Pub Date : 2022-12-01DOI: 10.1016/j.nanoms.2021.07.005
Xutao Ning , Dou Tang , Ming Zhang
The fast and high response detection of neurotoxic H2S is of great importance for the environment. In this paper, directly electrospinning technology on the ceramic tube is developed to improve the response of H2S detector based on superlong SnO2 fibers. The submillimeter continuous fibers are deposited directly on ceramic tubes by in-situ electrospinning method and can keep morphology of fibers during calcination. By employing this technology, CuO-doped SnO2 fiber H2S detectors are fabricated, and 10% atom CuO-doped SnO2 H2S detector shows the highest response of 40 toward 1 ppm H2S at 150 °C while the response is only 3.6 for the H2S detector prepared in traditional route. In addition, the in-situ electrospinning H2S detectors show faster response and recovery compared to the H2S detectors fabricated by the conventional way. The high and fast response of H2S detectors based on in-situ electrospinning can be ascribed to the continuous fiber structure and CuO modification. The present in-situ electrospinning technology may provide a new strategy for the development of other gas-detectors and bio-detectors with fast and high response.
{"title":"Directly electrospinning submillimeter continuous fibers on tubes to fabricate H2S detectors with fast and high response","authors":"Xutao Ning , Dou Tang , Ming Zhang","doi":"10.1016/j.nanoms.2021.07.005","DOIUrl":"10.1016/j.nanoms.2021.07.005","url":null,"abstract":"<div><p>The fast and high response detection of neurotoxic H<sub>2</sub>S is of great importance for the environment. In this paper, directly electrospinning technology on the ceramic tube is developed to improve the response of H<sub>2</sub>S detector based on superlong SnO<sub>2</sub> fibers. The submillimeter continuous fibers are deposited directly on ceramic tubes by in-situ electrospinning method and can keep morphology of fibers during calcination. By employing this technology, CuO-doped SnO<sub>2</sub> fiber H<sub>2</sub>S detectors are fabricated, and 10% atom CuO-doped SnO<sub>2</sub> H<sub>2</sub>S detector shows the highest response of 40 toward 1 ppm H<sub>2</sub>S at 150 °C while the response is only 3.6 for the H<sub>2</sub>S detector prepared in traditional route. In addition, the in-situ electrospinning H<sub>2</sub>S detectors show faster response and recovery compared to the H<sub>2</sub>S detectors fabricated by the conventional way. The high and fast response of H<sub>2</sub>S detectors based on in-situ electrospinning can be ascribed to the continuous fiber structure and CuO modification. The present in-situ electrospinning technology may provide a new strategy for the development of other gas-detectors and bio-detectors with fast and high response.</p></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.nanoms.2021.07.005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46346186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rational design of electrocatalysts is important for a sustainable oxygen evolution reaction (OER). It is still a huge challenge to engineer active sites in multi-sizes and multi-components simultaneously. Here, a series of CoxP nanoparticles (NPs) confined in an SiO2 matrix (SiO2/CoxP) is designed and synthesized as OER electrocatalysts. The phosphorization of the hydrolyzed Co-phyllosilicate promotes the formation of ultrasmall and small Co2P and CoP. These are firmly confined in the SiO2 matrix. The coupling of multi-size and multi-component CoxP catalysts can regulate reaction kinetics and electron transfer ability, enrich the active sites, and eventually promote the intrinsic OER activity. The SiO2 matrix provides abundant porous structure and oxygen vacancies, and these facilitate the exposure of active sites and improve conductivity. Because of the synergy and interplay of multi-sized/component CoxP NPs and the porous SiO2 matrix, the unique SiO2/CoxP heterostructure exhibits low overpotential (293 mV@10 mA cm-2), and robust stability (decay 12 mV after 5000 CV cycles, 97.4% of initial current after 100 h chronoamperometric) for the OER process, exceeding many advanced metal phosphide electrocatalysts. This work provides a novel tactic to design low-cost, simple, and highly efficient OER electrocatalysts.
{"title":"Coupling of ultrasmall and small CoxP nanoparticles confined in porous SiO2 matrix for a robust oxygen evolution reaction","authors":"Xiaojun Zeng , Haiqi Zhang , Xiaofeng Zhang , Qingqing Zhang , Yunxia Chen , Ronghai Yu , Martin Moskovits","doi":"10.1016/j.nanoms.2022.03.002","DOIUrl":"https://doi.org/10.1016/j.nanoms.2022.03.002","url":null,"abstract":"<div><p>Rational design of electrocatalysts is important for a sustainable oxygen evolution reaction (OER). It is still a huge challenge to engineer active sites in multi-sizes and multi-components simultaneously. Here, a series of Co<sub><em>x</em></sub>P nanoparticles (NPs) confined in an SiO<sub>2</sub> matrix (SiO<sub>2</sub>/Co<sub>x</sub>P) is designed and synthesized as OER electrocatalysts. The phosphorization of the hydrolyzed Co-phyllosilicate promotes the formation of ultrasmall and small Co<sub>2</sub>P and CoP. These are firmly confined in the SiO<sub>2</sub> matrix. The coupling of multi-size and multi-component Co<sub><em>x</em></sub>P catalysts can regulate reaction kinetics and electron transfer ability, enrich the active sites, and eventually promote the intrinsic OER activity. The SiO<sub>2</sub> matrix provides abundant porous structure and oxygen vacancies, and these facilitate the exposure of active sites and improve conductivity. Because of the synergy and interplay of multi-sized/component Co<sub>x</sub>P NPs and the porous SiO<sub>2</sub> matrix, the unique SiO<sub>2</sub>/Co<sub><em>x</em></sub>P heterostructure exhibits low overpotential (293 mV@10 mA cm<sup>-2</sup>), and robust stability (decay 12 mV after 5000 CV cycles, 97.4% of initial current after 100 h chronoamperometric) for the OER process, exceeding many advanced metal phosphide electrocatalysts. This work provides a novel tactic to design low-cost, simple, and highly efficient OER electrocatalysts.</p></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589965122000174/pdfft?md5=74dfe2acab0cc1590b8a698f9cf2afe2&pid=1-s2.0-S2589965122000174-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72066297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-01DOI: 10.1016/j.nanoms.2022.10.004
Xinyi Wang, Chao Han, Shixue Dou, Weijie Li
{"title":"The protective effect and its mechanism for electrolyte additives on the anode interface in aqueous zinc-based energy storage devices","authors":"Xinyi Wang, Chao Han, Shixue Dou, Weijie Li","doi":"10.1016/j.nanoms.2022.10.004","DOIUrl":"https://doi.org/10.1016/j.nanoms.2022.10.004","url":null,"abstract":"","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46474059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-01DOI: 10.1016/j.nanoms.2022.09.004
Ying Guo, Rong Zhang, Shaoce Zhang, Chunyi Zhi
{"title":"Recent advances in Zn–CO2 batteries for the co-production of electricity and carbonaceous fuels","authors":"Ying Guo, Rong Zhang, Shaoce Zhang, Chunyi Zhi","doi":"10.1016/j.nanoms.2022.09.004","DOIUrl":"https://doi.org/10.1016/j.nanoms.2022.09.004","url":null,"abstract":"","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48658753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-01DOI: 10.1016/j.nanoms.2022.09.001
Jingxi Li, Gemeng Liang, Wei Zheng, Shilin Zhang, K. Davey, W. Pang, Zaiping Guo
{"title":"Addressing cation mixing in layered structured cathodes for lithium-ion batteries: A critical review","authors":"Jingxi Li, Gemeng Liang, Wei Zheng, Shilin Zhang, K. Davey, W. Pang, Zaiping Guo","doi":"10.1016/j.nanoms.2022.09.001","DOIUrl":"https://doi.org/10.1016/j.nanoms.2022.09.001","url":null,"abstract":"","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43164861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-01DOI: 10.1016/j.nanoms.2022.09.003
Yamen Taji, Alexandra Zagalskaya, Iman Evazzade, Sebastian Watzele, K. Song, Song Xue, Christian Schott, Batyr Garlyyev, V. Alexandrov, E. Gubanova, A. Bandarenka
{"title":"Alkali metal cations change the hydrogen evolution reaction mechanisms at Pt electrodes in alkaline media","authors":"Yamen Taji, Alexandra Zagalskaya, Iman Evazzade, Sebastian Watzele, K. Song, Song Xue, Christian Schott, Batyr Garlyyev, V. Alexandrov, E. Gubanova, A. Bandarenka","doi":"10.1016/j.nanoms.2022.09.003","DOIUrl":"https://doi.org/10.1016/j.nanoms.2022.09.003","url":null,"abstract":"","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47831782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-01DOI: 10.1016/j.nanoms.2022.10.001
Peixun Xiong, Jeiwan Tan, H. Lee, Neul Ha, Sang Joon Lee, Wooseok Yang, H. Park
{"title":"Two-dimensional carbon-based heterostructures as bifunctional electrocatalysts for water splitting and metal–air batteries","authors":"Peixun Xiong, Jeiwan Tan, H. Lee, Neul Ha, Sang Joon Lee, Wooseok Yang, H. Park","doi":"10.1016/j.nanoms.2022.10.001","DOIUrl":"https://doi.org/10.1016/j.nanoms.2022.10.001","url":null,"abstract":"","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":null,"pages":null},"PeriodicalIF":9.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45106907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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