply of Pd inhibits further growth and subsequent transition towards the thermodynamically stable face-centred cubic structure. These findings provide thermodynamic insights into metastability engineering strategies that can be deployed to discover new metastable phases.
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Affiliation(s)
- Jaeyoung Hong
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul, Korea
| | - Jee-Hwan Bae
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul, Korea
| | - Hyesung Jo
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Hee-Young Park
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology, Seoul, Korea
| | - Sehyun Lee
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology, Seoul, Korea
| | - Sung Jun Hong
- Integrated Science and Engineering Division, UIC, Yonsei University, Seoul, Korea.,Chemical and Biomolecular Engineering Department, Yonsei University, Seoul, Korea
| | - Hoje Chun
- Chemical and Biomolecular Engineering Department, Yonsei University, Seoul, Korea
| | - Min Kyung Cho
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul, Korea
| | - Juyoung Kim
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul, Korea
| | - Joodeok Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Korea.,School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, Korea
| | - Yongju Son
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Korea.,School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, Korea
| | - Haneul Jin
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology, Seoul, Korea
| | - Jin-Yoo Suh
- Center for Energy Materials Research, Korea Institute of Science and Technology, Seoul, Korea
| | - Sung-Chul Kim
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul, Korea
| | - Ha-Kyung Roh
- Center for Energy Storage Research, Korea Institute of Science and Technology, Seoul, Korea
| | - Kyu Hyoung Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, Korea
| | - Hyung-Seok Kim
- Center for Energy Storage Research, Korea Institute of Science and Technology, Seoul, Korea
| | - Kyung Yoon Chung
- Center for Energy Storage Research, Korea Institute of Science and Technology, Seoul, Korea.,Division of Energy & Environment Technology, KIST School, Korea University of Science and Technology, Seoul, Korea
| | - Chang Won Yoon
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology, Seoul, Korea.,Division of Energy & Environment Technology, KIST School, Korea University of Science and Technology, Seoul, Korea.,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, Korea
| | - Kiryeong Lee
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul, Korea
| | - Seo Hee Kim
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul, Korea
| | - Jae-Pyoung Ahn
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul, Korea
| | | | - Gyeung Ho Kim
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul, Korea
| | - Byungchan Han
- Chemical and Biomolecular Engineering Department, Yonsei University, Seoul, Korea
| | - Sungho Jin
- Materials Science and Engineering Program, Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, CA, USA
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Korea.,School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, Korea
| | - Jungwon Park
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Korea.,School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, Korea.,Institute of Engineering Research, Seoul National University, Seoul, Korea
| | - Chang Yun Son
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology, Pohang, Korea.
| | - Yongsoo Yang
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, Korea.
| | - Young-Su Lee
- Center for Energy Materials Research, Korea Institute of Science and Technology, Seoul, Korea.
| | - Sung Jong Yoo
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology, Seoul, Korea. .,Division of Energy & Environment Technology, KIST School, Korea University of Science and Technology, Seoul, Korea. .,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, Korea.
| | - Dong Won Chun
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul, Korea. .,Center for Energy Materials Research, Korea Institute of Science and Technology, Seoul, Korea.
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10
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Recent Manganese Oxide Octahedral Molecular Sieves (OMS–2) with Isomorphically Substituted Cationic Dopants and Their Catalytic Applications. Catalysts 2021. [DOI: 10.3390/catal11101147] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The present report describes the structural and physical–chemical variations of the potassium manganese oxide mineral, α–MnO2, which is a specific manganese octahedral molecular sieve (OMS) named cryptomelane (K–OMS–2), with different transition metal cations. We will describe some frequently used synthesis methods to obtain isomorphic substituted materials [M]–K–OMS–2 by replacing the original manganese cationic species in a controlled way. It is important to note that one of the main effects of doping is related to electronic environmental changes, as well as to an increase of oxygen species mobility, which is ultimately related to the creation of new vacancies. Given the interest and the importance of these materials, here, we collect the most recent advances in [M]–K–OMS–2 oxides (M = Ag, Ce, Mo, V, Nb, W, In, Zr and Ru) that have appeared in the literature during the last ten years, leaving aside other metal–doped [M]–K–OMS–2 oxides that have already been treated in previous reviews. Besides showing the most important structural and physic-chemical features of these oxides, we will highlight their applications in the field of degradation of pollutants, fine chemistry and electrocatalysis, and will suggest potential alternative applications.
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11
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Dinh MTN, Nguyen CC, Phan MD, Duong MK, Nguyen PHD, Lancelot C, Nguyen DL. Novel cryptomelane nanosheets for the superior catalytic combustion of oxygenated volatile organic compounds. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:126111. [PMID: 34020350 DOI: 10.1016/j.jhazmat.2021.126111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/23/2021] [Accepted: 05/10/2021] [Indexed: 06/12/2023]
Abstract
This work offers a novel pathway to prepare cryptomelane manganese oxides nanosheets as an superior catalyst for the catalytic combustion of oxygenated volatile organic compounds. The tunnel cryptomelane manganese oxides nanosheets were prepared from layered birnessite via simultaneously tuning pH and molar ratio (ROK) of the redox-precipitation between oxalic acid and KMnO4. Thus, few-layered cryptomelane nanosheets possessing the most predominantly exposed (211) facet are generated at low pH (5.2-5.6), which intensifies the surface area of thin crystal cryptomelane nanosheets up to 177 m2g-1 and weakens Mn-O bonds. Moreover, high ROK results in low manganese average oxidation state (AOS), greater oxygen vacancies and better low-temperature reduction and oxygen mobility. Such features significantly maneuver the catalytic activity of the cryptomelane nanosheets catalysts for the complete oxidation of oxygenated volatile organic compound (e.g., 2-propanol, acetone) at low temperature (170-230 °C). Moreover, the catalysts show high stability for 48 h. The presented catalyst discloses an avenue to address current obstacles in the catalytic oxidation of volatile organic compounds.
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Affiliation(s)
- Minh Tuan Nguyen Dinh
- The University of Da-Nang, University of Science and Technology, 54, Nguyen Luong Bang, Da Nang, Viet Nam.
| | - Chinh Chien Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang 50000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang 50000, Viet Nam
| | - Manh Duy Phan
- The University of Da-Nang, University of Science and Technology, 54, Nguyen Luong Bang, Da Nang, Viet Nam
| | - Minh Khoa Duong
- The University of Da-Nang, University of Science and Technology, 54, Nguyen Luong Bang, Da Nang, Viet Nam
| | - Phuc Hoang Duy Nguyen
- Institute of Chemical Technology-Vietnam Academy of Science and Technology, Ho Chi Minh City, Viet Nam
| | - Christine Lancelot
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Dinh Lam Nguyen
- The University of Da-Nang, University of Science and Technology, 54, Nguyen Luong Bang, Da Nang, Viet Nam
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12
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Rasouli HR, Kim J, Mehmood N, Sheraz A, Jo MK, Song S, Kang K, Kasirga TS. Electric-Field-Induced Reversible Phase Transitions in a Spontaneously Ion-Intercalated 2D Metal Oxide. NANO LETTERS 2021; 21:3997-4005. [PMID: 33881885 DOI: 10.1021/acs.nanolett.1c00735] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electric field driven reversible phase transitions in two-dimensional (2D) materials are appealing for their potential in switching applications. Here, we introduce potassium intercalated MnO2 as an exemplary case. We demonstrate the synthesis of large-area single-crystal layered MnO2 via chemical vapor deposition as thin as 5 nm. These crystals are spontaneously intercalated by potassium ions during the synthesis. We showed that the charge transport in 2D K-MnO2 is dominated by motion of hydrated potassium ions in the interlayer space. Under a few volts bias, separation of potassium and the structural water leads to formation of different phases at the opposite terminals, and at larger biases K-MnO2 crystals exhibit reversible layered-to-spinel phase transition. These phase transitions are accompanied by electrical and optical changes in the material. We used the electric field driven ionic motion in K-MnO2 based devices to demonstrate the memristive capabilities of two terminal devices.
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Affiliation(s)
- Hamid Reza Rasouli
- Institute of Materials Science and Nanotechnology, Bilkent University UNAM, Ankara 06800, Turkey
| | - Jeongho Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Naveed Mehmood
- Institute of Materials Science and Nanotechnology, Bilkent University UNAM, Ankara 06800, Turkey
| | - Ali Sheraz
- Department of Physics, Bilkent University, Ankara 06800, Turkey
| | - Min-Kyung Jo
- Korea Research Institute of Standards & Science (KRISS), Daejeon 34113, Republic of Korea
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Seungwoo Song
- Korea Research Institute of Standards & Science (KRISS), Daejeon 34113, Republic of Korea
| | - Kibum Kang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Talip Serkan Kasirga
- Institute of Materials Science and Nanotechnology, Bilkent University UNAM, Ankara 06800, Turkey
- Department of Physics, Bilkent University, Ankara 06800, Turkey
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13
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Kim H, Choi W, Yoon J, Lee E, Yoon WS. Polymorphic Effects on Electrochemical Performance of Conversion-Based MnO 2 Anode Materials for Next-Generation Li Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006433. [PMID: 33705600 DOI: 10.1002/smll.202006433] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/27/2021] [Indexed: 06/12/2023]
Abstract
In this study, four different MnO2 polymorphs are synthesized with a controlled morphology of hollow porous structures to systematically investigate the influences of polymorphs in conversion-based material. As the structure of these materials transforms into nanosized metal and maintains an extremely low-crystalline phase during cell operation, the effects of polymorphs are overlooked as compared to the case of insertion-based materials. Thus, differences in the ion storage behaviors among various MnO2 polymorphs are not well identified. Herein, the structural changes, charge storage reaction, and electrochemical performance of the different MnO2 polymorphs are investigated in detail. The experimental results demonstrate that the charge storage reactions, as part of which spinel-phased MnO2 formation is observed after lithiation and delithiation instead of recovery of the original phases, are similar for all the samples. However, the electrochemical performance varies depending on the initial crystal structure. Among the four polymorphs, the spinel-type λ-MnO2 delivers the highest reversible capacity of ≈1270 mAh g-1 . The structural similarity between the cycled and pristine states of λ-MnO2 induces faster kinetics, resulting in the better electrochemical performance. These findings suggest that polymorphs are another important factor to consider when designing high-performance materials for next-generation rechargeable batteries.
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Affiliation(s)
- Hyunwoo Kim
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Woosung Choi
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Jaesang Yoon
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Eunkang Lee
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Won-Sub Yoon
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, South Korea
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14
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Yang P, Wen K, Beyer KA, Xu W, Wang Q, Ma D, Wu J, Zhu M. Inhibition of Oxyanions on Redox-driven Transformation of Layered Manganese Oxides. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:3419-3429. [PMID: 33600156 DOI: 10.1021/acs.est.0c06310] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Layered manganese (Mn) oxides, such as birnessite, can reductively transform into other phases and thereby affect the environmental behavior of Mn oxides. Solution chemistry strongly influences the transformation, but the effects of oxyanions remain unknown. We determined the products and rates of Mn(II)-driven reductive transformation of δ-MnO2, a nanoparticulate hexagonal birnessite, in the presence of phosphate or silicate at pH 6-8 and a wide range of Mn(II)/MnO2 molar ratios. Without the oxyanions, δ-MnO2 transforms into triclinic birnessite (T-bir) and 4 × 4 tunneled Mn oxide (TMO) at low Mn(II)/MnO2 ratios (0.09 and 0.13) and into δ-MnOOH and Mn3O4 with minor poorly crystallized α- and γ-MnOOH at high Mn(II)/MnO2 ratios (0.5 and 1). The presence of phosphate or silicate substantially decreases the rate and extent of the above transformation, probably due to adsorption of the oxyanions on layer edges or the formation of Mn(II,III)-oxyanion ternary complexes on vacancies of δ-MnO2, adversely interfering with electron transfer, Mn(III) distribution, and structural rearrangements. The oxyanions also reduce the crystallinity and particle sizes of the transformation products, ascribed to adsorption of the oxyanions on the products, preventing their further particle growth. This study enriches our understanding of the solution chemistry control on redox-driven transformation of Mn oxides.
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Affiliation(s)
- Peng Yang
- Department of Ecosystem Science and Management, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Ke Wen
- Department of Ecosystem Science and Management, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Kevin A Beyer
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Wenqian Xu
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Qian Wang
- Department of Ecosystem Science and Management, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Dong Ma
- Department of Ecosystem Science and Management, University of Wyoming, Laramie, Wyoming 82071, United States
- College of Resource and Environment, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - Juan Wu
- Department of Ecosystem Science and Management, University of Wyoming, Laramie, Wyoming 82071, United States
- College of Resource and Environment, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - Mengqiang Zhu
- Department of Ecosystem Science and Management, University of Wyoming, Laramie, Wyoming 82071, United States
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15
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Egorova AA, Bushkova TM, Kolesnik IV, Yapryntsev AD, Kottsov SY, Baranchikov AE. Selective Synthesis of Manganese Dioxide Polymorphs by the Hydrothermal Treatment of Aqueous KMnO4 Solutions. RUSS J INORG CHEM+ 2021. [DOI: 10.1134/s0036023621020066] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Radinger H, Connor P, Stark R, Jaegermann W, Kaiser B. Manganese Oxide as an Inorganic Catalyst for the Oxygen Evolution Reaction Studied by X‐Ray Photoelectron and Operando Raman Spectroscopy. ChemCatChem 2020. [DOI: 10.1002/cctc.202001756] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hannes Radinger
- Surface Science Laboratory Institute of Materials Science TU Darmstadt 64287 Darmstadt Germany
- Institute for Applied Materials Karlsruhe Institute of Technology 76344 Eggenstein-Leopoldshafen Germany
| | - Paula Connor
- Surface Science Laboratory Institute of Materials Science TU Darmstadt 64287 Darmstadt Germany
| | - Robert Stark
- Physics of Surfaces Institute of Materials Science TU Darmstadt 64287 Darmstadt Germany
| | - Wolfram Jaegermann
- Surface Science Laboratory Institute of Materials Science TU Darmstadt 64287 Darmstadt Germany
| | - Bernhard Kaiser
- Surface Science Laboratory Institute of Materials Science TU Darmstadt 64287 Darmstadt Germany
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17
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Kim SJ, Wu D, Sadique N, Quilty CD, Wu L, Marschilok AC, Takeuchi KJ, Takeuchi ES, Zhu Y. Unraveling the Dissolution-Mediated Reaction Mechanism of α-MnO 2 Cathodes for Aqueous Zn-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2005406. [PMID: 33166057 DOI: 10.1002/smll.202005406] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/07/2020] [Indexed: 06/11/2023]
Abstract
Aqueous Zn/α-MnO2 batteries have attracted immense interest owing to their high energy density, low cost, and safety, making them desirable for future large-scale energy application. Despite these merits, the comprehensive understanding of their reaction mechanism has been elusive due to the limitations of standard bulk characterization. Here, via transmission electron microscopy, the dissolution-mediated reaction mechanism of a Zn/α-MnO2 system is discovered and explored in full scope to involve reversible formation of Zn4 SO4 (OH)6 ·xH2 O and "birnessite-like" Zn-MnOx phase upon cycling. Overall, α-MnO2 acts primarily as a source for cell activation through dissolution and thus is not directly involved in the Zn redox chemistry. This microscopic study offers a unique knowledge on the unconventional reaction chemistry of Zn/α-MnO2 batteries.
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Affiliation(s)
- Sung Joo Kim
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, 11973, USA
- Energy and Photon Sciences Directorate, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Daren Wu
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Nahian Sadique
- Department of Chemistry, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Calvin D Quilty
- Department of Chemistry, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Lijun Wu
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Amy C Marschilok
- Energy and Photon Sciences Directorate, Brookhaven National Laboratory, Upton, NY, 11973, USA
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY, 11794, USA
- Department of Chemistry, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Kenneth J Takeuchi
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY, 11794, USA
- Department of Chemistry, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Esther S Takeuchi
- Energy and Photon Sciences Directorate, Brookhaven National Laboratory, Upton, NY, 11973, USA
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY, 11794, USA
- Department of Chemistry, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Yimei Zhu
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, 11973, USA
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY, 11794, USA
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18
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Ghosh SK. Diversity in the Family of Manganese Oxides at the Nanoscale: From Fundamentals to Applications. ACS OMEGA 2020; 5:25493-25504. [PMID: 33073076 PMCID: PMC7557223 DOI: 10.1021/acsomega.0c03455] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 09/23/2020] [Indexed: 05/02/2023]
Abstract
The interesting chemistry of manganese is due to its various oxidation states. The possibility of several oxidation states has offered the element a special position among the transition metal elements in the periodic table. Amidst the possible oxidation states of manganese (in the range of -3 to +7), the +2, +3, and +4 oxidation states are the most prevalent in nature. Manganese possesses the ability to form multiple bonds with oxygen through spontaneous oxidation to a variety of stoichiometric oxides/hydroxides/oxyhydroxides that are collectively coined as "manganese oxides". However, using the recent advances in the synthetic strategies and characterization techniques over the past couple of decades, the investigation of the physicochemical properties of manganese oxides has been extended up to the nanoscale dimensions beyond the molecular. Moreover, the family of the manganese oxides also includes a series of porous architectures that are, often, stabilized at the nanoscale dimensions. Exquisite synthetic control over the size, shape, organization, and mass production of a variety of oxides at the nanoscale dimensions renders outstanding structural, optical, catalytic, magnetic, and transport properties. The tunable properties along with the chemical and biological accessibility open up new opportunities in a diverse range of niche applications critical to global society. Therefore, beyond the multivariance, polymorphism, thermodynamics, phase transition, crystallinity, magnetism, semiconducting behavior, and biogenecity may serve as the key factors to describe the compelling applications in health and other fields and to further understand the manganese oxides at the nanoscale.
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19
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Dessie Y, Tadesse S, Eswaramoorthy R. Physicochemical parameter influences and their optimization on the biosynthesis of MnO2 nanoparticles using Vernonia amygdalina leaf extract. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.06.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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20
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Sokolikova MS, Mattevi C. Direct synthesis of metastable phases of 2D transition metal dichalcogenides. Chem Soc Rev 2020; 49:3952-3980. [PMID: 32452481 DOI: 10.1039/d0cs00143k] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The different polymorphic phases of transition metal dichalcogenides (TMDs) have attracted enormous interest in the last decade. The metastable metallic and small band gap phases of group VI TMDs displayed leading performance for electrocatalytic hydrogen evolution, high volumetric capacitance and some of them exhibit large gap quantum spin Hall (QSH) insulating behaviour. Metastable 1T(1T') phases require higher formation energy, as compared to the thermodynamically stable 2H phase, thus in standard chemical vapour deposition and vapour transport processes the materials normally grow in the 2H phases. Only destabilization of their 2H phase via external means, such as charge transfer or high electric field, allows the conversion of the crystal structure into the 1T(1T') phase. Bottom-up synthesis of materials in the 1T(1T') phases in measurable quantities would broaden their prospective applications and practical utilization. There is an emerging evidence that some of these 1T(1T') phases can be directly synthesized via bottom-up vapour- and liquid-phase methods. This review will provide an overview of the synthesis strategies which have been designed to achieve the crystal phase control in TMDs, and the chemical mechanisms that can drive the synthesis of metastable phases. We will provide a critical comparison between growth pathways in vapour- and liquid-phase synthesis techniques. Morphological and chemical characteristics of synthesized materials will be described along with their ability to act as electrocatalysts for the hydrogen evolution reaction from water. Phase stability and reversibility will be discussed and new potential applications will be introduced. This review aims at providing insights into the fundamental understanding of the favourable synthetic conditions for the stabilization of metastable TMD crystals and at stimulating future advancements in the field of large-scale synthesis of materials with crystal phase control.
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21
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Gao Y, Nolan AM, Du P, Wu Y, Yang C, Chen Q, Mo Y, Bo SH. Classical and Emerging Characterization Techniques for Investigation of Ion Transport Mechanisms in Crystalline Fast Ionic Conductors. Chem Rev 2020; 120:5954-6008. [DOI: 10.1021/acs.chemrev.9b00747] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yirong Gao
- University of Michigan−Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai CN-200240, China
| | - Adelaide M. Nolan
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Peng Du
- University of Michigan−Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai CN-200240, China
| | - Yifan Wu
- University of Michigan−Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai CN-200240, China
| | - Chao Yang
- University of Michigan−Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai CN-200240, China
| | - Qianli Chen
- University of Michigan−Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai CN-200240, China
| | - Yifei Mo
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
- Maryland Energy Innovation Institute, University of Maryland, College Park, Maryland 20742, United States
| | - Shou-Hang Bo
- University of Michigan−Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai CN-200240, China
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22
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Corpuz RD, De Juan-Corpuz LM, Nguyen MT, Yonezawa T, Wu HL, Somwangthanaroj A, Kheawhom S. Binder-Free α-MnO 2 Nanowires on Carbon Cloth as Cathode Material for Zinc-ion Batteries. Int J Mol Sci 2020; 21:E3113. [PMID: 32354107 PMCID: PMC7247688 DOI: 10.3390/ijms21093113] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/18/2020] [Accepted: 04/26/2020] [Indexed: 11/17/2022] Open
Abstract
Recently, rechargeable zinc-ion batteries (ZIBs) have gained a considerable amount of attention due to their high safety, low toxicity, abundance, and low cost. Traditionally, a composite manganese oxide (MnO2) and a conductive carbon having a polymeric binder are used as a positive electrode. In general, a binder is employed to bond all materials together and to prevent detachment and dissolution of the active materials. Herein, the synthesis of α-MnO2 nanowires on carbon cloth via a simple one-step hydrothermal process and its electrochemical performance, as a binder-free cathode in aqueous and nonaqueous-based ZIBs, is duly reported. Morphological and elemental analyses reveal a single crystal α-MnO2 having homogeneous nanowire morphology with preferential growth along {001}. It is significant that analysis of the electrochemical performance of the α-MnO2 nanowires demonstrates more stable capacity and superior cyclability in a dimethyl sulfoxide (DMSO) electrolyte ZIB than in an aqueous electrolyte system. This is because DMSO can prevent irreversible proton insertion as well as unfavorable dendritic zinc deposition. The application of the binder-free α-MnO2 nanowires cathode in DMSO can promote follow-up research on the high cyclability of ZIBs.
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Affiliation(s)
- Ryan Dula Corpuz
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (R.D.C.); (L.M.D.J.-C.); (A.S.)
| | - Lyn Marie De Juan-Corpuz
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (R.D.C.); (L.M.D.J.-C.); (A.S.)
- Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila 1015, Philippines
- Department of Chemical Engineering, Faculty of Engineering, University of Santo Tomas, Manila 1015, Philippines
| | - Mai Thanh Nguyen
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Hokkaido 060-8628, Japan; (M.T.N.); (T.Y.)
| | - Tetsu Yonezawa
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Hokkaido 060-8628, Japan; (M.T.N.); (T.Y.)
- Institute of Business-Regional Collaborations, Hokkaido University, Hokkaido 001-0021, Japan
| | - Heng-Liang Wu
- Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan;
- Center of Atomic Initiative for New Materials, National Taiwan University, Taipei 10617, Taiwan
| | - Anongnat Somwangthanaroj
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (R.D.C.); (L.M.D.J.-C.); (A.S.)
| | - Soorathep Kheawhom
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (R.D.C.); (L.M.D.J.-C.); (A.S.)
- Research Unit of Advanced Materials for Energy Storage, Chulalongkorn University, Bangkok 10330, Thailand
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23
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Amiri M, Martin NP, Sadeghi O, Nyman M. Bismuth for Controlled Assembly/Disassembly of Transition-Metal Oxo Clusters, Defining Reaction Pathways in Inorganic Synthesis and Nature. Inorg Chem 2020; 59:3471-3481. [PMID: 32078309 DOI: 10.1021/acs.inorgchem.9b03646] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Trivalent bismuth is a unique heavy p-block ion. It is highly insoluble in water, due to strong hydrolysis tendencies, and known for low toxicity. Its lone pair is structure-directing, providing framework materials with structural flexibility, leading to piezoelectric and multiferroic function. The flexibility it provides is also advantageous for dopants and vacancies, giving rise to conductivity, luminescence, color, and catalytic properties. We are exploiting Bi3+ in a completely different way, as a knob to "tune" the solubility and stability of transition-metal oxo clusters. The lone pair allows capping and isolation of metastable cluster forms for solid-state and solution characterization. With controlled release of the bismuth (via bismuth oxyhalide metathesis), the metal oxo clusters can be retained in aqueous solution, and we can track their reaction pathways and conversion to related metal oxyhydroxides. Here we present isolation of a bismuth-stabilized MnIV cluster, fully formulated [MnIV6Bi2KO9(CH3COO)10(H2O)3(NO3)2] (Mn6Bi2). In addition to characterization by single-crystal X-ray diffraction, solution characterization in acetonitrile and acetonitrile-acetic acid by small-angle X-ray scattering (SAXS) and electrospray ionization mass spectrometry shows high stability and the tendency of Mn6Bi2 to link into chains by bridging the bismuth (and potassium) caps with nitrate and acetate ligands. On the other hand, the dissolution of Mn6Bi2 in water, with and without metathesis of the bismuth, leads to the precipitation of related oxyhydroxide phases, which we characterized by transmission electron microscopy (TEM), electron diffraction, and energy-dispersive spectroscopy, and the conversion pathway by SAXS. Without removal of bismuth, amorphous manganese/bismuth oxyhydroxides precipitate within a day. On the other hand, metathesis of BiOBr yields a solution containing soluble manganese oxyhydroxide prenucleation clusters that assemble and precipitate over 10 days. This allows tracking of the reaction pathway via SAXS. We observe one-dimensional growth of species, followed by the precipitation of nanocrystalline hollandite (identified by TEM). The hollandite is presumably templated by the K+, originally in the crystalline lattice of Mn6Bi2. In this Forum Article that combines new results and prospective, we compare these results to prior studies in which we first introduced the use of capping Bi3+ to stabilize reactive clusters, followed by destabilization to understand reaction pathways in synthesis and low-temperature geochemistry.
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Affiliation(s)
- Mehran Amiri
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Nicolas P Martin
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Omid Sadeghi
- Department of Physical Sciences, Linn-Benton Community College, Albany Oregon 97321, United States
| | - May Nyman
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
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Jung H, Taillefert M, Sun J, Wang Q, Borkiewicz OJ, Liu P, Yang L, Chen S, Chen H, Tang Y. Redox Cycling Driven Transformation of Layered Manganese Oxides to Tunnel Structures. J Am Chem Soc 2020; 142:2506-2513. [PMID: 31913621 DOI: 10.1021/jacs.9b12266] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Mn oxides are among the most ubiquitous minerals on Earth and play critical roles in numerous elemental cycles in biotic/abiotic loops as the key redox center. Yet, it has long puzzled geochemists why the laboratory synthesis of todorokite, a tunnel-structured Mn oxide, is extremely difficult while it is the dominant form over other tunneled phases in low-temperature natural environments. This study employs a novel electrochemical method to mimic the cyclic redox reactions occurring over long geological time scales in an accelerated manner. The results revealed that the kinetics and electron flux of the cyclic redox reaction are key to the layer-to-tunnel structure transformation of Mn oxides, provided new insights for natural biotic and abiotic redox reactions, and explained the dominance of todorokite in nature.
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Affiliation(s)
| | | | - Jingying Sun
- Department of Physics and Texas Center for Superconductivity , University of Houston , Houston , Texas 77204 , United States
| | | | - Olaf J Borkiewicz
- Advanced Photon Source , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | | | | | - Shuo Chen
- Department of Physics and Texas Center for Superconductivity , University of Houston , Houston , Texas 77204 , United States
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Strategy to control magnetic coercivity by elucidating crystallization pathway-dependent microstructural evolution of magnetite mesocrystals. Nat Commun 2020; 11:298. [PMID: 31941908 PMCID: PMC6962372 DOI: 10.1038/s41467-019-14168-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 12/16/2019] [Indexed: 01/25/2023] Open
Abstract
Mesocrystals are assemblies of smaller crystallites and have attracted attention because of their nonclassical crystallization pathway and emerging collective functionalities. Understanding the mesocrystal crystallization mechanism in chemical routes is essential for precise control of size and microstructure, which influence the function of mesocrystals. However, microstructure evolution from the nucleus stage through various crystallization pathways remains unclear. We propose a unified model on the basis of the observation of two crystallization pathways, with different ferric (oxyhydr)oxide polymorphs appearing as intermediates, producing microstructures of magnetite mesocrystal via different mechanisms. An understanding of the crystallization mechanism enables independent chemical control of the mesocrystal diameter and crystallite size, as manifested by a series of magnetic coercivity measurements. We successfully implement an experimental model system that exhibits a universal crystallite size effect on the magnetic coercivity of mesocrystals. These findings provide a general approach to controlling the microstructure through crystallization pathway selection, thus providing a strategy for controlling magnetic coercivity in magnetite systems. Transient metastable intermediates play an important role in the crystallization process. Here, the authors unveil the microstructural changes in magnetite mesocrystals that depend on the intermediate polymorphism and the universal crystallite size effect on the magnetic coercivity of mesocrystals.
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Chen K, Liang F, Lu X, Xue D. Toward materials-by-design: achieving functional materials with physical and chemical effects. NANOTECHNOLOGY 2020; 31:024002. [PMID: 31557733 DOI: 10.1088/1361-6528/ab4833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Advances in renewable and sustainable energy technologies critically depend on our ability to rationally design and process target materials with optimized performances. Advanced material design and discovery are ideally involved in material prediction, synthesis and characterization. Control of material crystallization enables the rational design and discovery of novel functional inorganic materials in multi-scale. Material processing can be adjusted by various physical fields and chemical effects at different energy states. Material microstructure, architecture and functionality can thus be modified by multiple design methodologies. In this review, we show typical examples using physical and chemical methods to shape inorganic functional materials and evaluate their specific applications in Na-air batteries, Li-ion batteries and supercapacitors. Furthermore, this review also provides insight into the understanding of synthesis-structure relationship of inorganic functional materials.
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Affiliation(s)
- Kunfeng Chen
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
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Chen K, Liang F, Xue D. La3+:Ni–Cl oxyhydroxide gels with enhanced electroactivity as positive materials for hybrid supercapacitors. Dalton Trans 2020; 49:1107-1115. [DOI: 10.1039/c9dt04410h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Novel poorly crystalline La3+:Ni–Cl oxyhydroxide gels with sufficient electroactive sites and atomically homogeneous distribution of Ni2+, La3+, and Cl− ions were synthesized.
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Affiliation(s)
- Kunfeng Chen
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Feng Liang
- Faculty of Metallurgical and Energy Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization
| | - Dongfeng Xue
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
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Fleer NA, Thomas MP, Andrews JL, Waetzig GR, Gonzalez O, Liu GW, Guiton BS, Banerjee S. Epitaxial stabilization versus interdiffusion: synthetic routes to metastable cubic HfO 2 and HfV 2O 7 from the core-shell arrangement of precursors. NANOSCALE 2019; 11:21354-21363. [PMID: 31674612 DOI: 10.1039/c9nr07316g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Metastable materials that represent excursions from thermodynamic minima are characterized by distinctive structural motifs and electronic structure, which frequently underpins new function. The binary oxides of hafnium present a rich diversity of crystal structures and are of considerable technological importance given their high dielectric constants, refractory characteristics, radiation hardness, and anion conductivity; however, high-symmetry tetragonal and cubic polymorphs of HfO2 are accessible only at substantially elevated temperatures (1720 and 2600 °C, respectively). Here, we demonstrate that the core-shell arrangement of VO2 and amorphous HfO2 promotes outwards oxygen diffusion along an electropositivity gradient and yields an epitaxially matched V2O3/HfO2 interface that allows for the unprecedented stabilization of the metastable cubic polymorph of HfO2 under ambient conditions. Free-standing cubic HfO2, otherwise accessible only above 2600 °C, is stabilized by acid etching of the vanadium oxide core. In contrast, interdiffusion under oxidative conditions yields the negative thermal expansion material HfV2O7. Variable temperature powder X-ray diffraction demonstrate that the prepared HfV2O7 exhibits pronounced negative thermal expansion in the temperature range between 150 and 700 °C. The results demonstrate the potential of using epitaxial crystallographic relationships to facilitate preferential nucleation of otherwise inaccessible metastable compounds.
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Affiliation(s)
- Nathan A Fleer
- Department of Chemistry, Texas A&M University, 3255 TAMU, 580 Ross St, College Station, Texas 77843, USA. and Department of Materials Science and Engineering, Texas A&M University, 575 Ross St, College Station, Texas 77843, USA
| | - Melonie P Thomas
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, USA.
| | - Justin L Andrews
- Department of Chemistry, Texas A&M University, 3255 TAMU, 580 Ross St, College Station, Texas 77843, USA. and Department of Materials Science and Engineering, Texas A&M University, 575 Ross St, College Station, Texas 77843, USA
| | - Gregory R Waetzig
- Department of Chemistry, Texas A&M University, 3255 TAMU, 580 Ross St, College Station, Texas 77843, USA. and Department of Materials Science and Engineering, Texas A&M University, 575 Ross St, College Station, Texas 77843, USA
| | - Oscar Gonzalez
- Department of Chemistry, Texas A&M University, 3255 TAMU, 580 Ross St, College Station, Texas 77843, USA.
| | - Guan-Wen Liu
- Department of Chemistry, Texas A&M University, 3255 TAMU, 580 Ross St, College Station, Texas 77843, USA. and Department of Materials Science and Engineering, Texas A&M University, 575 Ross St, College Station, Texas 77843, USA
| | - Beth S Guiton
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, USA.
| | - Sarbajit Banerjee
- Department of Chemistry, Texas A&M University, 3255 TAMU, 580 Ross St, College Station, Texas 77843, USA. and Department of Materials Science and Engineering, Texas A&M University, 575 Ross St, College Station, Texas 77843, USA
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Corpuz RD, De Juan LMZ, Praserthdam S, Pornprasertsuk R, Yonezawa T, Nguyen MT, Kheawhom S. Annealing induced a well-ordered single crystal δ-MnO 2 and its electrochemical performance in zinc-ion battery. Sci Rep 2019; 9:15107. [PMID: 31641250 PMCID: PMC6805881 DOI: 10.1038/s41598-019-51692-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 10/07/2019] [Indexed: 12/02/2022] Open
Abstract
Herein, the formation and electrochemical performance of a novel binder-free turbostratic stacked/ well-ordered stacked δ-MnO2-carbon fiber composite cathodes in deep eutectic solvent (DES) based zinc-ion battery (ZIB) is reported. Results of morphological, elemental, and structural analyses revealed directly grown and interconnected δ-MnO2 crumpled nanosheets on a carbon fiber substrate. Moreover, an improvement via a simple annealing strategy in the stacking, surface area and conductivity of the δ-MnO2 sheets was observed. Annealing induces the rearrangement of δ-MnO2 sheets resulting in the transformation from turbostratic stacking to a well-ordered stacking of \documentclass[12pt]{minimal}
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\begin{document}$${\delta }$$\end{document}δ-MnO2 sheets, as indicated by the selected area electron diffraction (SAED) hexagonal single crystal pattern. Besides, the formation of the well-ordered stacking of \documentclass[12pt]{minimal}
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\begin{document}$${\delta }$$\end{document}δ-MnO2 sheets exhibited improved electrochemical performance and cyclability, as cathode material for ZIB. The novel strategy described in this study is an essential step for the development of binder-free δ-MnO2-C fiber composite with a well-ordered stacking of δ-MnO2 sheets. This study also demonstrated comparable electrochemical performance between the turbostratic \documentclass[12pt]{minimal}
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\begin{document}$${\delta }$$\end{document}δ-MnO2 sheets and the well-ordered stacked δ-MnO2 sheets.
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Affiliation(s)
- Ryan Dula Corpuz
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.,Department of Physics, School of Science and Engineering, Ateneo de Manila University, Quezon City, 1108, Philippines
| | - Lyn Marie Z De Juan
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.,Department of Chemical Engineering, Faculty of Engineering, University of Santo Tomas, Manila, 1015, Philippines
| | - Supareak Praserthdam
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.,High-performance computing unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10333, Thailand
| | - Rojana Pornprasertsuk
- Department of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.,Research Unit of Advanced Materials for Energy Storage, Chulalongkorn University, Bangkok, 10330, Thailand.,Center of Excellence in Petrochemical and Materials Technology, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Tetsu Yonezawa
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo, Hokkaido, 060-8628, Japan
| | - Mai Thanh Nguyen
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo, Hokkaido, 060-8628, Japan
| | - Soorathep Kheawhom
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand. .,Research Unit of Advanced Materials for Energy Storage, Chulalongkorn University, Bangkok, 10330, Thailand.
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Abstract
Materials discovery has become significantly facilitated and accelerated by high-throughput ab-initio computations. This ability to rapidly design interesting novel compounds has displaced the materials innovation bottleneck to the development of synthesis routes for the desired material. As there is no a fundamental theory for materials synthesis, one might attempt a data-driven approach for predicting inorganic materials synthesis, but this is impeded by the lack of a comprehensive database containing synthesis processes. To overcome this limitation, we have generated a dataset of “codified recipes” for solid-state synthesis automatically extracted from scientific publications. The dataset consists of 19,488 synthesis entries retrieved from 53,538 solid-state synthesis paragraphs by using text mining and natural language processing approaches. Every entry contains information about target material, starting compounds, operations used and their conditions, as well as the balanced chemical equation of the synthesis reaction. The dataset is publicly available and can be used for data mining of various aspects of inorganic materials synthesis. Measurement(s) | solid-state synthesis data | Technology Type(s) | natural language processing |
Machine-accessible metadata file describing the reported data: 10.6084/m9.figshare.9906608
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Non-equilibrium crystallization pathways of manganese oxides in aqueous solution. Nat Commun 2019; 10:573. [PMID: 30718490 PMCID: PMC6362205 DOI: 10.1038/s41467-019-08494-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 01/15/2019] [Indexed: 11/20/2022] Open
Abstract
Aqueous precipitation of transition metal oxides often proceeds through non-equilibrium phases, whose appearance cannot be anticipated from traditional phase diagrams. Without a precise understanding of which metastable phases form, or their lifetimes, targeted synthesis of specific metal oxides can become a trial-and-error process. Here, we construct a theoretical framework to reveal the nanoscale and metastable energy landscapes of Pourbaix (E-pH) diagrams, providing quantitative insights into the size–dependent thermodynamics of metastable oxide nucleation and growth in water. By combining this framework with classical nucleation theory, we interrogate how solution conditions influence the multistage oxidation pathways of manganese oxides. We calculate that even within the same stability region of a Pourbaix diagram, subtle variations in pH and redox potential can redirect a non-equilibrium crystallization pathway through different metastable intermediates. Our theoretical framework offers a predictive platform to navigate through the thermodynamic and kinetic energy landscape towards the rational synthesis of target materials. Multistage crystallization of transition metal oxides often proceeds through a number of metastable intermediates. Here, the authors shed light on this phenomenon by extending Pourbaix diagrams to capture the metastable and nanoscale thermodynamics of manganese oxide nucleation.
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Udayakantha M, Schofield P, Waetzig GR, Banerjee S. A full palette: Crystal chemistry, polymorphism, synthetic strategies, and functional applications of lanthanide oxyhalides. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2018.12.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Abe H, Takekiyo T, Yoshimura Y, Hamaya N, Ozawa S. Crystal Polymorphs and Multiple Crystallization Pathways of Highly Pressurized 1-Ethyl-3-Methylimidazolium Nitrate. Aust J Chem 2019. [DOI: 10.1071/ch18368] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Crystal polymorphs and multiple crystallization pathways of a room-temperature ionic liquid (RTIL) were observed only under high pressure (HP). The RTIL was 1-ethyl-3-methylimidazolium nitrate, [C2mim][NO3]. The HP-crystal polymorphs were related to conformations of the C2mim+ cation, and the HP-crystal pathways determined by the presence or absence of the planar′ (P′) conformation of the C2mim+ cation were switched at the bifurcation pressure (PB). Above PB, modulated crystal structures derived from the HP-inherent P′ conformer. Simultaneous X-ray diffraction and differential scanning calorimetry measurements, accompanied by optical microscope observations, confirmed the normal low-temperature crystallization of [C2mim][NO3] under ambient pressure.
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Ma X, Nolan AM, Zhang S, Bai J, Xu W, Wu L, Mo Y, Chen H. Guiding Synthesis of Polymorphs of Materials Using Nanometric Phase Diagrams. J Am Chem Soc 2018; 140:17290-17296. [DOI: 10.1021/jacs.8b11029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xuetian Ma
- The Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Adelaide M. Nolan
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Shuo Zhang
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | | | - Wenqian Xu
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | | | - Yifei Mo
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Hailong Chen
- The Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, Georgia 30332, United States
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