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Khaki-coloured niobium oxide nanochains with enhanced lithium storage performances 增强锂存储性能的卡其色氧化铌纳米链
International Journal of Nanomanufacturing Pub Date : 2019-01-08 DOI: 10.1504/IJNM.2019.10018331
Yanxin Bian, Zhonghua Zhang, J. Su, Changming Mao, Guicun Li
{"title":"Khaki-coloured niobium oxide nanochains with enhanced lithium storage performances","authors":"Yanxin Bian, Zhonghua Zhang, J. Su, Changming Mao, Guicun Li","doi":"10.1504/IJNM.2019.10018331","DOIUrl":"https://doi.org/10.1504/IJNM.2019.10018331","url":null,"abstract":"Khaki-coloured niobium oxides (H-Nb2O5) nanochains were synthesised via a facile low temperature solution-based method combined with hydrogenation treatment process. The nano-sized chain-like architectures facilitate the fast lithium ion diffusions. Meanwhile, the hydrogen reduction process can effectively endow Nb2O5 with partial Nb4+ species and/or oxygen vacancies, resulting in a large enhancement of its intrinsic electronic conductivity. When evaluated for lithium storage capacity, the H-Nb2O5 showed twice the rate capability at 20 C compared to that of the pristine Nb2O5 nanochains due to the combination of the reduced path and Nb4+ doping induced high electronic conductivity. This facile hydrogenation method is promising for designing high performance carbon-free electrode materials for lithium ion batteries.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42776854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The luminescent properties of GdAlO3:Tb3+ phosphors based on molten salts addition 熔盐加成GdAlO3:Tb3+荧光粉的发光性能
International Journal of Nanomanufacturing Pub Date : 2019-01-08 DOI: 10.1504/IJNM.2019.10018324
Jinkai Li, Wenzhi Wang, Z. Liu
{"title":"The luminescent properties of GdAlO3:Tb3+ phosphors based on molten salts addition","authors":"Jinkai Li, Wenzhi Wang, Z. Liu","doi":"10.1504/IJNM.2019.10018324","DOIUrl":"https://doi.org/10.1504/IJNM.2019.10018324","url":null,"abstract":"The (Gd1−xTbx)AlO3 (x = 0-0.12) were obtained through ammonium bicarbonate co-precipitation technology. The pure-phase (Gd1−xTbx)AlO3 with good dispersion could be obtained at relatively lower temperature of 1,000°C. Under optimum UV excitation into 275 nm, the photoluminescence (PL) spectra display a series of 5D4−7FJ transitions of Tb3+ in (Gd1−xTbx)AlO3 system with the strongest green emission at ~546 nm. The overlapping between 8S7/2−6IJ intra f-f transition of Gd3+ and 4f8-4f75d1 transition of Tb3+ at 275 nm suggesting the Gd3+ → Tb3+ energy transfer, and the quenching contents of Tb3+ was found to be ~10 at%. The luminescent property of GdAlO3:Tb3+ phosphor could be further improved with molten salt incorporation. The optimal composition of molten salts was determined to be the mixture of NaCl/Na2SO4 (5 wt% NaCl), and the mass ratio of mixture molten salts to precursor was 2:1. The relationship between the luminescent property and molten salts composition were studied in detail.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42561819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Sulphur-doped banana peel-derived activated carbon as electrode materials for supercapacitors 硫掺杂香蕉皮活性炭作为超级电容器电极材料
International Journal of Nanomanufacturing Pub Date : 2019-01-08 DOI: 10.1504/IJNM.2019.10018335
H. Chen, Zhuangzhi Zhao, Peirong Qi, Gang Wang, Lei Shi, Feng Yu
{"title":"Sulphur-doped banana peel-derived activated carbon as electrode materials for supercapacitors","authors":"H. Chen, Zhuangzhi Zhao, Peirong Qi, Gang Wang, Lei Shi, Feng Yu","doi":"10.1504/IJNM.2019.10018335","DOIUrl":"https://doi.org/10.1504/IJNM.2019.10018335","url":null,"abstract":"Agricultural waste banana peel (BP) as a sustainable biomass resource is used to produce porous carbon (PC) and activated carbon (AC) materials. Sulphur-doped banana peel-derived AC (S-BP-AC) was successfully prepared for supercapacitors. The results show that the S-BP-AC presents a high Brunauer-Emmett-Teller surface area of 2,224.9 m2/g, a large pore volume of 0.77 cm3/g, and a suitable pore-size distribution of approximately 0.8 nm. It is easy to bring S-BP-AC into contact with an electrolyte. The S-BP-AC electrode had great specific capacitance of 162.5 F/g at a current density of 0.5 A/g in a 6 M KOH aqueous electrolyte. The results indicate that the S-BP-AC can be applied to use in high performance supercapacitors.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47662070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Scalable synthesis of Sn nanoparticles encapsulated in hierarchical porous carbon networks for high-rate reversible lithium storage 用于高速率可逆锂存储的多层多孔碳网络中Sn纳米粒子的可扩展合成
International Journal of Nanomanufacturing Pub Date : 2019-01-08 DOI: 10.1504/IJNM.2019.10018329
Qingbin Zhu, Jinghao Liu, Y. Zhong, Guicun Li
{"title":"Scalable synthesis of Sn nanoparticles encapsulated in hierarchical porous carbon networks for high-rate reversible lithium storage","authors":"Qingbin Zhu, Jinghao Liu, Y. Zhong, Guicun Li","doi":"10.1504/IJNM.2019.10018329","DOIUrl":"https://doi.org/10.1504/IJNM.2019.10018329","url":null,"abstract":"Sn nanoparticles encapsulated in hierarchical porous carbon networks ([email protected]) have been synthesised by the carbothermal reduction reaction of sodium stannate-crosslinked sodium polyacrylate xerogel. The synthetic strategy is simple and effective for the scalable production of [email protected] The [email protected] show homogeneous distribution of Sn nanoparticles within hierarchical porous conductive carbon matrix. The obtained [email protected] exhibit high reversible discharge capacity (1,652.1 mAh g−1 at 0.1 A g−1), superior rate performance (499.7 mAh g−1 at 2 A g−1), and excellent cycling stability (553.0 mA h g−1 at 1.5 A g−1 after 150 cycles). The superior lithium storage performances of the [email protected] are due to uniform distribution of Sn nanoparticles within hierarchical porous conductive carbon network, which could not only provide a conductive matrix, but also buffer huge volume change caused by lithiation and thus guarantee integrity of the [email protected] structure.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43252272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preparation and characterization of cMWCNTs-mSA/mCS bipolar membrane for electrochemical synthesis 电化学合成用cMWCNTs mSA/mCS双极膜的制备与表征
International Journal of Nanomanufacturing Pub Date : 2019-01-08 DOI: 10.1504/IJNM.2019.10014399
Suyu Shi, Linan Wang, K. Zhao, Chuntai Liu, G. Zheng
{"title":"Preparation and characterization of cMWCNTs-mSA/mCS bipolar membrane for electrochemical synthesis","authors":"Suyu Shi, Linan Wang, K. Zhao, Chuntai Liu, G. Zheng","doi":"10.1504/IJNM.2019.10014399","DOIUrl":"https://doi.org/10.1504/IJNM.2019.10014399","url":null,"abstract":"In this study, a bipolar membrane (BPM) of sodium alginate (SA) and chitosan (CS) was prepared based on carboxyl multi-walled carbon nanotubes (cMWCNTs). To improve the compatibility of anion-exchange layer and cation-exchange layer, polyvinyl alcohol (PVA) was blended with both the SA and CS, respectively. A casting method was employed to prepare the modified BPM named as cMWCNTs-mSA/mCS BPM for simplicity. The morphology, thermal and structure stability, electrochemical properties and ion penetrability of the BPM were characterised. Scanning electron microscopy (SEM) images illustrate a structure consisting of two distinct layers that are closely combined with each other. Thermal gravimetric (TG) results indicate that the thermal stability of cMWCNTs-mSA/mCS BPM is significantly improved. Swelling behaviour implies a proper hydrophilic performance and excellent structure stability in alkali solution. Compared with SA/CS BPM, the working voltage of cMWCNTs-mSA/mCS BPM is decreased sharply. Furthermore, the cMWCNTs-mSA/mCS BPM exhibited higher ion penetrability which is beneficial for electrochemical synthesis.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48312169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
One-dimensional Z-scheme TiO<SUB align="right">2/WO<SUB align="right">3 composite nanofibres for enhanced photocatalytic activity of hydrogen production 一维Z-scheme TiO&lt；SUB align="right"&gt;2/WO&lt;SUB align="right"&gt；3复合纳米纤维增强光催化产氢活性
International Journal of Nanomanufacturing Pub Date : 2019-01-01 DOI: 10.1504/ijnm.2019.097259
Dongyang Wan, Peng Zhang, Jiangtao Zhao, Junhua Hu, Guosheng Shao
{"title":"One-dimensional Z-scheme TiO&lt;SUB align=\"right\"&gt;2/WO&lt;SUB align=\"right\"&gt;3 composite nanofibres for enhanced photocatalytic activity of hydrogen production","authors":"Dongyang Wan, Peng Zhang, Jiangtao Zhao, Junhua Hu, Guosheng Shao","doi":"10.1504/ijnm.2019.097259","DOIUrl":"https://doi.org/10.1504/ijnm.2019.097259","url":null,"abstract":"TiO2/WO3 composite nanofibres were fabricated by electrospinning and calcine. The as-prepared composite nanofibes were characterised by scanning electron microscopy, energy dispersive spectroscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and UV-vis diffuse reflectance spectroscopy, respectively. The results indicated that the TiO2/WO3 composite nanofibres were successfully fabricated, and the H2-generation of the as-fabricated TiO2/WO3 composite nanofibres was significantly enhanced comparing with pure TiO2 nanofibres. The enhanced photocatalytic activities were mainly due to the addition of WO3, which acted as a 'hole collector' leading to effective charge transfer. More importantly, the improvement of photocatalytic activity of TiO2/WO3 composite nanofibres was proved by photocurrent and electrochemical impedance spectroscopy.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"15 1/2","pages":"227-227"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.1504/ijnm.2019.097259","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147891820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Preparation of poly(3-hydroxybutyrateco-3-hydroxyvalerate) supported cobalt phthalocyanine thin membranes and its catalytic degradation of methylene blue 聚（3-羟基丁酸-3-羟基戊酸）负载酞菁钴薄膜的制备及其对亚甲基蓝的催化降解
International Journal of Nanomanufacturing Pub Date : 2019-01-01 DOI: 10.1504/ijnm.2019.097238
Minhong Xu, Haifeng Chen, Guoxiang Pan, Yuhua Guo, Tao Wu
{"title":"Preparation of poly(3-hydroxybutyrateco-3-hydroxyvalerate) supported cobalt phthalocyanine thin membranes and its catalytic degradation of methylene blue","authors":"Minhong Xu, Haifeng Chen, Guoxiang Pan, Yuhua Guo, Tao Wu","doi":"10.1504/ijnm.2019.097238","DOIUrl":"https://doi.org/10.1504/ijnm.2019.097238","url":null,"abstract":"The supported catalyst membranes (CoPc/PHBV) were prepared by solution casting method with tetracarboxyphthalocynine cobalt (CoPc) and poly(3-hydroxybutyrateco-3-hydroxyvalerate) (PHBV). The membranes were characterised by scanning electron microscope, X-ray diffractometer and fourier transform infrared spectroscopy. The results indicate that CoPc and PHBV may be combined by physical, and the crystal structure of PHBV which loaded CoPc is not changed. In addition, the catalytic performances of CoPc/PHBV were evaluated by degradation of methylene blue (MB). The results reveal that CoPc/PHBV and H2O2 have significant synergistic effect on catalytic degradation of MB, and degradation efficiency is 73% after 7 h. Hydroxyl radicals play a key role in catalytic degradation of MB based on the study of reaction mechanism. The dynamics about catalytic oxidation of MB were also explored. The results show that catalytic degradation process fits well with first-order kinetic equation.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"15 1/2","pages":"46-46"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.1504/ijnm.2019.097238","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147901197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simulation of microstructure evolution coupled with fabrication parameters for two-phase ceramic tool materials 两相陶瓷刀具材料微观结构演变与加工参数耦合的模拟
International Journal of Nanomanufacturing Pub Date : 2018-10-04 DOI: 10.1504/IJNM.2018.10016340
B. Fang, Chonghai Xu, G. Xiao
{"title":"Simulation of microstructure evolution coupled with fabrication parameters for two-phase ceramic tool materials","authors":"B. Fang, Chonghai Xu, G. Xiao","doi":"10.1504/IJNM.2018.10016340","DOIUrl":"https://doi.org/10.1504/IJNM.2018.10016340","url":null,"abstract":"A computer simulation coupled with fabrication parameters for the sintering process of two-phase ceramic tool materials has been developed using a two-dimensional hexagon lattice model mapped from ...","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"14 1","pages":"301"},"PeriodicalIF":0.0,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41613496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of cutting parameters on temperature and temperature prediction in micro-milling of Inconel 718 切削参数对Inconel 718微铣削温度及温度预测的影响
International Journal of Nanomanufacturing Pub Date : 2018-10-04 DOI: 10.1504/IJNM.2018.10016347
Xiaohong Lu, Hua Wang, Zhenyuan Jia, Yixuan Feng, S. Liang
{"title":"Effects of cutting parameters on temperature and temperature prediction in micro-milling of Inconel 718","authors":"Xiaohong Lu, Hua Wang, Zhenyuan Jia, Yixuan Feng, S. Liang","doi":"10.1504/IJNM.2018.10016347","DOIUrl":"https://doi.org/10.1504/IJNM.2018.10016347","url":null,"abstract":"Inconel 718 is a kind of typical difficult-to-machine material. Micro-milling technology is an effective method for fabricating micro parts of Inconel 718. The change rules of micro-milling temperature differ from those of the traditional processing, which will affect the surface integrity of the workpiece and the tool life of the micro-milling cutter in different ways. To ascertain the effects of cutting parameters on cutting temperature during micro-milling Inconel 718 and achieve the prediction of cutting temperature, some micro-milling experiments are conducted based on the response surface method. The independent and interaction effects of the spindle speed, feed per tooth and axial cutting depth on cutting temperature are investigated. A micro-milling temperature prediction model is established based on the experiment results. The maximum prediction error is 5.3% and the average prediction error is 2.6%. Finally, the accuracy of the proposed model is validated through experiments of micro-milling Inconel 718.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"14 1","pages":"377"},"PeriodicalIF":0.0,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47410664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Surface microstructure parameter optimisation for enhancing light extraction efficiency of LED 提高LED光提取效率的表面微结构参数优化
International Journal of Nanomanufacturing Pub Date : 2018-10-04 DOI: 10.1504/IJNM.2018.10016344
Dong Yuan, Lin Xianyu, L. Yanguo, Guofu Zhou, Li Nan
{"title":"Surface microstructure parameter optimisation for enhancing light extraction efficiency of LED","authors":"Dong Yuan, Lin Xianyu, L. Yanguo, Guofu Zhou, Li Nan","doi":"10.1504/IJNM.2018.10016344","DOIUrl":"https://doi.org/10.1504/IJNM.2018.10016344","url":null,"abstract":"Surface structure modification is an effective way to enhance light extraction of LED, which is limited by total internal reflection on the interfacial surface. The periodic surface structure manufactured by micromachining was proved to be a feasible way to enhance the light extraction efficiency (LEE) of LEDs. In order to obtain the highest LEE, need to optimise the structural parameters. In this paper, a simplified ray tracing optical model was built to find out a high performance microstructure parameters by simulation. Then, a mathematical model was built to further optimise the optical simulation results, obtained the optimal microstructure parameters for LEE. The performance of optimal microstructure was also studied by optical simulation.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"14 1","pages":"342"},"PeriodicalIF":0.0,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44953238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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