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Li R, Li J, Wang X, Jian C, Wu X, Zhong B, Chen Y. Surface design for high ion flux separator in lithium-sulfur batteries. J Colloid Interface Sci 2024; 654:13-24. [PMID: 37832231 DOI: 10.1016/j.jcis.2023.10.018] [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: 07/11/2023] [Revised: 10/03/2023] [Accepted: 10/05/2023] [Indexed: 10/15/2023]
Abstract
Addressing the shuttle effect is a critical challenge in realizing practical applications of lithium-sulfur batteries. One promising avenue refers to the surface modification of separators, transitioning them from closed to open structures. In the current investigation, a high ion flux separator was devised by means of MnO2 self-assembly onto a Porous Polypropylene (PP) separator, subsequently coupling it with biochar. The separator exhibited favorable ion and electronic conductivity. Moreover, it adeptly captured and transformed polysulfides into Li2S2/Li2S, cyclically curbing the mobility of Polysulfide lithium (LiPSs). In addition, this augmentation in the kinetic conversion of LiPSs during the electrochemical process translated into an impressive discharge specific capacity and area capacity of 939 mAh/g and 4 mAh cm-2, respectively. Moreover, this innovative design methodology provides an alternative avenue for future separator designs within lithium-sulfur batteries.
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Affiliation(s)
- Rong Li
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Jiaqi Li
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Xin Wang
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Caifeng Jian
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Xinxiang Wu
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Benhe Zhong
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Yanxiao Chen
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China.
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Li J, Wu X, Jian C, Qiao X, Wan F, Wu Z, Zhong B, Chen Y, Guo X. GO-CoNiP New Composite Material Modified Separator for Long Cycle Lithium-Sulfur Batteries. Small 2023:e2307912. [PMID: 38048540 DOI: 10.1002/smll.202307912] [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] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/28/2023] [Indexed: 12/06/2023]
Abstract
Lithium-sulfur batteries with high capacity are considered the most promising candidates for next-generation energy storage systems. Mitigating the shuttle reaction and promoting catalytic conversion within the battery are major challenges in the development of high-performance lithium-sulfur batteries. To solve these problems, a novel composite material GO-CoNiP is synthesized in this study. The material has excellent conductivity and abundant active sites to adsorb polysulfides and improve reaction kinetics within the battery. The initial capacity of the GO-CoNiP separator battery at 1 C is 889.4 mAh g-1 , and the single-cycle decay is 0.063% after 1000 cycles. In the 4 C high-rate test, the single-cycle decay is only 0.068% after 400 cycles. The initial capacity is as high as 828.2 mAh g-1 under high sulfur loading (7.3 mg cm-2 ). In addition, high and low-temperature performance tests are performed on the GO-CoNiP separator battery. The first cycle discharge reaches 810.9 mAh g-1 at a low temperature of 0 °C, and the first cycle discharge reaches 1064.8 mAh g-1 at a high temperature of 60 °C, and both can run stably for 120 cycles. In addition, in situ Raman tests are conducted to explain the adsorption of polysulfides by GO-CoNiP from a deeper level.
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Affiliation(s)
- Jiaqi Li
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Xinxiang Wu
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Caifeng Jian
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Xianyan Qiao
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Fang Wan
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Zhenguo Wu
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Benhe Zhong
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yanxiao Chen
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Xiaodong Guo
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
- Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
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Zang X, Jian C, Ingersoll S, Li H, Adams JJ, Lu Z, Ferralis N, Grossman JC. Laser-engineered heavy hydrocarbons: Old materials with new opportunities. Sci Adv 2020; 6:eaaz5231. [PMID: 32494645 PMCID: PMC7182407 DOI: 10.1126/sciadv.aaz5231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 02/07/2020] [Indexed: 05/08/2023]
Abstract
Polycyclic heavy hydrocarbons (HHs) such as coal, tar, and pitch are a family of materials with extremely rich and complex chemistry, representing a massive opportunity for their use in a range of potential applications. The present work shows that optimal selection of initial HHs based on molecular constituents is essential in tuning the material for a particular and targeted electronic application. Combining the selection of feedstock chemistry (H:C and aromatic content) and controlling variable laser treatment parameters (laser power, speed, and focus) lead to full control over the H:C ratio, sp2 concentration, and degree of graphitic stacking order of the products. The broad intertunability of these factors results from a wide distribution of carbon material crystallinity from amorphous to highly graphitic and a broad distribution of electrical conductivity up to 103 S/m.
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Affiliation(s)
- X. Zang
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - C. Jian
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Mechanical Engineering, York University, 4700 Keele Street, Toronto, ON M3J 1P3, Canada
| | - S. Ingersoll
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Huashan Li
- School of Physics, Sun Yat-sen University, Guangzhou 510275, China
| | - J. J. Adams
- Western Research Institute, Laramie, WY 82072, USA
| | - Z. Lu
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - N. Ferralis
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Corresponding author. (J.C.G.); (N.F.)
| | - J. C. Grossman
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Corresponding author. (J.C.G.); (N.F.)
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Wufuer A, Mijiti P, Abudusalamu R, Dengfeng H, Jian C, Jianhua M, Xiaoning Z. Blood pressure and collateral circulation in acute ischemic stroke. Herz 2018; 44:455-459. [DOI: 10.1007/s00059-018-4691-5] [Citation(s) in RCA: 8] [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] [Received: 06/14/2017] [Revised: 01/08/2018] [Accepted: 02/10/2018] [Indexed: 11/28/2022]
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Liu CL, Ai HW, Wang WP, Chen L, Hu HB, Ye T, Zhu XH, Wang F, Liao YL, Wang Y, Ou G, Xu L, Sun M, Jian C, Chen ZJ, Li L, Zhang B, Tian L, Wang B, Yan S, Sun ZY. Comparison of 16S rRNA gene PCR and blood culture for diagnosis of neonatal sepsis. Arch Pediatr 2013; 21:162-9. [PMID: 24388336 DOI: 10.1016/j.arcped.2013.11.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 09/01/2013] [Accepted: 11/26/2013] [Indexed: 11/29/2022]
Abstract
UNLABELLED Septicemia is a common cause of morbidity and mortality among newborns in the developing world. However, accurate clinical diagnosis of neonatal sepsis is often difficult because symptoms and signs are often nonspecific. Blood culture has been the gold standard for confirmation of the diagnosis. However, the sensitivity is low and results are usually not promptly obtained. Therefore, the diagnosis of sepsis is often based on clinical signs in association with laboratory tests such as platelets count, immature/total neutrophils ratio (I/T), and a rise in C-reactive protein (CRP). Polymerase chain reaction (PCR) methods for the detection of neonatal sepsis represent new diagnostic tools for the early identification of pathogens. METHODS During a 4-month prospective study, 16S rRNA PCR was compared with conventional blood culture for the diagnosis of neonatal bacterial sepsis. In addition, the relationship between known risk factors, clinical signs, laboratory parameters, and the diagnosis of sepsis was considered. RESULTS Sepsis was suspected in 706 infants from the intensive neonatal care unit. They all were included in the study. The number of positive cultures and positive PCR results were 95 (13.5%) and 123 (17.4%), respectively. Compared with blood culture, the diagnosis of bacterial sepsis by PCR revealed a 100.0% sensitivity, 95.4% specificity, 77.2% positive predictive value, and 100.0% negative predictive value. In this study, Apgar scores at 5 min, weight, icterus, irritability, feeding difficulties, gestational age (GA), premature rupture of membrane (PRM), platelets count, I/T, and a marked rise in CRP were important in establishing the diagnosis of sepsis in the newborn. In addition, weight, GA, PRM, irritability, duration of antibiotic usage, mortality rate, and number of purulent meningitis cases were significantly different between early-onset sepsis and late-onset sepsis. CONCLUSION 16S rRNA PCR increased the sensitivity in detecting bacterial DNA in newborns with signs of sepsis, allowed a rapid detection of the pathogens, and led to shorter antibiotic courses. However, uncertainty about the bacterial cause of sepsis was not reduced by this method. 16S rRNA PCR needs to be further developed and improved. Blood culture is currently irreplaceable, since pure isolates are essential for antimicrobial drug susceptibility testing.
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Affiliation(s)
- C L Liu
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - H W Ai
- Department of clinical laboratory, children's Hospital, 430030 Wuhan, PR China
| | - W P Wang
- Department of clinical laboratory, women and children hospital, 430030 Wuhan, PR China
| | - L Chen
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - H B Hu
- Department of clinical laboratory, children's Hospital, 430030 Wuhan, PR China
| | - T Ye
- Department of clinical laboratory, women and children hospital, 430030 Wuhan, PR China
| | - X H Zhu
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - F Wang
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - Y L Liao
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - Y Wang
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - G Ou
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - L Xu
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - M Sun
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - C Jian
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - Z J Chen
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - L Li
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - B Zhang
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - L Tian
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - B Wang
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - S Yan
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China
| | - Z Y Sun
- Department of clinical laboratory, Tongji hospital, Tongji medical college, Huazhong university of science and technology, 430030 Wuhan, PR China.
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Jian C, Lin L, Li F. Prevalence and risk factors for aspirin resistance in older patients with cardiovascular disease. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.300] [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: 11/04/2022]
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7
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Jian C, Xiaoli L, Li F, Ling Y. Single nucleotide polymorphisms of HO-1 and COX-1 are associated with complete aspirin resistance defined by light transmittance aggregation in the Elderly. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.550] [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: 11/04/2022]
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8
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Xiao-Li S, Yu P, Hose GC, Jian C, Feng-Xiang L. Spider webs as indicators of heavy metal pollution in air. Bull Environ Contam Toxicol 2006; 76:271-7. [PMID: 16468006 DOI: 10.1007/s00128-006-0917-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2005] [Accepted: 12/27/2005] [Indexed: 05/06/2023]
Affiliation(s)
- S Xiao-Li
- Faculty of Life Sciences, Hubei University, Wuhan 430062, People's Republic of China
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Iwase S, Jian C, Kitazawa H, Kamiya A, Miyazaki S, Sugiyama Y, Mukai C, Kohno M, Mano T, Nagaoka S. Changes in muscle sympathetic nerve activity and effects of breathing maneuvers in humans during microgravity induced by parabolic flight. J Gravit Physiol 1999; 6:P71-2. [PMID: 11543033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
The mechanism of cardiovascular deconditioning, such as an orthostatic intolerance after space flight, has not been well clarified. Several studies to investigate that mechanism have focused mainly on hemodynamic changes including heart rate, arterial blood pressure, cardiac output, etc., but no studies have yielded a direct insight into changes in the sympathetic nervous system. Among ground-based experiments, parabolic flight is the only maneuver to expose human subjects to actual microgravity although it lasts for only a short duration of approx. 20 sec. Using microneurography, the present study aimed to analyze the involvement of the sympathetic nervous system in regulating the acute effects of fluid shift induced by parabolic flight during the transitional changes from 1 G to hypergravity, hypergravity to microgravity, and microgravity to hypergravity by direct measurement of sympathetic outflow to the muscles. Some parts of the study were published elsewhere. We also investigated how the sympathetic outflow to muscle is modified during microgravity with elimination of the breathing effect by comparing the cardiovascular parameters under controlled and uncontrolled respiration.
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Affiliation(s)
- S Iwase
- Department of Autonomic Neuroscience, Nagoya University, Japan
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11
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Yi Y, Yang Y, Jian C. [Cerebral hemodynamic impairment and therapeutic effect of external counterpulsation on elderly patients with brain infarction]. Hunan Yi Ke Da Xue Xue Bao 1999; 24:435-7. [PMID: 12080676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Hemodynamic parameters of middle cerebral artery(MCA) were measured with Transcranial Doppler (TCD) in 31 elderly patients with brain infarction during convalescence and 28 healthy elderly controls. Twenty-two elderly patients with brain infarction and cerebral hemodynamic impaired were treated by External Counterpulsation(ECP). The results showed that the Vp and Vm of MCA in patients were significantly lower than that in the healthy controls(P < 0.001), the DVp, DVm and asymmetry of MCA in patients were greater than that in the healthy elderly(P < 0.001, P < 0.005). The Vp and Vm of MCA in patients after ECP were significantly higher than before(P < 0.001). The DVp, DVm and asymmetry of MCA in patients after ECP were significantly lower than before(P < 0.001, P < 0.005). The hemodynamic therapeutic effect is 81.8%.
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Affiliation(s)
- Y Yi
- Department of Geriatrics, Second Affiliated Hospital, Hunan Medical University, Changsha 410011
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Jian C, Lang JH. [Information on diagnosis and treatment in ovarian cancer]. Zhonghua Fu Chan Ke Za Zhi 1992; 27:323-8. [PMID: 1300275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Jian C, Wang G. Biomechanical study of the bile duct system outside the liver. Biomed Mater Eng 1991; 1:105-13. [PMID: 1364629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
Diseases of the bile duct system in the digestive system after surgery are common. In order to clarify the cause of these diseases, research on the diseases from a biomechanical perspective is increasing; however, the same cannot be said of biochemical research. In this paper, by using a new, well-devised testing apparatus, specimens extracted from the bile duct system of canine body are tested. The test data are analyzed using the finite deformation theory, and mechanical properties of the bile duct system outside the liver are investigated. The conclusions show that the viscoelasticity of the bile duct system is very small. In its normal physiological condition, the bile duct wall has an almost uniform distribution of circumferential and longitudinal stress. However, when the diseases of the bile duct system cause high pressure at the bile duct, the circumferential stress and longitudinal stress at the bile inside wall suddenly increase and are much larger than those stresses at the outside wall. The elastic modulus gradually becomes small from the common bile duct and the common hepatic duct to hepatic duct, and the value of elastic modulus for the cystic duct is almost equal to that of the hepatic duct.
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Affiliation(s)
- C Jian
- Center of Biomechanics, Chongqing University, China
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Abstract
A system suitable for recombinant DNA manipulation in mycoplasmas was developed using the cloned antibiotic-resistance genes of Tn4001 and Tn916. An integrative plasmid containing one of the resistance markers was inserted into the genome of Mycoplasma pulmonis to form a recipient strain. This was accomplished by transformation and homologous recombination between chromosomal DNA sequences cloned onto the integrative plasmid. A second vector, the cloning vector, containing the same plasmid replicon and alternate resistance marker, carried cloned foreign DNA. When transformed into mycoplasmal recipients, homologous recombination between plasmid sequences resulted in integration of the cloning vector and foreign DNA. A Brucella abortus gene coding for a 31-kDa protein and the P1 structural gene and operon from Mycoplasma pneumoniae were introduced to examine the feasibility of developing mycoplasma as cloning hosts. Recombinant plasmids as large as 20 kb were inserted into M. pulmonis, and the integrated foreign DNA was stably maintained. The maximum size of clonable DNA was not determined, but plasmids larger than 22 kb have not been transformed into mycoplasmas using polyethylene glycol. Also the size of genome (800-1200 kb) may affect the stability of larger inserts of foreign DNA. This system is applicable to any mycoplasma capable of transformation, homologous recombination and expression of these resistance markers. Because of their lack of a cell wall, mycoplasmas may be useful cloning hosts for membrane or excreted protein genes from other sources.
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Affiliation(s)
- G G Mahairas
- Veterinary Medical Research Institute, College of Veterinary Medicine, Iowa State University, Ames 50011
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