Pub Date : 2023-06-08DOI: 10.1080/14328917.2023.2222465
I. L. Ikhioya, N. Akpu, E. Onoh, S. Aisida, I. Ahmad, M. Maaza, F. Ezema
{"title":"Enhanced physical properties of nickel telluride metal chalcogenide material with molybdenum dopant","authors":"I. L. Ikhioya, N. Akpu, E. Onoh, S. Aisida, I. Ahmad, M. Maaza, F. Ezema","doi":"10.1080/14328917.2023.2222465","DOIUrl":"https://doi.org/10.1080/14328917.2023.2222465","url":null,"abstract":"","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80951860","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 : 2023-05-21DOI: 10.1080/14328917.2023.2213487
Goda Sreenivasulu Reddy, R. Kalaivanan, R. Uday Kumar, K. K. Krishna Varma
{"title":"Augmenting heat transfer performance in a heat exchanger with CeO2 nanofluids","authors":"Goda Sreenivasulu Reddy, R. Kalaivanan, R. Uday Kumar, K. K. Krishna Varma","doi":"10.1080/14328917.2023.2213487","DOIUrl":"https://doi.org/10.1080/14328917.2023.2213487","url":null,"abstract":"","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"93 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83863653","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 : 2023-05-15DOI: 10.1080/14328917.2023.2212482
Qiong Yao, S. Yu
ABSTRACT A triazine long chain charring agent (TCA) was synthesised using cyanuric chloride, morpholine and anhydrous piperazine. The synthesised TCA was compounded with ammonium polyphosphate (APP) to obtain an intumescent flame retardant (IFR). When the TCA content in the IFR was 35 wt% to 45 wt%, the IFR had good expansion properties. Then, different proportions of IFR were incorporated into polypropylene (PP) to prepare flame retardant PP composites, and the flame retardancy, thermal degradation behaviour and flammability behaviour for PP composites were investigated by limiting oxygen index (LOI), vertical burning test (UL-94) and cone calorimeter test. When 20 wt% of IFR (With TCA 35 wt%) were added into the PP matrix, the composite achieved a V-0 rating for the UL-94 test and its LOI value was increased to 28.8%. Compared with neat PP, peak heat release rate (PHRR) and total heat release (THR) decreased from 827.30(KW·m−2) and 120.48(MJ·m−2) to 210.50(KW·m−2) and 75.08(MJ·m−2).
{"title":"Preparation and characterisation of a triazine structure charring agent and its application in polypropylene","authors":"Qiong Yao, S. Yu","doi":"10.1080/14328917.2023.2212482","DOIUrl":"https://doi.org/10.1080/14328917.2023.2212482","url":null,"abstract":"ABSTRACT A triazine long chain charring agent (TCA) was synthesised using cyanuric chloride, morpholine and anhydrous piperazine. The synthesised TCA was compounded with ammonium polyphosphate (APP) to obtain an intumescent flame retardant (IFR). When the TCA content in the IFR was 35 wt% to 45 wt%, the IFR had good expansion properties. Then, different proportions of IFR were incorporated into polypropylene (PP) to prepare flame retardant PP composites, and the flame retardancy, thermal degradation behaviour and flammability behaviour for PP composites were investigated by limiting oxygen index (LOI), vertical burning test (UL-94) and cone calorimeter test. When 20 wt% of IFR (With TCA 35 wt%) were added into the PP matrix, the composite achieved a V-0 rating for the UL-94 test and its LOI value was increased to 28.8%. Compared with neat PP, peak heat release rate (PHRR) and total heat release (THR) decreased from 827.30(KW·m−2) and 120.48(MJ·m−2) to 210.50(KW·m−2) and 75.08(MJ·m−2).","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"9 1","pages":"537 - 547"},"PeriodicalIF":0.0,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74718098","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 : 2023-05-15DOI: 10.1080/14328917.2023.2212944
S. O. Samuel, Fawei E. James, Zhimwang j. t, Ogherohwo e. p, A. Ekpekpo, I. L. Ikhioya
{"title":"Effect of dopant on the energy bandgap on strontium sulphide doped silver for optoelectronic application","authors":"S. O. Samuel, Fawei E. James, Zhimwang j. t, Ogherohwo e. p, A. Ekpekpo, I. L. Ikhioya","doi":"10.1080/14328917.2023.2212944","DOIUrl":"https://doi.org/10.1080/14328917.2023.2212944","url":null,"abstract":"","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73384895","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 : 2023-05-13DOI: 10.1080/14328917.2023.2213493
I. L. Ikhioya, C. Ugwuoke, F. U. Ochai-Ejeh
{"title":"Optimisation of temperature regulator on spray pyrolysis cobalt selenide doped erbium (CoSe: Er) semiconductor material for photovoltaic application","authors":"I. L. Ikhioya, C. Ugwuoke, F. U. Ochai-Ejeh","doi":"10.1080/14328917.2023.2213493","DOIUrl":"https://doi.org/10.1080/14328917.2023.2213493","url":null,"abstract":"","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73479358","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 : 2023-05-13DOI: 10.1080/14328917.2023.2213492
Wenyan Huang, Haitao Wang, Li Jiang, Hongjun Yang, Qimin Jiang, X. Xue, B. Jiang
ABSTRACT Novel peroxide-initiating monomer with the peroxide group and the polymerizable vinyl double bond was designed and prepared through cheap industrial chemical reactants and facile synthesis. Here, one kind of the peroxide-initiating monomer 2-(tert-butylperoxy)ethyl methacrylate (BPEMA) prepared through three-step simple chemical reactions, using tert-butyl hydroperoxide and 2-bromoethanol as the raw ingredients, which reacted at low temperature and obtained the 2-tert-butyl peroxy ethanol, then esterified with methacryloyl chloride or isobutyryl chloride to obtain the peroxide-initiating monomer 2-(tert-butylperoxy)ethyl methacrylate(BPEMA). The analogue peroxide-initiating compound 2-(tert-butylperoxy)ethyl isobutyrate (BPEIB) was designed and obtained using the same reactions as those employed with BPEMA. The other kind of the peroxide-initiating monomer 2-hydroperoxide ethyl methacrylate (HPEMA). The purity of the three products was determined to be above 95%. Here, develop convenient and effective methods in using peroxide-initiating monomer for the in-depth study on the preparation of branched polymers.
{"title":"Facile synthesis and characterization of peroxy-initiated monomers","authors":"Wenyan Huang, Haitao Wang, Li Jiang, Hongjun Yang, Qimin Jiang, X. Xue, B. Jiang","doi":"10.1080/14328917.2023.2213492","DOIUrl":"https://doi.org/10.1080/14328917.2023.2213492","url":null,"abstract":"ABSTRACT Novel peroxide-initiating monomer with the peroxide group and the polymerizable vinyl double bond was designed and prepared through cheap industrial chemical reactants and facile synthesis. Here, one kind of the peroxide-initiating monomer 2-(tert-butylperoxy)ethyl methacrylate (BPEMA) prepared through three-step simple chemical reactions, using tert-butyl hydroperoxide and 2-bromoethanol as the raw ingredients, which reacted at low temperature and obtained the 2-tert-butyl peroxy ethanol, then esterified with methacryloyl chloride or isobutyryl chloride to obtain the peroxide-initiating monomer 2-(tert-butylperoxy)ethyl methacrylate(BPEMA). The analogue peroxide-initiating compound 2-(tert-butylperoxy)ethyl isobutyrate (BPEIB) was designed and obtained using the same reactions as those employed with BPEMA. The other kind of the peroxide-initiating monomer 2-hydroperoxide ethyl methacrylate (HPEMA). The purity of the three products was determined to be above 95%. Here, develop convenient and effective methods in using peroxide-initiating monomer for the in-depth study on the preparation of branched polymers.","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"14 1","pages":"342 - 347"},"PeriodicalIF":0.0,"publicationDate":"2023-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82062264","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 : 2023-05-12DOI: 10.1080/14328917.2023.2212486
Xiaoli Chen, Zhaoqin Liu, Wenjing Liu
{"title":"Effects of tartaric acid on the structure and corrosion resistance for anodizing films of aerospace aluminium alloys","authors":"Xiaoli Chen, Zhaoqin Liu, Wenjing Liu","doi":"10.1080/14328917.2023.2212486","DOIUrl":"https://doi.org/10.1080/14328917.2023.2212486","url":null,"abstract":"","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79809667","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 : 2023-05-09DOI: 10.1080/14328917.2023.2211791
Yiyang Wang, Li Jiang, Weisheng Meng, Wenyan Huang, Yegang Zhu, Hongjun Yang, Qimin Jiang, X. Xue, B. Jiang
ABSTRACT Phenolic resin modified by triolein was synthesized by a two-step process. First, the modified resin was prepared by electrophilic addition reaction of phenol with triolein in acidic environment, then reacted with formaldehyde. The impact strength of modified phenolic resin increased by19~71% compared to that of pure phenolic resin. The maximum elongation at break of modified phenolic resin was higher by about 271% than that of pure phenolic resin. Toughness of modified phenolic resin was greatly improved through triolein treatment by bringing in the methylene, ester bond and aliphatic long chains. In terms of thermal properties, the addition of triolein has increased Tg of the modified phenolic resin a. The viscosity of phenolic resin also increased significantly by introducing triolein into phenolic resin. The preparation method developed here is simple and easy, which can expand the application of phenolic resin in adhesive production.
{"title":"Study on improving toughness of phenolic resin via introducing triolein during synthesis","authors":"Yiyang Wang, Li Jiang, Weisheng Meng, Wenyan Huang, Yegang Zhu, Hongjun Yang, Qimin Jiang, X. Xue, B. Jiang","doi":"10.1080/14328917.2023.2211791","DOIUrl":"https://doi.org/10.1080/14328917.2023.2211791","url":null,"abstract":"ABSTRACT Phenolic resin modified by triolein was synthesized by a two-step process. First, the modified resin was prepared by electrophilic addition reaction of phenol with triolein in acidic environment, then reacted with formaldehyde. The impact strength of modified phenolic resin increased by19~71% compared to that of pure phenolic resin. The maximum elongation at break of modified phenolic resin was higher by about 271% than that of pure phenolic resin. Toughness of modified phenolic resin was greatly improved through triolein treatment by bringing in the methylene, ester bond and aliphatic long chains. In terms of thermal properties, the addition of triolein has increased Tg of the modified phenolic resin a. The viscosity of phenolic resin also increased significantly by introducing triolein into phenolic resin. The preparation method developed here is simple and easy, which can expand the application of phenolic resin in adhesive production.","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"14 1","pages":"281 - 288"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89269605","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 : 2023-04-24DOI: 10.1080/14328917.2023.2204585
E. Danladi, A. Ichoja, Emmanuel D. Onoja, D. Adepehin, E. E. Onwoke, Ohi M. Ekwu, D. O. Alfred
ABSTRACT Perovskite solar cells (PSCs) have evolved into a viable potential alternative energy source due to their cost-effectiveness and simple fabrication techniques. Despite the immense research interest attracted by PSCs, their rooftop application remains constrained by their low efficiency and hysteretic nature. To address these issues, in this paper, the introduction of silver metallic nanoparticles (AgNPs) with plasmonic effect was achieved by an experimental approach to stimulate the generation and transport of charge carriers, which subsequently results to minimal hysteresis and broadband-enhanced plasmonic devices. Due to the far-field light scattering effect, AgNPs improve the light-trapping of the devices. As a result, electrical characteristics and light absorption are significantly enhanced, leading to broadband increase in photovoltaic performance. With the introduction of one coating cycle of AgNPs, the highest power conversion efficiency (PCE) of the perovskite solar cells increases from a reference value of 4.543 to 10.856%. The fill factor (FF) of such a device was 0.650, the current density (J sc) was 18.998 mA/cm2, and voltage (V oc) was 0.879 V. This device shows an improvement of ~139.0% in PCE, ~61.7% in FF, ~43.7% in J sc and ~2.8% in V oc over the pristine device that lacks AgNPs. The findings of this study contribute to further insight and understanding of plasmonic PSCs by offering useful references and recommendations for PSCs with noble metal NPs incorporation.
{"title":"Broad-band-enhanced and minimal hysteresis perovskite solar cells with interfacial coating of biogenic plasmonic light trapping silver nanoparticles","authors":"E. Danladi, A. Ichoja, Emmanuel D. Onoja, D. Adepehin, E. E. Onwoke, Ohi M. Ekwu, D. O. Alfred","doi":"10.1080/14328917.2023.2204585","DOIUrl":"https://doi.org/10.1080/14328917.2023.2204585","url":null,"abstract":"ABSTRACT Perovskite solar cells (PSCs) have evolved into a viable potential alternative energy source due to their cost-effectiveness and simple fabrication techniques. Despite the immense research interest attracted by PSCs, their rooftop application remains constrained by their low efficiency and hysteretic nature. To address these issues, in this paper, the introduction of silver metallic nanoparticles (AgNPs) with plasmonic effect was achieved by an experimental approach to stimulate the generation and transport of charge carriers, which subsequently results to minimal hysteresis and broadband-enhanced plasmonic devices. Due to the far-field light scattering effect, AgNPs improve the light-trapping of the devices. As a result, electrical characteristics and light absorption are significantly enhanced, leading to broadband increase in photovoltaic performance. With the introduction of one coating cycle of AgNPs, the highest power conversion efficiency (PCE) of the perovskite solar cells increases from a reference value of 4.543 to 10.856%. The fill factor (FF) of such a device was 0.650, the current density (J sc) was 18.998 mA/cm2, and voltage (V oc) was 0.879 V. This device shows an improvement of ~139.0% in PCE, ~61.7% in FF, ~43.7% in J sc and ~2.8% in V oc over the pristine device that lacks AgNPs. The findings of this study contribute to further insight and understanding of plasmonic PSCs by offering useful references and recommendations for PSCs with noble metal NPs incorporation.","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"1 1","pages":"521 - 536"},"PeriodicalIF":0.0,"publicationDate":"2023-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77277548","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 : 2023-04-24DOI: 10.1080/14328917.2023.2204572
Ruqaya Raad, Mustafa Abdallh, E. Yousif, K. Zainulabdeen, A. Ahmed, O. Al-Khazrajy, Muna Bofaroosha, Ali H. Jawad
ABSTRACT Surface functionalization of PMMA by Aminolysis reaction was utilised along with the addition of inorganic photo stabilisers (Zn(II), Ni(II), Cu(II) and Co(II)) to enhance the photostability of PMMA under exposure to UV light. The new polymers were characterised via different spectroscopic techniques. In order to assess the effectiveness of the PMMA films, Tinuvin 622, a commercial photo-stabiliser, was employed to assess the photostabilizing efficiency of our approach. The results have shown that Copper chloride was the most effective photostabilizer, followed by nickel, cobalt, and zinc chloride, in that order.
{"title":"Surface modification of poly(methyl methacrylate)-sulphadiazine complexes as self photostabilizer against Ultraviolet (UV) Irradiation","authors":"Ruqaya Raad, Mustafa Abdallh, E. Yousif, K. Zainulabdeen, A. Ahmed, O. Al-Khazrajy, Muna Bofaroosha, Ali H. Jawad","doi":"10.1080/14328917.2023.2204572","DOIUrl":"https://doi.org/10.1080/14328917.2023.2204572","url":null,"abstract":"ABSTRACT Surface functionalization of PMMA by Aminolysis reaction was utilised along with the addition of inorganic photo stabilisers (Zn(II), Ni(II), Cu(II) and Co(II)) to enhance the photostability of PMMA under exposure to UV light. The new polymers were characterised via different spectroscopic techniques. In order to assess the effectiveness of the PMMA films, Tinuvin 622, a commercial photo-stabiliser, was employed to assess the photostabilizing efficiency of our approach. The results have shown that Copper chloride was the most effective photostabilizer, followed by nickel, cobalt, and zinc chloride, in that order.","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"21 1","pages":"511 - 520"},"PeriodicalIF":0.0,"publicationDate":"2023-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88558230","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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