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Alumina modified sodium vanadate cathode for aqueous zinc-ion batteries

《能源前沿(英文)》   页码 775-781 doi: 10.1007/s11708-023-0902-8

摘要: Aqueous zinc-ion batteries (ZIBs) have great prospects for widespread application in massive scale energy storage. By virtue of the multivalent state, open frame structure and high theoretical specific capacity, vanadium (V)-based compounds are a kind of the most developmental potential cathode materials for ZIBs. However, the slow kinetics caused by low conductivity and the capacity degradation caused by material dissolution still need to be addressed for large-scale applications. Therefore, sodium vanadate Na2V6O16·3H2O (NVO) was chosen as a model material, and was modified with alumina coating through simple mixing and stirring methods. After Al2O3 coating modification, the rate capability and long-cycle stability of Zn//NVO@Al2O3 battery have been significantly improved. The discharge specific capacity of NVO@Al2O3 reach up to 228 mAh/g (at 4 A/g), with a capacity reservation rate of approximately 68% after 1000 cycles, and the Coulombic efficiency (CE) is close to 100%. As a comparison, the capacity reservation rate of Zn//NVO battery is only 27.7%. Its superior electrochemical performance is mainly attributed to the Al2O3 coating layer, which can increase zinc-ion conductivity of the material surface, and to some extent inhibit the dissolution of NVO, making the structure stable and improving the cyclic stability of the material. This paper offers new prospects for the development of cathode coating materials for ZIBs.

关键词: cathodes     aqueous zinc-ion batteries     sodium vanadate     alumina     coating    

Two-dimensional SnS2 nanosheets on Prussian blue template for high performance sodium ion batteries

Glenn J. Sim, Kakui Ma, Zhixiang Huang, Shaozhuan Huang, Ye Wang, Huiying Yang

《化学科学与工程前沿(英文)》 2019年 第13卷 第3期   页码 493-500 doi: 10.1007/s11705-019-1826-z

摘要: Three-dimensional Prussian blue (PB) nanostructures was obtained via a one-step hydrothermal method. Subsequently, two-dimensional tin disulfide (SnS ) nanosheets were grown onto PB through a facile hydrothermal synthesis. The as prepared SnS /PB is further employed as the anode of sodium ion batteries (SIBs). SnS /PB nanoarchitecture delivers a specific capacity of 725.7 mAh∙g at 50 mA∙g . When put through more than 200 cycles, it achieved a stable cycling capacity of 400 mAh∙g at 200 mA∙g . The stable Na storage properties of SnS /PB was attributed to the synergistic effect among the conductive PB carbon, used as the template in this work. These results obtained potentially paves the way for the development of excellent electrochemical performance with stable performance of SIBs.

关键词: Prussian blue     carbon nanocubes     tin disulfide     sodium ion batteries    

Effect of sodium ions in synthesis of titanium silicalite-1 on its catalytic performance for cyclohexanone

Pengxu YAO,Yaquan WANG,Teng ZHANG,Shuhai WANG,Xiaoxue WU

《化学科学与工程前沿(英文)》 2014年 第8卷 第2期   页码 149-155 doi: 10.1007/s11705-014-1409-y

摘要: Titanium silicalite-1 (TS-1) has been hydrothermally synthesized with tetrapropylammonium hydroxide (TPAOH) as the template in the presence of various amounts of Na , characterized by inductively coupled plasma, X-ray diffraction, scanning electron microscope, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and ultro-violet-visible spectroscopy and studied in cyclohexanone ammoximation. The characterization results show that with the increase of Na concentration in the synthesis, both the crystal sizes of TS-1and extra framework Ti increase but framework Ti decreases. The addition of Na below 3 mol-% of TPAOH in the synthesis does not influence the catalytic properties with above 98% conversion of cyclohexanone and 99.5% selectivity to cyclohexanone oxime. However, at the concentrations of Na ≥3 mol-% of TPAOH in the synthesis, the catalysts are deactivated faster with the increase of Na addition, which can be attributed to more high molecular weight byproducts deposited in the large TS-1 particles and the loss of the frame-work titanium. The results of this work are of great importance for the industry.

关键词: extra framework Ti     cyclohexanone ammoximation     titanium silicalite-1     sodium ion     crystal size    

钠离子电池工程化——机遇与挑战 Review

赵丽娜, 张腾, 李巍, 李涛, 张隆, 张晓光, 汪志义

《工程(英文)》 2023年 第24卷 第5期   页码 172-183 doi: 10.1016/j.eng.2021.08.032

摘要:

当前,在应对全球能源枯竭与环境恶化之际,可持续且环境友好的可再生能源正迎来重要的发展机遇。以二次电池为代表的电能存储(EES)技术,可实现绿色新能源安全且经济有效的存储和转化,被视为可平抑可再生能源间歇性并实现稳定并网输入的最佳解决方案。钠离子电池(SIB),受益于钠资源的丰富
性及低成本,是下一代大规模电化学存储系统最具应用前景的选择之一。本文详细讨论了锂离子电池(LIB)和钠离子电池在不同应用场景下的主要区别,并描述了当前对钠离子电池的理解。通过比较锂离子电池、铅酸电池(LAB)和钠离子电池之间的技术发展情况,进一步揭示钠离子电池的优势。本文以基于钠离子电池技术所取得的商业化成就为文章亮点,重点介绍了五家钠离子电池企业和相应的钠离子电池产品,以及各自的钠离子电池化学与技术。最后,讨论了下一代钠离子电池商业化的前景与挑战。

关键词: 电化学储能     钠离子电池     商业化     下一代    

铋基亲钠框架互穿钠金属负极实现无枝晶/高倍率钠离子电池

赵婉玉, 郭敏, 左志军, 赵晓莉, 窦湟琳, 张宜杰, 李时莹, 吴子辰, 石雅雲, 马紫峰, 杨晓伟

《工程(英文)》 2022年 第11卷 第4期   页码 89-96 doi: 10.1016/j.eng.2021.08.028

摘要:

具有高体积能量密度的钠(Na)金属电池非常需要能够在高倍率下运行的性能。然而在大倍率下,钠离子块体金属负极中不均匀且大量的迁移会导致金属的局部沉积/溶解,带来严重的枝晶生长和松散堆叠的问题。在本工作中,我们设计了具有亲钠性质的铋化钠/钠互穿金属负极(Na/Na3Bi)。与块体钠相比,这种互穿负极提供了强烈的Na+吸附能力和低的离子扩散势垒,确保了Na+的均匀成核和快速迁移,从而实现在高电流密度下的均匀沉积和溶解。此外,亲钠性的铋基材料能够保证金属钠沉积在框架的内部,实现金属的致密沉积,有利于提高体积容量。Na/Na3Bi 金属负极能够同时承受高电流密度(5 mA∙cm−2)和高循环容量(5 mA∙h∙cm−2),并且可以在2 mA∙cm−2的电流密度下长期(长达2800 h)稳定循环。

关键词: 钠金属负极     无枝晶负极     致密电沉积     亲钠性铋基材料     离子传输壁垒    

钠离子电池——碳中和世界的储能技术

吴凯, Xinwei Dou, 张欣欣, 欧阳楚英

《工程(英文)》 2023年 第21卷 第2期   页码 36-38 doi: 10.1016/j.eng.2022.04.011

A mini review: Functional nanostructuring with perfectly-ordered anodic aluminum oxide template for energy conversion and storage

Huaping Zhao, Long Liu, Yong Lei

《化学科学与工程前沿(英文)》 2018年 第12卷 第3期   页码 481-493 doi: 10.1007/s11705-018-1707-x

摘要:

Nanostructures have drawn great attentions for functional device applications. Among the various techniques developed for fabricating arrayed nanostructures of functional materials, nanostructuring technique with porous anodic aluminum oxide (AAO) membrane as templates becomes more attractive owing to the superior geometrical characteristics and low-cost preparation process. In this mini review, we summarize our recent progress about functional nanostructuring based on perfectly-ordered AAO membrane to prepare perfectly-ordered nanostructure arrays of functional materials toward constructing high-performance energy conversion and storage devices. By employing the perfectly-ordered AAO membrane as templates, arrayed nanostructures in the form of nanodot, nanorod, nanotube and nanopore have been synthesized over a large area. These as-obtained nanostructure arrays have large specific surface area, high regularity, large-scale implementation, and tunable nanoscale features. All these advanced features enable them to be of great advantage for the performance improvement of energy conversion and storage devices, including photoelectrochemical water splitting cells, supercapacitors, and batteries, etc.

关键词: nanostructuring     perfectly-ordered AAO template     photoelectrochemical water splitting     sodium-ion batteries     supercapacitors    

Construction of sustainable, colored and multifunctional protein silk fabric using biomass riboflavin sodium

《化学科学与工程前沿(英文)》 2023年 第17卷 第8期   页码 1131-1139 doi: 10.1007/s11705-023-2321-0

摘要: Riboflavin sodium phosphate has been confirmed as a promising biomass product derived from natural plants. In this paper, a novel method of dyeing and multifunctional modification of silk fabric by impregnation with riboflavin sodium phosphate was proposed, such that protein silk fabric can be endowed with bright yellow color and multi-functionality. The results of this paper confirmed that the pH and concentration of riboflavin sodium phosphate solution are critical factors for dyeing and multifunctional modification. Attractively, the photochromic performance was one of the most distinctive features of the modified silk fabric, and the dyed silk fabric turned into fluorescent green from original yellow under 365 nm ultraviolet lamp. Furthermore, the modified silk fabric exhibited good antibacterial properties with a high inhibition rate of 92% for Escherichia coli. Besides, the flame retardancy of silk fabric was significantly improved after modification. The damaged length of modified silk fabric with 40% owf riboflavin sodium phosphate was lower than 10.4 cm and passed the B1 classification. As revealed by the result of this paper, riboflavin sodium phosphate is sufficiently effective in serving as an eco-friendly multifunctional agent for strengthening the add-value of silk textiles.

关键词: biomass     riboflavin sodium phosphate     silk protein     multifunctional modification     flame retardant    

Preliminary design of an SCO conversion system applied to the sodium cooled fast reactor

《能源前沿(英文)》 2021年 第15卷 第4期   页码 832-841 doi: 10.1007/s11708-021-0777-5

摘要: The supercritical carbon dioxide (SCO2) Brayton cycle has become an ideal power conversion system for sodium-cooled fast reactors (SFR) due to its high efficiency, compactness, and avoidance of sodium-water reaction. In this paper, the 1200 MWe large pool SFR (CFR1200) is used as the heat source of the system, and the sodium circuit temperature and the heat load are the operating boundaries of the cycle system. The performance of different SCO2 Brayton cycle systems and changes in key equipment performance are compared. The study indicates that the inter-stage cooling and recompression cycle has the best match with the heat source characte-ristics of the SFR, and the cycle efficiency is the highest (40.7%). Then, based on the developed system transient analysis program (FR-Sdaso), a pool-type SFR power plant system analysis model based on the inter-stage cooling and recompression cycle is established. In addition, the matching between the inter-stage cooling recompression cycle and the SFR during the load cycle of the power plant is studied. The analysis shows that when the nuclear island adopts the flow-advanced operation strategy and the carbon dioxide flowrate in the SCO2 power conversion system is adjusted with the goal of maintaining the sodium-carbon dioxide heat exchanger sodium side outlet temperature unchanged, the inter-stage cooling recompression cycle can match the operation of the SFR very well.

关键词: sodium-cooled fast reactor (SFR)     supercritical carbon dioxide (SCO2)     brayton cycle     load cycle    

Advancing ion-exchange membranes to ion-selective membranes: principles, status, and opportunities

《环境科学与工程前沿(英文)》 2023年 第17卷 第2期 doi: 10.1007/s11783-023-1625-0

摘要:

● IEM ion/ion selectivities of charge, valence, & specific ion are critically assessed.

关键词: Ion-exchange membranes     Selectivity     Separations    

Toxic effect of sodium perfluorononyloxy-benzenesulfonate on in aerobic denitrification, cell structure

《环境科学与工程前沿(英文)》 2021年 第15卷 第5期 doi: 10.1007/s11783-021-1391-9

摘要:

• OBS inhibited the growth of P. stutzeri and destroyed its structure.

关键词: Sodium perfluorononyloxy-benzenesulfonate     Aerobic denitrification     Pseudomonas stutzeri     Ecotoxicity     ROS     Persist organic pollutants     Toxicity     Denitrification     Microbiology    

Formation of disinfection by-products during sodium hypochlorite cleaning of fouled membranes from membrane

《环境科学与工程前沿(英文)》 2021年 第15卷 第5期 doi: 10.1007/s11783-021-1389-3

摘要:

•HAAs was dominant among the DBPs of interest.

关键词: MBR     Biofouling     EPS     Chemical cleaning     DBPs     CLSM    

Industrial waste utilization method: producing poly-ferric sulfate (PFS) from sodium-jarosite residue

Zhongguo LI,Wenyi YUAN

《环境科学与工程前沿(英文)》 2015年 第9卷 第4期   页码 731-737 doi: 10.1007/s11783-014-0687-4

摘要: Sodium-jarosite is a type of industrial waste that results from hydrometallurgy and inorganic chemical production. The iron content of jarosite residue may be utilized to produce theoretically the ferrous materials. The difficulty in production of high quality poly-ferric sulfate (PFS) is how to remove impurities contained in jarosite residue. This paper proposes a novel method for disposing sodium-jarosite which can be used to synthesize PFS, a very important reagent for treating waste water. The method consists of a two-step leaching experimental procedures. The first step, pre-leaching process, is to remove impurity metals by strictly controlling the leaching conditions. The acid concentration of acidic water was adjusted according to the content of impurity metals in sodium-jarosite and the leaching temperature was controlled at 25°C. The second step is to decompose sodium-jarosite to provide enough ferric ions for synthesizing PFS, the concentrated sulfuric acid consumption was 0.8 mL·g sodium-jarosite and the leaching temperature was above 60°C. In the experiment, decomposing iron from sulfate sodium-jarosite can take the place of ferric martials for synthesizing PFS. Results show that the PFS synthesized from sodium-jarosite had a high poly-iron complex Fe (SO ) (OH) ·20H O. Further, the PFS product’s specifications satisfied the national standard of China.

关键词: sodium-jarosite residue     utilization     poly-ferric sulfate (PFS)    

储能钠电池技术发展的挑战与思考

胡英瑛,吴相伟,温兆银,侯明,衣宝廉

《中国工程科学》 2021年 第23卷 第5期   页码 94-102 doi: 10.15302/J-SSCAE-2021.05.013

摘要:

储能安全是国家能源安全的重要方面,是国民经济发展的重要支撑,对国家安全、可持续发展以及社会稳定具有重要的影响。钠电池技术兼具高功率密度、高能量密度、低成本以及高安全性等优势,成为一类重要的大规模储能技术。本文重点介绍了包括钠硫电池和钠– 金属氯化物电池等在内的典型钠电池体系的技术优势和应用场景,并通过分析钠电池技术在国内外的发展与应用现状提出了我国钠电池技术可能的发展方向并给出了相应的建议,包括支持储能钠电池相关材料科学的研究和工程化技术攻关、推动储能钠电池相关上下游产业的聚集发展、建立健全储能钠电池的相关标准和性能评价平台等措施,以提升我国储能钠电池技术的研发水平和技术成熟度,为我国的能源安全建设带来新的可靠选择。

关键词: 电化学储能     钠电池     钠硫电池     钠– 金属氯化物电池     ZEBRA 电池    

Nucleation and growth mechanism of cefodizime sodium at different solvent compositions

Xinwei ZHANG, Shudong ZHANG, Xiaodan SUN, Zequn YIN, Quanjie LIU, Xiwen ZHANG, Qiuxiang YIN

《化学科学与工程前沿(英文)》 2013年 第7卷 第4期   页码 490-495 doi: 10.1007/s11705-013-1350-5

摘要: The induction time of cefodizime sodium was measured in ethanol-water at different solvent compositions by the laser technology measurement. The results indicate that the solvent composition played an important role in the supersaturation and the nucleation process of cefodizime sodium solution. According to the modified classical nucleation theory, the nucleation and growth mechanism were identified. The correlation results show that heterogeneous nucleation dominated the nucleation process at lower supersaturation, where homogeneous nucleation is the most important mechanism at higher supersaturation. Based on the correlated results, the 2D mediated growth mechanism had the highest correlation coefficients ( ), so this mechanism was selected as the proper growth mechanism for cefodizime sodium.

关键词: cefodizime sodium     induction time     primary nucleation     growth mechanism    

标题 作者 时间 类型 操作

Alumina modified sodium vanadate cathode for aqueous zinc-ion batteries

期刊论文

Two-dimensional SnS2 nanosheets on Prussian blue template for high performance sodium ion batteries

Glenn J. Sim, Kakui Ma, Zhixiang Huang, Shaozhuan Huang, Ye Wang, Huiying Yang

期刊论文

Effect of sodium ions in synthesis of titanium silicalite-1 on its catalytic performance for cyclohexanone

Pengxu YAO,Yaquan WANG,Teng ZHANG,Shuhai WANG,Xiaoxue WU

期刊论文

钠离子电池工程化——机遇与挑战

赵丽娜, 张腾, 李巍, 李涛, 张隆, 张晓光, 汪志义

期刊论文

铋基亲钠框架互穿钠金属负极实现无枝晶/高倍率钠离子电池

赵婉玉, 郭敏, 左志军, 赵晓莉, 窦湟琳, 张宜杰, 李时莹, 吴子辰, 石雅雲, 马紫峰, 杨晓伟

期刊论文

钠离子电池——碳中和世界的储能技术

吴凯, Xinwei Dou, 张欣欣, 欧阳楚英

期刊论文

A mini review: Functional nanostructuring with perfectly-ordered anodic aluminum oxide template for energy conversion and storage

Huaping Zhao, Long Liu, Yong Lei

期刊论文

Construction of sustainable, colored and multifunctional protein silk fabric using biomass riboflavin sodium

期刊论文

Preliminary design of an SCO conversion system applied to the sodium cooled fast reactor

期刊论文

Advancing ion-exchange membranes to ion-selective membranes: principles, status, and opportunities

期刊论文

Toxic effect of sodium perfluorononyloxy-benzenesulfonate on in aerobic denitrification, cell structure

期刊论文

Formation of disinfection by-products during sodium hypochlorite cleaning of fouled membranes from membrane

期刊论文

Industrial waste utilization method: producing poly-ferric sulfate (PFS) from sodium-jarosite residue

Zhongguo LI,Wenyi YUAN

期刊论文

储能钠电池技术发展的挑战与思考

胡英瑛,吴相伟,温兆银,侯明,衣宝廉

期刊论文

Nucleation and growth mechanism of cefodizime sodium at different solvent compositions

Xinwei ZHANG, Shudong ZHANG, Xiaodan SUN, Zequn YIN, Quanjie LIU, Xiwen ZHANG, Qiuxiang YIN

期刊论文