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Copper Indium Sulfide Enables Li-CO_(2)Batteries with Boosted reaction kinetics and Cycling Stability

Energy & Environmental Materials 2023年第5期6卷 372-380页

作者： Lin Chen Jingwen Zhou Junxiang Zhang Guicai Qi Bin Wang Jianli Cheng Institute of Chemical Materials China Academy of Engineering PhysicsMianyang 621900China Yangtze Delta Region Institute Institute of Fundamental and Frontiers SciencesUniversity of Electronic Sciences and Technology of ChinaHuzhou 313001China Institute of Fundamental and Frontiers Sciences University of Electronic Sciences and Technology of ChinaChengdu 611731China Department of Chemistry City University of Hong KongKowloon Hong Kong China

High energy density Li-CO_(2)batteries have attracted much attention owing to the"two birds with one stone"feature in fixing greenhouse gas CO_(2)and providing renewable ***,poor reversibility of the discharge product Li_(2)CO_(3)is one of the main problems that limit its application,resulting in poor cycling stability and severe ***,copper indium sulfide(CIS),a semiconducting non-precious metal sulfide,is fabricated as cathode catalysts for high-performance Li-CO_(2)*** with the synergistic effect of bimetallic valence bonding and coordinated electron transfer,Li-CO_(2)batteries using CIS cathodes exhibit high full specific discharge capacity,excellent rate capability and cycle stability,namely it delivers a high specific full discharge capacity of 8878μAh cm^(-2),runs steadily from 10 to 100μA cm^(-2),and performs a stable long-term cycling behavior(>1050 h)under a high energy efficiency of 84%and a low charge voltage of approximately 3.4 V at 20μA cm^(-2)within 100μAh cm^(-2).In addition,a flexible Li-CO_(2)pouch cell is constructed to reveal the potential of employing CIS to fabricate flexible high energy storage devices in practical *** work shows a promising development pathway toward next-generation sustainable energy storage devices.

关键词： copper indium sulfides cycling stability Li-CO_(2)batteries reaction kinetics

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Empirical correction of kinetic model for polymer thermal reaction process based on first order reaction kinetics

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Chinese Journal of Chemical Engineering 2021年第10期34卷 132-144页

作者： Zhaoxiang Zhang Fei Guo Wei Song Xiaohong Jia Yuming Wang State Key Laboratory of Tribology Tsinghua UniversityBeijing 100084China Joint Research Center for Rubber and Plastic Seals Tsinghua UniversityBeijing 100084China State Key Laboratory of Advanced Forming Technology&Equipment China Academy of Machinery Science&TechnologyBeijing 100044China Tianding Sealing Technology(Beijing)Co. Ltd.Beijing 100072China

Based on the theory of first-order reaction kinetics,a thermal reaction kinetic model in integral form has been *** make the model more applicable,the effects of time and the conversion degree on the reaction rate parameters were *** types of undetermined functions were used to compensate for the intrinsic variation of the reaction rate,and two types of correction methods are *** model was explained and verified using published experimental data of different polymer thermal reaction systems,and its effectiveness and wide adaptability were *** the given kinetic model,only one parameter needs to be *** proposed empirical model is expected to be used in the numerical simulation of polymer thermal reaction process.

关键词： Thermal reaction Polymer processing reaction kinetics Mathematical modeling Empirical correction

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Mitigated reaction kinetics between lithium metal anodes and electrolytes by alloying lithium metal with low-content magnesium

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Journal of Energy Chemistry 2024年第8期95卷 644-650,I0014页

作者： Yang-Yang Wang Ya-Nan Wang Nan Yao Shu-Yu Sun Xiao-Qing Ding Chen-Xi Bi Qian-Kui Zhang Zhao Zheng Cheng-Bin Jin Bo-Quan Li Xue-Qiang Zhang Jia-Qi Huang School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Green Chemical reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China College of Materials and Chemistry China Jiliang UniversityHangzhou 310018ZhejiangChina

Lithium(Li)metal is regarded as a promising anode candidate for high-energy-density rechargeable ***,Li metal is highly reactive against electrolytes,leading to rapid decay of active Li metal ***,alloying Li metal with low-content magnesium(Mg)is proposed to mitigate the reaction kinetics between Li metal anodes and *** atoms enter the lattice of Li atoms,forming solid solution due to the low amount(5 wt%)of *** atoms mainly concentrate near the surface of Mg-alloyed Li metal *** reactivity of Mg-alloyed Li metal is mitigated kinetically,which results from the electron transfer from Li to Mg atoms due to the electronegativity *** on quantitative experimental analysis,the consumption rate of active Li and electrolytes is decreased by using Mgalloyed Li metal anodes,which increases the cycle life of Li metal batteries under demanding ***,a pouch cell(1.25 Ah)with Mg-alloyed Li metal anodes delivers an energy density of 340 Wh kg^(-1)and a cycle life of 100 *** work inspires the strategy of modifying Li metal anodes to kinetically mitigate the side reactions with electrolytes.

关键词： Lithium metal anodes Alloying Anode/electrolyte interface reaction kinetics Pouch cell

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Study on the catalytic degradation of sodium lignosulfonate to aromatic aldehydes over nano-CuO:Process optimization and reaction kinetics

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Chinese Journal of Chemical Engineering 2023年第1期53卷 300-309页

作者： Yingjie Song Shuqi Zhong Yingjiao Li Kun Dong Yong Luo Guangwen Chu Haikui Zou Baochang Sun State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China Research Center of the Ministry of Education for High Gravity Engineering and Technology Beijing University of Chemical TechnologyBeijing 100029China

As one of the few renewable aromatic resources,the research of depolymerization of lignin into highvalue chemicals has attracted extensive attention in recent *** wet aerobic oxidation(CWAO)is an effective technology to convert lignin like sodium lignosulfonate(SL),a lignin derivative,into aromatic aldehydes such as vanillin and ***,how to improve the yield of aromatic aldehyde and conversion efficiency is still a challenge,and many operating conditions that significantly affect the yield of these aromatic compounds have rarely been investigated *** this work,we adopted the stirred tank reactor(STR)for the CWAO process with nano-CuO as catalyst to achieve the conversion of SL into vanillin and *** effect of operating conditions including reaction time,oxygen partial pressure,reaction temperature,SL concentration,rotational speed,catalyst amount,and NaOH concentration on the yield of single phenolic compound was systematically *** results revealed that all these operating conditions exhibit a significant effect on the aromatic aldehyde ***,they should be regulated in an optimal value to obtain high yield of these *** importantly,the reaction kinetics of the lignin oxidation was *** work could provide basic data for the optimization and design of industrial operation of lignin oxidation.

关键词： Nano-CuO Sodium lignosulfonate Catalytic wet aerobic oxidation(CWAO) Aromatic aldehyde reaction kinetics

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Maneuverable B-site cation in perovskite tuning anode reaction kinetics in vanadium redox flow batteries

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Journal of Materials Science & Technology 2024年第19期186卷 199-206页

作者： Yingqiao Jiang Zihe Liu Yujie Ren Ao Tang Lei Dai Ling Wang Suqin Liu Yongguang Liu Zhangxing He School of Chemical Engineering North China University of Science and TechnologyTangshan 063009China Institute of Metal Research Chinese Academy of SciencesShenyang 110016China College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China

The actual performance of vanadium redox flow batteries (VRFBs) is still significantly constrained by the slow kinetics and major parasitic reactivity of anode issues. Herein, a B-site management strategy of SrBO3 (B = Ti, Zr, Hf) perovskites was proposed to promote the anode reaction jointly explored by experiments and first-principle calculations. As the atomic number of B increases, the enhanced polarity of the B-O bond and the increased oxygen defect can boost the adsorption of vanadium ions, while the weakened orbital hybridization of the B-O bond facilitates the charge transfer of anode reaction. Compared with SrTiO3 and SrZrO3, oversized particles and deformed crystals of SrHfO3 reduce its catalysis. Of SrBO3 perovskites, SrZrO3 stands out in catalysis, owing to its outstanding combination of high hydrophilicity, large surface area, and desired crystal structure. Further, the VRFB using SrZrO3 presents a superior energy efficiency (EE) of 63.2% at 300 mA cm-2 and an increase of 15% in EE compared with the pristine cell at 200 mA cm-2. This work lays the foundation for building the connections between the structural and compositional flexibility and the tunable perovskite properties desirable for vanadium redox reactions.

关键词： Vanadium redox flow battery Perovskite Catalyst reaction kinetics Anode

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Thermal pyrolysis conversion of methane to hydrogen(H_(2)):A review on process parameters,reaction kinetics and techno-economic analysis

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Chinese Chemical Letters 2024年第8期35卷 62-73页

作者： Yi Herng Chan Zhe Phak Chan Serene Sow Mun Lock Chung Loong Yiin Shin Ying Foong Mee Kee Wong Muhammad Anwar Ishak Ven Chian Quek Shengbo Ge Su Shiung Lam PETRONAS Research Sdn.Bhd.(PRSB) Kawasan Institusi BangiLot 3288&3289Off Jalan Ayer ItamKajang 43000Malaysia PETRONAS Carbon Capture&Storage(CCS)Enterprise PETRONAS Twin TowersKuala Lumpur City CentreKuala Lumpur 50088Malaysia CO_(2)Research Center(CO2RES) Department of Chemical EngineeringUniversiti Teknologi PETRONASSeri Iskandar 32610Malaysia Department of Chemical Engineering and Energy Sustainability Faculty of EngineeringUniversiti Malaysia Sarawak(UNIMAS)Kota Samarahan 94300Malaysia Institute of Sustainable and Renewable Energy(ISuRE) Universiti Malaysia Sarawak(UNIMAS)Kota Samarahan 94300Malaysia Higher Institution Centre of Excellence(HICoE) Institute of Tropical Aquaculture and Fisheries(AKUATROP)Universiti Malaysia TerengganuKuala Nerus 21030Malaysia Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037China Center for Global Health Research(CGHR) Saveetha Medical CollegeSaveetha Institute of Medical and Technical Sciences(SIMATS)Saveetha UniversityChennai 602105India

Hydrogen(H_(2))is a promising renewable energy which finds wide applications as the world gears toward low-carbon ***,current H_(2) production via steam methane reforming of natural gas or gasification of coal are laden with high CO_(2) ***,methane(CH_(4))pyrolysis has emerged as a potential technology to generate low-carbon H_(2) and solid *** this review,the current state-of-art and recent progress of H_(2) production from CH_(4) pyrolysis are reviewed in *** such as funda-mental mechanism and chemistry involved,effect of process parameters on the conversion efficiency and reaction kinetics for various reaction media and catalysts are elucidated and critically ***-ature,among other factors,plays the most critical influence on the methane pyrolysis *** metal/salt could lower the operating temperature of methane pyrolysis to1000℃.Based on the reaction kinetics,metal-based cata-lysts were more efficient in lowering the activation energy of the reaction to 29.5-88 kJ/mol from that of uncatalyzed reaction(147-420.7 kJ/mol).Besides,the current techno-economic performance of the pro-cess reveals that the levelized cost of H_(2) is directly influenced by the sales price of carbon(by-product)generated,which could offset the overall ***,the main challenges of reactor design for efficient product separation and retrieval,as well as catalyst deactivation/poisoning need to be debottlenecked.

关键词： Pyrolysis Methane Hydrogen reaction kinetics Techno-economic analysis

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Sulfite as the substrate of C-sulfonate metabolism ofα,β-unsaturated carbonyl containing andrographolide:analysis of sulfite in rats'intestinal tract and the reaction kinetics of andrographolide with sulfite

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Chinese Journal of Natural Medicines 2021年第9期19卷 706-712页

作者： HUO Zhi-Peng FENG Xin-Chi WANG Yu TIAN Yu-Ting QIU Feng School of Chinese Materia Medica and State Key Laboratory of Component-based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjin 301617China ~TCM Research Center Tasly AcademyTasly Holding Group Co.Ltd.Tianjin 300402China State Key Laboratory of Critical Technology in Innovative Chinese Medicine Tasly Pharmaceutical Co.Ltd.Tianjin 300402China Institute of Pharmacy China Pharmaceutical UniversityNanjing 210009China Institute of Pharmaceutical Science and Technology Tianjin UniversityTianjin 300072China

One-sixth of the currently known natural products containα,β-unsaturated carbonyl *** previous studies reported a rare C-sulfonate metabolic *** groups were linked to theβ-carbon ofα,β-unsaturated carbonyl-based natural compounds through this ***,the mechanism of this type of metabolism is still not fully understood,especially whether it is formed through enzyme-mediated biotransformation or direct sulfite *** this work,the enzyme-mediated and non-enzymatic pathways were ***,the sulfite content in rat intestine was determined by LC-MS/*** results showed that the amount of sulfite in rat intestinal contents was from 41.5 to 383μg·g^(-1),whereas the amount of sulfite in rat feed was lower than the lower limit of quantitation(20μg·g^(-1)).Second,the reaction kinetics of sulfite-andrographolide reactions in phosphate buffer solutions(pH 6-8)was *** half-lives of andrographolide ranged from minutes to *** was suggested that the C-sulfonate reaction of andrographolide was very ***,the C-sulfonate metabolites of andrographolide were both detected when andrographolide and L-cysteine-S-conjugate andrographolide were incubated with the rat small intestine contents or sulfite,indicating that the sulfite amount in rat intestine contents was high enough to react with andrographolide,which assisted a significant portion of andrographolide ***,the comparison of andrographolide metabolite profiles among liver homogenate(with NADPH),liver S9(with NADPH),small intestine contents homogenate(with no NADPH),and sulfite solution incubations showed that the C-sulfonate metabolites were predominantly generated in the intestinal tract by non-enzymatic *** summary,sulfite can serve as a substrate for C-sulfonate metabolism,and these results identified non-enzymatically nucleophilic addition as the potential mechanism for C-sulfonate metabolism of compounds containingα,β-unsaturated carbonyl moie

关键词： Sulfite C-Sulfonate metabolites α,β-Unsaturated carbonyl reaction kinetics Andrographolide Non-enzymatic

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reaction kinetics OVER PRECIPITATED Fe/Mn/K CATALYST FOR THE FISCHER-TROPSCH SYNTHESIS

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Journal of Energy Chemistry 1995年第3期 311-319页

作者： SHEN Wen-Jie YAN Shi-Run ZHOU Jing-Lai ZHANG Bi-JiangInstitute of Coal Chemistry, Academia Sinica Taiyuan, Shanxi 030001

The kinetics of the Fischer-Tropsch Synthesis reaction is studied in an internally recycled reactor (CSTR) over a commercial, precipitated Fe/Mn/K catalyst. Kinetic data are obtained with 1 47-4.04 H2/CO feed gas over a temperature range of 265-320℃, a pressure range of 1.0-2.6 MPa, and a space velocity range of 300-800 h-1 . The kinetic model which fits the experimental data well is the same as that of the intrinsic kinetics, i.e. -RH2+CO=kPH2PCO/(PCO+bPH2O, where k is the kinetic constant for the rate-determining step and b is a function of temperature only. This model may be derived by assuming that the rate-determining step is the hydrogenation of adsorbed CO according to the enol mechanism. It is found that the CO usage ratio is probably independent of synthesis gas conversion and total pressure, and the catalyst shows high water-gas-shift activity.

关键词： Fischer-Tropsch Synthesis reaction kinetics Fe/Mn/K catalyst

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Fe-Ni-F electrocatalyst for enhancing reaction kinetics of water oxidation

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Chinese Journal of Structural Chemistry 2024年第2期43卷 60-65页

作者： Yi Zhang Biao Wang Chao Hu Muhammad Humayun Yaping Huang Yulin Cao Mosaad Negem Yigang Ding Chundong Wang School of Chemical Engineering and Pharmacy Key Laboratory of Green Chemical Process of Ministry of EducationKey Laboratory of Novel Reactor and Green Chemical Technology of Hubei ProvinceWuhan Institute of TechnologyWuhan430073PR China Energy Waterand Environment LabCollege of Humanities and SciencesPrince Sultan UniversityRiyadh11586Saudi Arabia School of Integrated Circuits Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan430074PR China Physics Laboratory Industrial Training CenterShenzhen Polytechnic UniversityShenzhen518055PR China Chemistry Department Faculty of ScienceFayoum UniversityFayoum63514Egypt

Highly active and low-cost oxygen evolution reaction(OER)catalytic electrodes are extremely essential for exploration of green hydrogen via water ***,an advanced Fe-Ni-F electrocatalyst is fabricated by a facile annealing strategy using ammonium fluoride,of which the structure feature is unveiled by XRD,FESEM,TEM,EDS,BET,and XPS *** as-prepared Fe-Ni-F addresses a low overpotential of 277 mV and a small Tafel slope of 49 mV dec^(-1)at a current density of 10 mA cm^(-2),significantly outperforming other control samples as well as the state-of-the-art RuO_(2).The advanced nature of our Fe-Ni-F catalyst could also be further evidenced from the robust stability in KOH alkaline solution,showing as 5.41%degradation after 24 h continuous *** analysis,it suggests that the decent catalytic activity should be attributed to the formed bimetallic(oxy)hydroxides because of the introduction of fluoride and the synergistic effect of iron and nickel towards oxygen *** work represents the potential of Fe-and/or Ni-based fluoride as efficient catalyst for low-energy consumption oxygen generation.

关键词： Fluoride Oxygen evolution reaction Fe-Ni-F reaction kinetics

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A study on the reaction kinetics of mineral surface adsorption in mix system

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Science China Earth Sciences 1999年第3期42卷 250-257页

作者：吴大清刁桂仪彭金莲 1. Guangzhou Institute of Geochemistry Chinese Academy of Sciences 510640 Guangzhou China

The experimental results on adsorption of ions pb2+, Zn2+ and Ag+ onto mineral surfaces in a mix system show that the reaction kinetics of adions adsorbed onto mineral surfaces was mainly controlled by their diffusion rates in solution. The concentration variations can be fit for the second-order rate equation with good determined coefficients r = 0.800 5—0.979 7. In the near neutral solution, the concentration of exchanged ions K+ and Na+ related to reaction time can be described by the fint-order rate equation with r = 0.855 7–0.997 7. Meanwhile, the complex diffusionexchange rate equation is suitable for describing the ca2 + concentration variation, as ions Pb2 + and Zn2+ were adions. Experimental data show that the amount of ions K+, Na+and Ca2+ release is much more than that of adion decrement in solution. This fact may suggest that the complexstion reaction of adions Pb2+, Z2+ and Ag+ with the mineral surfaces was the major reaction process while adions were not entering the phyllosilicate interlayers or CaCO3 lattice to exchange the ions K+, Na+ and Ca2+ at room temperature.

关键词： metal ions minerals mix system surtace adsorption reaction kinetics

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