Electronic Materials Letters最新文献

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Recent Advances in Reversible Metal Electrodeposition-Based Smart Windows 基于可逆金属电沉积的智能窗口的最新进展
IF 2.1 4区 材料科学
Electronic Materials Letters Pub Date : 2024-06-22 DOI: 10.1007/s13391-024-00505-z
Gwan Hyeong Lee, Chi Jun An, Hyung Il Lee, Ji Seong Kim, Min Seo Jo, Tae Hoon Ha, Kyungnae Baek, Cheon Woo Moon
{"title":"Recent Advances in Reversible Metal Electrodeposition-Based Smart Windows","authors":"Gwan Hyeong Lee,&nbsp;Chi Jun An,&nbsp;Hyung Il Lee,&nbsp;Ji Seong Kim,&nbsp;Min Seo Jo,&nbsp;Tae Hoon Ha,&nbsp;Kyungnae Baek,&nbsp;Cheon Woo Moon","doi":"10.1007/s13391-024-00505-z","DOIUrl":"10.1007/s13391-024-00505-z","url":null,"abstract":"<div><p>Smart windows are significant for their energy-saving function and visual comfort in our daily lives. This review focuses on the latest advancements in reversible metal electrodeposition (RME) smart window technology, examining related issues primarily in terms of long-term operation, high-contrast, and color neutrality in the privacy state. The electrolyte condition is crucial as it significantly impacts factors like nucleation and growth, Faradaic efficiency of optical cycling, bistability, color neutrality, and repeatability. Overcoming these bottlenecks requires designing an appropriate combination of metal ions and additives in the electrolyte. Although aqueous electrolytes have been predominantly used due to their cost-effectiveness, their narrow electrochemical window has raised concerns for real applications. This limitation would lead to the generation of hydrogen or oxygen gases, potentially damaging smart windows. Recent developments have considered non-aqueous electrolytes as a solution, offering a wider electrochemical window, broader operational temperature ranges, and long-term electrolyte stability. These could be key to overcoming the current challenges in smart windows. This review summarizes recent developments in RME smart windows, addressing their current characteristics, improvements, and limitations to provide insights into future pathways for reversible metal electrodeposition-based smart window development.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 6","pages":"657 - 683"},"PeriodicalIF":2.1,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Co-deposition of Amorphous Carbon and CdS with the Host NiO HMs for Superior Photocatalytic H2 Production via Water Splitting 无定形碳和 CdS 与宿主 NiO HMs 共同沉积,通过水分离实现卓越的光催化 H2 生产
IF 2.1 4区 材料科学
Electronic Materials Letters Pub Date : 2024-06-16 DOI: 10.1007/s13391-024-00503-1
Hanmei Hu, Fang Ye, Tao Wang, Rui Xu, Yibin Zhu, Chonghai Deng
{"title":"Co-deposition of Amorphous Carbon and CdS with the Host NiO HMs for Superior Photocatalytic H2 Production via Water Splitting","authors":"Hanmei Hu,&nbsp;Fang Ye,&nbsp;Tao Wang,&nbsp;Rui Xu,&nbsp;Yibin Zhu,&nbsp;Chonghai Deng","doi":"10.1007/s13391-024-00503-1","DOIUrl":"10.1007/s13391-024-00503-1","url":null,"abstract":"<div><p>Efficient spatial separation of photocarriers is crucial for photocatalyst to achieve superior solar-driven photocatalytic H<sub>2</sub> production via water splitting. In this study, 3D cubic NiO hollow microspheres (HMs) was served as a free-standing supporting matrix for the co-deposition of ultrathin amorphous carbon layer and wurtzite CdS nanoparticles (NPs) to obtain the highly efficient photocatalysis system for H<sub>2</sub> production. The crystal structure, chemical composition, and optical and electric properties of the ternary C@CdS/NiO composite were characterized by various techniques. The results demonstrated that integrated C@CdS/NiO heteroarchitectures with flower-like morphology and double interfacial combinations are successfully constructed through a one-pot microwave heating process. Under simulated solar illumination, the photocatalytic H<sub>2</sub> evolution reaction (HER) efficiency of as-resulting C@CdS/NiO composite reached a remarkable 17.99 mmol∙g<sup>− 1</sup>∙h<sup>− 1</sup>, which was 5.7 and 163.5 times higher than that of binary CdS/NiO hybrid and single CdS, respectively. The photo-electrochemical measurements disclosed that the double interfacial interactions are beneficial for promoting the photoexcited charge carriers separation in space. Specifically, the ultrathin carbon film played multiple roles for achievement of exceptional photocatalytic activity as follows: (i) having increase of the active sites, (ii) promoting light absorption capacity, (iii) accelerating separation and transport of the photocarriers, and (iv) protecting CdS against photocorrosion. This study provides a facial synergistic modification strategy for the construction of noble-metal-free photocatalysts for efficient solar-to-fuel conversion.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 5","pages":"627 - 638"},"PeriodicalIF":2.1,"publicationDate":"2024-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141336308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improving Photocatalytic Activities of LaFeO3 Photocathode by Chromium-Incorporated Nanoparticle 通过加入铬纳米粒子提高 LaFeO3 阴极的光催化活性
IF 2.1 4区 材料科学
Electronic Materials Letters Pub Date : 2024-06-16 DOI: 10.1007/s13391-024-00504-0
Amin Aadenan, Nurul Affiqah Arzaee, Mohamad Firdaus Mohamad Noh, Mohd Norizam Md Daud, Danial Hakim Badrul Hisham, Muhammad Athir Mohamed Anuar, Muslizainun Mustapha, Nurul Aida Mohamed, Mohd Hafiz Ahmad, Mohd Adib Ibrahim, Norasikin Ahmad Ludin, Mohd Asri Mat Teridi
{"title":"Improving Photocatalytic Activities of LaFeO3 Photocathode by Chromium-Incorporated Nanoparticle","authors":"Amin Aadenan,&nbsp;Nurul Affiqah Arzaee,&nbsp;Mohamad Firdaus Mohamad Noh,&nbsp;Mohd Norizam Md Daud,&nbsp;Danial Hakim Badrul Hisham,&nbsp;Muhammad Athir Mohamed Anuar,&nbsp;Muslizainun Mustapha,&nbsp;Nurul Aida Mohamed,&nbsp;Mohd Hafiz Ahmad,&nbsp;Mohd Adib Ibrahim,&nbsp;Norasikin Ahmad Ludin,&nbsp;Mohd Asri Mat Teridi","doi":"10.1007/s13391-024-00504-0","DOIUrl":"10.1007/s13391-024-00504-0","url":null,"abstract":"<div><p>Incorporation of chromium (Cr) nanoparticle onto LaFeO<sub>3</sub> (LFO) photocathode to improve optical and photocatalytic activities have been successfully demonstrated. The plain LFO photocathode was prepared by spin-spray gun deposition, following the Cr-incorporated nanoparticle onto the photocathode by spin coating method. It is observed that the photocathode with the optimal composition of 1.5 mmol Cr nanoparticle enhanced the crystal growth of orthorhombic crystal structure predominantly on (121) orientation with the formation of well-connected crystal grain architecture. The structure demonstrated strong optical absorption and a high current density of -60.52 µA cm<sup>− 2</sup> at -0.5 V (vs. Ag/AgCl) more than twice to the untreated LFO film which recorded a maximum photocurrent of -21.83 µA cm<sup>− 2</sup> at -0.5 V (vs. Ag/AgCl). This subsequently led to suppressed surface recombination, lower charge resistance and good stability in the strong alkaline electrolyte. The enhancement provided that incorporating a transition metal element with plain LFO would be applicable for producing efficient photosensitive devices, particularly for photoelectrochemical (PEC) water splitting applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 6","pages":"775 - 790"},"PeriodicalIF":2.1,"publicationDate":"2024-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141335497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","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 the Number of Graphene Layers and Graphene Diaphragm Size on High Frequency Electrostatic Speakers 石墨烯层数和石墨烯振膜尺寸对高频静电扬声器的影响
IF 2.1 4区 材料科学
Electronic Materials Letters Pub Date : 2024-05-30 DOI: 10.1007/s13391-024-00501-3
Dong-Kwan Lee, Jongchan Yoo, Byung-Ho Kang, Sung-Hoon Park
{"title":"Effects of the Number of Graphene Layers and Graphene Diaphragm Size on High Frequency Electrostatic Speakers","authors":"Dong-Kwan Lee,&nbsp;Jongchan Yoo,&nbsp;Byung-Ho Kang,&nbsp;Sung-Hoon Park","doi":"10.1007/s13391-024-00501-3","DOIUrl":"10.1007/s13391-024-00501-3","url":null,"abstract":"<div><p>Graphene, a promising carbon nanomaterial, has garnered significant attention owing to its chemical stability, exceptional mechanical properties, and remarkable electrical conductivity and is being used in various electrical engineering applications ranging from solar cells to touch screens. The inherent mechanical strength and electric charge capacity of graphene enable efficient designs of diaphragms used in electrostatic loudspeakers, specifically within the high-frequency domain. This study incorporated single-layer and multi-layer graphene sheets, synthesized via chemical vapor deposition, as electrically charged diaphragms in electrostatic loudspeakers paired with an indium tin oxide film electrode to produce Coulomb force. Subsequently, the sound pressure levels of these distinct graphene- based electrostatic loudspeakers were determined through frequency response measurements. Based on our findings, we propose an optimal graphene film configuration for future electrostatic loudspeaker applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 5","pages":"621 - 626"},"PeriodicalIF":2.1,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141196148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation and Comparative Studies on Charge Storage Performance in Nanostructured RuO2, NiO and Co3O4 Nanoparticles for High Dense Energy Storage 用于高密度储能的纳米结构 RuO2、NiO 和 Co3O4 纳米粒子的电荷存储性能调查与比较研究
IF 2.1 4区 材料科学
Electronic Materials Letters Pub Date : 2024-05-24 DOI: 10.1007/s13391-024-00500-4
C. Sambathkumar, K. R. Nagavenkatesh, R. Thangavel, N. Nallamuthu, P. Devendran, K. Rajesh
{"title":"Investigation and Comparative Studies on Charge Storage Performance in Nanostructured RuO2, NiO and Co3O4 Nanoparticles for High Dense Energy Storage","authors":"C. Sambathkumar,&nbsp;K. R. Nagavenkatesh,&nbsp;R. Thangavel,&nbsp;N. Nallamuthu,&nbsp;P. Devendran,&nbsp;K. Rajesh","doi":"10.1007/s13391-024-00500-4","DOIUrl":"10.1007/s13391-024-00500-4","url":null,"abstract":"<div><p>Increasing energy requirement and over energy consumption and further upgrading of energy transfer and storage mechanisms are the critical problem. The supercapacitor is a good candidate for applications requiring high power delivery or uptake. Metal oxides can be effective electrode materials for energy storage devices due to their multiple oxidation states, high theoretical specific capacitance, wide potential window and eco-friendliness. In this connection, here report that electrodes made of notable nanosized transition metal oxides such as Ruthenium oxide (RuO<sub>2</sub>), Nickel oxide (NiO) and Cobalt oxide (Co<sub>3</sub>O<sub>4</sub>) were prepared by simple hydrothermal route and the prepared samples were confirmed through structural, vibrational, morphological, and elemental composition analysis. The modified working electrodes were then examined for electrochemical behavior, including CV, GCD, and EIS studies, using a 1 M KOH electrolyte solution after successive coating of the working material on empty Ni foil. Among them, RuO<sub>2</sub> has high integral area, a low sweep rate and remarkable specific capacitance value of 447.1 Fg<sup>-1</sup> at 5 mVs<sup>-1</sup> in CV analysis. In addition, the GCD curve has good charge-discharge cyclic stability with a maximum specific capacitance of 412.1 Fg<sup>-1</sup> at 0.5 Ag<sup>-1</sup> compared to NiO and Co<sub>3</sub>O<sub>4</sub>. RuO<sub>2</sub> has long charge-discharge stability and only 6.8% loss in capacitive retention compared to the other systems, NiO (11.2%) and Co<sub>3</sub>O<sub>4</sub> (9.3%), even after 10,000 cycles. We except that use of nanosized metal oxide electrodes to enhance electrochemical activity will lead to further improvement in the supercapacitors.</p></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 5","pages":"571 - 583"},"PeriodicalIF":2.1,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141101975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ZIF-Derived Cobalt Sulfides Embedded on Nitrogen-Doped Carbon Frameworks for Efficient Hydrogen Evolution Reaction 嵌入掺氮碳框架的 ZIF 衍生硫化钴,用于高效氢气进化反应
IF 2.1 4区 材料科学
Electronic Materials Letters Pub Date : 2024-05-24 DOI: 10.1007/s13391-024-00502-2
Joon Soo Rhie, Ha Huu Do, Soo Young Kim
{"title":"ZIF-Derived Cobalt Sulfides Embedded on Nitrogen-Doped Carbon Frameworks for Efficient Hydrogen Evolution Reaction","authors":"Joon Soo Rhie,&nbsp;Ha Huu Do,&nbsp;Soo Young Kim","doi":"10.1007/s13391-024-00502-2","DOIUrl":"10.1007/s13391-024-00502-2","url":null,"abstract":"<div><p>The development of efficient and durable catalysts for the hydrogen evolution reaction (HER) is essential for sustainable energy research. Cobalt sulfides (CoS<sub>x</sub>) have attracted significant interest as prospective catalysts for the HER owing to their promising catalytic activity and high stability. In this study, CoS<sub>x</sub> nanocrystals embedded in nitrogen-doped carbon frameworks (NC) are fabricated using a zeolite imidazole framework precursor via a two-step pyrolysis-sulfurization process, followed by combination with carbon black (CB) to create CoS<sub>x</sub>-NC/CB as an efficient electrocatalyst for the HER. Interestingly, this catalyst displays a higher HER activity than that of the investigated materials, with an overpotential of 282 mV at a current density of 10 mA cm<sup>− 2</sup>, along with a Tafel slope of 57.6 mV dec<sup>− 1</sup> in an acidic solution. This performance is attributed to the synergistic effect of CoS<sub>x</sub> nanoparticles, nitrogen-doped carbon, and highly conductive CB, which improves the number of active sites, electron transfer, and electrochemical surface area. This outcome has significant potential for the development of economically viable catalysts for water splitting.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 5","pages":"639 - 647"},"PeriodicalIF":2.1,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141102659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Co2+ Doping on Electrochemical Properties of Nickel Metal Tungstate (NiWO4) Positive Material 掺杂 Co2+ 对金属钨酸镍(NiWO4)正极材料电化学特性的影响
IF 2.1 4区 材料科学
Electronic Materials Letters Pub Date : 2024-05-15 DOI: 10.1007/s13391-024-00493-0
Jing Tang, Hui Xu, Yong Chen, Yuanqiang Zhu
{"title":"Effect of Co2+ Doping on Electrochemical Properties of Nickel Metal Tungstate (NiWO4) Positive Material","authors":"Jing Tang,&nbsp;Hui Xu,&nbsp;Yong Chen,&nbsp;Yuanqiang Zhu","doi":"10.1007/s13391-024-00493-0","DOIUrl":"10.1007/s13391-024-00493-0","url":null,"abstract":"<div><p>Currently, transition metal tungstates are emerging as electroactive materials for supercapacitors due to their excellent electrical conductivity and electrochemical properties. Small amounts of transition metal ions doping can affect the physical and electrical properties of transition metal tungstates. In this study, Co ion-doped NiWO<sub>4</sub> amorphous composites (CNWO) were synthesized using a simple and effective hydrothermal method and utilized as the cathode material for supercapacitors. The structure and electrochemical properties of NiWO<sub>4</sub> and CNWO composites were investigated using various testing techniques. Specifically, when the cobalt ion doping amount is 10%, the corresponding CNWO-10 electrode material exhibits a specific capacitance of 804 F g<sup>−1</sup> at 1 A g<sup>−1</sup>, and at a current density of 10 A g<sup>−1</sup>, the capacitance retention rate reaches 66.7%, demonstrating good rate performance. Additionally, an asymmetric supercapacitor device was constructed using CNWO-10 and activated carbon (AC) as positive and negative materials, respectively. Which could cycle reversibly under a potential window of 2.1 V. The device demonstrates a maximum specific capacitance of 76.5 F g<sup>−1</sup> at 0.5 A g<sup>−1</sup>, and a high energy density of 47 Wh kg<sup>−1</sup> at a power density of 527 W kg<sup>−1</sup>. Furthermore, 96% capacitance cycling stability is maintained after 5500 cycles at a trapezoidal current density. Moreover, the electrical conductivities of NiWO<sub>4</sub> and CNWO-10 samples are 9.01 × 10<sup>–8</sup> S m<sup>−1</sup> and 8.93 × 10<sup>–6</sup> S m<sup>−1</sup>, attributed to the Co ion-doping that can reduce the gap width of the forbidden band to enhance conductivity. These results suggest that CNWO composites can serve as promising high-capacity electrode materials for high-performance supercapacitors in alkaline electrolytes.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 4","pages":"459 - 473"},"PeriodicalIF":2.1,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140975608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Novel Sensor for the Detection of n-Butanol Based on CoMn2O4 Nanoparticles 基于 CoMn2O4 纳米粒子的新型正丁醇检测传感器
IF 2.1 4区 材料科学
Electronic Materials Letters Pub Date : 2024-05-13 DOI: 10.1007/s13391-024-00498-9
Juan Pablo Morán-Lázaro, Maykel Courel-Piedrahita, Alex Guillén-Bonilla, Florentino López-Urías, Héctor Guillén-Bonilla, Víctor Manuel Soto-García, Aldo Palafox-Corona, David Alberto Hernández-Poot
{"title":"A Novel Sensor for the Detection of n-Butanol Based on CoMn2O4 Nanoparticles","authors":"Juan Pablo Morán-Lázaro,&nbsp;Maykel Courel-Piedrahita,&nbsp;Alex Guillén-Bonilla,&nbsp;Florentino López-Urías,&nbsp;Héctor Guillén-Bonilla,&nbsp;Víctor Manuel Soto-García,&nbsp;Aldo Palafox-Corona,&nbsp;David Alberto Hernández-Poot","doi":"10.1007/s13391-024-00498-9","DOIUrl":"10.1007/s13391-024-00498-9","url":null,"abstract":"<div><p>In this paper, we studied the alcohol-sensing properties of CoMn<sub>2</sub>O<sub>4</sub> nanoparticles for the first time. The CoMn<sub>2</sub>O<sub>4</sub> nanoparticles were prepared via a simple microwave-assisted colloidal method using cobalt nitrate, manganese nitrate, dioctyl sulfosuccinate sodium salt, and ethylene glycol as a solvent. Various techniques were used to characterize the structural, morphological, and optical properties of CoMn<sub>2</sub>O<sub>4</sub>. The crystal structure of CoMn<sub>2</sub>O<sub>4</sub> was found after calcination at a temperature of 400 °C. The Raman spectrum showed seven vibrational bands, while the optical absorption spectrum showed three bands, confirming the spinel CoMn<sub>2</sub>O<sub>4</sub>. Morphological analysis revealed that the porous microstructure of CoMn<sub>2</sub>O<sub>4</sub> was composed of nanoparticles with a size distribution of 16 to 58 nm. Gas sensors were fabricated with the CoMn<sub>2</sub>O<sub>4</sub> powders calcined at 400 °C using the brush-coating method, and experimental results showed that CoMn<sub>2</sub>O<sub>4</sub> nanoparticles were more sensitive to <i>n</i>-butanol than isopropanol and ethanol at an operating temperature of 185 °C. The CoMn<sub>2</sub>O<sub>4</sub> sensor showed a response of 6.6 at 50 ppm <i>n</i>-butanol with good stability, reproducibility, and repeatability. The present article provides a new sensing material that could be used as an <i>n</i>-butanol sensor with significant benefits for human health.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 5","pages":"610 - 620"},"PeriodicalIF":2.1,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140938205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Two-Dimensional Leafy Fe/N-Doped Carbon Nanomaterials Derived from Vitamin C-Modified ZIF-L for Efficient Oxygen Reduction Reaction 维生素 C 改性 ZIF-L 衍生的二维叶状 Fe/N 掺杂碳纳米材料用于高效氧还原反应
IF 2.1 4区 材料科学
Electronic Materials Letters Pub Date : 2024-05-08 DOI: 10.1007/s13391-024-00496-x
Yating Zhang, Xiaobo Wang, Meng Chen, Pei He, Zhenghan Kong
{"title":"Two-Dimensional Leafy Fe/N-Doped Carbon Nanomaterials Derived from Vitamin C-Modified ZIF-L for Efficient Oxygen Reduction Reaction","authors":"Yating Zhang,&nbsp;Xiaobo Wang,&nbsp;Meng Chen,&nbsp;Pei He,&nbsp;Zhenghan Kong","doi":"10.1007/s13391-024-00496-x","DOIUrl":"10.1007/s13391-024-00496-x","url":null,"abstract":"<div><p>Oxygen reduction reaction (ORR) is an important half-reaction in various energy devices such as fuel cells. Here, 2D dendritic Fe/N co-doped carbon-based nanosheet composites (L-Fe-CNT@NCS-900) were obtained by high-temperature calcination using ZIF-L generated in the aqueous phase as a precursor and Vitamin C as a modifier. It is found that the catalysts calcined at 900℃ possessed the large specific surface area and the pore size distribution graphs showed a narrow micropore size distribution centered at about 1.8 nm. Furthermore, the Fe-N-C species was detected, which further improved the ORR performance as an active center. Thus, the L-Fe-CNT@NCS-900 calcined at 900 °C achieved the best ORR performance with a half-wave potential (E<sub>1/2</sub>) of 0.85 V, and the hydrogen peroxide yield is only about 4% during the ORR process. Meanwhile, L-Fe-CNT@NCS-900 exhibited outstanding methanol resistance. This work proposes a new strategy for constructing an efficient electrocatalysts for oxygen reduction reaction.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 5","pages":"592 - 602"},"PeriodicalIF":2.1,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140938206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tl3PbI5 Nanocrystals for Ultraviolet Photovoltaics 用于紫外线光伏的 Tl3PbI5 纳米晶体
IF 2.1 4区 材料科学
Electronic Materials Letters Pub Date : 2024-05-04 DOI: 10.1007/s13391-024-00499-8
Wooyeon Kim, Bonkee Koo, Jaeyeon Kim, In Choi, Seongyeon Hwang, Min Jae Ko
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