51
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Quak DH, Sarif M, Opitz P, Lange M, Jegel O, Pham DH, Koziol M, Prädel L, Mondeshki M, Tahir MN, Tremel W. Generalized synthesis of NaCrO 2 particles for high-rate sodium ion batteries prepared by microfluidic synthesis in segmented flow. Dalton Trans 2022; 51:10466-10474. [PMID: 35763037 DOI: 10.1039/d1dt04333a] [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
NaCrO2 particles for high-rate sodium ion batteries were prepared on a multigram scale in segmented flow from chromium nitrate and sodium nitrate using a segregated flow water-in-oil emulsion drying process. Microfluidic processing is an environmentally friendly and rapid synthetic method, which can produce large-scale industrial implementation for the production of materials with superior properties. The reaction time for NaCrO2 particles was reduced by almost one order of magnitude compared to a normal flask synthesis and by several orders of magntitude compared to a conventional solid-state reaction. In addition, it allows for an easy upscaling and was generalized for the synthesis of other layered oxides NaMO2 (M = Cr, Fe, Co, Al). The automated water-in-oil emulsion approach circumvents the diffusion limits of solid-state reactions by allowing a rapid intermixing of the components at a molecular level in submicrometer-sized micelles. A combination of Raman and nuclear magnetic resonance spectroscopy (1H, 23Na), thermal analysis, X-ray diffraction and high resolution transmission electron microscopy provided insight into the formation mechanism of NaCrO2 particles. The new synthesis method allows cathode materials of different types to be produced in a large scale, constant quality and in short reaction times in an automated manner.
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Affiliation(s)
- Do-Hyun Quak
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
| | - Massih Sarif
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
| | - Phil Opitz
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
| | - Martin Lange
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
| | - Olga Jegel
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
| | - Dang Hieu Pham
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
| | - Martha Koziol
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
| | - Leon Prädel
- Max-Planck-Institut für Polymerforschung, Ackermannweg 10, D-55128 Mainz, Germany
| | - Mihail Mondeshki
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
| | - Muhammad Nawaz Tahir
- Department of Chemistry, King Fahd University of Petroleum and Minerals, P.O. Box 5048, Dhahran 31261, Kingdom of Saudi Arabia
| | - Wolfgang Tremel
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
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52
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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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53
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Lv S, Liu D, Sun Y, Li M, Zhou Y, Song C, Wang D. Graphene oxide coupled high-index facets CdZnS with rich sulfur vacancies for synergistic boosting visible-light-catalytic hydrogen evolution in natural seawater: Experimental and DFT study. J Colloid Interface Sci 2022; 623:34-43. [PMID: 35561574 DOI: 10.1016/j.jcis.2022.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/13/2022] [Accepted: 05/02/2022] [Indexed: 12/26/2022]
Abstract
Constructing photocatalysts with high activity and anti-photocorrosion is a key to harvesting hydrogen energy from seawater efficiently. Herein, graphene oxide closely coupled high-index facets CdZnS with rich sulfur vacancies (Vs-CZS@GO) has been successfully synthesized via one-pot sulfidation accompanied pyrolysis. DFT calculation confirmed the delicate surface/interface/defect engineering endowed high-index facets Vs-CZS@GO with a lower ΔGH* value and significant charge transfer behavior for efficient H2-generation. The synergistic effect of sulfur vacancy, high-index facets, and tightly coupling interface not only enhanced intrinsic active sites and carrier separation efficiencies, but also greatly promoted H2 evolution rate and stability. Consequently, Vs-CZS@GO displayed a significantly high H2-generation rate of 23.2 mmol∙g-1∙h-1 in natural seawater under visible-light irradiation, which is up to 82% of that in pure water. This work provides deeply insight into the synergistic regulation of electronic structure for exposed high-index facets photocatalysts via defect engineering and interface engineering for synergistic boosting visible-light-to-H2 evolution.
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Affiliation(s)
- Shuhua Lv
- College of Materials Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, Shandong, PR China
| | - Dongzheng Liu
- Key Lab of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Yuanyuan Sun
- College of Materials Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, Shandong, PR China
| | - Mingxuan Li
- Key Lab of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Yanhong Zhou
- Key Lab of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Caixia Song
- College of Materials Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, Shandong, PR China.
| | - Debao Wang
- Key Lab of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
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54
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Jiang D, Wang X, Chen R, Sun J, Kang H, Ji D, Liu Y, Wei D. Self-Expanding Molten Salt-Driven Growth of Patterned Transition-Metal Dichalcogenide Crystals. J Am Chem Soc 2022; 144:8746-8755. [PMID: 35508181 DOI: 10.1021/jacs.2c02518] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Transition-metal dichalcogenides (TMDs) have been considered potential materials for the next generation of semiconductors. Realizing controllable growth of TMD crystals is a prerequisite for their future applications, which remains challenging. Here, we reveal a new mechanism of self-expanding molten salt-driven growth for a salt-assisted method and achieve the patterned growth of TMD single-crystal arrays with a size of hundreds of micrometers. Time-of-flight secondary ion mass spectroscopy and other spectroscopy characterizations identify the component of the molten salt solution. Microscopic characterizations reveal the existence of salt solution as an interlayer between a TMD monolayer and the silicon substrate as well as particles along the crystal edge. The edged salt solution serves as a self-expanding liquid substrate, which confines the reactive sites to the localized liquid surface, thus avoiding random nucleation. The surface reaction also assures monolayer crystal formation due to self-limiting growth. Besides, the liquid substrate affords sources and spreads itself continuously owing to the nonwetting effect on TMD crystals, thereby facilitating the continuous extension of the TMD monolayer. This work provides novel insights into the controllable synthesis of TMD monolayers and paves the way for the fabrication of TMD-based integrated functional devices.
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Affiliation(s)
- Dingding Jiang
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai 200433, China.,State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Xuejun Wang
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai 200433, China.,State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Renzhong Chen
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai 200433, China.,State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Jiang Sun
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai 200433, China.,State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Hua Kang
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai 200433, China.,State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Daizong Ji
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai 200433, China.,State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yunqi Liu
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai 200433, China.,Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Dacheng Wei
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai 200433, China.,State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
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55
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Liu X, Cui M, Cui K, Ding Y, Chen X, Chen C, Nie X. Construction of Li/K dopants and cyano defects in graphitic carbon nitride for highly efficient peroxymonosulfate activation towards organic contaminants degradation. CHEMOSPHERE 2022; 294:133700. [PMID: 35066076 DOI: 10.1016/j.chemosphere.2022.133700] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 12/27/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
As an emerging peroxymonosulfate (PMS) activation catalyst, graphitic carbon nitride (g-C3N4) is non-toxic and eco-friendly, while its poor catalytic performance hinders the application of pristine g-C3N4. Herein, a simple LiCl/KCl molten salts-assisted thermal polymerization method was adopted to promote the photocatalytic performance of g-C3N4. With the insertion of Li/K dopants and the introduction of surface cyano defects, the modified catalyst exhibited greatly enhanced ability on PMS activation towards acetaminophen removal, observing a 13 times higher rate constant than pristine g-C3N4 (k = 0.0435 min-1 vs. 0.0033 min-1). The main reactive oxygen species for pollutant degradation were identified as sulfate radicals and singlet oxygen. The wavefunction analysis at excited states based on density functional theory suggests that the introduction of cyano defects greatly promotes the separation of photo-generated electron-hole pairs, thereby achieving higher photocatalytic efficiency. In addition, the doping of Li/K significantly enhances the interaction between PMS and the catalyst surface, and orients the electron transfer from PMS to catalyst to generate non-radical species singlet oxygen, which improves the catalyst resistance to anions-containing water matrices.
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Affiliation(s)
- Xueyan Liu
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei, 230009, China
| | - Minshu Cui
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei, 230009, China
| | - Kangping Cui
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei, 230009, China.
| | - Yan Ding
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei, 230009, China
| | - Xing Chen
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei, 230009, China
| | - Changbin Chen
- Anqing Shuguang Chemical Co., Ltd., Anqing, 246003, China
| | - Xianbao Nie
- Anqing Shuguang Chemical Co., Ltd., Anqing, 246003, China
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56
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Yevilevich Y, Vradman L, Zana J, Weinstock IA, Herskowitz M. Investigation into La(Fe/Mn)O 3 Perovskites Formation over Time during Molten Salt Synthesis. Inorg Chem 2022; 61:6367-6375. [DOI: 10.1021/acs.inorgchem.1c03280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Leonid Vradman
- Department of Chemistry, Nuclear Research Center Negev, 84190 Beer-Sheva, Israel
- Department of Chemical Engineering, Blechner Center for Industrial Catalysis and Process Development, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel
| | - Jonatan Zana
- Department of Chemistry, Nuclear Research Center Negev, 84190 Beer-Sheva, Israel
| | | | - Moti Herskowitz
- Department of Chemical Engineering, Blechner Center for Industrial Catalysis and Process Development, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel
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57
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Cui T, Wang YP, Ye T, Wu J, Chen Z, Li J, Lei Y, Wang D, Li Y. Engineering Dual Single-Atom Sites on 2D Ultrathin N-doped Carbon Nanosheets Attaining Ultra-Low-Temperature Zinc-Air Battery. Angew Chem Int Ed Engl 2022; 61:e202115219. [PMID: 34994045 DOI: 10.1002/anie.202115219] [Citation(s) in RCA: 114] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Indexed: 12/21/2022]
Abstract
Herein, a novel dual single-atom catalyst comprising adjacent Fe-N4 and Mn-N4 sites on 2D ultrathin N-doped carbon nanosheets with porous structure (FeMn-DSAC) was constructed as the cathode for a flexible low-temperature Zn-air battery (ZAB). FeMn-DSAC exhibits remarkable bifunctional activities for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Control experiments and density functional theory calculations reveal that the catalytic activity arises from the cooperative effect of the Fe/Mn dual-sites aiding *OOH dissociation as well as the porous 2D nanosheet structure promoting active sits exposure and mass transfer during the reaction process. The excellent bifunctional activity of FeMn-DSAC enables the ZAB to operate efficiently at ultra-low temperature of -40 °C, delivering 30 mW cm-2 peak power density and retaining up to 86 % specific capacity from the room temperature counterpart.
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Affiliation(s)
- Tingting Cui
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yun-Peng Wang
- School of Physics and Electronics, Hunan Key Laboratory for Super-micro structure and Ultrafast Process, Central South University, Changsha, 410083, China
| | - Tong Ye
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China
| | - Jiao Wu
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China
| | - Zhiqiang Chen
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jiong Li
- Shanghai Synchrotron Radiation Facilities, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai, 201204, China
| | - Yongpeng Lei
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
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58
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Sun J, Zhou J, Li L, Hu Z, Chan TS, Vitova T, Song S, Liu R, Jing C, Yu H, Zhang M, Rothe J, Wang JQ, Zhang L. Atomic controllable anchoring of uranium into zirconate pyrochlore with ultrahigh loading capacity. Chem Commun (Camb) 2022; 58:3469-3472. [PMID: 35195655 DOI: 10.1039/d2cc00576j] [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
Efficient immobilization of actinide wastes is challenging in the nuclear energy industry. Here, we reported that 100% substitution of Zr4+ by U6+ in a La2Zr2O7 matrix has been achieved for the first time by the molten salt (MS) method. Importantly, we observed that uranium can be precisely anchored into Zr or La sites of the La2Zr2O7 matrix, as confirmed by X-ray diffraction, Raman, and X-ray absorption spectra. This work will guide the construction of site-controlled and high-capacity actinide-immobilized pyrochlore materials and could be extended to other perovskite materials.
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Affiliation(s)
- Jian Sun
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China. .,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Zhou
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
| | - Lili Li
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
| | - Zhiwei Hu
- Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, Dresden 01187, Germany
| | - Ting-Shan Chan
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu 30076, Taiwan, Republic of China
| | - Tonya Vitova
- Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE), Karlsruhe 76021, Germany.
| | - Sanzhao Song
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
| | - Renduo Liu
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
| | - Chao Jing
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
| | - Haisheng Yu
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
| | - Ming Zhang
- Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
| | - Joerg Rothe
- Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE), Karlsruhe 76021, Germany.
| | - Jian-Qiang Wang
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China. .,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Linjuan Zhang
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China. .,University of Chinese Academy of Sciences, Beijing 100049, China
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59
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Chen X, Li M, Hou J, Lu K, Yue X, Li Y, Chen L, Liu Z, Yang X. Molten salt method synthesis of multivalent cobalt and oxygen vacancy modified Nitrogen-doped MXene as highly efficient hydrogen and oxygen Evolution reaction electrocatalysts. J Colloid Interface Sci 2022; 615:831-839. [PMID: 35180631 DOI: 10.1016/j.jcis.2022.02.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/28/2022] [Accepted: 02/03/2022] [Indexed: 11/18/2022]
Abstract
Nitrogen-doped Ti3C2Ty MXene with multivalent cobalt and oxygen vacancy (Vo) modification was obtained by using molten salt method and greatly improved electrocatalytic performance. The structural properties of MXene and the valence state of cobalt were adjusted by controlling the molten salt temperature. When the molten salt treatment temperature was 377 °C, the obtained 377-CoOxN1-x-Ti3C2Ty maintained the chemical structure of MXene well, and also has high Co2+ content and Vo content. Electrochemical test results showed that 377-CoOxN1-x-Ti3C2Ty had the lowest Hydrogen Evolution Reaction (HER) overpotential of 87.73 mV and good electrocatalytic stability. X-ray Photoelectron Spectroscopy (XPS) results and Density Functional Theory (DFT) calculations showed that the introduction of polyvalent cobalt and Vo in the nitrogen-doped Ti3C2Ty structure effectively reduced the energy barrier of the electrocatalytic reaction of MXene.
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Affiliation(s)
- Xunxin Chen
- College of Science/Key Laboratory of Ecophysics and Department of Physics, Shihezi University, Shihezi 832003, Xinjiang, China; School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, Xinjiang, China
| | - Meishan Li
- College of Science/Key Laboratory of Ecophysics and Department of Physics, Shihezi University, Shihezi 832003, Xinjiang, China
| | - Juan Hou
- College of Science/Key Laboratory of Ecophysics and Department of Physics, Shihezi University, Shihezi 832003, Xinjiang, China.
| | - Ke Lu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, Xinjiang, China
| | - Xuanyu Yue
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, Xinjiang, China
| | - Yafei Li
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, Xinjiang, China
| | - Long Chen
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, Xinjiang, China
| | - Zhiyong Liu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, Xinjiang, China
| | - Xiaodong Yang
- College of Science/Key Laboratory of Ecophysics and Department of Physics, Shihezi University, Shihezi 832003, Xinjiang, China.
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Rayssi C, Jebli M, Dhahri J, Henda MB, Alotaibi N, Alshahrani T, Belmabrouk H, Bchetnia A, Bouazizi ML. Experimental-structural study, Raman spectroscopy, UV‐visible, and impedance characterizations of Ba0.97La0.02Ti0.9Nb0.08O3 polycrystalline sample. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131539] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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61
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Sun X, Chen K, Liang F, Zhi C, Xue D. Perspective on Micro-Supercapacitors. Front Chem 2022; 9:807500. [PMID: 35087793 PMCID: PMC8787070 DOI: 10.3389/fchem.2021.807500] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/10/2021] [Indexed: 11/17/2022] Open
Abstract
The rapid development of portable, wearable, and implantable electronic devices greatly stimulated the urgent demand for modern society for multifunctional and miniaturized electrochemical energy storage devices and their integrated microsystems. This article reviews material design and manufacturing technology in different micro-supercapacitors (MSCs) along with devices integrate to achieve the targets of their various applications in recent years. Finally, We also critically prospect the future development directions and challenges of MSCs.
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Affiliation(s)
- Xiangfei Sun
- Institute of Novel Semiconductors, State Key laboratory of Crystal Material, Jinan, China
| | - Kunfeng Chen
- Institute of Novel Semiconductors, State Key laboratory of Crystal Material, Jinan, China
- *Correspondence: Kunfeng Chen, ; Feng Liang, ; Dongfeng Xue,
| | - Feng Liang
- State Key Laboratory of Complex Non-ferrous Metal Resources Clean Application, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, China
- *Correspondence: Kunfeng Chen, ; Feng Liang, ; Dongfeng Xue,
| | - Chunyi Zhi
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, China
| | - Dongfeng Xue
- Multiscale Crystal Materials Research Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- *Correspondence: Kunfeng Chen, ; Feng Liang, ; Dongfeng Xue,
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62
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Cui T, Wang YP, Ye T, Wu J, Chen Z, Li J, Lei Y, Wang D, Li Y. Engineering Dual Single‐Atom Sites on 2D Ultrathin N‐doped Carbon Nanosheets Attaining Ultra‐Low Temperature Zn‐Air Battery. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tingting Cui
- Tsinghua University Department of Chemistry CHINA
| | - Yun-Peng Wang
- CSU: Central South University College of Chemistry and Chemical Engineering CHINA
| | - Tong Ye
- CSU: Central South University College of Chemistry and Chemical Engineering CHINA
| | - Jiao Wu
- CSU: Central South University College of Chemistry and Chemical Engineering CHINA
| | | | - Jiong Li
- SINAP: Shanghai Institute of Applied Physics Chinese Academy of Sciences Physics CHINA
| | - Yongpeng Lei
- CSU: Central South University College of Chemistry and Chemical Engineering CHINA
| | - Dingsheng Wang
- Tsinghua University Department of Chemistry Haidian 100084 Beijing CHINA
| | - Yadong Li
- Tsinghua University Department of Chemistry CHINA
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63
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Jiang Y, Fu T, Liu J, Zhao J, Li B, Chen Z. Molten salt synthesis of carbon-supported Pt–rare earth metal nanoalloy catalysts for oxygen reduction reaction. RSC Adv 2022; 12:4805-4812. [PMID: 35425521 PMCID: PMC8981501 DOI: 10.1039/d1ra09400a] [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: 12/28/2021] [Accepted: 01/26/2022] [Indexed: 11/21/2022] Open
Abstract
The synthesis mechanism of Pt–RE nanoalloy particles prepared by one-step molten salt synthesis as an advanced ORR catalyst is proposed.
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Affiliation(s)
- Yulin Jiang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Centre of Chemistry for Energy Materials, State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Tao Fu
- College of Chemistry and Material Science, Fujian Provincial Key Laboratory of Clean Energy Materials, Longyan University, Longyan 364012, People's Republic of China
| | - Jiaxiang Liu
- College of Energy, Xiamen University, Xiamen 361005, People's Republic of China
| | - Jinbao Zhao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Centre of Chemistry for Energy Materials, State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
- College of Energy, Xiamen University, Xiamen 361005, People's Republic of China
| | - Bing Li
- College of Chemistry and Material Science, Fujian Provincial Key Laboratory of Clean Energy Materials, Longyan University, Longyan 364012, People's Republic of China
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Zhenjie Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Centre of Chemistry for Energy Materials, State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
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64
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Zhang H, Feng J, Li L, Jiang Y, Feng J. Preparation of a carbon fibre-reinforced carbon aerogel and its application as a high-temperature thermal insulator. RSC Adv 2022; 12:13783-13791. [PMID: 35541432 PMCID: PMC9082426 DOI: 10.1039/d2ra00276k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 05/01/2022] [Indexed: 11/25/2022] Open
Abstract
Carbon aerogels (CAs) have attracted attention in thermal insulation. However, the traditional sol–gel method for preparing them involves time-consuming solvent exchange and rigorous supercritical drying processes, and the obtained CAs are brittle and crumble easily. To address these problems, a carbon fibre-reinforced carbon aerogel (CF/CA) was prepared via combining a resorcinol–furfural (RF) gel containing a salt (ZnCl2) with polyacrylonitrile (PAN) fiber felt. The CF/CA not only has low thermal conductivity (0.6904 W m−1 K−1) even at an ultra-high temperature of 1800 °C in an argon atmosphere but also exhibits relatively high compressive strength (6.10 MPa, 10% ε) and a low density of 0.68 g cm−3. The CF/CAs can be used as ultrahigh-temperature thermal insulators (under inert atmospheres or vacuum) in thermal protection systems such as space vehicles or industrial high temperature furnaces. Our novel strategy may lead to lower-cost and large scale industrial processes of CF/CAs. A carbon fiber reinforced carbon aerogel (CF/CA) was prepared by impregnating polyacrylonitrile (PAN) fibre felts with a resorcinol (R)–furfural (F) sol containing a salt (ZnCl2), followed by ageing and pyrolysis. The RF sol containing the salt was synthesized by direct polymerisation of R and F in methanol (MeOH) using ZnCl2 as a salt template. Compared with the traditional sol–gel method for preparing CF/CAs, this procedure eliminates the need for solvent-exchange and supercritical-fluid drying processes. This novel strategy may lead to lower-cost and large scale industrial processes of CF/CAs.![]()
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Affiliation(s)
- Haiming Zhang
- Institute of Applied Physics, Jiangxi Academy of Science, Nanchang 330096, China
| | - Junzong Feng
- Science and Technology on Advanced Ceramic Fibres and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Deya Road 109, Changsha, 410073, Hunan, China
| | - Liangjun Li
- Science and Technology on Advanced Ceramic Fibres and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Deya Road 109, Changsha, 410073, Hunan, China
| | - Yonggang Jiang
- Science and Technology on Advanced Ceramic Fibres and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Deya Road 109, Changsha, 410073, Hunan, China
| | - Jian Feng
- Science and Technology on Advanced Ceramic Fibres and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Deya Road 109, Changsha, 410073, Hunan, China
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65
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Lu JF, Li KC, Lv XY, Lei FH, Mi Y, Wen YX. N-doped pinecone-based carbon with a hierarchical porous pie-like structure: a long-cycle-life anode material for potassium-ion batteries. RSC Adv 2022; 12:20305-20318. [PMID: 35919586 PMCID: PMC9277422 DOI: 10.1039/d2ra03205h] [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: 05/21/2022] [Accepted: 07/04/2022] [Indexed: 11/21/2022] Open
Abstract
Pinecone-based biomass carbon (PC) is a potential anode material for potassium-ion batteries because it is abundant, cheap, renewable, and easy to obtain. However, because of inferior kinetics and the effects of volume expansion due to the large radius of the K+ ion, it does not meet commercial performance requirements. In this study, nitrogen-doped PC (NPC) was prepared by carbonization in molten ZnCl2 with urea as a nitrogen source. A strategy based on synergistic effects between N doping and ZnCl2 molten salt was used to produce a hierarchically porous pie-like NPC with abundant defects and active sites and an enlarged interlayer distance—properties that enhance K+ adsorption, promote K+ intercalation/diffusion, and reduce the effects of volume expansion. This NPC exhibited a high reversible capacity (283 mA h g−1 at 50 mA g−1) and superior rate performance and cyclic stability (110 mA h g−1 after 1000 cycles at 5 A g−1), demonstrating its potential for use in potassium-ion batteries. Pinecone-based biomass carbon (PC) is a potential anode material for potassium-ion batteries because it is abundant, cheap, renewable, and easy to obtain.![]()
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Affiliation(s)
- Jian-Fang Lu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi, China
- School of Chemistry and Chemical Engineering, Guangxi MINZU University, Nanning 530006, Guangxi, China
| | - Ke-Chun Li
- School of Materials and Environment, Guangxi MINZU University, Nanning 530006, Guangxi, China
| | - Xiao-Yan Lv
- The New Rural Development Research Institute, Guangxi University, Nanning 530004, Guangxi, China
| | - Fu-Hou Lei
- School of Chemistry and Chemical Engineering, Guangxi MINZU University, Nanning 530006, Guangxi, China
| | - Yan Mi
- School of Chemistry and Chemical Engineering, Guangxi MINZU University, Nanning 530006, Guangxi, China
| | - Yan-Xuan Wen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi, China
- Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning 530004, Guangxi, China
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66
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Liu S, Zhao Z, Jin L, Sun J, Jiao C, Wang Q. Nitrogen-Doped Carbon Networks with Consecutive Conductive Pathways from a Facile Competitive Carbonization-Etching Strategy for High-Performance Energy Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2104375. [PMID: 34677902 DOI: 10.1002/smll.202104375] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 09/05/2021] [Indexed: 06/13/2023]
Abstract
Recently, new carbonization strategies for synthesizing structure-controlled and high-performance carbon electrode materials have attracted great attentions in the field of energy storage and conversion. Here a competitive carbonization-etching strategy to prepare nitrogen-doped carbon polyhedron@carbon nanosheet (NCP@CNS) hybrids derived from zeolitic imidazolate framework-8 is presented. Consecutive conductive networks are constructed in the NCP@CNS hybrids during a unique carbonization-etching pyrolysis, where a competition between the formation of NCPs and CNSs exists. When the NCP@CNS hybrids are employed as supercapacitor electrodes, their hierarchically porous NCPs serve as ion-buffering reservoirs for offering fast ion transport channels, and the CNSs within hybrids not only link the NCPs together to build electron transfer pathways but also restrict the volume fluctuation of electrodes during charging and discharging process. As a result, the as-fabricated NCP@CNS electrode displays excellent electrochemical performances including a superior specific capacitance of 320 F g-1 , a high energy density of 22.2 W h kg-1 (5.6 W h kg-1 for symmetric device), and a long cycle life with capacitance retention of ≈101.8% after 5000 cycles. This study opens an encouraging avenue toward the tailored synthesis of metal-organic frameworks (MOFs)-derived carbon electrodes for renewable energy storage applications and devices.
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Affiliation(s)
- Siliang Liu
- College of Light-Textile Engineering and Art, Anhui Agricultural University, Hefei, Anhui, 230036, China
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, P. R. China
| | - Zhe Zhao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, P. R. China
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Li Jin
- College of Mathematics and Physics, Shanghai University of Electric Power, Shanghai, 201620, P. R. China
| | - Jing Sun
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Chenlu Jiao
- College of Light-Textile Engineering and Art, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Qin Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
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67
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Sun J, Zhou J, Hu Z, Chan TS, Liu R, Yu H, Zhang L, Wang JQ. Controllable sites and high-capacity immobilization of uranium in Nd 2Zr 2O 7 pyrochlore. JOURNAL OF SYNCHROTRON RADIATION 2022; 29:37-44. [PMID: 34985421 PMCID: PMC8733979 DOI: 10.1107/s1600577521012558] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 11/25/2021] [Indexed: 06/14/2023]
Abstract
As potential nuclear waste host matrices, two series of uranium-doped Nd2Zr2O7 nanoparticles were successfully synthesized using an optimized molten salt method in an air atmosphere. Our combined X-ray diffraction, Raman and X-ray absorption fine-structure (XAFS) spectroscopy studies reveal that uranium ions can precisely substitute the Nd site to form an Nd2-xUxZr2O7+δ (0 ≤ x ≤ 0.2) system and the Zr site to form an Nd2Zr2-yUyO7+δ (0 ≤ y ≤ 0.4) system without any impurity phase. With increasing U concentration, there is a phase transition from pyrochlore (Fd3m) to defect fluorite (Fm3m) structures in both series of U-doped Nd2Zr2O7. The XAFS analysis indicates that uranium exists in the form of high-valent U6+ in all samples. To balance the extra charge for substituting Nd3+ or Zr4+ by U6+, additional oxygen is introduced accompanied by a large structural distortion; however, the Nd2Zr1.6U0.4O7+δ sample with high U loading (20 mol%) still maintains a regular fluorite structure, indicating the good solubility of the Nd2Zr2O7 host for uranium. This study is, to the best of our knowledge, the first systematic study on U-incorporated Nd2Zr2O7 synthesized via the molten salt method and provides convincing evidence for the feasibility of accurately immobilizing U at specific sites.
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Affiliation(s)
- 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
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jing Zhou
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China
| | - Zhiwei Hu
- Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - Ting-Shan Chan
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu 30076, Taiwan
| | - Renduo Liu
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China
| | - Haisheng Yu
- 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
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jian-Qiang Wang
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
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68
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López-Salas N, Antonietti M. Carbonaceous Materials: The Beauty of Simplicity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210264] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Nieves López-Salas
- Colloids Chemistry Department, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Markus Antonietti
- Colloids Chemistry Department, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
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69
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Liu K, Badamdorj B, Yang F, Janik MJ, Antonietti M. Accelerated Anti‐Markovnikov Alkene Hydrosilylation with Humic‐Acid‐Supported Electron‐Deficient Platinum Single Atoms. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Kairui Liu
- Department of Colloid Chemistry Max Planck Institute of Colloids and Interfaces Potsdam 14476 Germany
| | - Bolortuya Badamdorj
- Department of Colloid Chemistry Max Planck Institute of Colloids and Interfaces Potsdam 14476 Germany
| | - Fan Yang
- School of Water Conservancy and Civil Engineering Northeast Agricultural University Harbin 150030 China
| | - Michael J. Janik
- Department of Chemical Engineering Pennsylvania State University University Park PA 16802 USA
| | - Markus Antonietti
- Department of Colloid Chemistry Max Planck Institute of Colloids and Interfaces Potsdam 14476 Germany
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70
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Zhang L, Li X, Antonietti M. General, Metal-free Synthesis of Carbon Nanofiber Assemblies from Plant Oils. Angew Chem Int Ed Engl 2021; 60:24257-24265. [PMID: 34480394 PMCID: PMC8596426 DOI: 10.1002/anie.202110725] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Indexed: 11/07/2022]
Abstract
We designed a metal-free synthesis of carbon nanofiber based on ketene chemistry using phosphorus pentoxide (P2 O5 ) and vegetable oil. Based on the characterization of intermediates, P2 O5 -oil reaction yielded most possibly alkylketenes, which polymerized into poly(ketene) with abundant enol groups. The enol groups further reacted with P2 O5 , forcing the poly(ketene) to assemble into a nano-sized preassembly structure. Moderate heating transforms these structures into carbonaceaus nanofibers. This approach is applicable to other chemicals with similar structure to vegetable oil. The carbon nanofibers with P-O-C functionalization show relatively high graphitization degree and promising textural properties. The C-O-P environment accounts for 66 at % of the total P and creates a superior thermal stability. As a model application, a CDI system built of a carbon-nanofiber-based electrode countered by an activated carbon-based electrode exhibited exceptional performance.
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Affiliation(s)
- Liyuan Zhang
- Max Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
| | - Xinzhe Li
- Department of ChemistryNational University of Singapore3 Science Drive 3Singapore117543Singapore
| | - Markus Antonietti
- Max Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
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71
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Zhang L, Li X, Antonietti M. General, Metal‐free Synthesis of Carbon Nanofiber Assemblies from Plant Oils. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Liyuan Zhang
- Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
| | - Xinzhe Li
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Markus Antonietti
- Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
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72
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Liu K, Badamdorj B, Yang F, Janik MJ, Antonietti M. Accelerated Anti-Markovnikov Alkene Hydrosilylation with Humic-Acid-Supported Electron-Deficient Platinum Single Atoms. Angew Chem Int Ed Engl 2021; 60:24220-24226. [PMID: 34473398 PMCID: PMC8597131 DOI: 10.1002/anie.202109689] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/11/2021] [Indexed: 11/09/2022]
Abstract
The hydrosilylation reaction is one of the largest-scale applications of homogeneous catalysis, and Pt homogeneous catalysts have been widely used in this reaction for the commercial manufacture of silicon products. However, homogeneous Pt catalysts result in considerable problems, such as undesired side reactions, unacceptable catalyst residues and disposable platinum consumption. Here, we synthesized electron-deficient Pt single atoms supported on humic matter (Pt1 @AHA_U_400), and the catalyst was used in hydrosilylation reactions, which showed super activity (turnover frequency as high as 3.0×107 h-1 ) and selectivity (>99 %). Density functional theory calculations reveal that the high performance of the catalyst results from the atomic dispersion of Pt and the electron deficiency of the Pt1 atoms, which is different from conventional Pt nanoscale catalysts. Excellent performance is maintained during recycle experiments, indicating the high stability of the catalyst.
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Affiliation(s)
- Kairui Liu
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Potsdam, 14476, Germany
| | - Bolortuya Badamdorj
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Potsdam, 14476, Germany
| | - Fan Yang
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, 150030, China
| | - Michael J Janik
- Department of Chemical Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Markus Antonietti
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Potsdam, 14476, Germany
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73
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Utrap A, Pielmeier MRP, Lange T, Gädt T, Nilges T. An Ordered Alite Cement Clinker Phase (Ca
3
SiO
5
,
aP
162) from Flux Synthesis. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- André Utrap
- Professorship for Synthesis and Characterization of Innovative Materials Technical University of Munich Department of Chemistry Lichtenbergstraße 4 85748 Garching b. München Germany
| | - Markus R. P. Pielmeier
- Professorship for Synthesis and Characterization of Innovative Materials Technical University of Munich Department of Chemistry Lichtenbergstraße 4 85748 Garching b. München Germany
| | - Tobias Lange
- Chair for Construction Chemistry Technical University of Munich Department of Chemistry Lichtenbergstraße 4 85748 Garching b. München Germany
| | - Torben Gädt
- Chair for Construction Chemistry Technical University of Munich Department of Chemistry Lichtenbergstraße 4 85748 Garching b. München Germany
| | - Tom Nilges
- Professorship for Synthesis and Characterization of Innovative Materials Technical University of Munich Department of Chemistry Lichtenbergstraße 4 85748 Garching b. München Germany
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74
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Stroyuk O, Raievska O, Zahn DRT. Single-layer carbon nitride: synthesis, structure, photophysical/photochemical properties, and applications. Phys Chem Chem Phys 2021; 23:20745-20764. [PMID: 34542127 DOI: 10.1039/d1cp03457j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This Perspective provides a critical summary of the current state of the art in the synthesis and properties of polyheptazine single-layer carbon nitride (SLCN). The summary combines the authors' research and literature reports on SLCN concerning the synthesis of single-layer polyheptazine sheets, light absorption and emission by SLCN, photochemical and photocatalytic properties of SLCN as well as examples of applications of SLCN sheets as "building blocks" in heterostructures with nanocrystalline semiconductors and metals. The Perspective is concluded with an outlook discussing the most promising directions for further studies and applications of SLCN and related composites.
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Affiliation(s)
- Oleksandr Stroyuk
- Forschungszentrum Jülich GmbH, Helmholtz-Institut Erlangen Nürnberg für Erneuerbare Energien (HI ERN), Immerwahrstr. 2, 91058 Erlangen, Germany.
| | - Oleksandra Raievska
- Semiconductor Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany. .,Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, D-09107 Chemnitz, Germany
| | - Dietrich R T Zahn
- Semiconductor Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany. .,Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, D-09107 Chemnitz, Germany
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75
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Mete B, Peighambardoust NS, Aydin S, Sadeghi E, Aydemir U. Metal-substituted zirconium diboride (Zr1-TMB2; TM = Ni, Co, and Fe) as low-cost and high-performance bifunctional electrocatalyst for water splitting. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138789] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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76
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Levitas B, Piligian S, Ireland T, Gopalan S. Elucidating the influence of molten salt chemistries on the synthesis and stability of perovskites oxides. RSC Adv 2021; 11:29156-29163. [PMID: 35492064 PMCID: PMC9040654 DOI: 10.1039/d0ra04324a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 08/20/2021] [Indexed: 12/31/2022] Open
Abstract
In this work, we investigate the synthesis of (La0.8Sr0.2)MnO3 (LSM) in various molten salts to gain insight on the influence of molten salt ions for synthesizing materials critical for energy applications. LSM nanoparticles with a size range of ∼10-200 nm and with target stoichiometries were formed from oxide precursors via feeding into KNO3. Furthermore, feeding precursors into the melt compared to mixing and heating from room temperature results in complete formation of LSM that was otherwise unattainable using conventional molten salt synthesis methods. In LiCl-KCl eutectic, the high Lux acidity of Li+ and Cl- establishes a thermodynamic barrier that impedes Sr from reacting with other precursors in solution and increases Sr stability in the melt compared to the perovskite phase. As a result, LSM will not form in a LiCl-KCl eutectic under ambient conditions. Thus, this study further explicates the molten salt synthesis for perovskites and can serve as a guide for future syntheses.
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Affiliation(s)
- Benjamin Levitas
- Division of Materials Science and Engineering, Boston University Brookline Massachusetts 02445 USA
| | - Spencer Piligian
- Department of Electrical and Computer Engineering, Boston University Boston Massachusetts 02215 USA
| | - Thomas Ireland
- Department of Earth and Environment, Boston University Boston Massachusetts 02215 USA
| | - Srikanth Gopalan
- Division of Materials Science and Engineering, Boston University Brookline Massachusetts 02445 USA .,Department of Mechanical Engineering, Boston University Boston Massachusetts 02215 USA
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77
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Zeng D, Xiong H, Qi K, Guo X, Qiu Y. Constructing N-doping biomass-derived carbon with hierarchically porous architecture to boost fast reaction kinetics for higfh-performance lithium storage. J Colloid Interface Sci 2021; 605:741-751. [PMID: 34365310 DOI: 10.1016/j.jcis.2021.07.135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/07/2021] [Accepted: 07/26/2021] [Indexed: 11/16/2022]
Abstract
Active biomass-derived carbons are brought into focus on boosting high-performance lithium storage. However, their low electric conductivity and poor ion diffusion kinetics during the lithium storage reactions remain confusing topics. This study demonstrates a novel and effective strategy of dual system activation process to construct the nitrogen-doped biomass-derived carbon with hierarchically porous architecture (HNBC), which is composed of the three-dimensional porous networks connected by carbon nanorods and the flake-like edges constructed by carbon nanosheets. A large amount of nitrogen doping can improve the conductivity and facilitate the charge transfer during charging/discharging, while the hierarchically porous structure can decrease the diffusion path for lithium-ion transport, enabling fast diffusion and charge-transfer dynamics. The HNBC electrode displays a high lithium-ion storage capacity of above 1392 mAh g-1 at 0.1 A g-1 and superior stability. Moreover, the assembled asymmetric lithium-ion capacitor exhibits excellent cycling stability and delivers a high power density of 225 W kg-1 with an energy density of 186.31 W h kg-1. This dual system activation strategy may inspire the reasonable design of new-generation progressive carbon-based electrodes for high-performance lithium storage devices.
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Affiliation(s)
- Dong Zeng
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Heng Xiong
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Kai Qi
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Huazhong University of Science and Technology, Wuhan 430074, China; Hubei Key Laboratory of Material Chemistry and Service Failure, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Xingpeng Guo
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Yubing Qiu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Huazhong University of Science and Technology, Wuhan 430074, China; Hubei Key Laboratory of Material Chemistry and Service Failure, Huazhong University of Science and Technology, Wuhan 430074, China.
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78
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Srivastava BB, Gupta SK, Mohan S, Mao Y. Molten-Salt-Assisted Annealing for Making Colloidal ZnGa 2 O 4 :Cr Nanocrystals with High Persistent Luminescence. Chemistry 2021; 27:11398-11405. [PMID: 34107108 DOI: 10.1002/chem.202101234] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Indexed: 11/09/2022]
Abstract
Persistent luminescent nanocrystals (PLNCs) in the sub-10 nm domain are considered to be the most fascinating inventions in lighting technology owing to their excellent performance in anti-counterfeiting, luminous paints, bioimaging, security applications, etc. Further improvement of persistent luminescence (PersL) intensity and lifetime is needed to achieve the desired success of PLNCs while keeping the uniform sub-10 nm size. In this work, the concept of molten salt confinement to thermally anneal as-synthesized ZnGa2 O4 :Cr3+ (ZGOC) colloidal NCs (CNCs) in a molten salt medium at 650 °C is introduced. This method led to significantly monodispersed and few agglomerated NCs with a much improved photoluminescence (PL) and PersL intensity without much growth in the size of the pristine CNCs. Other strategies such as i) thermal annealing, ii) overcoating, and iii) the core-shell strategy have also been tried to improve PL and PersL but did not improve them simultaneously. Moreover, directly annealing the CNCs in air without the assistance of molten salt could significantly improve both PL and PersL but led to particle heterogeneity and aggregation, which are highly unsuitable for in vivo imaging. We believe this work provides a novel strategy to design PLNCs with high PL intensity and long PersL duration without losing their nanostructural characteristics, water dispersibility and biocompatibility.
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Affiliation(s)
- Bhupendra B Srivastava
- Department of Chemistry, University of Texas Rio Grande Valley, 1201 West University Drive, Edinburg, Texas, 78539, USA
| | - Santosh K Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre Trombay, Mumbai, 400085, India.,Homi Bhabha National Institute Anushaktinagar, Mumbai, 400094, India
| | - Swati Mohan
- Department of Chemistry, University of Texas Rio Grande Valley, 1201 West University Drive, Edinburg, Texas, 78539, USA
| | - Yuanbing Mao
- Department of Chemistry, Illinois Institute of Technology, 3101 South Dearborn Street, Chicago, IL 60616, USA
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79
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Li Y, Ma G, Shao H, Xiao P, Lu J, Xu J, Hou J, Chen K, Zhang X, Li M, Persson POÅ, Hultman L, Eklund P, Du S, Chai Z, Huang Z, Jin N, Ma J, Liu Y, Lin Z, Huang Q. Electrochemical Lithium Storage Performance of Molten Salt Derived V 2SnC MAX Phase. NANO-MICRO LETTERS 2021; 13:158. [PMID: 34292406 PMCID: PMC8298715 DOI: 10.1007/s40820-021-00684-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/24/2021] [Indexed: 05/13/2023]
Abstract
MAX phases are gaining attention as precursors of two-dimensional MXenes that are intensively pursued in applications for electrochemical energy storage. Here, we report the preparation of V2SnC MAX phase by the molten salt method. V2SnC is investigated as a lithium storage anode, showing a high gravimetric capacity of 490 mAh g-1 and volumetric capacity of 570 mAh cm-3 as well as superior rate performance of 95 mAh g-1 (110 mAh cm-3) at 50 C, surpassing the ever-reported performance of MAX phase anodes. Supported by operando X-ray diffraction and density functional theory, a charge storage mechanism with dual redox reaction is proposed with a Sn-Li (de)alloying reaction that occurs at the edge sites of V2SnC particles where Sn atoms are exposed to the electrolyte followed by a redox reaction that occurs at V2C layers with Li. This study offers promise of using MAX phases with M-site and A-site elements that are redox active as high-rate lithium storage materials.
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Affiliation(s)
- Youbing Li
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, 315201, Zhejiang, People's Republic of China
- Qianwan Institute of CNiTECH, Ningbo, 315336, People's Republic of China
| | - Guoliang Ma
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Hui Shao
- CIRIMAT UMR CNRS 5085, Université Toulouse III- Paul Sabatier, 118 route de Narbonne, 31062, Toulouse Cedex 9, France
| | - Peng Xiao
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Jun Lu
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183, Linköping, Sweden
| | - Jin Xu
- School of Machine Engineering, Dongguan University of Technology, Dongguan, 523808, People's Republic of China
| | - Jinrong Hou
- Institute of New Energy for Vehicles, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Ke Chen
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, 315201, Zhejiang, People's Republic of China
- Qianwan Institute of CNiTECH, Ningbo, 315336, People's Republic of China
| | - Xiao Zhang
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, 315201, Zhejiang, People's Republic of China
- Qianwan Institute of CNiTECH, Ningbo, 315336, People's Republic of China
| | - Mian Li
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, 315201, Zhejiang, People's Republic of China
- Qianwan Institute of CNiTECH, Ningbo, 315336, People's Republic of China
| | - Per O Å Persson
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183, Linköping, Sweden
| | - Lars Hultman
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183, Linköping, Sweden
| | - Per Eklund
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183, Linköping, Sweden
| | - Shiyu Du
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, 315201, Zhejiang, People's Republic of China
- Qianwan Institute of CNiTECH, Ningbo, 315336, People's Republic of China
| | - Zhifang Chai
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, 315201, Zhejiang, People's Republic of China
- Qianwan Institute of CNiTECH, Ningbo, 315336, People's Republic of China
| | - Zhengren Huang
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, 315201, Zhejiang, People's Republic of China
- Qianwan Institute of CNiTECH, Ningbo, 315336, People's Republic of China
| | - Na Jin
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Jiwei Ma
- Institute of New Energy for Vehicles, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Ying Liu
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Zifeng Lin
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China.
| | - Qing Huang
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, 315201, Zhejiang, People's Republic of China.
- Qianwan Institute of CNiTECH, Ningbo, 315336, People's Republic of China.
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80
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Ma Y, Xiong L, Lu Y, Zhu W, Zhao H, Yang Y, Mao L, Yang L. Advanced Inorganic Nitride Nanomaterials for Renewable Energy: A Mini Review of Synthesis Methods. Front Chem 2021; 9:638216. [PMID: 34307294 PMCID: PMC8299337 DOI: 10.3389/fchem.2021.638216] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 05/12/2021] [Indexed: 11/16/2022] Open
Abstract
Inorganic nitride nanomaterials have attracted widespread attention for applications in renewable energy due to novel electrochemical activities and high chemical stabilities. For different renewable energy applications, there are many possibilities and uncertainties about the optimal nitride phases and nanostructures, which further promotes the exploration of controllable preparation of nitride nanomaterials. Moreover, unlike conventional nitrides with bulk or ceramic structures, the synthesis of nitride nanomaterials needs more accurate control to guarantee the target nanostructure along with the phase purity, which make the whole synthesis still a challenge to achieve. In this mini review, we mainly summarize the synthesis methods for inorganic nitride nanomaterials, including chemistry vapor deposition, self-propagation high-temperature synthesis, solid state metathesis reactions, solvothermal synthesis, etc. From the perspective of nanostructure, several novel nitrides, with nanostructures like nanoporous, two-dimensional, defects, ternary structures, and quantum dots, are showing unique properties and getting extensive attentions, recently. Prospects of future research in design and synthesis of functional inorganic nitrides are also discussed.
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Affiliation(s)
| | | | | | | | - Haihong Zhao
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), National and Local Joint Engineering Laboratory for New Petrochemical Materials and Fine Utilization of Resources, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, China
| | | | | | - Lishan Yang
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), National and Local Joint Engineering Laboratory for New Petrochemical Materials and Fine Utilization of Resources, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, China
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81
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Dong B, Cui J, Qi Y, Zhang F. Nanostructure Engineering and Modulation of (Oxy)Nitrides for Application in Visible-Light-Driven Water Splitting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2004697. [PMID: 34085732 DOI: 10.1002/adma.202004697] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 01/22/2021] [Indexed: 06/12/2023]
Abstract
(Oxy)nitride-based nanophotocatalysts have been extensively investigated for solar-to-chemical conversion, and not only allow wide spectral utilization to achieve high theoretical energy conversion efficiency but also exhibit suitable conduction and valence band positions for robust reduction and oxidation of water. During the past decades, a few reviews on the research progress in designing and synthesizing new visible-light-responsive semiconductors for various applications in solar-to-chemical conversion have been published. However, those on the effects of their bulk and composite (surface/interface) nanostructures on basic processes as well as solar water splitting performances to produce hydrogen are still limited. In this review, a brief introduction on the relationship between the nanostructure photocatalytic properties is included. Three main processes of solar water splitting are involved, allowing the elucidation of the correlation with the nanostructural properties of the photocatalyst such as surface/interface, size, morphology, and bulk structure. Subsequently, the development of methodologies and strategies for modulating the bulk and composite structures to improve the efficiencies of the basic processes, particularly charge separation, is summarized in detail. Finally, the prospects of (oxy)nitride-based photocatalysts such as controlled synthesis, modulation of 1D/2D morphology, exposed facet regulation, heterostructure formation, theoretical simulation, and time- and space-resolved spectroscopy are discussed.
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Affiliation(s)
- Beibei Dong
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Junyan Cui
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Yu Qi
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Fuxiang Zhang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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82
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Ilic IK, Lepre E, López-Salas N. Caffeine-Derived Noble Carbons as Ball Milling-Resistant Cathode Materials for Lithium-Ion Capacitors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:29612-29618. [PMID: 34128637 PMCID: PMC8251692 DOI: 10.1021/acsami.1c06013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 06/08/2021] [Indexed: 06/12/2023]
Abstract
Energy consumption is a growing phenomenon in our society causing many negative effects such as global warming. There is a need for the development of new sustainable materials for energy storage. Carbons are materials derivable from biowaste that can rather easily store energy due to their high conductivity and surface area. However, their large-scale processing is challenging as derived materials can be rather heterogeneous and homogenization requires ball milling, a process that can damage carbons in the process of oxidation. Herein, we have prepared caffeine-derived noble nitrogen-doped carbon that withstands the ball milling process without significant oxidation. Additionally, it performs extraordinarily as a cathode material for lithium-ion capacitors, making it an attractive biowaste-derived alternative to commercial heavy metal cathodes.
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Affiliation(s)
| | | | - Nieves López-Salas
- Colloid Chemistry Department, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, Potsdam 14476, Germany
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83
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Kossmann J, Rothe R, Heil T, Antonietti M, López-Salas N. Ultrahigh water sorption on highly nitrogen doped carbonaceous materials derived from uric acid. J Colloid Interface Sci 2021; 602:880-888. [PMID: 34186464 DOI: 10.1016/j.jcis.2021.06.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/01/2021] [Accepted: 06/02/2021] [Indexed: 11/27/2022]
Abstract
HYPOTHESIS Developing materials for thermally driven adsorption chillers and adsorption heat pumps is a growing research field due to the potential of these technologies to address up to 50% of the world's total energy demand. These materials must be abundant, easy to synthesize, hydrophilic, and low in cost. Bare carbon materials are hydrophobic and therefore usually not considered for these applications. However, by introducing heteroatoms and tuning their porosity, the hydrophilicity of carbonaceous networks can be increased significantly. EXPERIMENTAL Herein, a series of highly nitrogen doped carbonaceous materials (CNs) have been synthesized by submitting uric acid to heat treatment at different temperatures in the presence of an inorganic salt mix as solvent and pore template. The effect of the thermal treatment on the materials composition, pore network, and water sorption capability has been studied. FINDINGS At 800 °C, a nitrogen depleted carbonaceous material with a maximal water uptake of 1.38gH2O g-1 is obtained. Condensation at 750 °C creates an ultra-hydrophilic CN with a water uptake of 0.8 gH2O g-1 at already much lower partial pressures. While the maximum uptake is mainly ascribed to the mesopore volume of the material, the differences in hydrophilicity can be controlled by functionality.
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Affiliation(s)
- Janina Kossmann
- Colloid Chemistry Department, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, Potsdam 14476, Germany.
| | - Regina Rothe
- Colloid Chemistry Department, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, Potsdam 14476, Germany.
| | - Tobias Heil
- Colloid Chemistry Department, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, Potsdam 14476, Germany.
| | - Markus Antonietti
- Colloid Chemistry Department, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, Potsdam 14476, Germany.
| | - Nieves López-Salas
- Colloid Chemistry Department, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, Potsdam 14476, Germany.
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84
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Zhao Y, Zhang P, Yang Z, Li L, Gao J, Chen S, Xie T, Diao C, Xi S, Xiao B, Hu C, Choi W. Mechanistic analysis of multiple processes controlling solar-driven H 2O 2 synthesis using engineered polymeric carbon nitride. Nat Commun 2021; 12:3701. [PMID: 34140505 PMCID: PMC8211848 DOI: 10.1038/s41467-021-24048-1] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 06/01/2021] [Indexed: 11/28/2022] Open
Abstract
Solar-driven hydrogen peroxide (H2O2) production presents unique merits of sustainability and environmental friendliness. Herein, efficient solar-driven H2O2 production through dioxygen reduction is achieved by employing polymeric carbon nitride framework with sodium cyanaminate moiety, affording a H2O2 production rate of 18.7 μmol h -1 mg-1 and an apparent quantum yield of 27.6% at 380 nm. The overall photocatalytic transformation process is systematically analyzed, and some previously unknown structural features and interactions are substantiated via experimental and theoretical methods. The structural features of cyanamino group and pyridinic nitrogen-coordinated soidum in the framework promote photon absorption, alter the energy landscape of the framework and improve charge separation efficiency, enhance surface adsorption of dioxygen, and create selective 2e- oxygen reduction reaction surface-active sites. Particularly, an electronic coupling interaction between O2 and surface, which boosts the population and prolongs the lifetime of the active shallow-trapped electrons, is experimentally substantiated.
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Affiliation(s)
- Yubao Zhao
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education & Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, P. R. China.
- Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea.
| | - Peng Zhang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education & Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, P. R. China
| | - Zhenchun Yang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education & Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, P. R. China
| | - Lina Li
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education & Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, P. R. China
| | - Jingyu Gao
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education & Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, P. R. China
| | - Sheng Chen
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing, P. R. China
| | - Tengfeng Xie
- College of Chemistry, Jilin University, Changchun, P. R. China
| | - Caozheng Diao
- Singapore Synchrotron Light Source, National University of Singapore, Singapore, Singapore
| | - Shibo Xi
- Singapore Synchrotron Light Source, National University of Singapore, Singapore, Singapore
| | - Beibei Xiao
- School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang, P. R. China
| | - Chun Hu
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education & Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, P. R. China
| | - Wonyong Choi
- Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea.
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85
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Pan G, Yang Q, Wang W, Tang Y, Cai Y. Heterogeneous photocatalytic cyanomethylarylation of alkenes with acetonitrile: synthesis of diverse nitrogenous heterocyclic compounds. Beilstein J Org Chem 2021; 17:1171-1180. [PMID: 34093882 PMCID: PMC8144907 DOI: 10.3762/bjoc.17.89] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/05/2021] [Indexed: 01/12/2023] Open
Abstract
A visible light-mediated heterogeneous photocatalytic cyanomethylarylation of alkenes with acetonitrile has been established using K-modified carbon nitride (CN-K) as a recyclable semiconductor photocatalyst. This protocol, employing readily accessible alkyl N-hydroxyphthalimide (NHPI) ester as a radical initiator, allows the efficient construction of a broad array of structural diverse nitrogenous heterocyclic compounds including indolines, oxindoles, isoquinolinones, and isoquinolinediones.
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Affiliation(s)
- Guanglong Pan
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
| | - Qian Yang
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
| | - Wentao Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Yurong Tang
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
| | - Yunfei Cai
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
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86
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Liu M, Lee J, Yang TC, Zheng F, Zhao J, Yang CM, Lee LYS. Synergies of Fe Single Atoms and Clusters on N-Doped Carbon Electrocatalyst for pH-Universal Oxygen Reduction. SMALL METHODS 2021; 5:e2001165. [PMID: 34928088 DOI: 10.1002/smtd.202001165] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/23/2021] [Indexed: 06/14/2023]
Abstract
Single atomic metal-N-C materials have attracted immense interest as promising candidates to replace noble metal-based electrocatalysts for the oxygen reduction reaction (ORR). The coordination environment of metal-N-C active centers plays a critical role in determining their catalytic activity and durability, however, attention is focused only on the coordination of metal atoms. Herein, Fe single atoms and clusters co-embedded in N-doped carbon (Fe/NC) that deliver the synergistic enhancement in pH-universal ORR catalysis via the four-electron pathway are reported. Combining a series of experimental and computational analyses, the geometric and electronic structures of catalytic sites in Fe/NC are revealed and the neighboring Fe clusters are shown to weaken the binding energies of the ORR intermediates on Fe-N sites, hence enhancing both catalytic kinetics and thermodynamics. This strategy provides new insights into the understanding of the mechanism of single atom catalysis.
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Affiliation(s)
- Mengjie Liu
- Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Jeongyeon Lee
- Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Tsung-Cheng Yang
- Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Fangyuan Zheng
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Jiong Zhao
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Chia-Min Yang
- Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Lawrence Yoon Suk Lee
- Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
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87
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Ndayishimiye A, Sengul MY, Akbarian D, Fan Z, Tsuji K, Bang SH, van Duin ACT, Randall CA. Dynamics of the Chemically Driven Densification of Barium Titanate Using Molten Hydroxides. NANO LETTERS 2021; 21:3451-3457. [PMID: 33852297 DOI: 10.1021/acs.nanolett.1c00069] [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
Molten hydroxides, often used for crystal growth and nanoparticle synthesis, have recently been applied for the single step densification of several inorganic materials under moderate uniaxial pressures and 1000 °C below their usual sintering temperatures. The latter approach, termed cold sintering process (CSP), is a mechanochemically driven process that enables the densification of inorganic materials through a dissolution-precipitation creep mechanism. In this study, we report the main densification mechanisms of BaTiO3 in a NaOH-KOH eutectic mixture. A chemical insight at the atomistic level, investigated by ReaxFF molecular dynamics simulations, offers plausible ionic complex formation scenarios and reactions at the BaTiO3/molten hydroxide interface, enabling the dissolution-precipitation reactions and the subsequent cold sintering of BaTiO3.
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Affiliation(s)
- Arnaud Ndayishimiye
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Mert Y Sengul
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Dooman Akbarian
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Zhongming Fan
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Kosuke Tsuji
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Sun Hwi Bang
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Adri C T van Duin
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Clive A Randall
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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88
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Wu D, Hu J, Zhu C, Zhang J, Jing H, Hao C, Shi Y. Salt melt synthesis of Chlorella-derived nitrogen-doped porous carbon with atomically dispersed CoN 4 sites for efficient oxygen reduction reaction. J Colloid Interface Sci 2021; 586:498-504. [PMID: 33189322 DOI: 10.1016/j.jcis.2020.10.115] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/15/2020] [Accepted: 10/26/2020] [Indexed: 01/07/2023]
Abstract
Carbon-supported single-atom catalysts (C-SACs) demonstrate great potential in various key electrochemical reactions. Nevertheless, the development of facile and economical strategies is highly appealing yet challenging given that the commonly used pyrolysis method has strict requirements on the structure and composition of precursors. Here, we demonstrate for the first time a facile and low-cost pyrolysis strategy assisted by molten salts at high temperature for preparing porous C-SACs with well-dispersed Co-N4 sites directly from a Chlorella precursor. Based on the X-ray absorption fine structure results and aberration-corrected scanning transmission electron microscopy images, we show that single atom Co-N4 moieties are anchored on a carbon matrix. A porous structure with a large specific surface area (2907 m2 g-1) and atomically dispersed active sites of Co provide the as-prepared Co-N/C-SAC with excellent electrocatalytic activity and stability for the ORR. The electrochemical measurements show that the half-wave potential and limited current density of this material are 0.83 V vs. RHE and 5.5 mA cm-2, respectively, which are comparable to those of commercial Pt/C.
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Affiliation(s)
- Danyang Wu
- School of Science, Dalian Maritime University, Dalian 116026, China; State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jinwen Hu
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Chao Zhu
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Collaborative Innovation Center for Micro/Nano Fabrication, Device and System, Southeast University, 2 No. 4 Pailou, Nanjing 210096, China
| | - Jiangwei Zhang
- Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Gold Catalysis Res Ctr, Dalian 116023, China
| | - Hongyu Jing
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Ce Hao
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yantao Shi
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China.
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89
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An MN, Park S, Brescia R, Lutfullin M, Sinatra L, Bakr OM, De Trizio L, Manna L. Low-Temperature Molten Salts Synthesis: CsPbBr 3 Nanocrystals with High Photoluminescence Emission Buried in Mesoporous SiO 2. ACS ENERGY LETTERS 2021; 6:900-907. [PMID: 33842693 PMCID: PMC8025713 DOI: 10.1021/acsenergylett.1c00052] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 02/01/2021] [Indexed: 05/22/2023]
Abstract
Using mesoporous SiO2 to encapsulate CsPbBr3 nanocrystals is one of the best strategies to exploit such materials in devices. However, the CsPbBr3/SiO2 composites produced so far do not exhibit strong photoluminescence emission and, simultaneously, high stability against heat and water. We demonstrate a molten-salts-based approach delivering CsPbBr3/mesoporous-SiO2 composites with high PLQY (89 ± 10%) and high stability against heat, water, and aqua regia. The molten salts enable the formation of perovskite nanocrystals and other inorganic salts (KNO3-NaNO3-KBr) inside silica and the sealing of SiO2 pores at temperatures as low as 350 °C, representing an important technological advancement (analogous sealing was observed only above 700 °C in previous reports). Our CsPbBr3/mesoporous-SiO2 composites are attractive for different applications: as a proof-of-concept, we prepared a white-light emitting diode exhibiting a correlated color temperature of 7692K. Our composites are also stable after immersion in saline water at high temperatures (a typical underground environment of oil wells), therefore holding promise as oil tracers.
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Affiliation(s)
- Mai Ngoc An
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy
- Nanochemistry
Department and Electron Microscopy Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Sungwook Park
- Nanochemistry
Department and Electron Microscopy Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Department
of Energy Science and Center for Artificial Atoms, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Rosaria Brescia
- Nanochemistry
Department and Electron Microscopy Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Marat Lutfullin
- Quantum
Solutions, 1 Venture
Road, Science Park, Southampton, SO16 7NP. U.K. (www.qdot.inc)
| | - Lutfan Sinatra
- Quantum
Solutions, 1 Venture
Road, Science Park, Southampton, SO16 7NP. U.K. (www.qdot.inc)
| | - Osman M. Bakr
- Quantum
Solutions, 1 Venture
Road, Science Park, Southampton, SO16 7NP. U.K. (www.qdot.inc)
- Division
of Physical Sciences and Engineering, King
Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Luca De Trizio
- Nanochemistry
Department and Electron Microscopy Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Liberato Manna
- Nanochemistry
Department and Electron Microscopy Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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90
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Shi X, Liu H, Tian J, Ning P, Zhang J, Shi X. Carbon-coated BiOBr composite prepared by molten salt method and mechanical ball milling as anode material for lithium-ion batteries. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2020.108415] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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91
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Liu S, Feng Q, Zhang C, Liu T. Molten salt-confined pyrolysis towards carbon nanotube-backboned microporous carbon for high-energy-density and durable supercapacitor electrodes. NANOTECHNOLOGY 2021; 32:095605. [PMID: 33207320 DOI: 10.1088/1361-6528/abcbc5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The development of a green and scalable construction of a three-dimensional (3D) hierarchically porous carbon as an electrode material for supercapacitors is promising but challenging. Herein, a carbon nanotube-backboned microporous carbon (CNT-MPC) was prepared by molten salt-confined pyrolysis, during which the salt eutectics simultaneously acted as a high-temperature reaction solvent and reusable template. Among the CNT-MPC, the CNT backbone provided a 3D conductive framework, whereas the MPC sheath possessed integrated mesopores and micropores as an efficient ion reservoir. As a result, the as-obtained CNT-MPC exhibited a high specific capacitance of 305.6 F g-1 at 1 A g-1, high energy density of 20.5 W h kg-1 and excellent cyclic stability with no capacitance losses after 50 000 cycles. The molten-salt confined pyrolysis strategy therefore provides a low-cost, environmentally-friendly and readily industrialized route to develop a hierarchically porous carbon that is highly required for high-energy-density and durable supercapacitors.
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Affiliation(s)
- Siliang Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, People's Republic of China
| | - Qichun Feng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, People's Republic of China
| | - Chao Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, People's Republic of China
| | - Tianxi Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, People's Republic of China
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, People's Republic of China
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92
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Jiang D, Zhou Z, Liang R, Dong X. Highly orientated Bi4Ti3O12 piezoceramics prepared by pressureless sintering. Ann Ital Chir 2021. [DOI: 10.1016/j.jeurceramsoc.2020.09.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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93
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Kimmig J, Zechel S, Schubert US. Digital Transformation in Materials Science: A Paradigm Change in Material's Development. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2004940. [PMID: 33410218 DOI: 10.1002/adma.202004940] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/01/2020] [Indexed: 06/12/2023]
Abstract
The ongoing digitalization is rapidly changing and will further revolutionize all parts of life. This statement is currently omnipresent in the media as well as in the scientific community; however, the exact consequences of the proceeding digitalization for the field of materials science in general and the way research will be performed in the future are still unclear. There are first promising examples featuring the potential to change discovery and development approaches toward new materials. Nevertheless, a wide range of open questions have to be solved in order to enable the so-called digital-supported material research. The current state-of-the-art, the present and future challenges, as well as the resulting perspectives for materials science are described.
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Affiliation(s)
- Julian Kimmig
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, Jena, 07743, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, Jena, 07743, Germany
| | - Stefan Zechel
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, Jena, 07743, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, Jena, 07743, Germany
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, Jena, 07743, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, Jena, 07743, Germany
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94
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Watanabe K, Iikubo Y, Yamaguchi Y, Kudo A. Highly crystalline Na 0.5Bi 0.5TiO 3 of a photocatalyst valence-band-controlled with Bi(III) for solar water splitting. Chem Commun (Camb) 2021; 57:323-326. [PMID: 33331364 DOI: 10.1039/d0cc07371g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Na0.5Bi0.5TiO3 (BG 3.1 eV) with a valence band formed by Bi(iii) was found as a new photocatalyst for solar water splitting. The water splitting activity of highly crystalline Na0.5Bi0.5TiO3 synthesized by a flux method was much higher than that of the samples synthesized by a solid-state reaction. The optimized RhCr2Ox(0.1 mol%)/Na0.5Bi0.5TiO3/CoOOH(0.02 mol%) gave a 5.1% apparent quantum yield at 350 nm and split water even under simulated sunlight irradiation with a 0.05% solar to hydrogen energy conversion efficiency. We have successfully achieved solar water splitting using a one-step photoexcitation type photocatalyst valence-band-controlled with Bi(iii).
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Affiliation(s)
- Kenta Watanabe
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
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95
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De Carolis DM, Vrankovic D, Kiefer SA, Bruder E, Dürrschnabel MT, Molina‐Luna L, Graczyk‐Zajac M, Riedel R. Towards a Greener and Scalable Synthesis of Na 2Ti 6O 13 Nanorods and Their Application as Anodes in Batteries for Grid-Level Energy Storage. ENERGY TECHNOLOGY (WEINHEIM, GERMANY) 2021; 9:2000856. [PMID: 33520597 PMCID: PMC7816232 DOI: 10.1002/ente.202000856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/21/2020] [Indexed: 06/12/2023]
Abstract
Grid applications require high power density (for frequency regulation, load leveling, and renewable energy integration), achievable by combining multiple batteries in a system without strict high capacity requirements. For these applications however, safety, cost efficiency, and the lifespan of electrode materials are crucial. Titanates, safe and longevous anode materials providing much lower energy density than graphite, are excellent candidates for this application. The innovative molten salt synthesis approach proposed in this work provides exceptionally pure Na2Ti6O13 nanorods generated at 900-1100 °C in a yield ≥80 wt%. It is fast, cost-efficient, and suitable for industrial upscaling. Electrochemical tests reveal stable performance providing capacities of ≈100 mA h g-1 (Li) and 40 mA h g-1 (Na). Increasing the synthesis temperature to 1100 °C leads to a capacity decrease, most likely resulting from 1) the morphology/volume change with the synthesis temperature and 2) distortion of the Na2Ti6O13 tunnel structure indicated by electron energy-loss and Raman spectroscopy. The suitability of pristine Na2Ti6O13 as the anode for grid-level energy storage systems has been proven a priori, without any performance-boosting treatment, indicating considerable application potential especially due to the high yield and low cost of the synthesis route.
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Affiliation(s)
- Dario M. De Carolis
- Dispersive Solids (DF) Division, Materials ScienceTechnical University of DarmstadtOtto‐Berndt‐Straße 3DarmstadtD‐64287Germany
| | - Dragoljub Vrankovic
- Dispersive Solids (DF) Division, Materials ScienceTechnical University of DarmstadtOtto‐Berndt‐Straße 3DarmstadtD‐64287Germany
- Present address:
Mercedes‐Benz AGMercedesstraße 120Stuttgart70327Germany
| | - Samira A. Kiefer
- Dispersive Solids (DF) Division, Materials ScienceTechnical University of DarmstadtOtto‐Berndt‐Straße 3DarmstadtD‐64287Germany
| | - Enrico Bruder
- Physical Metallurgy Division, Materials ScienceTechnical University of DarmstadtAlarich‐Weiss‐Straße 2DarmstadtD‐64287Germany
| | - Michael Thomas Dürrschnabel
- Institute for Applied Materials – Applied Material Physics (IAM‐AWP)Karlsruhe Institute of Technology (KIT)Hermann‐von‐Helmholtz‐Platz 1Eggenstein‐Leopoldshafen76344Germany
| | - Leopoldo Molina‐Luna
- Advanced Electron Microscopy (AEM) Division, Materials ScienceTechnical University of DarmstadtAlarich‐Weiss‐Straße 2Darmstadt64287Germany
| | - Magdalena Graczyk‐Zajac
- Dispersive Solids (DF) Division, Materials ScienceTechnical University of DarmstadtOtto‐Berndt‐Straße 3DarmstadtD‐64287Germany
- Present address:
EnBW Energie Baden‐Württemberg AGDurlacher Allee 93Karlsruhe76131Germany
| | - Ralf Riedel
- Dispersive Solids (DF) Division, Materials ScienceTechnical University of DarmstadtOtto‐Berndt‐Straße 3DarmstadtD‐64287Germany
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96
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Song S, Sun J, Zhou J, Guan C, Hu Z, Chan TS, Du XL, Lin X, Hu J, Zhang L, Wang JQ. Growth of LaCoO 3 crystals in molten salt: effects of synthesis conditions. CrystEngComm 2021. [DOI: 10.1039/d0ce01330g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, several typical reaction media for the synthesis of LaCoO3 (LCO) crystals were examined by X-ray absorption spectroscopy (XAS).
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97
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Wang Z, Ji H, Xu J, Hou X, Ueda J, Tanabe S, Yi S, Zhou Y, Chen D. Microsized Red Luminescent MgAl 2O 4:Mn 4+ Single-Crystal Phosphor Grown in Molten Salt for White LEDs. Inorg Chem 2020; 59:18374-18383. [PMID: 33244973 DOI: 10.1021/acs.inorgchem.0c03005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A single-crystalline defect-less phosphor is desired for efficient luminescence of the therein doped optical activators. In this paper, microsized MgAl2O4:Mn4+ single-crystal phosphors with bright red luminescence were grown in molten LiCl salt at 950 °C, for application in blue LED pumped white lighting. By comparing the phosphor formation from various Mg2+- and Al3+-bearing sources, both the template-formation and the dissolution-diffusion processes were evidenced to account for the formation of the microsized MgAl2O4:Mn4+ crystallites. Using nano γ-Al2O3 as the Al3+-bearing precursor, the uniform MgAl2O4:Mn4+ microcrystallites with a {111} planes-exposed tetragonal bipyramid morphology were obtained. The photoluminescence property was studied at various temperatures, and Mg ↔ Al anti-site disorder induced luminescence broadening was discussed. The Mn4+ 2Eg → 4A2g transition in MgAl2O4 shows a quite short luminescence wavelength peaking at 651 nm and ultrabroadband emission extending to 850 nm. The luminescence is relatively robust against thermal effect with relatively high thermal quenching temperature of 400 K and activation energy of 0.23 eV. Employing the red-emitting MgAl2O4:Mn4+ crystallites, blue LED pumped white lighting prototypes were fabricated which simulate the solar-like spectrum and show neutral to warm white.
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Affiliation(s)
- Zhaowu Wang
- Henan Province Industrial Technology Research Institute of Resources and Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Haipeng Ji
- Henan Province Industrial Technology Research Institute of Resources and Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Jian Xu
- School of Physics & Electronic Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China
| | - Xinghui Hou
- Henan Province Industrial Technology Research Institute of Resources and Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Jumpei Ueda
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan
| | - Setsuhisa Tanabe
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan
| | - Shasha Yi
- Henan Province Industrial Technology Research Institute of Resources and Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Ying Zhou
- Henan Province Industrial Technology Research Institute of Resources and Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Deliang Chen
- Henan Province Industrial Technology Research Institute of Resources and Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China.,School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China
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98
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Liu Q, Hu X, Liu Y, Wen Z. One-Step Low-Temperature Molten Salt Synthesis of Two-Dimensional Si@SiO x@C Hybrids for High-Performance Lithium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2020; 12:55844-55855. [PMID: 33259194 DOI: 10.1021/acsami.0c15882] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Various strategies have been developed to mitigate the huge volume expansion of a silicon-based anode during the process of (de)lithiation and accelerate the transport rate of the ions/electrons for lithium-ion batteries (LIBs). Here, we report a one-step synthetic route through a low-temperature eutectic molten salt (LiCl-KCl, 352 °C) to fabricate two-dimensional (2D) silicon-carbon hybrids (Si@SiOx@MpC), in which the silicon nanoparticles (SiNPs) with an ultrathin SiOx layer are fully encapsulated by graphene-like carbon nanosheets derived from a low-cost mesophase pitch. The combination of an amorphous graphene-like carbon conductive matrix and a SiOx protective layer strongly promotes the electrical conductivity, structure stability, and reaction kinetics of the SiNPs. Consequently, the optimized Si@SiOx@MpC-2 anode delivers large reversible capacity (1239 mAh g-1 at 1.0 A g-1), superior rate performance (762 mAh g-1 at 8 A g-1), and long cycle life over 600 cycles (degradation rate of only 0.063% every cycle). When coupled with a homemade nano-LiFePO4 cathode in a full cell, it exhibits a promising energy density of 193.5 Wh kg-1 and decent cycling stability for 200 cycles at 1C. The methodology driven by salt melt synthesis paves a low-cost way toward simple fabrication and manipulation of silicon-carbon materials in liquid media.
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Affiliation(s)
- Qian Liu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350116, China
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Xiang Hu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350116, China
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Yangjie Liu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350116, China
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Zhenhai Wen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350116, China
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99
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Wang H, Tian L, Huang Z, Liang F, Guan K, Jia Q, Zhang H, Zhang S. Molten salt synthesis of carbon-doped boron nitride nanosheets with enhanced adsorption performance. NANOTECHNOLOGY 2020; 31:505606. [PMID: 32906110 DOI: 10.1088/1361-6528/abb6a4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Owing to their large specific areas, high thermal stability and chemical inertness, two-dimensional boron carbon nitride nanosheets (BCNNs) have captured much attention in recent years in the field of adsorption of pollutants. The formation of BCNNs via incorporating carbon into boron nitride (BN) can effectively improve the photoelectric and adsorption properties of the latter. In this work, carbon-doped BN (BCN) nanosheets were prepared at 1100 °C via a molten salt route using boric acid, melamine and glucose as the main starting materials. The effects of molten salt type and carbon doping level on the formation of BCN were investigated, and their isothermal adsorption properties in a methylene blue (MB) aqueous solution were evaluated based on the Langmuir and Freundlich models. The results indicated that using molten LiCl-KCl as a liquid medium was more favorable than NaCl-KCl to the formation of BCNNs. As-prepared BC0.4N sample possessed a sheet-like structure of about 10 nm thick and a specific surface area as high as 484 m2 g-1. Moreover, the adsorption test of MB demonstrated a high adsorption capacity of 249.04 mg g-1, which was about 14 times higher than that in the case of the pristine BN, and the kinetic rate constant value in the case of using BC0.4N is about ten times as high as that of BN following a pseudo-second-order model, suggesting that the as-formed BC0.4N nanosheets could be potentially used as a value-added effective adsorbent for future wastewater remediation.
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Affiliation(s)
- Honghong Wang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - Liang Tian
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - Zhong Huang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - Feng Liang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - Keke Guan
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - Quanli Jia
- Henan Key Laboratory of High Temperature Functional Ceramics, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Haijun Zhang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - Shaowei Zhang
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter Ex4 4QF, United Kingdom
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100
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A modified chalcogenide flux method for confining metal halide nanocrystals into transparent glassy matrix. Ann Ital Chir 2020. [DOI: 10.1016/j.jeurceramsoc.2020.07.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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