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Ding F, Doi A, Ogawa T, Ubukata H, Zhu T, Kato D, Tassel C, Oikawa I, Inui N, Kuze S, Yamabayashi T, Fujii K, Yashima M, Ou X, Wang Z, Min X, Fujita K, Takamura H, Kuwabara A, Zhang T, Griffith KJ, Lin Z, Chai L, Kageyama H. Anionic Sublattices in Halide Solid Electrolytes: A Case Study with the High-Pressure Phase of Li 3ScCl 6. Angew Chem Int Ed Engl 2024; 63:e202401779. [PMID: 38363076 DOI: 10.1002/anie.202401779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/17/2024]
Abstract
The Li3MX6 compounds (M=Sc, Y, In; X=Cl, Br) are known as promising ionic conductors due to their compatibility with typical metal oxide cathode materials. In this study, we have successfully synthesized γ-Li3ScCl6 using high pressure for the first time in this family. Structural analysis revealed that the high-pressure polymorph crystallizes in the polar and chiral space group P63mc with hexagonal close-packing (hcp) of anions, unlike the ambient-pressure α-Li3ScCl6 and its spinel analog with cubic closed packing (ccp) of anions. Investigation of the known Li3MX6 family further revealed that the cation/anion radius ratio, rM/rX, is the factor that determines which anion sublattice is formed and that in γ-Li3ScCl6, the difference in compressibility between Sc and Cl exceeds the ccp rM/rX threshold under pressure, enabling the ccp-to-hcp conversion. Electrochemical tests of γ-Li3ScCl6 demonstrate improved electrochemical reduction stability. These findings open up new avenues and design principles for lithium solid electrolytes, enabling routes for materials exploration and tuning electrochemical stability without compositional changes or the use of coatings.
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Affiliation(s)
- Fenghua Ding
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Atsunori Doi
- Advanced Materials Development Laboratory, Sumitomo Chemical Co. Ltd., Tsukuba, 300-3294, Japan
| | - Takafumi Ogawa
- Nanostructures Research Laboratory, Japan Fine Ceramics Center, Nagoya, 456-8587, Japan
| | - Hiroki Ubukata
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Tong Zhu
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Daichi Kato
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Cédric Tassel
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Itaru Oikawa
- Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - Naoki Inui
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Satoru Kuze
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Tsutomu Yamabayashi
- Energy & Functional Materials Research Laboratory, Sumitomo Chemical Co. Ltd., Niihama, 792-8521, Japan
| | - Kotaro Fujii
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-W4-17, O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Masatomo Yashima
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-W4-17, O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Xing Ou
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China
| | - Zhijian Wang
- Hunan Rare Earth Metal Materials Research Institute Co. Ltd., Changsha, 410126, PR China
| | - Xiaobo Min
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China
| | - Koji Fujita
- Department of Material Chemistry, Graduate School of Engineering, Kyoto, University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Hitoshi Takamura
- Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - Akihide Kuwabara
- Nanostructures Research Laboratory, Japan Fine Ceramics Center, Nagoya, 456-8587, Japan
| | - Tianren Zhang
- Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, California, 92093, USA
| | - Kent J Griffith
- Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, California, 92093, USA
| | - Zhang Lin
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China
| | - Liyuan Chai
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China
| | - Hiroshi Kageyama
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan
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Wang W, Zhou Y, Zhang B, Huang W, Cheng L, Wang J, He X, Yu L, Xiao Z, Wen J, Liu T, Amine K, Ou X. Optimized In Situ Doping Strategy Stabling Single-Crystal Ultrahigh-Nickel Layered Cathode Materials. ACS Nano 2024; 18:8002-8016. [PMID: 38451853 DOI: 10.1021/acsnano.3c10986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Single-crystal Ni-rich cathodes offer promising prospects in mitigating intergranular microcracks and side reaction issues commonly encountered in conventional polycrystalline cathodes. However, the utilization of micrometer-sized single-crystal particles has raised concerns about sluggish Li+ diffusion kinetics and unfavorable structural degradation, particularly in high Ni content cathodes. Herein, we present an innovative in situ doping strategy to regulate the dominant growth of characteristic planes in the single-crystal precursor, leading to enhanced mechanical properties and effectively tackling the challenges posed by ultrahigh-nickel layered cathodes. Compared with the traditional dry-doping method, our in situ doping approach possesses a more homogeneous and consistent modifying effect from the inside out, ensuring the uniform distribution of doping ions with large radius (Nb, Zr, W, etc). This mitigates the generally unsatisfactory substitution effect, thereby minimizing undesirable coating layers induced by different solubilities during the calcination process. Additionally, the uniformly dispersed ions from this in situ doping are beneficial for alleviating the two-phase coexistence of H2/H3 and optimizing the Li+ concentration gradient during cycling, thus inhibiting the formation of intragranular cracks and interfacial deterioration. Consequently, the in situ doped cathodes demonstrate exceptional cycle retention and rate performance under various harsh testing conditions. Our optimized in situ doping strategy not only expands the application prospects of elemental doping but also offers a promising research direction for developing high-energy-density single-crystal cathodes with extended lifetime.
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Affiliation(s)
- Wei Wang
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
| | - Yanan Zhou
- Zhejiang Power New Energy Co. Ltd., Zhuji 311899, P.R. China
| | - Bao Zhang
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
- Zhejiang Power New Energy Co. Ltd., Zhuji 311899, P.R. China
| | - Weiyuan Huang
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Lei Cheng
- Zhejiang Power New Energy Co. Ltd., Zhuji 311899, P.R. China
| | - Jing Wang
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Xinyou He
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
| | - Lei Yu
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Zhiming Xiao
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
| | - Jianguo Wen
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Tongchao Liu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Khalil Amine
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Xing Ou
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
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Cui Z, Jia Z, Ruan D, Nian Q, Fan J, Chen S, He Z, Wang D, Jiang J, Ma J, Ou X, Jiao S, Wang Q, Ren X. Molecular anchoring of free solvents for high-voltage and high-safety lithium metal batteries. Nat Commun 2024; 15:2033. [PMID: 38448427 PMCID: PMC10918083 DOI: 10.1038/s41467-024-46186-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 02/18/2024] [Indexed: 03/08/2024] Open
Abstract
Constraining the electrochemical reactivity of free solvent molecules is pivotal for developing high-voltage lithium metal batteries, especially for ether solvents with high Li metal compatibility but low oxidation stability ( <4.0 V vs Li+/Li). The typical high concentration electrolyte approach relies on nearly saturated Li+ coordination to ether molecules, which is confronted with severe side reactions under high voltages ( >4.4 V) and extensive exothermic reactions between Li metal and reactive anions. Herein, we propose a molecular anchoring approach to restrict the interfacial reactivity of free ether solvents in diluted electrolytes. The hydrogen-bonding interactions from the anchoring solvent effectively suppress excessive ether side reactions and enhances the stability of nickel rich cathodes at 4.7 V, despite the extremely low Li+/ether molar ratio (1:9) and the absence of typical anion-derived interphase. Furthermore, the exothermic processes under thermal abuse conditions are mitigated due to the reduced reactivity of anions, which effectively postpones the battery thermal runaway.
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Affiliation(s)
- Zhuangzhuang Cui
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zhuangzhuang Jia
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Digen Ruan
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Qingshun Nian
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Jiajia Fan
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Shunqiang Chen
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zixu He
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Dazhuang Wang
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Jinyu Jiang
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Jun Ma
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xing Ou
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, No.932 South Lushan Road, Changsha, Hunan, 410083, PR China
| | - Shuhong Jiao
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Qingsong Wang
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui, 230026, China.
| | - Xiaodi Ren
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China.
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Zhang Z, Wang J, Qin H, Zhang B, Lin H, Zheng W, Wang D, Ji X, Ou X. Constructing an Anion-Braking Separator to Regulate Local Li + Solvation Structure for Stabilizing Lithium Metal Batteries. ACS Nano 2024; 18:2250-2260. [PMID: 38180905 DOI: 10.1021/acsnano.3c09849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2024]
Abstract
Lithium metal batteries (LMBs) offer significant advantages in energy density and output voltage, but they are severely limited by uncontrollable Li dendrite formation resulting from uneven Li+ behaviors and high reactivity with potential co-solvent plating. Herein, to uniformly enhance the Li behaviors in desolvation and diffusion, the local Li+ solvation shell structure is optimized by constructing an anion-braking separator, hence dynamically reducing the self-amplifying behavior of dendrites. As a prototypal, two-dimensional lithiated-montmorillonite (LiMMT) is blade-coated on the commercial separator, where abundant -OH groups as Lewis acidic sites and electron acceptors could selectively adsorb corresponding FSI- anions, regulating the solvation shell structure and restricting their migration. Meanwhile, the weakened anion mobility delays the time of breaking electrical neutrality, and the Li nucleation density is quantified through the respective experimental, theoretical and spectroscopical results, providing a comprehensive understanding of modifying anion and cation behaviors on dendritic growth suppression. As anticipated, a long Li plating/stripping lifespan up to 1800 h and a significantly increased average Coulombic efficiency of 98.8% are achieved under 3.0 mAh cm-2. The fabricated high-loading Li-LFP or Li-NCM523 full-cells display the cycle durability with enhanced capacity retention of nearly 100%, providing the instructive guide towards realizing dendrite-free LMBs.
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Affiliation(s)
- Zibo Zhang
- Hunan Province Key Laboratory of Chemical Power Source, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
| | - Jian Wang
- i-Lab & CAS Key Laboratory of Nanophotonic Materials and Devices, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, P. R. China
- Helmholtz Institute Ulm (HIU), Ulm D89081, Germany
| | - Haozhe Qin
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
| | - Bao Zhang
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
| | - Hongzhen Lin
- i-Lab & CAS Key Laboratory of Nanophotonic Materials and Devices, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, P. R. China
| | - Weitao Zheng
- Key Laboratory of Automobile Materials of MOE, School of Materials Science and Engineering, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun 130012, P. R. China
| | - Dong Wang
- Key Laboratory of Automobile Materials of MOE, School of Materials Science and Engineering, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun 130012, P. R. China
| | - Xiaobo Ji
- Hunan Province Key Laboratory of Chemical Power Source, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Xing Ou
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China
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Zhang B, Zhao Y, Li M, Wang Q, Wang X, Cheng L, Ming L, Ou X, Wang X. Amorphous Aluminum Oxide-Coated NaFe 0.33Ni 0.33Mn 0.33O 2 Cathode Materials: Enhancing Interface Charge Transfer for High-Performance Sodium-Ion Batteries. ACS Appl Mater Interfaces 2023. [PMID: 37874868 DOI: 10.1021/acsami.3c09242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Layered cathode materials for sodium-ion batteries (SIBs) have gained considerable attention as promising candidates owing to their high capacity and potential for industrial scalability. Nonetheless, challenges arise from stress and structural degradation resulting from the deposition of larger ion radius species, leading to diminished cyclic stability and rate performance. In this study, we present a novel and straightforward strategy that combines the synergistic effects of an amorphous aluminum oxide coating and aluminum ion doping. This approach effectively addresses the issues of grain cracking and expands the interlayer spacing of alkali metal ions in SIB materials, thereby enhancing their overall performance. Consequently, it optimizes the diffusion of charge carriers and facilitates interfacial charge transfer, leading to remarkable improvements in the performance of the NaNi0.33Mn0.33Fe0.33O2 material with 0.4 wt % amorphous aluminum oxide coating (NNMF-0.4A), which exhibits reversible capacities of 135.7, 114.3, 106.8, 99.9, 89.5, and 77.1 mAh g-1 at 0.1, 0.5, 1, 2, 5, and 10 C, respectively. Furthermore, the NNMF-0.4A material maintains a capacity of 76.7 mA g-1 after 500 cycles at a current density of 800 mA g-1 (10 C), with a capacity retention rate of 98.2%. Our findings present a groundbreaking pathway for modifying high-power sodium-ion battery cathode materials, contributing to the advancement of sustainable energy storage technologies.
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Affiliation(s)
- Bao Zhang
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Yi Zhao
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Minghuang Li
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Qi Wang
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Xingyuan Wang
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Lei Cheng
- Zhejiang Power New energy Co., LTD, Zhuji 311800, PR China
| | - Lei Ming
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Xing Ou
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Xiaowei Wang
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
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Ou X, He X, Wang Y, Hu C. Induction Chemotherapy and Toripalimab for Larynx Preservation in Resectable Locally Advanced Laryngeal/Hypopharyngeal Carcinoma: Preliminary Results of INSIGHT Study. Int J Radiat Oncol Biol Phys 2023; 117:S99. [PMID: 37784619 DOI: 10.1016/j.ijrobp.2023.06.2296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Previous studies have demonstrated excellent pathological response of induction PD-1 inhibitor with chemotherapy for locally advanced head and neck cancer. To our knowledge, there is scarce evidence on induction chemotherapy (ICT) and PD-1 inhibitor in organ preservation for patients (pts) with laryngeal/hypopharyngeal carcinoma. Hence, the aim of this study is to evaluate the efficacy and toxicities of ICT and PD-1inhibitor (Toripalimab) followed by radiotherapy or surgery, for pts with resectable locally advanced laryngeal/hypopharyngeal carcinoma. MATERIALS/METHODS This isa single-arm phase II study. Pts with histopathologic confirmed, resectable locally advanced laryngeal/hypopharyngeal squamous cell carcinoma and ECOG PS 0-1 were eligible. Three cycles of ICT (paclitaxel 175 mg/m d1, cisplatin 25 mg/m d1-3) combined with PD-1 inhibitor (Toripalimab 240 mg d0) were given. Response assessment (RECIST 1.1) was performed post-ICT. Patients with complete response (CR)/partial response (PR) of primary tumor received concurrent chemoradiation, followed by maintenance therapy of Toripalimab for eight cycles. Otherwise, patients were referred to surgery, followed by adjuvant radiation (RT)/chemoradiation (CRT), and then maintenance therapy of Toripalimab. The primary endpoint is larynx-preservation (LP) rate at 3 months post-RT. Forty-two patients were planned. Based on a two-stage Fleming design (one-sided α:10%, power: 80%), if at least 22 patients attained LP of the first 27 patients in stage I or at least thirty-two pts attained LP of the 42 patients at the end of stage II, the null hypothesis would be rejected. The cohort would enroll 15 more pts in stage II if 19-21 pts in stage I observed LP, and the study would be terminated if the number of pts with LP were less than 18 in stage I. RESULTS A total of 27 pts were enrolled. By the cut-off date Feb 8, 2023, all reached at least 3 months of follow-up post-RT. Median age was 63 (53-74) years with 92.6% male. Hypopharyngeal cancer accounted for 66.7%. There were 74.1% who were T3 to T4, and 77.7% were N2 to N3. Six cases had primary invasion of esophagus and five pts underwent pretreatment tracheostomy. ORR of ICT was 85.2%. Afterward, 21 pts were treated with concurrent CRT, while 6 pts received surgery of primary tumor. At 3 months post-RT, 23 pts attained organ preservation and the LP rate was 85.2%. With a median follow-up of 13.5 months, 1-year OS rate, PFS rate and LP survival rate was 83.1%, 79.5% and 79.4%, respectively. During ICT, 22.2% of pts experienced grade 3-4 treatment-related AEs (TRAEs). The most common grade 3-4 TRAEs were nausea and neutrophil count decreased. CONCLUSION The primary endpoint LP rate was met. In this cohort of extensive locally advanced laryngeal/hypopharyngeal carcinoma, ICT and Toripalimab followed by radiotherapy or surgery resulted in satisfactory short-term LP rate and encouraging survival.
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Affiliation(s)
- X Ou
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - X He
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Y Wang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
| | - C Hu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
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Gong H, Xiao H, Ye L, Ou X. High-performance expanded graphite regenerated from spent lithium-ion batteries by integrated oxidation and purification method. Waste Manag 2023; 171:292-302. [PMID: 37696171 DOI: 10.1016/j.wasman.2023.08.046] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 08/25/2023] [Accepted: 08/31/2023] [Indexed: 09/13/2023]
Abstract
Currently, the recycling of spent lithium-ion batteries (LIBs) has mainly been focused on the extraction of precious metals, such as lithium, cobalt and nickel from cathodes, while the waste graphite anode has been overlooked due to its low-cost production and abundant resources reserve. However, there are enormous potential value and pollution risk in the view of graphite recycling. Thus, we propose an original method to prepare expanded graphite (EG) as new anode material generated from waste graphite in LIBs which integrates the oxidation and purification in one-step. By regulating the oxidizability of potassium hypermanganate in the sulfur-phosphorus mixed acid system, the expansion of graphite and removal of impurities are realized simultaneously and thoroughly. As anticipated, the shortening of preparation process and purification procedure can also reduce the generation of polluting substances and production cost. It displays excellent electrochemical performance (reversible capacity of 435.8 mAh·g-1 at 0.1C and long-term cycling property of 370 mAh·g-1 at 1C after 1000 cycles), which is even higher than that of pristine commercial graphite. This delicate strategy of high-performance expanded graphite recycling achieves the integration of purification and value-added processes, providing the instructive guide to regenerate industrial-grade anode materials for the increasing LIBs demand in the future.
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Affiliation(s)
- Haiqiang Gong
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Hougui Xiao
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Long Ye
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Xing Ou
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China.
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Dudley JA, Nagaraj UD, Merhar S, Mangano FT, Kline-Fath BM, Ou X, Acheson A, Yuan W. DTI of Opioid-Exposed Fetuses Using ComBat Harmonization: A Bi-Institutional Study. AJNR Am J Neuroradiol 2023; 44:1084-1089. [PMID: 37562830 PMCID: PMC10494946 DOI: 10.3174/ajnr.a7951] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/25/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND AND PURPOSE The underlying mechanisms leading to altered cognitive, behavioral, and vision outcomes in children with prenatal opioid exposure are yet to be fully understood. Some studies suggest WM alterations in infants and children with prenatal opioid exposure; however, the time course of WM changes is unknown. We aimed to evaluate differences in diffusion tensor imaging MRI parameters in the brain between opioid exposed fetuses and normal controls. MATERIALS AND METHODS This is a pilot, prospective cohort study in which subjects in the third trimester of pregnancy underwent fetal DTI of the brain with 20 noncolinear diffusion directions and a b-value of 500 s/mm2 at 2.5-mm isotropic resolution. RESULTS The study included a total of 26 fetuses, 11 opioid-exposed (mean gestational age, 32.61 [SD, 2.35] weeks) and 15 unexposed controls (mean gestational age, 31.77 [SD, 1.68] weeks). After we adjusted for gestational age, fractional anisotropy values were significantly higher in opioid-exposed fetuses relative to controls in 8 WM tracts: the bilateral lemniscus (left: P = .017; right: P = .020), middle cerebellar peduncle (P = .027), left inferior cerebellar peduncle (P = .026), right sagittal stratum (P = .040), right fornix stria terminalis (P = .022), right inferior fronto-occipital fasciculus (P = .011), and the right uncinate fasciculus (P = .033). Significant alteration was also identified in other DTI indices involving a series of brain regions. CONCLUSIONS Our data demonstrate initial evidence of cerebral WM microstructural differences between opioid-exposed fetuses and unexposed controls. Further studies in larger patient populations will be needed to fully understand these findings.
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Affiliation(s)
- J A Dudley
- From the Department of Radiology and Medical Imaging (J.A.D., U.D.N., B.M.K.-F., W.Y.), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- University of Cincinnati College of Medicine (J.A.D., U.D.N., S.M., F.T.M., B.M.K.-F., W.Y.), Cincinnati, Ohio
| | - U D Nagaraj
- From the Department of Radiology and Medical Imaging (J.A.D., U.D.N., B.M.K.-F., W.Y.), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- University of Cincinnati College of Medicine (J.A.D., U.D.N., S.M., F.T.M., B.M.K.-F., W.Y.), Cincinnati, Ohio
| | - S Merhar
- University of Cincinnati College of Medicine (J.A.D., U.D.N., S.M., F.T.M., B.M.K.-F., W.Y.), Cincinnati, Ohio
- Perinatal Institute, Division of Neonatology (S.M.), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - F T Mangano
- University of Cincinnati College of Medicine (J.A.D., U.D.N., S.M., F.T.M., B.M.K.-F., W.Y.), Cincinnati, Ohio
- Department of Neurosurgery (F.T.M.), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - B M Kline-Fath
- From the Department of Radiology and Medical Imaging (J.A.D., U.D.N., B.M.K.-F., W.Y.), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- University of Cincinnati College of Medicine (J.A.D., U.D.N., S.M., F.T.M., B.M.K.-F., W.Y.), Cincinnati, Ohio
| | - X Ou
- Departments of Radiology (X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Departments of Pediatrics (X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - A Acheson
- Department of Psychiatry (A.A.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - W Yuan
- From the Department of Radiology and Medical Imaging (J.A.D., U.D.N., B.M.K.-F., W.Y.), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- University of Cincinnati College of Medicine (J.A.D., U.D.N., S.M., F.T.M., B.M.K.-F., W.Y.), Cincinnati, Ohio
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9
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Xiao Z, Zhang B, He X, Ou X. Cobalt/aluminum co-substitution in a LiNi 0.9Mn 0.1O 2 layered cathode for improving kinetics. Chem Commun (Camb) 2023. [PMID: 37272911 DOI: 10.1039/d3cc01099f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report the improved kinetic mechanism of a nickel-rich LiNi0.84Mn0.10Co0.03Al0.03O2 cathode. The important role of Co/Al in inhibiting cation disorder to increase the lithium ion diffusion rate is revealed. Impressively, it retains an excellent capacity retention of 76.8% after 200 cycles under the high-rate condition (5C).
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Affiliation(s)
- Zhiming Xiao
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
| | - Bao Zhang
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
| | - Xinyou He
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
| | - Xing Ou
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
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10
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Ye L, Lu N, Zhang B, Qin H, Wang C, Ou X. In-situ catalytic mechanism coupling quantum dot effect for achieving high-performance sulfide anode in potassium-ion batteries. J Colloid Interface Sci 2023; 638:606-615. [PMID: 36774874 DOI: 10.1016/j.jcis.2023.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023]
Abstract
Though numerous framework structures have been constructed to strengthen the reaction kinetics and durability, the inevitable generation of polysulfide dissolution during conversion-process can cause irreparable destruction to ion-channel and crystal structure integrality, which has become a huge obstacle to the application of metal-sulfide in potassium-ion batteries. Herein, the quantum dot structure with catalytic conversion capability is synchronously introduced into the design of FeS2 anode materials to heighten its K+-storage performance. The constructed quantum dot structure anchored by the graphene with space-confinement effect can shorten the ion diffusion path and enlarge the active area, thus accelerating the K+-ions transmission kinetics and absorption action, respectively. The intermediate phase of formed Fe-nanoclusters possesses high-active catalysis ability, which can effectively suppress the polysulfide shuttle combined with the enhanced absorption effect, fully guaranteeing the structure stability and cycling reversibility. Predictably, the fabricated quantum dot FeS2 can express a prominent advantage in rapid potassiation/depotassiation processes (518.1 mAh g-1, 10 A g-1) and a superior cycling lifespan with gratifying reversible capacity at superhigh rate (177.7 mAh g-1, 9000 cycles, 5 A g-1). Therefore, engineering quantum dot structure with self-induced catalysis action for detrimental polysulfide is an achievable strategy to implement high-performance sulfide anode materials for K-ions accommodation.
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Affiliation(s)
- Long Ye
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Na Lu
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Bao Zhang
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Haozhe Qin
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Chunhui Wang
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China.
| | - Xing Ou
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China.
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11
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Wenbin Y, Liu T, He M, Yi J, Tang L, Ou X, Hu C. 226MO Is induction chemotherapy beneficial in locally recurrent nasopharyngeal carcinoma before re-irradiation? A multicenter retrospective analysis. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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12
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Hammel P, Golan T, Reni M, Van Cutsem E, Macarulla Mercade T, Hall M, Park J, Hochhauser D, Arnold D, Oh DY, Reinacher-Schick A, Tortora G, Algül H, O'Reilly E, Sharan K, Ou X, Cui K, Locker G, Kindler H. 1298P Extended overall survival results from the POLO study of active maintenance olaparib in patients with metastatic pancreatic cancer and a germline BRCA mutation. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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13
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Lightowler M, Li S, Ou X, Hofer G, Cho J, Zou X, Lu M, Xu H. Navigating crystal forms in pharmaceutical compounds by 3DED/microED. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322091069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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14
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Cao L, Fang S, Xu B, Zhang B, Wang C, Xiao Z, Zou G, Hou H, Ou X, Ji X. Enabling Reversible Reaction by Uniform Distribution of Heterogeneous Intermediates on Defect-Rich SnSSe/C Layered Heterostructure for Ultralong-Cycling Sodium Storage. Small 2022; 18:e2202134. [PMID: 35638480 DOI: 10.1002/smll.202202134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/11/2022] [Indexed: 06/15/2023]
Abstract
2D layered Sn-based materials have attracted enormous attention due to their remarkable performance in sodium-ion batteries. Nevertheless, this promising candidate involves a complex Na+ -storage process with multistep conversion-alloying reactions, which induces the uneven dispersion of heterogeneous intermediate accompanied by severe agglomeration of metallic Sn0 , inescapably resulting in poor reaction reversibility with sluggish rate capability and inferior cyclic lifespan. Herein, a delicately layered heterostructure SnSSe/C consisting of defect-rich SnSSe and graphene is designed and successfully achieved via a facile hydrothermal process. The equal anionic substitution of Se in SnSSe crystal can trigger numerous defects, which can not only facilitate Na+ diffusion but also accelerate the nucleation process by inducing quantum-dot-level uniform distribution of heterogeneous intermediates, Na2 Se/Na2 S and Sn0 . Concurrently, in situ formed uniform Na2 Se/Na2 S grain boundaries confined by this unique layered heterostructure may effectively suppress the agglomeration of metallic Sn0 nanograins and boost the reversibility of conversion-alloying reaction. As a result, the SnSSe/C displays significant improvement in Na-storage performance, in terms of remarkable rate capability and ultralong cycling lifespan. This work, focusing on controlling intermediate distribution, provides an effective strategy to boost reaction reversibility, which can be wildly employed in conversion-based electrodes for energy storage regions.
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Affiliation(s)
- Liang Cao
- Hunan Province Key Laboratory of Chemical Power Source, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
- School of Metallurgy and Environment, Central South University, No.932 South Lushan Road, Changsha, Hunan, 410083, P. R. China
| | - Shaojun Fang
- School of Metallurgy and Environment, Central South University, No.932 South Lushan Road, Changsha, Hunan, 410083, P. R. China
| | - Baohe Xu
- School of Metallurgy and Environment, Central South University, No.932 South Lushan Road, Changsha, Hunan, 410083, P. R. China
| | - Bao Zhang
- School of Metallurgy and Environment, Central South University, No.932 South Lushan Road, Changsha, Hunan, 410083, P. R. China
| | - Chunhui Wang
- School of Metallurgy and Environment, Central South University, No.932 South Lushan Road, Changsha, Hunan, 410083, P. R. China
| | - Zhiming Xiao
- School of Metallurgy and Environment, Central South University, No.932 South Lushan Road, Changsha, Hunan, 410083, P. R. China
| | - Guoqiang Zou
- Hunan Province Key Laboratory of Chemical Power Source, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Hongshuai Hou
- Hunan Province Key Laboratory of Chemical Power Source, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Xing Ou
- School of Metallurgy and Environment, Central South University, No.932 South Lushan Road, Changsha, Hunan, 410083, P. R. China
| | - Xiaobo Ji
- Hunan Province Key Laboratory of Chemical Power Source, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
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15
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Abstract
Graphite with an activated edge is carefully designed via a controllable solution treatment and sintering process. The simultaneous existence of extra active sites and expanded layers at the edge enable it to exhibit excellent fast-charging performance in a half-cell and full-cell set-up. This work highlights an overall understanding of polarization and the optimum structure for a fast-charging anode.
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Affiliation(s)
- Peng Du
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
| | - Bao Zhang
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
| | - Liang Cao
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
| | - Xing Ou
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
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16
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Ou X, Liu T, Zhong W, Fan X, Guo X, Huang X, Cao L, Hu J, Zhang B, Chu YS, Hu G, Lin Z, Dahbi M, Alami J, Amine K, Yang C, Lu J. Enabling high energy lithium metal batteries via single-crystal Ni-rich cathode material co-doping strategy. Nat Commun 2022; 13:2319. [PMID: 35484128 PMCID: PMC9050889 DOI: 10.1038/s41467-022-30020-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 04/12/2022] [Indexed: 11/09/2022] Open
Abstract
High-capacity Ni-rich layered oxides are promising cathode materials for secondary lithium-based battery systems. However, their structural instability detrimentally affects the battery performance during cell cycling. Here, we report an Al/Zr co-doped single-crystalline LiNi0.88Co0.09Mn0.03O2 (SNCM) cathode material to circumvent the instability issue. We found that soluble Al ions are adequately incorporated in the SNCM lattice while the less soluble Zr ions are prone to aggregate in the outer SNCM surface layer. The synergistic effect of Al/Zr co-doping in SNCM lattice improve the Li-ion mobility, relief the internal strain, and suppress the Li/Ni cation mixing upon cycling at high cut-off voltage. These features improve the cathode rate capability and structural stabilization during prolonged cell cycling. In particular, the Zr-rich surface enables the formation of stable cathode-electrolyte interphase, which prevent SNCM from unwanted reactions with the non-aqueous fluorinated liquid electrolyte solution and avoid Ni dissolution. To prove the practical application of the Al/Zr co-doped SNCM, we assembled a 10.8 Ah pouch cell (using a 100 μm thick Li metal anode) capable of delivering initial specific energy of 504.5 Wh kg-1 at 0.1 C and 25 °C.
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Affiliation(s)
- Xing Ou
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.,School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Tongchao Liu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, United States
| | - Wentao Zhong
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Xinming Fan
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China.
| | - Xueyi Guo
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Xiaojing Huang
- National Synchrotron Light source II, Brookhaven National Laboratory, Upton, NY, 11973, United States
| | - Liang Cao
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.,School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Junhua Hu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Bao Zhang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Yong S Chu
- National Synchrotron Light source II, Brookhaven National Laboratory, Upton, NY, 11973, United States
| | - Guorong Hu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Zhang Lin
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Mouad Dahbi
- Materials Science and Nano-Engineering Department, Mohammed VI Polytechnic University, Ben Guerir, Morocco
| | - Jones Alami
- Materials Science and Nano-Engineering Department, Mohammed VI Polytechnic University, Ben Guerir, Morocco
| | - Khalil Amine
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, United States.
| | - Chenghao Yang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
| | - Jun Lu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, United States.
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17
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Zhao W, Zou L, Zhang L, Fan X, Zhang H, Pagani F, Brack E, Seidl L, Ou X, Egorov K, Guo X, Hu G, Trabesinger S, Wang C, Battaglia C. Assessing Long-Term Cycling Stability of Single-Crystal Versus Polycrystalline Nickel-Rich NCM in Pouch Cells with 6 mAh cm -2 Electrodes. Small 2022; 18:e2107357. [PMID: 35182015 DOI: 10.1002/smll.202107357] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Lithium-ion batteries based on single-crystal LiNi1- x - y Cox Mny O2 (NCM, 1-x-y ≥ 0.6) cathode materials are gaining increasing attention due to their improved structural stability resulting in superior cycle life compared to batteries based on polycrystalline NCM. However, an in-depth understanding of the less pronounced degradation mechanism of single-crystal NCM is still lacking. Here, a detailed postmortem study is presented, comparing pouch cells with single-crystal versus polycrystalline LiNi0.60 Co0.20 Mn0.20 O2 (NCM622) cathodes after 1375 dis-/charge cycles against graphite anodes. The thickness of the cation-disordered layer forming in the near-surface region of the cathode particles does not differ significantly between single-crystal and polycrystalline particles, while cracking is pronounced for polycrystalline particles, but practically absent for single-crystal particles. Transition metal dissolution as quantified by time-of-flight mass spectrometry on the surface of the cycled graphite anode is much reduced for single-crystal NCM622. Similarly, CO2 gas evolution during the first two cycles as quantified by electrochemical mass spectrometry is much reduced for single-crystal NCM622. Benefitting from these advantages, graphite/single-crystal NMC622 pouch cells are demonstrated with a cathode areal capacity of 6 mAh cm-2 with an excellent capacity retention of 83% after 3000 cycles to 4.2 V, emphasizing the potential of single-crystalline NCM622 as cathode material for next-generation lithium-ion batteries.
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Affiliation(s)
- Wengao Zhao
- Materials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials, Science and Technology, Dübendorf, 8600, Switzerland
| | - Lianfeng Zou
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 3335 Innovation Boulevard, Richland, WA, 99354, USA
| | - Leiting Zhang
- Electrochemistry Laboratory, Paul Scherrer Institute, Villigen, 5232, Switzerland
| | - Xinming Fan
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, 410083, P. R. China
- Powder Metallurgy Research Institute, Central South University, Hunan, 410083, P. R. China
| | - Hehe Zhang
- Clean Nano Energy Center, State Key Laboratory of Metastable Material Science and Technology, Yanshan University, Qinhuangdao, 066004, China
| | - Francesco Pagani
- Materials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials, Science and Technology, Dübendorf, 8600, Switzerland
| | - Enzo Brack
- Materials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials, Science and Technology, Dübendorf, 8600, Switzerland
| | - Lukas Seidl
- Materials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials, Science and Technology, Dübendorf, 8600, Switzerland
| | - Xing Ou
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, 410083, P. R. China
| | - Konstantin Egorov
- Materials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials, Science and Technology, Dübendorf, 8600, Switzerland
| | - Xueyi Guo
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, 410083, P. R. China
| | - Guorong Hu
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, 410083, P. R. China
| | - Sigita Trabesinger
- Electrochemistry Laboratory, Paul Scherrer Institute, Villigen, 5232, Switzerland
| | - Chongmin Wang
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 3335 Innovation Boulevard, Richland, WA, 99354, USA
| | - Corsin Battaglia
- Materials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials, Science and Technology, Dübendorf, 8600, Switzerland
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18
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Su S, Bai X, Ming L, Xiao Z, Wang C, Zhang B, Cheng L, Ou X. Influence of sintering temperature on the electrochemical properties of P2-type Na0.67Mn0.7Ni0.2Mg0.1O2 cathodes for sodium-ion batteries. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.122916] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Wang W, Xia HF, Zhang B, Wang C, Cao L, Ming L, Ou X. Flexible FeVO x porous nanorods on carbon cloth for long-life aqueous energy storage. Chem Commun (Camb) 2022; 58:3625-3628. [PMID: 35201248 DOI: 10.1039/d2cc00063f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the FeVOx porous nanorods on carbon cloth as a novel cathode material for flexible aqueous energy storage. It exhibits excellent electrochemical properties and cycling stability in supercapacitors and zinc-ion batteries. Moreover, this work makes significant progress for developing high-performance electrodes and provides a foundation for future research.
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Affiliation(s)
- Wei Wang
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
| | - Hai-Feng Xia
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
| | - Bao Zhang
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
| | - Chunhui Wang
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
| | - Liang Cao
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
| | - Lei Ming
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
| | - Xing Ou
- School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China.
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20
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Zhao M, Zheng Y, Zhang JF, Ou X, Gao X, Zhang B, Cao Y. The effect of adhesive surface with porcelain sintering and two silane coupling agents on the adhesive properties of zirconia. Ann Transl Med 2022; 10:87. [PMID: 35282084 PMCID: PMC8848442 DOI: 10.21037/atm-22-72] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/18/2022] [Indexed: 11/06/2022]
Abstract
Background To explore the effect of adhesive surface with porcelain sintering and different silane coupling agents on adhesive properties of zirconia ceramics. Methods Zirconia blocks (n=72) were randomly divided into two large groups (n=36) according to whether the adhesive surface was treated with sintered porcelain: N (no porcelain sintering), P (porcelain sintering). Then, according to different silane coupling agents, each group was randomly divided into three small groups, six small groups in total (n=12): NN (no porcelain sintering and agent), NM (no porcelain sintering + Monobond-S), NC (no porcelain sintering + Clearfil Repair); PN (porcelain sintering + no agent), PM (porcelain sintering + Monobond-S), PC (porcelain sintering + Clearfil Repair). After surface treatment, RelyX Unicem Cement was used to make ceramic-resin bonding specimens. Then, each of the six small groups was randomly divided into two subgroups; shear bond strength (SBS) was tested and bond failure mode was analyzed before and after thermal cycling 5,000 times. Results (I) SBS analysis: the SBS values of the P groups were significantly higher than those of the N groups (P<0.05). The groups treated with silane coupling agents showed higher SBS values than the control group (P<0.05), and the PC groups showed the highest SBS values (P<0.05). The SBS of each group was significantly decreased after thermal cycling (P<0.05). (II) The microcharacteristics under scanning electron microscopy and energy spectrum analysis: the ceramic blocks being treated by porcelain sintering showed more roughness than the control group. A large amount of silicon (Si) appeared on the surface of the ceramic blocks after porcelain sintering. Conclusions (I) Treating the adhesive surface by porcelain sintering can improve the bonding strength between zirconia and RelyX Unicem Cement, and the effect was better in conjunction with silane coupling agent. (II) The two kinds of silane coupling agent (Monobond-S, Clearfil Repair) can improve the bonding strength between zirconia and resin cement. The effect of Clearfil Repair is better than that of Monobond-S. (III) Thermal cycling had a significant adverse effect on SBS between zirconia and RelyX Unicem Cement. Clearfil Repair is helpful in improving the durability of zirconia bonding strength.
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Affiliation(s)
- Man Zhao
- Department of Stomatology, The People's Hospital of Longhua Shenzhen, Shenzhen, China
| | - Yaqi Zheng
- Department of Stomatology, The People's Hospital of Longhua Shenzhen, Shenzhen, China
| | - Jia-Feng Zhang
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha, China
| | - Xing Ou
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha, China
| | - Xing Gao
- Center of Stomatology, Xiangya Hospital of Central South University, Changsha, China
| | - Bao Zhang
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha, China
| | - Yang Cao
- Medical Equipment Department, Xiangya Hospital of Central South University, Changsha, China
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21
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Zhao Z, Zhang B, Cheng L, Liu Z, Liu Y, Su S, Ming L, Zhang J, Ou X. Enhanced electrochemical and structural stability of Ni‐Rich cathode materials by lithium metaborate coating for lithium‐ion batteries. ChemElectroChem 2021. [DOI: 10.1002/celc.202101395] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zaowen Zhao
- Central South University School of Metallurgy and Environment CHINA
| | - Bao Zhang
- Central South University School of Metallurgy and Environment CHINA
| | - Lei Cheng
- Central South University School of Metallurgy and Environment CHINA
| | - Zihang Liu
- Central South University School of Metallurgy and Environment CHINA
| | - Yun Liu
- Central South University School of Metallurgy and Environment CHINA
| | - Shilin Su
- Central South University School of Metallurgy and Environment CHINA
| | - Lei Ming
- Central South University School of Metallurgy and Environment 932 Lu Shan Nan Lu, Yuelu District 410083 changsha CHINA
| | - Jiafeng Zhang
- Central South University School of Metallurgy and Environment CHINA
| | - Xing Ou
- Central South University School of Metallurgy and Environment CHINA
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22
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Na X, Phelan NE, Tadros MR, Wu Z, Andres A, Badger TM, Glasier CM, Ramakrishnaiah RR, Rowell AC, Wang L, Li G, Williams DK, Ou X. Maternal Obesity during Pregnancy is Associated with Lower Cortical Thickness in the Neonate Brain. AJNR Am J Neuroradiol 2021; 42:2238-2244. [PMID: 34620592 DOI: 10.3174/ajnr.a7316] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/09/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Recent studies have suggested that maternal obesity during pregnancy is associated with differences in neurodevelopmental outcomes in children. In this study, we aimed to investigate the relationships between maternal obesity during pregnancy and neonatal brain cortical development. MATERIALS AND METHODS Forty-four healthy women (28 normal-weight, 16 obese) were prospectively recruited at <10 weeks' gestation, and their healthy full-term neonates (23 boys, 21 girls) underwent brain MR imaging. All pregnant women had their body composition (fat mass percentage) measured at ∼12 weeks of pregnancy. All neonates were scanned at ∼2 weeks of age during natural sleep without sedation, and their 3D T1-weighted images were postprocessed by the new iBEAT2.0 software. Brain MR imaging segmentation and cortical surface reconstruction and parcellation were completed using age-appropriate templates. Mean cortical thickness for 34 regions in each brain hemisphere defined by the UNC Neonatal Cortical Surface Atlas was measured, compared between groups, and correlated with maternal body fat mass percentage, controlled for neonate sex and race, postmenstrual age at MR imaging, maternal age at pregnancy, and the maternal intelligence quotient and education. RESULTS Neonates born to obese mothers showed significantly lower (P ≤ .05, false discovery rate-corrected) cortical thickness in the left pars opercularis gyrus, left pars triangularis gyrus, and left rostral middle frontal gyrus. Mean cortical thickness in these frontal lobe regions negatively correlated (R = -0.34, P = .04; R = -0.50, P = .001; and R = -0.42, P = .01; respectively) with the maternal body fat mass percentage measured at early pregnancy. CONCLUSIONS Maternal obesity during pregnancy is associated with lower neonate brain cortical thickness in several frontal lobe regions important for language and executive functions.
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Affiliation(s)
- X Na
- From the Department of Radiology (X.N., C.M.G., R.R.R., A.C.R., X.O.).,Arkansas Children's Nutrition Center (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas.,Arkansas Children's Research Institute (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas
| | | | | | - Z Wu
- Department of Radiology (Z.W., L.W., G.L.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - A Andres
- Departments of Pediatrics (A.A., T.M.B., C.M.G., R.R.R., X.O.).,Arkansas Children's Nutrition Center (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas.,Arkansas Children's Research Institute (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas
| | - T M Badger
- Departments of Pediatrics (A.A., T.M.B., C.M.G., R.R.R., X.O.).,Arkansas Children's Nutrition Center (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas.,Arkansas Children's Research Institute (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas
| | - C M Glasier
- From the Department of Radiology (X.N., C.M.G., R.R.R., A.C.R., X.O.).,Departments of Pediatrics (A.A., T.M.B., C.M.G., R.R.R., X.O.)
| | - R R Ramakrishnaiah
- From the Department of Radiology (X.N., C.M.G., R.R.R., A.C.R., X.O.).,Departments of Pediatrics (A.A., T.M.B., C.M.G., R.R.R., X.O.)
| | - A C Rowell
- From the Department of Radiology (X.N., C.M.G., R.R.R., A.C.R., X.O.)
| | - L Wang
- Department of Radiology (Z.W., L.W., G.L.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - G Li
- Department of Radiology (Z.W., L.W., G.L.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - D K Williams
- Biostatistics (D.K.W.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - X Ou
- From the Department of Radiology (X.N., C.M.G., R.R.R., A.C.R., X.O.) .,Departments of Pediatrics (A.A., T.M.B., C.M.G., R.R.R., X.O.).,Arkansas Children's Nutrition Center (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas.,Arkansas Children's Research Institute (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas
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23
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Fan X, Ou X, Zhao W, Liu Y, Zhang B, Zhang J, Zou L, Seidl L, Li Y, Hu G, Battaglia C, Yang Y. In situ inorganic conductive network formation in high-voltage single-crystal Ni-rich cathodes. Nat Commun 2021; 12:5320. [PMID: 34493735 PMCID: PMC8423756 DOI: 10.1038/s41467-021-25611-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 08/04/2021] [Indexed: 11/10/2022] Open
Abstract
High nickel content in LiNixCoyMnzO2 (NCM, x ≥ 0.8, x + y + z = 1) layered cathode material allows high specific energy density in lithium-ion batteries (LIBs). However, Ni-rich NCM cathodes suffer from performance degradation, mechanical and structural instability upon prolonged cell cycling. Although the use of single-crystal Ni-rich NCM can mitigate these drawbacks, the ion-diffusion in large single-crystal particles hamper its rate capability. Herein, we report a strategy to construct an in situ Li1.4Y0.4Ti1.6(PO4)3 (LYTP) ion/electron conductive network which interconnects single-crystal LiNi0.88Co0.09Mn0.03O2 (SC-NCM88) particles. The LYTP network facilitates the lithium-ion transport between SC-NCM88 particles, mitigates mechanical instability and prevents detrimental crystalline phase transformation. When used in combination with a Li metal anode, the LYTP-containing SC-NCM88-based cathode enables a coin cell capacity of 130 mAh g−1 after 500 cycles at 5 C rate in the 2.75-4.4 V range at 25 °C. Tests in Li-ion pouch cell configuration (i.e., graphite used as negative electrode active material) demonstrate capacity retention of 85% after 1000 cycles at 0.5 C in the 2.75-4.4 V range at 25 °C for the LYTP-containing SC-NCM88-based positive electrode. Single-crystal Ni-rich cathodes suffer from side reactions with the electrolyte and slow Li-ion transport during high-voltage cycling. Herein, a Li1.4Y0.4Ti1.6(PO4)3 coating is applied to facilitate the Li-ion transport and improve the cycling life of the cell.
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Affiliation(s)
- Xinming Fan
- School of Metallurgy and Environment, Central South University, Changsha, P.R. China
| | - Xing Ou
- School of Metallurgy and Environment, Central South University, Changsha, P.R. China.
| | - Wengao Zhao
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland. .,School of Energy Research, Xiamen University, Xiamen, Fujian, P.R. China.
| | - Yun Liu
- School of Metallurgy and Environment, Central South University, Changsha, P.R. China
| | - Bao Zhang
- School of Metallurgy and Environment, Central South University, Changsha, P.R. China
| | - Jiafeng Zhang
- School of Metallurgy and Environment, Central South University, Changsha, P.R. China
| | - Lianfeng Zou
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Lukas Seidl
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - Yangzhong Li
- High Performance Computing Department, National Supercomputing Center in Shenzhen, Shenzhen, Guangdong, China
| | - Guorong Hu
- School of Metallurgy and Environment, Central South University, Changsha, P.R. China
| | - Corsin Battaglia
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - Yong Yang
- School of Energy Research, Xiamen University, Xiamen, Fujian, P.R. China.
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24
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Liu Y, Fan X, Luo B, Zhao Z, Shen J, Liu Z, Xiao Z, Zhang B, Zhang J, Ming L, Ou X. Understanding the enhancement effect of boron doping on the electrochemical performance of single-crystalline Ni-rich cathode materials. J Colloid Interface Sci 2021; 604:776-784. [PMID: 34298418 DOI: 10.1016/j.jcis.2021.07.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/01/2021] [Accepted: 07/04/2021] [Indexed: 11/27/2022]
Abstract
Ni-rich layered oxides are considered as promising cathode materials for Li-ion batteries (LIBs) due to their satisfying theoretical specific capacity and reasonable cost. However, poor cycling stability caused by structural collapse and interfacial instability of the Ni-rich cathode material limits the further applications of commercialization. Herein, a series of B-doped single-crystal LiNi0.83Co0.05Mn0.12O2 (NCM) are designed and fabricated, aiming to improve the structural stability and enlarge the Li+-ions diffusion paths simultaneously. It reveals that B-doping at TM layers will facilitate the formation of stronger B-O covalent bonds and expand the layered distance, significantly enhancing the thermodynamics and kinetic of NCM electrode. With the synergistic effect of single-crystalline architecture and appropriate B-doping, it can effectively alleviate the occurrence of internal strain with structural degradation and boost the intrinsic rate capability synchronously. As anticipated, the 0.6 mol % B-doped NCM electrode exhibits enhanced rate property and superior cycle stability, even at the harsh condition of high-temperature and elevated cut-off voltage. Remarkably, when tested in pouch-type full-cell, it maintains high reversible capacity with superior capacity retention of 91.35% over 500 cycles with only 0.0173% decay per cycle. This research illustrates the feasibility of B-doping and single-crystalline architecture to improve the electrochemical performance, which is beneficial to understand the enhancement effect and provides the design strategy for the commercialization progress of Ni-rich cathode materials.
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Affiliation(s)
- Yun Liu
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Xinming Fan
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, China.
| | - Bi Luo
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Zaowen Zhao
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Jixue Shen
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Zihang Liu
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Zhiming Xiao
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Bao Zhang
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Jiafeng Zhang
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Lei Ming
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Xing Ou
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, China.
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25
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Han J, Sequist L, Ahn M, Cho B, Yu H, Kim S, Yang J, Lee J, Su W, Kowalski D, Orlov S, Cantarini M, Ren S, Frewer P, Ou X, Janne P. FP14.03 Osimertinib + Savolitinib in pts with EGFRm MET-Amplified/Overexpressed NSCLC: Phase Ib TATTON Parts B and D Final Analysis. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Ying RS, Le T, Cai WP, Li YR, Luo CB, Cao Y, Wen CY, Wang SG, Ou X, Chen WS, Chen SZ, Guo PL, Chen M, Guo Y, Tang XP, Li LH. Clinical epidemiology and outcome of HIV-associated talaromycosis in Guangdong, China, during 2011-2017. HIV Med 2020; 21:729-738. [PMID: 33369035 PMCID: PMC7978497 DOI: 10.1111/hiv.13024] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2020] [Indexed: 01/25/2023]
Abstract
OBJECTIVES Talaromycosis is an invasive mycosis endemic to Southeast Asia. This study aimed to investigate the epidemiology, clinical features and prognostic factors of HIV-associated talaromycosis in Guangdong, China. METHODS We retrospectively evaluated HIV patients hospitalized with histopathology- or culture-confirmed talaromycosis between 2011 and 2017. Factors associated with poor prognosis were identified using logistic regression. RESULTS Overall, 1079 patients with HIV-associated talaromycosis were evaluated. Both the number and prevalence of talaromycosis among HIV admissions increased from 125 and 15.7% in 2011 to 253 and 18.8% in 2017, respectively, reflecting the increase in HIV admissions. Annual admissions peaked during the rainy season between March and August. Common clinical manifestations included fever (85.6%), peripheral lymphadenopathy (72.3%), respiratory symptoms (60.8%), weight loss (49.8%), skin lesions (44.5%) and gastrointestinal symptoms (44.3%). Common laboratory abnormalities were hypoalbuminaemia (98.6%), anaemia (95.6%), elevated aspartate aminotransferase level (AST) (76.9%), elevated alkaline phosphatase level (55.8%) and thrombocytopenia (53.7%). The median CD4 count was 9 cells/μL. Talaromyces marneffei was isolated from blood and bone marrow cultures of 66.6% and 74.5% of patients, respectively. The rate increased to 86.6% when both cultures were performed concurrently. At discharge, 14% of patients showed worsening conditions or died. Leucocytosis, thrombocytopenia, elevated AST, total bilirubin, creatinine and azole monotherapy independently predicted poor prognosis. CONCLUSIONS The incidence of HIV-associated talaromycosis has increased in Guangdong with the high HIV burden in China. Skin lesions were seen in less than half of patients. Induction therapy with azole alone is associated with higher mortality. Findings from this study should help to improve treatment of the disease.
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Affiliation(s)
- R S Ying
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - T Le
- Division of Infectious Diseases and International Health, Duke University School of Medicine, Durham, NC, USA
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
| | - W P Cai
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Y R Li
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - C B Luo
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Y Cao
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - C Y Wen
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - S G Wang
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - X Ou
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - W S Chen
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - S Z Chen
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - P L Guo
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - M Chen
- Hospital-Acquired Infection Control Department, Bijie Third People's Hospital, Bijie, China
| | - Y Guo
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - X P Tang
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - L H Li
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
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27
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Gan Y, Du Q, Liu W, Li J, Jiang X, Li X, Ou X, Yue H, Zhu H, Zhong Q, Luo D, Liang Q, Xie Y, Zhang Q, Li G, Shang Y. Value Of Radiotherapy After Minimally Invasive Surgery In Patients With Stage IA1-IIA1 Cervical Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Ou X, Shen C, He X, Hu C. Germline Mutation Landscape of DNA Damage Repair Genes in Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Ou X, Xiao Z, Zhang JF, Wang C, Wang D, Zhang B, Wu Y. Enhancing the Rapid Na +-Storage Performance via Electron/Ion Bridges through GeS 2/Graphene Heterojunction. ACS Nano 2020; 14:13952-13963. [PMID: 32941006 DOI: 10.1021/acsnano.0c06371] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hybridizing carbonous matrix into metal sulfide is confirmed as an effective strategy to enhance electrode conductance and structure stability. However, a comprehensive understanding of the interface reaction mechanism between active materials and carbon substrate is still urgently needed. Based on the band energy theory, a route to enhance the rate ability for electrode is exploited on regulating interfaces of substrates/active heterojunction. Herein, the highly stable Na+-storage performance of GeS2/3DG is delicately designed, where the hierarchical structure is enabled by uniformly overcoating GeS2 nanograins with graphene matrix. Different from the widespread doping route of active materials for fast ion transfer, we focus on the effects of interface regulation on the high-rate Na- ion-storage performance of substrate/active materials. Here, a well-designed interface of the C-Ge bond at the heterointerface induced by hierarchical GeS2/graphene heterojunction is pioneeringly explored, which can result in a fast electron transfer by reducing electron gathering polarization. More importantly, defects in graphene can alleviate the polarization aroused by ion concentration, which not only offers anchoring/doping sites for C-Ge bond but also provides extra ion channels for Na-ion transportation into GeS2. This interface regulation of constructing metal-carbon bonds will shine light on the reaction kinetics and interface stability and contribute to the fundamental understanding of interface reaction mechanisms for metal sulfide anode materials.
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Affiliation(s)
- Xing Ou
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, Hunan 410083, P.R. China
| | - Zhiming Xiao
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, Hunan 410083, P.R. China
| | - Jia-Feng Zhang
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, Hunan 410083, P.R. China
| | - Chunhui Wang
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, Hunan 410083, P.R. China
| | - Dong Wang
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Bao Zhang
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, Hunan 410083, P.R. China
| | - Yingpeng Wu
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
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30
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Graham RM, Jiang L, McCorkle G, Bellando BJ, Sorensen ST, Glasier CM, Ramakrishnaiah RH, Rowell AC, Coker JL, Ou X. Maternal Anxiety and Depression during Late Pregnancy and Newborn Brain White Matter Development. AJNR Am J Neuroradiol 2020; 41:1908-1915. [PMID: 32912873 DOI: 10.3174/ajnr.a6759] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/06/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND PURPOSE Anxiety and depression during pregnancy have been associated with an increased risk of adverse neurodevelopmental outcomes in offspring. We aimed to study the in utero effects of maternal anxiety and depression on early brain development. MATERIALS AND METHODS Pregnant women were recruited at ∼36 weeks of gestation for this prospective study. They were assessed for anxiety symptoms by the State-Trait Anxiety Inventory and for depression symptoms by the Beck Depression Inventory, 2nd Edition. After delivery, infant underwent an MR imaging examination of the brain without sedation, including DTI, for evaluation of white matter (WM) development. Infant fractional anisotropy values, a putative marker of WM integrity, were correlated with the mothers' State-Trait Anxiety Inventory and Beck Depression Inventory scores by using both tract-based spatial statistics and ROI methods. RESULTS Thirty-four infants were included in this study. Both maternal State-Anxiety and Trait-Anxiety scores negatively correlated (P < .05, corrected) with fractional anisotropy values in widespread brain WM regions; Beck Depression Inventory scores also negatively correlated (P < .05) with fractional anisotropy values in one cluster in the brain. Further ROI analyses confirmed significant negative correlations between average fractional anisotropy values in ROIs including left and right prefrontal WM, left and right middle frontal gyrus WM, and the fornix, and State-Anxiety (R values, -0.47 to -0.67; P values, .008 to <.001), Trait-Anxiety (R, -0.37 to -0.59; P, .04 to <.001), and Beck Depression Inventory (R values, -0.36 to -0.55; P, .05 to .002) scores. CONCLUSIONS Higher maternal anxiety and depression symptom scores during late pregnancy were associated with lower estimated infant brain WM development, which indicated in utero influences of maternal mental health during pregnancy on the developing brain.
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Affiliation(s)
- R M Graham
- From the Departments of Radiology (R.M.G., L.J., C.M.G., R.H.R., A.C.R., X.O.)
| | - L Jiang
- From the Departments of Radiology (R.M.G., L.J., C.M.G., R.H.R., A.C.R., X.O.)
| | - G McCorkle
- Arkansas Children's Nutrition Center (G.M., X.O.), Little Rock, Arkansas
| | - B J Bellando
- Pediatrics (B.J.B., S.T.S., C.M.G., R.H.R., X.O.)
| | - S T Sorensen
- Pediatrics (B.J.B., S.T.S., C.M.G., R.H.R., X.O.)
| | - C M Glasier
- From the Departments of Radiology (R.M.G., L.J., C.M.G., R.H.R., A.C.R., X.O.).,Pediatrics (B.J.B., S.T.S., C.M.G., R.H.R., X.O.)
| | - R H Ramakrishnaiah
- From the Departments of Radiology (R.M.G., L.J., C.M.G., R.H.R., A.C.R., X.O.).,Pediatrics (B.J.B., S.T.S., C.M.G., R.H.R., X.O.)
| | - A C Rowell
- From the Departments of Radiology (R.M.G., L.J., C.M.G., R.H.R., A.C.R., X.O.)
| | - J L Coker
- Psychiatry, and Obstetrics and Gynecology (J.L.C.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - X Ou
- From the Departments of Radiology (R.M.G., L.J., C.M.G., R.H.R., A.C.R., X.O.) .,Pediatrics (B.J.B., S.T.S., C.M.G., R.H.R., X.O.).,Arkansas Children's Nutrition Center (G.M., X.O.), Little Rock, Arkansas.,Arkansas Children's Research Institute (X.O.), Little Rock, Arkansas
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31
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Li T, Badger TM, Bellando BJ, Sorensen ST, Lou X, Ou X. Brain Cortical Structure and Executive Function in Children May Be Influenced by Parental Choices of Infant Diets. AJNR Am J Neuroradiol 2020; 41:1302-1308. [PMID: 32527846 DOI: 10.3174/ajnr.a6601] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 04/17/2020] [Indexed: 01/25/2023]
Abstract
BACKGROUND AND PURPOSE While it is known that breastfeeding promotes healthy brain development in children, the potential effects of formulas substantially differing in composition (ie, milk-based versus soy-based) during infancy on brain development are unclear. MATERIALS AND METHODS Seventy-one 8-year-old children who were predominantly breastfed, milk formula fed, or soy formula fed during infancy were recruited for an MR imaging examination of the brain and a Behavior Rating Inventory of Executive Function assessment (completed via a questionnaire to the parents). Brain cortical features measured from MR imaging such as cortical thickness and surface area were extracted and compared among groups and correlated with Behavior Rating Inventory of Executive Function test scores. RESULTS Clusters in the frontal and occipital lobes showed significant differences (cluster-wise P ≤ .05, corrected for multiple comparisons) in cortical thickness or surface area among the 3 diet groups. The effects were more prominent for boys, particularly for comparison of the milk formula fed versus soy formula fed boys. Assessments of executive function and behavior showed significantly lower Behavior Rating Inventory of Executive Function test scores in soy formula fed versus milk formula fed groups, which were mostly attributed to differences in boys. There were no differences between milk formula fed and breastfed groups for either sex. Mean cortical thickness for several of the clusters in the brain showing infant diet-associated effects significantly correlated with Behavior Rating Inventory of Executive Function scores. CONCLUSIONS Choices of infant diets (ie, breastfed, milk formula fed, soy formula fed) may have long-term and sex-specific effects on the cortical development and executive function and behavior of children's brains.
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Affiliation(s)
- T Li
- From the Departments of Radiology (T.L., X.O.)
- Arkansas Children's Nutrition Center (T.L., T.M.B., B.J.B., S.T.S., X.O.), Little Rock, Arkansas
- Department of Information Sciences (T.L., X.O.), University of Arkansas at Little Rock, Little Rock, Arkansas
| | - T M Badger
- Pediatrics (T.M.B., B.J.B., S.T.S., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center (T.L., T.M.B., B.J.B., S.T.S., X.O.), Little Rock, Arkansas
| | - B J Bellando
- Pediatrics (T.M.B., B.J.B., S.T.S., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center (T.L., T.M.B., B.J.B., S.T.S., X.O.), Little Rock, Arkansas
| | - S T Sorensen
- Pediatrics (T.M.B., B.J.B., S.T.S., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center (T.L., T.M.B., B.J.B., S.T.S., X.O.), Little Rock, Arkansas
| | - X Lou
- Department of Biostatistics (X.L., X.O.), University of Florida, Gainesville, Florida
| | - X Ou
- From the Departments of Radiology (T.L., X.O.)
- Pediatrics (T.M.B., B.J.B., S.T.S., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center (T.L., T.M.B., B.J.B., S.T.S., X.O.), Little Rock, Arkansas
- Department of Information Sciences (T.L., X.O.), University of Arkansas at Little Rock, Little Rock, Arkansas
- Department of Biostatistics (X.L., X.O.), University of Florida, Gainesville, Florida
- Arkansas Children's Research Institute (X.O.), Little Rock, Arkansas
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Wen CY, Xie ZW, Li YP, Deng XL, Chen XT, Cao Y, Ou X, Lin WY, Li F, Cai WP, Li LH. [Real-world efficacy and safety of lopinavir/ritonavir and arbidol in treating with COVID-19 : an observational cohort study]. Zhonghua Nei Ke Za Zhi 2020; 59:605-609. [PMID: 32388937 DOI: 10.3760/cma.j.cn112138-20200227-00147] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Objective: To evaluate the efficacy and safety of lopinavir/ritonavir (LPV/r) and arbidol in the treatment of COVID-19 in the real world. Methods: The clinical data of 178 patients diagnosed with COVID-19 admitted to Guangzhou Eighth People's Hospital were retrospectively analyzed from January 21 to February 9, 2020. According to the patient's antiviral treatment regimen, 178 patients were divided into 4 groups including LPV/r group (59 patients), arbidol group (36 patients), combination therapy with LPV/r plus arbidol group (25 patients) and the conventional treatment group without any antiviral drugs (58 patients). The main observation end points of the study was the negative conversion time of nucleic acid of the novel coronavirus (2019-nCoV) in pharyngeal swab. Results: The baseline of 4 groups before treatment was consistent and comparable. The negative conversion time of nucleic acid of the 2019-nCoV in pharyngeal swab was (10.20 ± 3.49), (10.11 ± 4.68), (10.86 ± 4.74), (8.44 ± 3.51) days separately in the LPV/r group, the arbidol group, the combination therapy group, and the conventional treatment group without significant difference (F = 2.556, P = 0.058). There was also no significant difference in the rate of negative conversion rate of 2019-nCoV nucleic acid, the improvement ration in clinical symptoms, and the improvement ration of pulmonary infection in the lung CT imaging (P> 0.05). However, a statistically significant difference was found in the proportion of deterioration changing from mild/moderate to severe/critical type at day 7 (χ(2) = 9.311, P = 0.017) as follows: the combination therapy group (24.0%, 6/25), the arbidol group ( 16.7%, 6/36), LPV/r group (5.4%, 3/56) and conventional treatment group (5.2%, 3/58). Moreover, the frequency of adverse reactions in the three groups receiving antiviral drugs was significantly higher than that in the conventional treatment group (χ(2) = 14.875, P = 0.002). Conclusions: No evidences could prove that LPV/r and arbidol could shorten the negative conversion time of novel coronavirus nucleic acid in pharyngeal swab nor improve the symptoms of patients. Furthermore, the combination usage of LPV/r and arbidol may not benefit for improving the disease. Noteworthy, the adverse reactions of the antiviral drugs should be paid careful attention during the treatment.
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Affiliation(s)
- C Y Wen
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - Z W Xie
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - Y P Li
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - X L Deng
- Intensive Care Unit, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - X T Chen
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - Y Cao
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - X Ou
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - W Y Lin
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - F Li
- Institute of Infectious Diseases, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - W P Cai
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - L H Li
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
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Wang C, Zhang B, Xia H, Cao L, Luo B, Fan X, Zhang J, Ou X. Composition and Architecture Design of Double-Shelled Co 0.85 Se 1- x S x @Carbon/Graphene Hollow Polyhedron with Superior Alkali (Li, Na, K)-Ion Storage. Small 2020; 16:e1905853. [PMID: 32249535 DOI: 10.1002/smll.201905853] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 12/19/2019] [Accepted: 03/04/2020] [Indexed: 05/12/2023]
Abstract
The exploration of materials with reversible and stable electrochemical performance is crucial in energy storage, which can (de) intercalate all the alkali-metal ions (Li+ , Na+ , and K+ ). Although transition-metal chalcogenides are investigated continually, the design and controllable preparation of hierarchical nanostructure and subtle composite withstable properties are still great challenges. Herein, component-optimal Co0.85 Se1- x Sx nanoparticles are fabricated by in situ sulfidization of metal organic framework, which are wrapped by the S-doped graphene, constructing a hollow polyhedron framework with double carbon shells (CoSSe@C/G). Benefiting from the synergistic effect of composition regulation and architecture design by S-substitution, the electrochemical kinetic is enhanced by the boosted electrochemistry-active sites, and the volume variation is mitigated by the designed structure, resulting in the advanced alkali-ion storage performance. Thus, it delivers an outstanding reversible capacity of 636.2 mAh g-1 at 2 A g-1 after 1400 cycles for Li-ion batteries. Remarkably, satisfactory initial charge capacities of 548.1 and 532.9 mAh g-1 at 0.1 A g-1 can be obtained for Na-ion and K-ion batteries, respectively. The prominent performance combined with the theory calculation confirms that the synergistic strategy can improve the alkali-ion transportation and structure stability, providing an instructive guide for designing high-performance anode materials for universal alkali-ion storage.
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Affiliation(s)
- Chunhui Wang
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Bao Zhang
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Haifeng Xia
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Liang Cao
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Bi Luo
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Xinming Fan
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Jiafeng Zhang
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Xing Ou
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
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Cao L, Gao X, Zhang B, Ou X, Zhang J, Luo WB. Bimetallic Sulfide Sb 2S 3@FeS 2 Hollow Nanorods as High-Performance Anode Materials for Sodium-Ion Batteries. ACS Nano 2020; 14:3610-3620. [PMID: 32134632 DOI: 10.1021/acsnano.0c00020] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Constructing a heterojunction and introducing an interfacial interaction by designing ideal structures have the inherent advantages of optimizing electronic structures and macroscopic mechanical properties. An exquisite hierarchical heterogeneous structure of bimetal sulfide Sb2S3@FeS2 hollow nanorods embedded into a nitrogen-doped carbon matrix is fabricated by a concise two-step solvothermal method. The FeS2 interlayer expands in situ grow on the interface of hollow Sb2S3 nanorods within the nitrogen-doped graphene matrix, forming a delicate heterostructure. Such a well-designed architecture affords rapid Na+ diffusion and improves charge transfer at the heterointerfaces. Meanwhile, the strongly synergistic coupling interaction among the interior Sb2S3, interlayer FeS2, and external nitrogen-doped carbon matrix creates a stable nanostructure, which extremely accelerates the electronic/ion transport and effectively alleviates the volume expansion upon long cyclic performance. As a result, the composite, as an anode material for sodium-ion batteries, exhibits a superior rate capability of 537.9 mAh g-1 at 10 A g-1 and excellent cyclic stability with 85.7% capacity retention after 1000 cycles at 5 A g-1. Based on the DFT calculation, the existing constructing heterojunction in this composite can not only optimize the electronic structure to enhance the conductivity but also favor the Na2S adsorption energy to accelerate the reaction kinetics. The outstanding electrochemical performance sheds light on the strategy by the rational design of hierarchical heterogeneous nanostructures for energy storage applications.
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Affiliation(s)
- Liang Cao
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
| | - Xuanwen Gao
- Institute for Energy Electrochemistry and Urban Mines Metallurgy, School of Metallurgy, Northeastern University, No. 11 Lane 3, Wenhua Road, Shenyang, Liaoning 110819, People's Republic of China
| | - Bao Zhang
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
| | - Xing Ou
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
| | - Jiafeng Zhang
- School of Metallurgy and Environment, Central South University, No. 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
| | - Wen-Bin Luo
- Institute for Energy Electrochemistry and Urban Mines Metallurgy, School of Metallurgy, Northeastern University, No. 11 Lane 3, Wenhua Road, Shenyang, Liaoning 110819, People's Republic of China
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He S, Wen Q, O’Shea C, Mu-u-min R, Tan X, Ou X, Camelliti P, Pavlovic P, Lei M. A new method of transverse cardiac slicing and optical mapping of murine heart. J Mol Cell Cardiol 2020. [DOI: 10.1016/j.yjmcc.2019.11.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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36
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Ming L, Zhang B, Wang C, Ou X, Zhang J, Yang Z. La-doping and carbon-coating collaboratively enhance the cycling and rate properties of LiFeBO3 for Li-ion battery. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137090] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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37
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Han JY, Sequist L, Ahn MJ, Cho B, Yu H, Kim SW, Yang JH, Lee J, Su WC, Kowalski D, Orlov S, Cantarini M, Verheijen R, Mellemgaard A, Frewer P, Ou X, Oxnard G. TATTON expansion cohorts: A phase Ib study of osimertinib plus savolitinib in patients (pts) with EGFR-mutant, MET-positive NSCLC following disease progression on a prior EGFR-TKI. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz446.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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38
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Ou X, Wang G, Shen C, He X, Hu C. Whole-Exome Sequencing Identified Multiple Germline Mutations of DNA Repair Pathway in Patients with and without a Family History of Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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He S, Wen Q, O’Shea C, Mu-u-min R, Kou K, Grassam-Rowe A, Liu Y, Fan Z, Tan X, Ou X, Camelliti P, Pavlovic D, Lei M. A Protocol for Transverse Cardiac Slicing and Optical Mapping in Murine Heart. Front Physiol 2019; 10:755. [PMID: 31293436 PMCID: PMC6603341 DOI: 10.3389/fphys.2019.00755] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 05/31/2019] [Indexed: 01/27/2023] Open
Abstract
Thin living tissue slices have recently emerged as a new tissue model for cardiac electrophysiological research. Slices can be produced from human cardiac tissue, in addition to small and large mammalian hearts, representing a powerful in vitro model system for preclinical and translational heart research. In the present protocol, we describe a detailed mouse heart transverse slicing and optical imaging methodology. The use of this technology for high-throughput optical imaging allows study of electrophysiology of murine hearts in an organotypic pseudo two-dimensional model. The slices are cut at right angles to the long axis of the heart, permitting robust interrogation of transmembrane potential (Vm) and calcium transients (CaT) throughout the entire heart with exceptional regional precision. This approach enables the use of a series of slices prepared from the ventricles to measure Vm and CaT with high temporal and spatial resolution, allowing (i) comparison of successive slices which form a stack representing the original geometry of the heart; (ii) profiling of transmural and regional gradients in Vm and CaT in the ventricle; (iii) characterization of transmural and regional profiles of action potential and CaT alternans under stress (e.g., high frequency pacing or β-adrenergic stimulation) or pathological conditions (e.g., hypertrophy). Thus, the protocol described here provides a powerful platform for innovative research on electrical and calcium handling heterogeneity within the heart. It can be also combined with optogenetic technology to carry out optical stimulation; aiding studies of cellular Vm and CaT in a cell type specific manner.
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Affiliation(s)
- S. He
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Q. Wen
- Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - C. O’Shea
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
| | - R. Mu-u-min
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom
| | - K. Kou
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - A. Grassam-Rowe
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom
| | - Y. Liu
- Department of Cardiovascular Medicine, Southwest Medical University, Luzhou, China
| | - Z. Fan
- Department of Cardiovascular Medicine, Southwest Medical University, Luzhou, China
| | - X. Tan
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - X. Ou
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - P. Camelliti
- School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
| | - D. Pavlovic
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
| | - M. Lei
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom
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40
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Zhang J, Zhang J, Ou X, Wang C, Peng C, Zhang B. Enhancing High-Voltage Performance of Ni-Rich Cathode by Surface Modification of Self-Assembled NASICON Fast Ionic Conductor LiZr 2(PO 4) 3. ACS Appl Mater Interfaces 2019; 11:15507-15516. [PMID: 30973700 DOI: 10.1021/acsami.9b00389] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Coating methodology is commonly employed in the enhancement of Ni-rich cathodes for Li-ion batteries as an efficient approach, while its strategy and effect are still great challenges to achieve success in surface modifications for comprehensive electrochemical properties. In this work, the surface of Ni-rich cathode LiNi0.82Co0.15Al0.03O2 (NCA) is modified by intimately coating NASICON-type solid electrolyte LiZr2(PO4)3 (LZP) via a facile approach involving electrostatic attraction. With well-designed architecture and a uniform NASICON-type LZP nanolayer wrapping over the NCA microsphere, the entire electrode demonstrates exceptional Li+ diffusion and conductivity and suppresses the side reaction between electrolyte and electroactive NCA, stabilizing the phase interface with less Li+/Ni2+ cation mixing. As a result, the NCA@LZP can deliver a high reversible capacity of 182 mAh g-1 at 1C in 2.7-4.3 V, maintaining the capacity retention of 84.6% after 100 cycles. More importantly, the structure stability of NCA is enhanced substantially by surface modification of LZP at high cutoff voltage. It achieves a reversible capacity of 204 mAh g-1 and keeps 100.4 mAh g-1 after 500 cycles at 1C in the potential range of 2.7-4.5 V. This effective strategy of using NASICON fast ionic conductor like LZP as a coating layer may provide a new insight to modify the surface of Ni-rich electrode, improving the rate capability and cyclic performance under high voltage.
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41
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Cao L, Zhang B, Ou X, Wang C, Peng C, Zhang J. Interlayer Expanded SnS
2
Anchored on Nitrogen‐Doped Graphene Nanosheets with Enhanced Potassium Storage. ChemElectroChem 2019. [DOI: 10.1002/celc.201900346] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Liang Cao
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Bao Zhang
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Xing Ou
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Chunhui Wang
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Chunli Peng
- School of Energy Science and EngineeringCentral South University Changsha 410083 PR China
| | - Jiafeng Zhang
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
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42
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Li H, Zhang B, Ou X, Zhou Q, Wang C, Peng C, Zhang J. Cover Feature: Core‐Shell Structure of SnO
2
@C/PEDOT : PSS Microspheres with Dual Protection Layers for Enhanced Lithium Storage Performance (ChemElectroChem 8/2019). ChemElectroChem 2019. [DOI: 10.1002/celc.201900350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hui Li
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Bao Zhang
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Xing Ou
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Qijie Zhou
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Chunhui Wang
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Chunli Peng
- School of Energy Science and EngineeringCentral South University Changsha 410083 PR China
| | - Jiafeng Zhang
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
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43
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Ou X, Cao L, Liang X, Zheng F, Zheng HS, Yang X, Wang JH, Yang C, Liu M. Fabrication of SnS 2/Mn 2SnS 4/Carbon Heterostructures for Sodium-Ion Batteries with High Initial Coulombic Efficiency and Cycling Stability. ACS Nano 2019; 13:3666-3676. [PMID: 30785716 DOI: 10.1021/acsnano.9b00375] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
SnS2 has been extensive studied as an anode material for sodium storage owing to its high theoretical specific capacity, whereas the unsatisfied initial Coulombic efficiency (ICE) caused by the partial irreversible conversion reaction during the charge/discharge process is one of the critical issues that hamper its practical applications. Hence, heterostructured SnS2/Mn2SnS4/carbon nanoboxes (SMS/C NBs) have been developed by a facial wet-chemical method and utilized as the anode material of sodium ion batteries. SMS/C NBs can deliver an initial capacity of 841.2 mAh g-1 with high ICE of 90.8%, excellent rate capability (752.3, 604.7, 570.1, 546.9, 519.7, and 488.7 mAh g-1 at the current rate of 0.1, 0.5, 1.0, 2.0, 5.0, and 10.0 A g-1, respectively), and long cycling stability (522.5 mAh g-1 at 5.0 A g-1 after 500 cycles). The existence of SnS2/Mn2SnS4 heterojunctions can effectively stabilize the reaction products Sn and Na2S, greatly prevent the coarsening of nanosized Sn0, and enhance reversible conversion--alloying reaction, which play a key role in improving the ICE and extending the cycling performance. Moreover, the heterostructured SMS coupled with the interacting carbon network provides efficient channels for electrons and Na+ diffusion, resulting in an excellent rate performance.
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Affiliation(s)
- Xing Ou
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy , South China University of Technology , Guangzhou 510006 , People's Republic of China
| | - Liang Cao
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy , South China University of Technology , Guangzhou 510006 , People's Republic of China
| | - Xinghui Liang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy , South China University of Technology , Guangzhou 510006 , People's Republic of China
| | - Fenghua Zheng
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy , South China University of Technology , Guangzhou 510006 , People's Republic of China
| | - Hong-Sheng Zheng
- Department of Chemistry , National Taiwan Normal University , Taipei , 11677 , Taiwan
| | - Xianfeng Yang
- Analytical and Testing Center , South China University of Technology , Guangzhou 510641 , People's Republic of China
| | - Jeng-Han Wang
- Department of Chemistry , National Taiwan Normal University , Taipei , 11677 , Taiwan
| | - Chenghao Yang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy , South China University of Technology , Guangzhou 510006 , People's Republic of China
| | - Meilin Liu
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy , South China University of Technology , Guangzhou 510006 , People's Republic of China
- School of Materials Science & Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
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Cao L, Zhang B, Ou X, Wang C, Peng C, Zhang J. Synergistical Coupling Interconnected ZnS/SnS 2 Nanoboxes with Polypyrrole-Derived N/S Dual-Doped Carbon for Boosting High-Performance Sodium Storage. Small 2019; 15:e1804861. [PMID: 30675762 DOI: 10.1002/smll.201804861] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/02/2019] [Indexed: 05/26/2023]
Abstract
Metal sulfides possess tremendous potentials owing to their high specific capacity for sodium storage. However, the huge volume expansion, accompanied with structural collapse and unsatisfied electric conductivity upon continuous cycling, always lead to inferior rate capability and severe cycling fading. In this work, binary metal sulfide (ZnS/SnS2 ) nanoboxes confined in N/S dual-doped carbon shell (ZSS@NSC) are fabricated through a facile co-precipitation method involving the wrapping of polypyrrole, and subsequent in situ sulfidation process. Such a well-designed heterogeneity between ZnS and SnS2 provides rapid Na+ insertion and enhanced charge transport by creating an electric field at the heterointerface. More significantly, the formation of polypyrrole-derived N/S dual-doped carbon is synergistically coupled with the ZnS/SnS2 to create a unique and robust architecture, further strengthening the interconnect function at the heterointerface, which improves electric/ion transfer and mitigates the volume variation during the long-term cycling process. Herein, this as-prepared ZSS@NSC exhibits satisfied specific capacity, excellent rate property, and superior cyclic stability (a reversible capacity of 456.2 mAh g-1 with excellent capacity retention of 97.2% after 700 stable cycles at ultrahigh rate of 5 A g-1 ). The boosted Na-storage properties demonstrate that the optimized strategy of structure-engineering has a broad prospect to promote energy storage applications.
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Affiliation(s)
- Liang Cao
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Bao Zhang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Xing Ou
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Chunhui Wang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Chunli Peng
- School of Energy Science and Engineering, Central South University, Changsha, 410083, P. R. China
| | - Jiafeng Zhang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
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Ou X, Zhang J, Wang J, Pang F, Ma X. Ability of models based on clinical parameters and radiomic features from 18F-FDG PET/CT to differentiate breast carcinoma from breast lymphoma using machine-learning approach. Breast 2019. [DOI: 10.1016/s0960-9776(19)30201-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Li H, Zhang B, Ou X, Zhou Q, Wang C, Peng C, Zhang J. Core‐Shell Structure of SnO
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@C/PEDOT : PSS Microspheres with Dual Protection Layers for Enhanced Lithium Storage Performance. ChemElectroChem 2019. [DOI: 10.1002/celc.201801774] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hui Li
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Bao Zhang
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Xing Ou
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Qijie Zhou
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Chunhui Wang
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
| | - Chunli Peng
- School of Energy Science and EngineeringCentral South University Changsha 410083 PR China
| | - Jiafeng Zhang
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 PR China
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Chen G, Zhong W, Li Y, Deng Q, Ou X, Pan Q, Wang X, Xiong X, Yang C, Liu M. Rational Design of TiO-TiO 2 Heterostructure/Polypyrrole as a Multifunctional Sulfur Host for Advanced Lithium-Sulfur Batteries. ACS Appl Mater Interfaces 2019; 11:5055-5063. [PMID: 30656928 DOI: 10.1021/acsami.8b19501] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Despite outstanding theoretical energy density (2600 Wh kg-1) and low cost of lithium-sulfur (Li-S) batteries, their practical application is seriously hindered by inferior cycle performance and low Coulombic efficiency due to the "shuttle effect" of lithium polysulfides (LiPSs). Herein, we proposed a strategy that combines TiO-TiO2 heterostructure materials (H-TiO x, x = 1, 2) and conductive polypyrrole (PPy) to form a multifunctional sulfur host. Initially, the TiO-TiO2 heterostructure can enhance the redox reaction kinetics of sulfur species and improve the conductivity of sulfur cathode together with the PPy coating layer. Moreover, the defect-abundant H-TiO x matrices can trap LiPSs by the formation of Ti-S bond via the Lewis acid-base interaction. Furthermore, the PPy coating can physically hinder the diffusion of LiPSs, as well as chemically adsorb LiPSs by the polar-polar mechanism. Benefiting from the synergistic effect of H-TiO x and PPy layer, the novel cathode delivered high specific capacities at different current rates (1130, 990, 932, 862, and 726 mAh g-1 at 0.1, 0.2, 0.3, 0.5, and 1C, respectively) and an ultralow capacity decay of 0.0406% per cycle after 1000 cycles at 1C. This work can not only indicate effectiveness of employing H-TiO x materials to realize the LiPSs immobilization but also shed light on the feasibility of combining different materials to achieve the multifunctional sulfur hosts for advanced Li-S batteries.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Meilin Liu
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
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Deoni SC, Adams SH, Li X, Badger TM, Pivik RT, Glasier CM, Ramakrishnaiah RH, Rowell AC, Ou X. Cesarean Delivery Impacts Infant Brain Development. AJNR Am J Neuroradiol 2019; 40:169-177. [PMID: 30467219 DOI: 10.3174/ajnr.a5887] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 10/06/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND PURPOSE The cesarean delivery rate has increased globally in the past few decades. Neurodevelopmental outcomes associated with cesarean delivery are still unclear. This study investigated whether cesarean delivery has any effect on the brain development of offspring. MATERIALS AND METHODS A total of 306 healthy children were studied retrospectively. We included 3 cohorts: 2-week-old neonates (cohort 1, n = 32/11 for vaginal delivery/cesarean delivery) and 8-year-old children (cohort 2, n = 37/23 for vaginal delivery/cesarean delivery) studied at Arkansas Children's Hospital, and a longitudinal cohort of 3-month to 5-year-old children (cohort 3, n = 164/39 for vaginal delivery/cesarean delivery) studied independently at Brown University. Diffusion tensor imaging, myelin water fraction imaging, voxel-based morphometry, and/or resting-state fMRI data were analyzed to evaluate white matter integrity, myelination, gray matter volume, and/or functional connectivity, respectively. RESULTS While not all MR imaging techniques were shared across the institutions/cohorts, post hoc analyses showed similar results of potential effects of cesarean delivery. The cesarean delivery group in cohort 1 showed significantly lower white matter development in widespread brain regions and significantly lower functional connectivity in the brain default mode network, controlled for a number of potential confounders. No group differences were found in cohort 2 in white matter integrity or gray matter volume. Cohort 3 had significantly different trajectories of white matter myelination between groups, with those born by cesarean delivery having reduced myelin in infancy but normalizing with age. CONCLUSIONS Cesarean delivery may influence infant brain development. The impact may be transient because similar effects were not observed in older children. Further prospective and longitudinal studies may be needed to confirm these novel findings.
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Affiliation(s)
- S C Deoni
- School of Engineering (S.C.D.), Brown University, Providence, Rhode Island
| | - S H Adams
- From the Arkansas Children's Nutrition Center (S.H.A., T.M.B., R.T.P., X.O.), Little Rock, Arkansas
- Pediatrics (S.H.A., T.M.B., R.T.P., C.M.G., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - X Li
- Departments of Radiology (X.L., C.M.G., R.H.R., A.C.R., X.O.)
| | - T M Badger
- From the Arkansas Children's Nutrition Center (S.H.A., T.M.B., R.T.P., X.O.), Little Rock, Arkansas
- Pediatrics (S.H.A., T.M.B., R.T.P., C.M.G., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - R T Pivik
- From the Arkansas Children's Nutrition Center (S.H.A., T.M.B., R.T.P., X.O.), Little Rock, Arkansas
- Pediatrics (S.H.A., T.M.B., R.T.P., C.M.G., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - C M Glasier
- Departments of Radiology (X.L., C.M.G., R.H.R., A.C.R., X.O.)
- Pediatrics (S.H.A., T.M.B., R.T.P., C.M.G., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Research Institute (C.M.G., R.H.R., A.C.R., X.O.), Little Rock, Arkansas
| | - R H Ramakrishnaiah
- Departments of Radiology (X.L., C.M.G., R.H.R., A.C.R., X.O.)
- Arkansas Children's Research Institute (C.M.G., R.H.R., A.C.R., X.O.), Little Rock, Arkansas
| | - A C Rowell
- Departments of Radiology (X.L., C.M.G., R.H.R., A.C.R., X.O.)
- Arkansas Children's Research Institute (C.M.G., R.H.R., A.C.R., X.O.), Little Rock, Arkansas
| | - X Ou
- From the Arkansas Children's Nutrition Center (S.H.A., T.M.B., R.T.P., X.O.), Little Rock, Arkansas
- Departments of Radiology (X.L., C.M.G., R.H.R., A.C.R., X.O.)
- Pediatrics (S.H.A., T.M.B., R.T.P., C.M.G., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Research Institute (C.M.G., R.H.R., A.C.R., X.O.), Little Rock, Arkansas
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Cao Y, Zhang B, Ou X, Li Y, Wang C, Cao L, Peng C, Zhang J. Facile synthesis of a molybdenum phosphide@carbon nanocomposite as an advanced anode material for sodium-ion batteries. NEW J CHEM 2019. [DOI: 10.1039/c9nj00884e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The MoP@C nanocomposite was successfully fabricated via a facile sol–gel approach, which demonstrated excellent electrochemical properties as a sodium-ion battery anode.
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Affiliation(s)
- Yang Cao
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
- Medical Engineering Center
| | - Bao Zhang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
| | - Xing Ou
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
| | - Yunsha Li
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
| | - Chunhui Wang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
| | - Liang Cao
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
| | - Chunli Peng
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
| | - Jiafeng Zhang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
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Wang C, Zhou C, Zhang B, Ou X, Cao L, Peng C, Zhang J. Room-temperature solution synthesis of ZnMn2O4 nanoparticles for advanced electrochemical lithium storage. RSC Adv 2019; 9:9075-9078. [PMID: 35517668 PMCID: PMC9062015 DOI: 10.1039/c9ra00553f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 03/11/2019] [Indexed: 01/13/2023] Open
Abstract
Taking advantage of synergistic effects, the ternary metal oxides have attracted tremendous interest. Herein, ZnMn2O4 nano-particles have been fabricated via a facile one-step approach at room temperature, that of simply mixing ZnO and MnO in KOH aqueous solution without templates. When used as an anode for lithium ion batteries, it delivers the excellent structure stability (1028.9 mA h g−1 at 1.0 A g−1 after 400 cycles). Surprisingly, the low-cost and eco-friendly route provides a novel strategy to synthesize the mixed transition metal oxide electrodes with readily scaled-up production. ZnMn2O4 nanoparticles were fabricated via a low-cost and ecofriendly one-step approach at room temperature. The particles exhibited excellent structure stability and superior lithium storage.![]()
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Affiliation(s)
- Chunhui Wang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
| | - Chunxian Zhou
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
| | - Bao Zhang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
| | - Xing Ou
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
| | - Liang Cao
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
| | - Chunli Peng
- School of Energy Science and Engineering
- Central South University
- Changsha 410083
- PR China
| | - Jiafeng Zhang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
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