ACS Applied Energy Materials最新文献

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Low-Cost Magnesium-Based Thermoelectric Materials: Progress, Challenges, and Enhancements 低成本镁基热电材料:进展、挑战和改进
IF 6.4 3区 材料科学
ACS Applied Energy Materials Pub Date : 2024-07-09 DOI: 10.1021/acsaem.4c00961
Zhenxue Zhang, Mikdat Gurtaran, Hanshan Dong
{"title":"Low-Cost Magnesium-Based Thermoelectric Materials: Progress, Challenges, and Enhancements","authors":"Zhenxue Zhang, Mikdat Gurtaran, Hanshan Dong","doi":"10.1021/acsaem.4c00961","DOIUrl":"https://doi.org/10.1021/acsaem.4c00961","url":null,"abstract":"Magnesium-based thermoelectric (TE) materials have attracted considerable interest due to their high ZT values, coupled with their low cost, widespread availability, nontoxicity, and low density. In this review, we provide a succinct overview of the advances and strategies pertaining to the development of Mg-based materials aimed at enhancing their performance. Following this, we delve into the major challenges posed by the severe working conditions, such as high temperature and thermal cycling, which adversely impact the behavior and long-term stability of the TE modules. Challenges include issues like the lack of mechanical strength, chemical instability, and unreliable contact. Subsequently, we focus on the key methodologies aimed at addressing these challenges to facilitate the broader application of the TE modules. These include boosting the mechanical strength, especially the toughness, through grain refining and additions of second phases. Furthermore, strategies targeted at enhancing the chemical stability through coatings and modifying the microstructure, as well as improving the contact design and materials, are discussed. In the end, we highlight the perspectives for boosting the practical applications of Mg-based TE materials in the future.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141575602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Relative Simulation Analysis of Cadmium Sulfide (CdS) and Tin Sulfide (SnS2) As a Buffer Layer in CuInSe2-Based Thin Film Solar Cell 硫化镉(CdS)和硫化锡(SnS2)作为铜铟硒(CuInSe2)薄膜太阳能电池缓冲层的相对模拟分析
IF 6.4 3区 材料科学
ACS Applied Energy Materials Pub Date : 2024-07-08 DOI: 10.1021/acsaem.4c00621
Bharati M. Sakunde, Nandu B. Chaure, Sandesh R. Jadkar, Habib M. Pathan
{"title":"Relative Simulation Analysis of Cadmium Sulfide (CdS) and Tin Sulfide (SnS2) As a Buffer Layer in CuInSe2-Based Thin Film Solar Cell","authors":"Bharati M. Sakunde, Nandu B. Chaure, Sandesh R. Jadkar, Habib M. Pathan","doi":"10.1021/acsaem.4c00621","DOIUrl":"https://doi.org/10.1021/acsaem.4c00621","url":null,"abstract":"Chalcopyrite I–III–VI2-based solar cells include CuInSe<sub>2</sub> material, which is one of the inordinate chalcopyrites. Observation of the relationship between the input variable parameters and output parameters for the CISe<sub>2</sub>-based solar cell is studied by SCAPS-1D software. This study covers a Mo/CISe<sub>2</sub>/CdS/ZnO/Al–Ni solar cell with the Al–Ni composite layer as a front metal contact. Mo/CISe<sub>2</sub>/SnS<sub>2</sub>/ZnO/Al–Ni heterojunction solar cell was used in the next simulation. SnS<sub>2</sub> material was used instead of the CdS layer because of its properties like environmental friendly element, flexible bandgap, nontoxicity, and large natural abundance. The shallow uniform density parameter is simulated or optimized for the absorber layer (CuInSe<sub>2</sub>) and the ZnO layer. The shallow uniform donor density and the thickness were optimized for the SnS<sub>2</sub> layer. Also, a comparative optical study was performed for both the CdS layer and the SnS<sub>2</sub> layer in the CISe<sub>2</sub> solar cell. In this paper, the CISe<sub>2</sub> solar cell with a CdS layer obtained a fill factor (FF) of 84.85%, an optimal photoelectric conversion efficiency (Eff) of 20.60%, an open circuit voltage (<i>V</i><sub>oc</sub>) of 0.78 V, and a short circuit current density (<i>J</i><sub>sc</sub>) of 30.98 mA/cm<sup>2</sup>, and that with an SnS<sub>2</sub> layer obtained a fill factor (FF) of 85.22%, efficiency (Eff) of 20.84%, open circuit voltage (<i>V</i><sub>oc</sub>) of 0.78 V, and short circuit current density (<i>J</i><sub>sc</sub>) of 31.19 mA/cm<sup>2</sup>. The outcomes obtained by these numerical calculations are helpful in the development of high-efficiency solar cells.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141575604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Integration of Hydrated Antimony Pentoxide in Poly(vinylidene fluoride) Films for Enhanced Energy Storage and Harvesting 在聚偏二氟乙烯薄膜中整合水合五氧化二锑,以增强能量存储和收集功能
IF 6.4 3区 材料科学
ACS Applied Energy Materials Pub Date : 2024-07-08 DOI: 10.1021/acsaem.3c03277
Vishwa Pratap Singh, Akhilesh Kumar Singh
{"title":"Integration of Hydrated Antimony Pentoxide in Poly(vinylidene fluoride) Films for Enhanced Energy Storage and Harvesting","authors":"Vishwa Pratap Singh, Akhilesh Kumar Singh","doi":"10.1021/acsaem.3c03277","DOIUrl":"https://doi.org/10.1021/acsaem.3c03277","url":null,"abstract":"We delineate the synthesis and characterization of a nanocomposite film with a poly(vinylidene fluoride) (PVDF) polymer matrix and hydrated antimony pentoxide (HAP) as the conducting filler. The Sb<sub>2</sub>O<sub>3</sub> powder was hydroxylated to enhance its proton conductivity and reactivity as a filler in a PVDF matrix because after hydroxylation Sb<sub>2</sub>O<sub>3</sub> converts into HAP having H<sub>3</sub>O<sup>+</sup> and H<sup>+</sup>. The formation of proton-conducting HAP was confirmed by using X-ray diffraction (XRD) analysis. The nanocomposite films were synthesized through a solution-casting process and characterized using XRD, Fourier transform infrared spectroscopy, and field-emission scanning electron microscopy analysis. The dielectric permittivity of the nanocomposite film with an 8% filler loading was found to be 27.86, which is significantly higher than that of pure PVDF (9.56). The polarization of the nanocomposite film was also increased to 2.91 μC/cm<sup>2</sup> with an 8% filler loading compared to 1.11 μC/cm<sup>2</sup> for pure PVDF. The breakdown strength of the developed films was calculated using Weibull analysis. The energy density of the developed nanocomposite film was found to be 1.59 J/cm<sup>3</sup> at an electric field of 1400 kV/cm, which is significantly enhanced compared to 0.66 J/cm<sup>3</sup> for pure PVDF. The piezoelectric response of the polymer nanocomposite film is also improved with the increasing filler concentration. These results demonstrate the potential of the developed nanocomposite films as high-energy-density storage materials for capacitors.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141575603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Simultaneous Improvement in Photovoltaic Performance and Air Stability of Perovskite Solar Cells by Controlling Molecular Orientation of Spiro-OMeTAD 通过控制螺-OMeTAD 的分子取向同时提高过氧化物太阳能电池的光伏性能和空气稳定性
IF 6.4 3区 材料科学
ACS Applied Energy Materials Pub Date : 2024-07-06 DOI: 10.1021/acsaem.3c03021
Nuttaya Sukgorn, Anusit Kaewprajak, Sasiphapa Rodbuntum, Navaphun Kayunkid, Nopporn Rujisamphan, Chatree Saiyasombat, Kouki Akaike, Pisist Kumnorkaew
{"title":"Simultaneous Improvement in Photovoltaic Performance and Air Stability of Perovskite Solar Cells by Controlling Molecular Orientation of Spiro-OMeTAD","authors":"Nuttaya Sukgorn, Anusit Kaewprajak, Sasiphapa Rodbuntum, Navaphun Kayunkid, Nopporn Rujisamphan, Chatree Saiyasombat, Kouki Akaike, Pisist Kumnorkaew","doi":"10.1021/acsaem.3c03021","DOIUrl":"https://doi.org/10.1021/acsaem.3c03021","url":null,"abstract":"2,2′,7,7′-Tetrakis (<i>N</i>,<i>N</i>-di-<i>p</i>-methoxyphenyl-amine)9,9′-spirobifluorene (Spiro-OMeTAD) is a prototypical hole transport layer (HTL) for high-performance perovskite solar cells (PSCs). Since the electric conductivity of a neat Spiro-OMeTAD film is low, the HTL is generally doped with additives to increase charge density and mobility. However, the doped Spiro-OMeTAD film suffers from moisture absorption, which deteriorates the long-term stability of PSCs. This work reports that the molecular orientation of Spiro-OMeTAD molecules in the doped HTL is vital to solving this issue. Templating the molecular arrangement of Spiro-OMeTAD by a solidifying solvent, 1,3,5-trichlorobenzene (135-TCB), forms an anisotropic film of the doped Spiro-OMeTAD and induces a face-on orientation along the surface normal. Modifying the molecular orientation enhances hole mobility in the HTL and extraction of holes at the perovskite/HTL interface. As a result, the maximum power conversion efficiency (PCE) of the PSCs increases from 17.63 to 19.92%. Besides, the air stability of the PSCs with the face-on Spiro-OMeTAD, after storage for 1000 h, is superior to that of the devices without templating the molecular arrangement of Spiro-OMeTAD by 135-TCB. Control of the molecular orientation of Spiro-OMeTAD is critical for improving PCE and air stability.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141575605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Ordered Mesoporous Slippery Silica Coatings on Photovoltaic Cover Glasses to Enhance Photocurrent with Sustainability for Large-Scale Applications 光伏盖板玻璃上的有序介孔滑石二氧化硅涂层可增强光电流,实现大规模应用的可持续性
IF 6.4 3区 材料科学
ACS Applied Energy Materials Pub Date : 2024-07-05 DOI: 10.1021/acsaem.4c00774
Goutam De, Srikrishna Manna, Samar Kumar Medda
{"title":"Ordered Mesoporous Slippery Silica Coatings on Photovoltaic Cover Glasses to Enhance Photocurrent with Sustainability for Large-Scale Applications","authors":"Goutam De, Srikrishna Manna, Samar Kumar Medda","doi":"10.1021/acsaem.4c00774","DOIUrl":"https://doi.org/10.1021/acsaem.4c00774","url":null,"abstract":"The performance of photovoltaic solar modules deteriorates quickly under ambient conditions due to the accumulation of dirt and biofouling on the surface of cover glasses. We have designed robust ordered mesoporous silica-based slippery (OMSS) coatings on photovoltaic cover glasses (PVCGs) with a quasi-random ripple-like top surface morphology to further decrease solar light reflection and ease cleaning for long-term use. OMSS coatings on such PVCGs showed year-round climatic sustainability and a significant increase in the photocurrent of the modules with excellent durability, confirmed by long-term outdoor use and ASTM testing. The average top surface reflection and overall transmission of the OMSS-coated PVCG decreased and increased to 3.5% and 4%, respectively, in the wavelength region of 380–2000 nm. Accordingly, the photocurrent increased by about 4.1% under 1 sun (100 mW cm<sup>–2</sup>) conditions. The water-repellent slippery nature of the OMSS coating was confirmed by its high water contact angle (123 ± 3°) and low hysteresis (10 ± 2°) values. Outdoor testing of a series of OMSS-coated PV modules with dimensions of 640 × 640 mm<sup>2</sup>, each fabricated with 36 Si-solar cells, showed an increase of ∼6.7–10.5% power compared to the modules without coatings. The improved performance under ambient conditions is due to the combined effect of the antireflection and anti-dirt properties of the OMSS coatings. The PV modules installed on the rooftop of CSIR-CCGRI were monitored for ∼3 years with a cleaning schedule of once a month by water-flushing and were found to perform without any deterioration of power due to the robust and durable structural design of the OMSS coating.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141575607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Optimization of Power Factor for a Screen-Printed Silver Selenide-Based Flexible Thermoelectric Film by Hot Pressing 通过热压优化丝网印刷硒化银柔性热电薄膜的功率因数
IF 6.4 3区 材料科学
ACS Applied Energy Materials Pub Date : 2024-07-05 DOI: 10.1021/acsaem.4c00740
Lida Jia, Wenjing Ai, Jie Gao, Jia-Chen Guo, Hui Ruan, Lei Miao, Chengyan Liu
{"title":"Optimization of Power Factor for a Screen-Printed Silver Selenide-Based Flexible Thermoelectric Film by Hot Pressing","authors":"Lida Jia, Wenjing Ai, Jie Gao, Jia-Chen Guo, Hui Ruan, Lei Miao, Chengyan Liu","doi":"10.1021/acsaem.4c00740","DOIUrl":"https://doi.org/10.1021/acsaem.4c00740","url":null,"abstract":"Screen printing is a promising technology to realize the large-scale production of flexible thermoelectric films, and Ag<sub>2</sub>Se is considered as the upcoming generation of room-temperature <i>N</i>-type thermoelectric materials that can substitute <i>N</i>-type Bi<sub>2</sub>Te<sub>3</sub>-based alloys. However, since the reported screen-printed Ag<sub>2</sub>Se-based flexible films were not properly sintered, their thermoelectric performance is far from satisfactory. In this work, hot pressing technology is applied to sinter the nylon-supported flexible Ag/Ag<sub>2</sub>Se thermoelectric films, and the carrier transport characteristics and power factor of the films were optimized by adjusting the hot pressing pressure and duration. For the film hot-pressed with 40 MPa and 10 min, a high power factor of 3002.14 μWm<sup>–1</sup>K<sup>–2</sup> has been achieved at 303 K. This film also shows an excellent flexibility, and with a bending radius of 1.5 cm, the internal resistance of the film changes little after being bent 500 times. This work provides a feasible idea for improving the thermoelectric performance of Ag<sub>2</sub>Se-based films prepared by screen printing.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141575606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
ACS Publications and the ACS Energy and Fuels (ENFL) Division Request Nominations for Two Energy Lectureship Awards 美国化学学会出版物和美国化学学会能源与燃料分会(ENFL)征集两项能源讲座奖提名
IF 6.4 3区 材料科学
ACS Applied Energy Materials Pub Date : 2024-07-05 DOI: 10.1021/acsaem.4c01674
Prashant V. Kamat, Gerald J. Meyer, Hongwei Wu
{"title":"ACS Publications and the ACS Energy and Fuels (ENFL) Division Request Nominations for Two Energy Lectureship Awards","authors":"Prashant V. Kamat, Gerald J. Meyer, Hongwei Wu","doi":"10.1021/acsaem.4c01674","DOIUrl":"https://doi.org/10.1021/acsaem.4c01674","url":null,"abstract":"Nominations are requested for two Energy Lectureship Awards that have been made possible through a joint multiyear collaborative initiative between ACS Publications and the ACS Energy and Fuels (ENFL) Division. The two Awards recognize distinguished contributions from an early career and a midcareer investigator on energy relevant research and development that address the world’s clean energy challenges. The selection of the Award winners rotates between these three ACS journals that focus on energy science: <i>ACS Energy Letters</i>, <i>ACS Applied Energy Materials</i>, and <i>Energy &amp; Fuels</i> (Figure 1). The specific topic for the 2025 Energy Lectureship will be <b>Solar Energy Conversion</b> in conjunction with ENFL and <i>ACS Applied Energy Materials</i>. The 2024 Energy Lecture Awards ceremony will be held during the ACS Spring 2025 Meeting in San Diego, CA (https://www.acs.org/meetings/acs-meetings/future-meetings.html). Figure 1. Two annual Energy Lectureship Awards will rotate between <i>ACS Applied Energy Materials</i> (2025), <i>Energy &amp; Fuels</i> (2026), and <i>ACS Energy Letters</i> (2027). The topic for the 2025 Award is <i><b>Solar Energy Conversion</b></i>, and the nomination deadline is August 22, 2024. An Award will be presented in each of the following categories: Outstanding early career investigator conducting research in solar energy conversion. Outstanding midcareer investigator conducting research in solar energy conversion. “Early career researcher” is defined as a graduate student, post doc, or practicing scientist no more than 10 years from receipt of their Ph.D. “Mid-career researcher” is defined as a practicing scientist up to 20 years (but preferably between 10 to 20 years). The nominees should have demonstrated outstanding research through their published work in solar energy conversion with a suggested emphasis on papers published in <i>ACS Applied Energy Materials</i>, <i>Energy &amp; Fuels</i>, and/or <i>ACS Energy Letters</i>. Please refer to the ENFL Division Web site, https://enfl.aps.anl.gov/awards/energy-lectureship, for eligibility criteria and the nomination process for the 2025 Energy Lectureship Award in Solar Energy Conversion. The nomination deadline is August 22, 2024. We recognize the significant contributions made by our authors to the success of our journals, <i>ACS Energy Letters</i>, <i>ACS Applied Energy Materials</i>, and <i>Energy &amp; Fuels</i>. These awards provide an opportunity to recognize the contributions of researchers of our energy community. Please submit your nomination using the above link. The award committee is looking forward to your nominations. This article has not yet been cited by other publications. Figure 1. Two annual Energy Lectureship Awards will rotate between <i>ACS Applied Energy Materials</i> (2025), <i>Energy &amp; Fuels</i> (2026), and <i>ACS Energy Letters</i> (2027). The topic for the 2025 Award is <i><b>Solar Energy Conversion</b></i>, and the nominat","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141575681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Correction to “Efficient Visible Light Photocatalytic Hydrogen Evolution by Boosting the Interfacial Electron Transfer in Mesoporous Mott–Schottky Heterojunctions of Co2P-Modified CdIn2S4 Nanocrystals” 对 "通过促进 Co2P 改性 CdIn2S4 纳米晶体介孔 Mott-Schottky 异质结中的界面电子转移实现高效可见光光催化氢气转化 "的更正
IF 6.4 3区 材料科学
ACS Applied Energy Materials Pub Date : 2024-07-03 DOI: 10.1021/acsaem.4c01594
Evangelos K. Andreou, Ioannis Vamvasakis, Gerasimos S. Armatas
{"title":"Correction to “Efficient Visible Light Photocatalytic Hydrogen Evolution by Boosting the Interfacial Electron Transfer in Mesoporous Mott–Schottky Heterojunctions of Co2P-Modified CdIn2S4 Nanocrystals”","authors":"Evangelos K. Andreou, Ioannis Vamvasakis, Gerasimos S. Armatas","doi":"10.1021/acsaem.4c01594","DOIUrl":"https://doi.org/10.1021/acsaem.4c01594","url":null,"abstract":"In our original article, the following Funding statement was added: The open access publishing of this article is financially supported by HEAL-Link. This article has not yet been cited by other publications.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Multiphase Heterostructure Engineering and Theorical Aspects of a Hierarchical Nanostructure NiFe-NS/NiMoO4 Array Enabling Efficient Oxygen Evolution Reaction in Alkaline Media 促进碱性介质中高效氧气进化反应的分层纳米结构 NiFe-NS/NiMoO4 阵列的多相异质结构工程学和理论研究
IF 6.4 3区 材料科学
ACS Applied Energy Materials Pub Date : 2024-07-03 DOI: 10.1021/acsaem.4c00299
Qirun Wang, Wenjue Li, Zhenyu Zhang, Xiaowei Xu, Jichao Shi, Lin Lin, Dandan Wu, Sheng Han, Runping Jia, Shufang Chang
{"title":"Multiphase Heterostructure Engineering and Theorical Aspects of a Hierarchical Nanostructure NiFe-NS/NiMoO4 Array Enabling Efficient Oxygen Evolution Reaction in Alkaline Media","authors":"Qirun Wang, Wenjue Li, Zhenyu Zhang, Xiaowei Xu, Jichao Shi, Lin Lin, Dandan Wu, Sheng Han, Runping Jia, Shufang Chang","doi":"10.1021/acsaem.4c00299","DOIUrl":"https://doi.org/10.1021/acsaem.4c00299","url":null,"abstract":"The design of multiphase heterostructures presents a promising strategy for oxygen evolution reaction (OER) and serves as an effective approach to constructing efficient alkaline OER catalysts. In this paper, the OER catalyst with a NiFe-NS/NiMoO<sub>4</sub> layered heterostructure was synthesized by reflux condensation and hydrothermal methods. The unique rock-like nanospheres can increase the specific surface area and provide more active sites. The formation of heterojunctions through the modification of NiFe nanospheres on NiMoO<sub>4</sub> nanorods can induce changes in their electronic structure. Due to its inherent properties, NiFe-NS/NiMoO<sub>4</sub> demonstrates higher performance than commercial RuO<sub>2</sub> (which has an overpotential of 228 mV at a current density of 10 mA cm<sup>–2</sup>), with overpotentials of 196 and 294 mV at current densities of 10 and 100 mA cm<sup>–2</sup>, respectively. The stability of the sample was proved to be excellent during a 50 h stability test. Density functional theory (DFT) calculations also indicate that the improved efficiency of the OER can be attributed to controlling and adjusting of the electron structure through heterojunction formation as well as the collaborative impact resulting from NiFe and NiMoO<sub>4</sub>. The structure enables optimized adsorption of intermediates and facilitates the kinetics of OER, and provides an idea for the design of heterogeneous catalysts.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Optimally Generated Active Sites on Nanostructured Nickel Sulfide Electrocatalysts for Designing Economical Electrolyzers 在纳米结构硫化镍电催化剂上优化生成活性位点以设计经济型电解器
IF 6.4 3区 材料科学
ACS Applied Energy Materials Pub Date : 2024-07-03 DOI: 10.1021/acsaem.4c00851
Mohamed Khairy, Xiao Liu, Zhi Long
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