Nanomaterials and Energy最新文献_第3页

Tapered substrate thickness to enhance the performance of piezoelectric energy harvester 锥形基板厚度可提高压电能量采集器的性能

IF 1.1

Nanomaterials and Energy Pub Date : 2022-12-01 DOI: 10.1680/jnaen.22.00038

Ashutosh Anand, Manish Kumar

引用次数: 0

Impact of metal doping and codoping on the electrical and optical behavior of tin oxide nano particles 金属掺杂和共掺杂对氧化锡纳米粒子电学和光学行为的影响

IF 1.1

Nanomaterials and Energy Pub Date : 2022-12-01 DOI: 10.1680/jnaen.23.00010

Regin Das Thankaian, Meena Muthukrishnan, S. M. K. Thiagamani, S. Siengchin, S. Rangappa

{"title":"Impact of metal doping and codoping on the electrical and optical behavior of tin oxide nano particles","authors":"Regin Das Thankaian, Meena Muthukrishnan, S. M. K. Thiagamani, S. Siengchin, S. Rangappa","doi":"10.1680/jnaen.23.00010","DOIUrl":"https://doi.org/10.1680/jnaen.23.00010","url":null,"abstract":"Metal oxide semiconductors (MOS) with distinctive optical and electrical properties are required by the modern electronics industry. In this research it was found that doping of transition and rare-earth metals is suitable for tuning the optical bandgap and dielectric parameters of SnO2 Nanoparticles to meet the requirement for high conductive semiconductors Via one-step hydrothermal synthesis Doping of Sm causes SnO2NP to have a narrower bandgap (2.54 eV) than pure SnO2NPs (3.36 eV), and increased conductivity at higher frequencies and temperature, which is crucial for the potential applications like light-emitting diodes, biological labels, optoelectronic devices, and other technologies. The particle size of the doped and co-doped sample was found to be smaller than pure SnO2 which effectively pronounced the quantum confinement effect in these metal oxides. Co-doping of Sm-Cu ions in the SnO2 lattice was done for the first time to increase the dielectric strength, with absorption shift towards visible blue region suggest the use of this particular sample for photocatalytic application.","PeriodicalId":44365,"journal":{"name":"Nanomaterials and Energy","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41822206","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

Valorising waste PET bottles into Li-ion battery anodes using ionothermal carbonisation 利用离子热碳化技术将废弃PET瓶转化为锂离子电池阳极

IF 1.1

Nanomaterials and Energy Pub Date : 2022-12-01 DOI: 10.1680/jnaen.22.00047

C. N. Onwucha, C. Ehi-Eromosele, S. Ajayi, T. Siyanbola, K. O. Ajanaku

{"title":"Valorising waste PET bottles into Li-ion battery anodes using ionothermal carbonisation","authors":"C. N. Onwucha, C. Ehi-Eromosele, S. Ajayi, T. Siyanbola, K. O. Ajanaku","doi":"10.1680/jnaen.22.00047","DOIUrl":"https://doi.org/10.1680/jnaen.22.00047","url":null,"abstract":"Waste PET bottles (WPB) is fast becoming an environmental nuisance and its valorization to carbon anode could be a sustainable method to manage this waste and also develop cheap and high-performance carbon materials for Li-ion batteries (LIBs). Carbonaceous materials derived from WPB were prepared using an ionothermal carbonization (ITC) method in choline chloride urea-deep eutectic solvent system. The ITC-derived materials were subsequently annealed in air to obtain carbonaceous materials. The ITC-derived carbon displayed ultra-high nitrogen doping but lesser carbonization and graphitic ordering compared to the reference carbon material obtained using hydrothermal carbonization (HTC). Therefore, higher temperature annealing/pyrolysis was recommended for the ITC-derived carbon. The HTC-derived carbon was investigated as anode material in LIB with promising electrochemical performance. The LIB displayed stable reversible capacity of about 130 mAh/g at a current density of 0.1 A/g after 20 cycles and an increasing Coulombic efficiency that reached 98% after the 50th cycle. This work shows that a facile and sustainable synthesis method could be used to produce PET-derived activated carbons with potential applications in energy storage systems such as LIBs.","PeriodicalId":44365,"journal":{"name":"Nanomaterials and Energy","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46247233","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

Optical properties of 2D pristine and doped Janus WSSe using first principles study 使用第一性原理研究2D原始和掺杂Janus WSSe的光学性质

IF 1.1

Nanomaterials and Energy Pub Date : 2022-12-01 DOI: 10.1680/jnaen.22.00028

M. Srivastava, B. P. Pandey, N. Mishra, D. Kumar, V. Tomar, Santosh Kumar

{"title":"Optical properties of 2D pristine and doped Janus WSSe using first principles study","authors":"M. Srivastava, B. P. Pandey, N. Mishra, D. Kumar, V. Tomar, Santosh Kumar","doi":"10.1680/jnaen.22.00028","DOIUrl":"https://doi.org/10.1680/jnaen.22.00028","url":null,"abstract":"The paper explores electronic (optical) properties of pristine and p-type doped (B, Al, Ga) WSSe monolayer (ML) through first principle calculation. In the electronic properties, total density of states (TDOS) and band gap are investigated which confirms the magnetic attributes induced after doping of p-type (B, Al, Ga) materials in the system. Further, the optical properties are extracted for the studied system in terms of dielectric function (real (ε1), imaginary (ε2)), absorption index (α) and refractive index (n) systematically. The real part of ε1 is showing negative values which means to opaque for light through that region. The imaginary part of ε2 shows that B-doped WSSe ML is a probable aspirant with higher light absorbing capacity along with the absorption index shows the peaks align in the ultraviolet (UV) range for both pristine and p-type doped system dominating in the absorption spectrum. The refractive index (n) is investigated, and the peaks located in the UV region. Again, the B-doped system has the maximum value and is in trend with the reported results. Thus, the optical properties study of p-type doped system concludes that B-doped system is more suitable for designing of optoelectronic devices.","PeriodicalId":44365,"journal":{"name":"Nanomaterials and Energy","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49348390","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

Low-temperature synthesis of lead-free Cs2AgBiBr6 double perovskite ink 低温合成无铅Cs2AgBiBr6双钙钛矿油墨

IF 1.1

Nanomaterials and Energy Pub Date : 2022-12-01 DOI: 10.1680/jnaen.23.00004

I. Sharma, Hemant Gulupalli, Saanjh Thada, Satyam Jain, R. K. Goyal, Kunal Borse

引用次数: 0

Annealing effects on NiO nanoparticles for magnetic behaviour and antibacterial activity studies 退火对NiO纳米颗粒磁性和抗菌活性的影响

IF 1.1

Nanomaterials and Energy Pub Date : 2022-06-01 DOI: 10.1680/jnaen.22.00002

S. Sivakumar, Yengkokpam Robinson

引用次数: 2

Opportunities for thermoelectric generators in supporting a low carbon economy 热电发电机支持低碳经济的机会

IF 1.1

Nanomaterials and Energy Pub Date : 2022-06-01 DOI: 10.1680/jnaen.22.00033

M. R. A. Bhuiyan, Hayati Mamur, Ömer Faruk Dilmaç, Mehmet Ali Üstüner

{"title":"Opportunities for thermoelectric generators in supporting a low carbon economy","authors":"M. R. A. Bhuiyan, Hayati Mamur, Ömer Faruk Dilmaç, Mehmet Ali Üstüner","doi":"10.1680/jnaen.22.00033","DOIUrl":"https://doi.org/10.1680/jnaen.22.00033","url":null,"abstract":"Environmental pollution, global warming and increasing energy demands are urgent challenges facing society. Governments all over the world have set a national policy target for the transition to a zero or low carbon dioxide economy. As a result, scientists and engineers in industry and academia are working to develop cleaner, alternative and sustainable energy production technologies. One technology that has potential in this green technology transition is thermoelectric generators (TEGs), traditionally used off-grid and isolated from things such as stand-alone solar–thermal cells for military and aerospace applications such as missile-testing systems and space telescope cameras. However, future applications based on home entertainment, security systems and smart metering applications are imminent. Key limitations to this are low efficiency, high costs and self-heating with low thermal conductivity. Hence, this study aims to examine the current state of the art of TEGs and identify future research directions to achieve support for the green technology transition. The key findings of this study show that present successes will fulfill the future advancement of thermoelectric technology by supporting a low carbon dioxide economy.","PeriodicalId":44365,"journal":{"name":"Nanomaterials and Energy","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44991535","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

Nd modified BaSn oxide composite nanorods and their photocatalytic activity toward gentian violet Nd改性BaSn氧化物复合纳米棒及其对龙胆紫的光催化活性

IF 1.1

Nanomaterials and Energy Pub Date : 2022-06-01 DOI: 10.1680/jnaen.22.00049

Qianmin Cong, Chenxu Feng, F. Tao, Jiong Zhou, Xiaoyu Wang, L. Pei

{"title":"Nd modified BaSn oxide composite nanorods and their photocatalytic activity toward gentian violet","authors":"Qianmin Cong, Chenxu Feng, F. Tao, Jiong Zhou, Xiaoyu Wang, L. Pei","doi":"10.1680/jnaen.22.00049","DOIUrl":"https://doi.org/10.1680/jnaen.22.00049","url":null,"abstract":"Nd modified BaSn oxide composite nanorods (NdBSCNRs) with different Nd contents were synthesized by an in-situ photo-deposition process. The composite nanorods were characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, solid diffuse reflectance spectrum, electrochemical impedance spectroscopy and photoluminescence spectra. The composite nanorods consist of monoclinic BaSn(OH)6, orthorhombic SnO2, monoclinic Ba(OH)2, cubic Nd2O3 and hexagonal Nd phases. The composite nanorods with the diameter of 50-150 nm and poly-crystalline structure are covered with the nanoparticles in the size of about 50 nm. Comparing with the BSCNRs, the band gap of the NdBSCNRs decreases to 3.34 eV increasing the light absorption ability. The NdBSCNRs exhibit enhanced photocatalytic performance towards gentian violet (GV) under ultraviolet (UV) light illumination owing to Nd modification. The photocatalytic activity of the NdBSCNRs is closely relative to the dosage of the composite nanorods and Nd content. The reaction rate constant k value of the NdBSCNRs for GV degradation increases obviously with the highest k value (0.037 min−1) which is 7.4 times of that (0.005 min−1) of the BSCNRs. Superoxide ion radicals, hydroxyl radicals and holes are the main reactive species, and the NdBSCNRs are stable and recoverable for the GV degradation.","PeriodicalId":44365,"journal":{"name":"Nanomaterials and Energy","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47070844","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

The Role of ZnO Nanoparticles in Water Supply and Drainage of Ecological Buildings ZnO纳米粒子在生态建筑给排水中的作用

IF 1.1

Nanomaterials and Energy Pub Date : 2022-03-01 DOI: 10.1680/jnaen.21.00020

Li-Gyu Song

引用次数: 0

Research progress of La2Mo2O9-based oxide-ion conductor electrolyte materials La2Mo2O9基氧化物离子导体电解质材料的研究进展

IF 1.1

Nanomaterials and Energy Pub Date : 2022-03-01 DOI: 10.1680/jnaen.21.00010

Jie Yang, Yajun Wang, Biao Yang, C. Tian, Yang Liu, Lei Yang

引用次数: 1