Pub Date : 2022-01-01DOI: 10.1016/b978-0-323-90937-2.00006-x
Ayesha Kausar
{"title":"Advances in anti-corrosive coatings of polymer/graphene nanocomposites","authors":"Ayesha Kausar","doi":"10.1016/b978-0-323-90937-2.00006-x","DOIUrl":"https://doi.org/10.1016/b978-0-323-90937-2.00006-x","url":null,"abstract":"","PeriodicalId":63892,"journal":{"name":"石墨烯(英文)","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74746971","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}
Pub Date : 2022-01-01DOI: 10.1016/b978-0-323-90937-2.00007-1
Ayesha Kausar
{"title":"Polymer/graphene nanocomposites as versatile platforms for energy and electronic devices","authors":"Ayesha Kausar","doi":"10.1016/b978-0-323-90937-2.00007-1","DOIUrl":"https://doi.org/10.1016/b978-0-323-90937-2.00007-1","url":null,"abstract":"","PeriodicalId":63892,"journal":{"name":"石墨烯(英文)","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88429023","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}
Pub Date : 2021-01-01DOI: 10.1533/9780857099334.1.27
O. Frank, M. Kalbáč
Abstract: The challenges and recent achievements in the chemical vapor deposition (CVD) production of graphene on nickel and copper substrates are reviewed. The formation of large-area monolayer domains, growth on single crystals and controlled formation of ordered multilayers are discussed in detail. Isotopic labeling is introduced as a tool to perform advanced studies on CVD graphene.
{"title":"Chemical vapor deposition (CVD) growth of graphene films","authors":"O. Frank, M. Kalbáč","doi":"10.1533/9780857099334.1.27","DOIUrl":"https://doi.org/10.1533/9780857099334.1.27","url":null,"abstract":"Abstract: The challenges and recent achievements in the chemical vapor deposition (CVD) production of graphene on nickel and copper substrates are reviewed. The formation of large-area monolayer domains, growth on single crystals and controlled formation of ordered multilayers are discussed in detail. Isotopic labeling is introduced as a tool to perform advanced studies on CVD graphene.","PeriodicalId":63892,"journal":{"name":"石墨烯(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1533/9780857099334.1.27","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67415892","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}
Pub Date : 2021-01-01DOI: 10.4236/graphene.2021.102002
Z. Qu, Josué Ngondo Otshwe
The combustion of MSW contains several species which if liberated into the flue gas will participate in erosion-corrosion reactions with the alloy surface and with the oxide layers. Actually with the evolution of material science and the discovery of 2D materials, we can handle that situation as well as possible. The graphene as 2D material presents a lot of advantage due to it physical properties such: melting point, boiling point and thermal conductivity, which can help to manage the problem of low and middle temperature (100˚C -300˚C) erosion-corrosion into the boiler wall of waste to energy. The aim of the study was focused on analyzing the resistance at low and middle temperature (100˚C - 300˚C) in the enclosed environment and the corrosion-erosion resistance abilities of the graphene sheet as the 2D protective coating material. This paper analyzed the possibility of using the graphene in the aggressive environment which is waste to energy boiler. The results obtained from this study after simulation using ANSYS software which is one of the best software for simulations showed that Graphene protects the furnace walls against corrosion-erosion for temperatures lower than 400˚C and that in the presence of certain impurities such as: sodium (Na), sulfur (S), chloride (Cl) and Phosphorous (P), Sodium Chloride (NaCl), Hydrogen Chloride Dioxide Carbone 2 ) of Sulfur 2
{"title":"2D Materials as Protective Coating against Low and Middle Temperature (100?C - 300?C) Corrosion-Erosion in Waste to Energy Plant: Case of Graphene","authors":"Z. Qu, Josué Ngondo Otshwe","doi":"10.4236/graphene.2021.102002","DOIUrl":"https://doi.org/10.4236/graphene.2021.102002","url":null,"abstract":"The combustion of MSW contains several species which if liberated into the flue gas will participate in erosion-corrosion reactions with the alloy surface and with the oxide layers. Actually with the evolution of material science and the discovery of 2D materials, we can handle that situation as well as possible. The graphene as 2D material presents a lot of advantage due to it physical properties such: melting point, boiling point and thermal conductivity, which can help to manage the problem of low and middle temperature (100˚C -300˚C) erosion-corrosion into the boiler wall of waste to energy. The aim of the study was focused on analyzing the resistance at low and middle temperature (100˚C - 300˚C) in the enclosed environment and the corrosion-erosion resistance abilities of the graphene sheet as the 2D protective coating material. This paper analyzed the possibility of using the graphene in the aggressive environment which is waste to energy boiler. The results obtained from this study after simulation using ANSYS software which is one of the best software for simulations showed that Graphene protects the furnace walls against corrosion-erosion for temperatures lower than 400˚C and that in the presence of certain impurities such as: sodium (Na), sulfur (S), chloride (Cl) and Phosphorous (P), Sodium Chloride (NaCl), Hydrogen Chloride Dioxide Carbone 2 ) of Sulfur 2","PeriodicalId":63892,"journal":{"name":"石墨烯(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70614628","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}
Pub Date : 2021-01-01DOI: 10.4236/graphene.2021.104004
A. A. El-Barbary, Mohammed Ahmed Alkhateeb
We have investigated the high capacity of Selenium atom (Se) doped nanocones surfaces as hydrogen storage systems. Hydrogen is a clean source of energy and it is derived from diverse domestic and sustainable resources. Hence, it can use as a viable alternative to fossil fuels. Therefore, the hydrogen storage on pure and doped Se-CNCs, BNNCs and SiCNCs was studied by density functional theory (DFT) method. The obtained results show that the lowest adsorption energy and the highest surface reactivity are −31.03 eV and 39.73 Debye for Se-Si 34 C 41 H 9 -M1 with disclination angle 300˚, respectively. Therefore, one can conclude that the doped Se-SiCNCs are good candidate for hydrogen storage. This finding was also confirmed by using the molecular orbital analysis. It is found that doping NCs with Se atom results in increasing the electron density around the Se atom and leading to increase the hydrogen storage capacity. The new understanding of highly efficient hydrogen storage for doped Se-SiCNCs, will be useful for the future synthesis of nan-cones with high performance for H 2 energy storage.
我们研究了高容量的硒原子(Se)掺杂纳米锥表面作为储氢系统。氢是一种清洁能源，可从国内多种可持续资源中提取。因此，它可以作为化石燃料的可行替代品。因此，采用密度泛函理论(DFT)方法研究了纯和掺杂Se-CNCs、BNNCs和SiCNCs的储氢性能。结果表明，当偏角为300˚时，Se-Si 34 C 41 H 9 -M1的最低吸附能为- 31.03 eV，最高表面反应活性为39.73 Debye。因此，可以得出结论，掺杂的Se-SiCNCs是储氢的良好候选者。分子轨道分析也证实了这一发现。结果表明，在纳米碳化硅中掺杂Se原子可以提高纳米碳化硅Se原子周围的电子密度，从而提高纳米碳化硅的储氢能力。对掺杂Se-SiCNCs高效储氢的新认识，将有助于未来合成具有高性能氢储能性能的纳米锥。
{"title":"DFT Study of Se-Doped Nanocones as Highly Efficient Hydrogen Storage Carrier","authors":"A. A. El-Barbary, Mohammed Ahmed Alkhateeb","doi":"10.4236/graphene.2021.104004","DOIUrl":"https://doi.org/10.4236/graphene.2021.104004","url":null,"abstract":"We have investigated the high capacity of Selenium atom (Se) doped nanocones surfaces as hydrogen storage systems. Hydrogen is a clean source of energy and it is derived from diverse domestic and sustainable resources. Hence, it can use as a viable alternative to fossil fuels. Therefore, the hydrogen storage on pure and doped Se-CNCs, BNNCs and SiCNCs was studied by density functional theory (DFT) method. The obtained results show that the lowest adsorption energy and the highest surface reactivity are −31.03 eV and 39.73 Debye for Se-Si 34 C 41 H 9 -M1 with disclination angle 300˚, respectively. Therefore, one can conclude that the doped Se-SiCNCs are good candidate for hydrogen storage. This finding was also confirmed by using the molecular orbital analysis. It is found that doping NCs with Se atom results in increasing the electron density around the Se atom and leading to increase the hydrogen storage capacity. The new understanding of highly efficient hydrogen storage for doped Se-SiCNCs, will be useful for the future synthesis of nan-cones with high performance for H 2 energy storage.","PeriodicalId":63892,"journal":{"name":"石墨烯(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70614861","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}
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