Advanced Sustainable Systems最新文献

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Assessing the Stability and Photocatalytic Efficiency of a Biodegradable PLA-TiO2 Membrane for Air Purification 评估用于空气净化的可生物降解聚乳酸-二氧化钛膜的稳定性和光催化效率
IF 7.1 3区 材料科学
Advanced Sustainable Systems Pub Date : 2024-09-18 DOI: 10.1002/adsu.202400594
Hadis Mortazavi Milani, Brent Van Neste, Ewoud Cosaert, Dirk Poelman
{"title":"Assessing the Stability and Photocatalytic Efficiency of a Biodegradable PLA-TiO2 Membrane for Air Purification","authors":"Hadis Mortazavi Milani, Brent Van Neste, Ewoud Cosaert, Dirk Poelman","doi":"10.1002/adsu.202400594","DOIUrl":"https://doi.org/10.1002/adsu.202400594","url":null,"abstract":"The potential of a biodegradable polylactic acid (PLA)-TiO<sub>2</sub> membrane for air purification is investigated, utilizing the environmentally friendly solvent Cyrene. Through the integration of TiO<sub>2</sub> nanoparticles within a PLA matrix, the membrane is used to degrade ethanol as a model volatile organic compound (VOC) under UV light. Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Analysis (EDX), and UV–vis spectrophotometry confirm the porous structure of the membrane, the even distribution of TiO<sub>2,</sub> and its effective band gap of 3.06 eV, respectively. Ethanol adsorption is best described by the Langmuir isotherm model, suggesting monolayer coverage on a homogeneous surface. Photocatalytic tests demonstrate that the membrane decomposes ethanol (6800 ppm) within 14 min under UV light, generating acetaldehyde, acetic acid, formaldehyde, and formic acid as intermediates, and ultimately producing CO<sub>2</sub> and water. Reusability tests indicate a decrease in decomposition time over successive cycles due to increased TiO<sub>2</sub> exposure from the gradual degradation of PLA. However, this degradation poses challenges for continuous use, compromising the membrane's long-term durability.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"28 1","pages":""},"PeriodicalIF":7.1,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266085","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
A Lithium-Oxygen Battery Exploiting Carbon Nanotubes, Graphene and Gold Catalyst 利用碳纳米管、石墨烯和金催化剂的锂氧电池
IF 6.5 3区 材料科学
Advanced Sustainable Systems Pub Date : 2024-09-18 DOI: 10.1002/adsu.202400381
Stanislav Levchenko, Giacomo Valente, Jusef Hassoun
{"title":"A Lithium-Oxygen Battery Exploiting Carbon Nanotubes, Graphene and Gold Catalyst","authors":"Stanislav Levchenko,&nbsp;Giacomo Valente,&nbsp;Jusef Hassoun","doi":"10.1002/adsu.202400381","DOIUrl":"10.1002/adsu.202400381","url":null,"abstract":"<p>Lithium-oxygen (Li-O<sub>2</sub>) battery is considered a high-energy alternative to Li-ion one due its characteristic electrochemical conversion process, with the additional advantage of lower cost and environmental impact. However, this emerging battery still requires an enhancement of stability and lifespan to allow its use as a practical energy storage system. In this work we investigate an electrode material benefitting of multiwalled carbon nanotubes (MWCNTs), few layer graphene (FLG), and gold nano-powder catalyst to improve the Li-O<sub>2</sub> battery performances in terms of energy efficiency, cycle life and stability. Morphological, structural, and electrochemical tests indicate that the composite electrode can actually boost the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), and enhance the Li-O<sub>2</sub> process reversibility, with a capacity of 1000 mAh g<sup>−1</sup> over 70 cycles. On the other hand, the tests reveal the role of the gold in decreasing the polarization and increasing the cell life. Therefore, the results suggest the combination of carbons with various morphologies as a suitable architecture for hosting the Li-O<sub>2</sub> reaction products and allowing their reversible reaction. On the other hand, the results highlight the necessity for a better tuning the noble metal characteristics to further enhance the cell performances.</p>","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 12","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsu.202400381","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced Piezocatalytic Water Splitting by Platinum-Decorated Barium Titanate 铂装饰钛酸钡增强压电催化水分离功能
IF 6.5 3区 材料科学
Advanced Sustainable Systems Pub Date : 2024-09-17 DOI: 10.1002/adsu.202400265
Guru Prasanna Ganapathi Subramaniam, Matthew Billing, Hoang-Duy P. Nguyen, Nguyen-Phuong Nguyen, Bao-Ngoc T. Le, Seonghyeok Park, Sanjayan Sathasivam, Thuy-Phuong T. Pham, Steve Dunn
{"title":"Enhanced Piezocatalytic Water Splitting by Platinum-Decorated Barium Titanate","authors":"Guru Prasanna Ganapathi Subramaniam,&nbsp;Matthew Billing,&nbsp;Hoang-Duy P. Nguyen,&nbsp;Nguyen-Phuong Nguyen,&nbsp;Bao-Ngoc T. Le,&nbsp;Seonghyeok Park,&nbsp;Sanjayan Sathasivam,&nbsp;Thuy-Phuong T. Pham,&nbsp;Steve Dunn","doi":"10.1002/adsu.202400265","DOIUrl":"10.1002/adsu.202400265","url":null,"abstract":"<p>Piezocatalysis has emerged as a promising field of research that uses mechanical energy to drive a chemical change. There is growing evidence that piezocatalysts can perform challenging chemical conversions from organic transformations to water splitting. A key challenge to piezocatlaysis is mitigating the inherent high relative permittivity of a ferroelectric material. This high permittivity restricts the transfer of carriers required for a chemical reaction to occur and reduces the reaction rate. Here the concept of producing a co-catalyst system is taken to enhance carrier mobility increasing the observed reaction rate. The study highlights the importance of determining the sonochemical and piezocatalytic contributions to catalysis. The combination of a Pt metal co-catalyst with BaTiO<sub>3</sub> through a simple solid-state method led to a four fold increase in the rate of H<sub>2</sub> production compared to BaTiO<sub>3</sub> and sonochemical reactions in the absence of a catalyst. BaTiO<sub>3</sub>/Pt is found to exhibit stable piezocatalytic performance over 12 h. Where there is a deviation from steady-state water splitting, it is shown that this is due to mechanical removal of Pt rather than a phase change in the catalyst system. This work confirms the additive benefits of hybrid materials for improving piezocatalytic processes.</p>","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 12","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsu.202400265","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hybrid Powder-Based Additive Manufacturing of Laser-Induced Graphene 3D Architectures with Tunable Porous Microstructures from Waste Sources of Black Liquor and White Pollution 基于混合粉末的激光诱导石墨烯三维结构增材制造技术,从黑酒和白色污染的废物来源中获得可调多孔微结构
IF 6.5 3区 材料科学
Advanced Sustainable Systems Pub Date : 2024-09-16 DOI: 10.1002/adsu.202400565
Yan Gao, Yanan Wang, Yujie Cao, Yajie Hu, Guantao Wang, Mingguang Han, Sida Luo
{"title":"Hybrid Powder-Based Additive Manufacturing of Laser-Induced Graphene 3D Architectures with Tunable Porous Microstructures from Waste Sources of Black Liquor and White Pollution","authors":"Yan Gao,&nbsp;Yanan Wang,&nbsp;Yujie Cao,&nbsp;Yajie Hu,&nbsp;Guantao Wang,&nbsp;Mingguang Han,&nbsp;Sida Luo","doi":"10.1002/adsu.202400565","DOIUrl":"10.1002/adsu.202400565","url":null,"abstract":"<p>Macroscopic 3D-controllable graphene (3D-CG) architectures not only retain the intrinsic properties of graphene sheets but also exhibit structural advantages for pollutant adsorption and energy storage. This paper proposes a novel hybrid powder-based additive manufacturing method to fabricate 3D biomass-derived laser-induced graphene (3D B-LIG) structures with customizable geometries and microporous features. This method utilizes two waste sources as feedstock precursors for sustainable graphene production: “black liquor” (sodium lignosulfonate, NaLS) and “white pollution” (polypropylene, PP). Employing a computer-aided design process, this method allows for the synchronous creation of various freeform macrostructures, with either identical or variable sections. To optimize the formability and processing efficiency of 3D B-LIG, systematic studies have been conducted. These studies establish the relationship between processing parameters and the resulting structures by controlling the laser parameters and the mixing ratio of NaLS and PP. By leveraging tunable microporous structures with a maximized specific surface area of 485.3 m<sup>2</sup> g<sup>−1</sup>, 3D B-LIG demonstrates exceptional performance in pollutant adsorption (with a maximum adsorption capacity of 283.3 mg g<sup>−1</sup> for methylene blue) and energy storage (with a gravimetric specific capacitance value of 194.9 F g<sup>−1</sup>).</p>","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 12","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266346","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
Enhancement of Ionic Transport at the Interface of LLZTO by Using Lithium Borohydride Ammoniates 使用硼氢化氨锂增强 LLZTO 界面的离子传输
IF 7.1 3区 材料科学
Advanced Sustainable Systems Pub Date : 2024-09-15 DOI: 10.1002/adsu.202400428
Yijiao Wang, Peng Liu, Shuo Wang, Zhan Xin, Miao Yu, Caiting Yuan, Pingting He, Yingtong Lv, Tengfei Zhang
{"title":"Enhancement of Ionic Transport at the Interface of LLZTO by Using Lithium Borohydride Ammoniates","authors":"Yijiao Wang, Peng Liu, Shuo Wang, Zhan Xin, Miao Yu, Caiting Yuan, Pingting He, Yingtong Lv, Tengfei Zhang","doi":"10.1002/adsu.202400428","DOIUrl":"https://doi.org/10.1002/adsu.202400428","url":null,"abstract":"Garnetbased all-solid-state electrolytes are promising because of their wide electrochemical window and high ionic conductivity. However, the preparation process for garnet-based solid-state electrolytes is complex, requiring a high sintering temperature (&gt;1050 °C) and a long sintering time (&gt;10 h), which results in poor contact with the electrode. In this work, hydride coating modification can effectively improve the interface contact of oxide particles and enhance the ability of ion conduction. Hence, a series of composite electrolytes Li<sub>6.4</sub>La<sub>3</sub>Zr<sub>1.4</sub>Ta<sub>0.6</sub>O<sub>12</sub>-xwt%Li(NH<sub>3</sub>)<sub>0.2</sub>BH<sub>4</sub> (LLZTO-xwt%LNB, 0≤x≤30) is synthesized at Room temperature (RT), in which hydrides uniformly coat and fill in the pores of LLZTO to provide lithium-ion transport channels. At 30 °C, the conductivity of LLZTO-10wt%Li(NH<sub>3</sub>)<sub>0.2</sub>BH<sub>4</sub> (LLZTO-10wt%LNB, 2.3 × 10<sup>−4</sup> S cm<sup>−1</sup>) is four orders higher than pristine untreated LLZTO (8.7 × 10<sup>−8</sup> S cm<sup>−1</sup>), and two orders higher than pristine Li(NH<sub>3</sub>)<sub>0.2</sub>BH<sub>4</sub> (1.3 × 10<sup>−6</sup> S cm<sup>−1</sup>). The critical current density reaches up to 3 mA cm<sup>−2</sup>, demonstrating excellent stability against lithium. These strategies positively impact the development and application of solid-state electrolytes.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"49 1","pages":""},"PeriodicalIF":7.1,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266347","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
Introducing Hydrogen Bond Networks in the Self-Assembly of Chitin Nanocrystals: Strong and Flexible Bioactive Films Containing Natural Polyphenols 在甲壳素纳米晶体的自组装中引入氢键网络:含有天然多酚的强韧柔韧生物活性薄膜
IF 6.5 3区 材料科学
Advanced Sustainable Systems Pub Date : 2024-09-13 DOI: 10.1002/adsu.202400389
Daniele Massari, Massimo Sgarzi, Matteo Gigli, Claudia Crestini
{"title":"Introducing Hydrogen Bond Networks in the Self-Assembly of Chitin Nanocrystals: Strong and Flexible Bioactive Films Containing Natural Polyphenols","authors":"Daniele Massari,&nbsp;Massimo Sgarzi,&nbsp;Matteo Gigli,&nbsp;Claudia Crestini","doi":"10.1002/adsu.202400389","DOIUrl":"10.1002/adsu.202400389","url":null,"abstract":"<p>Free-standing, highly transparent and flexible films are obtained from solvent casting of aqueous colloidal dispersions of surface-deacetylated chitin nanocrystals. The Young's modulus and the water absorption of the films is further modulated by the addition of three natural polyphenols, i.e., epigallocatechingallate, tannic acid and one lignosulfonate, which differ one another in terms of molecular weight, and overall amount of hydroxy, phenolic and catecholic functionalities. The polyphenolic molecules create an extensive network of hydrogen bonds with the nanocrystals, thus controlling interfacial interactions. Therefore, they act as crosslinkers exerting a reinforcing and structuring action and hampering water absorption. The films do not show dissolution in water upon 7 days of incubation at room temperature, and the release profiles of the polyphenols in aqueous media evidence hindered Fickian diffusion kinetics confirming the presence of interactions with the nanostructured matrix. Lastly, the developed films possess bioactive properties, as they show both radical scavenging and antimicrobial activity. These characteristics are enhanced by the phenolic and, most importantly, catecholic moieties present in tannins (and to a lesser extent in lignins), allowing to reach bactericidal effects as high as 99.99% against both Gram-positive and Gram-negative strains.</p>","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 12","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsu.202400389","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultra‐Durability and Reversible Capacity of Silicon Anodes with Crosslinked Poly‐BIAN Binder in Lithium‐Ion Secondary Batteries for Sturdy Performance 在锂离子二次电池中使用交联聚-BIAN 粘结剂的硅阳极的超耐久性和可逆容量可实现稳定性能
IF 7.1 3区 材料科学
Advanced Sustainable Systems Pub Date : 2024-09-12 DOI: 10.1002/adsu.202400263
Agman Gupta, Rajashekar Badam, Bharat Srimitra Mantripragada, Sameer Nirupam Mishra, Noriyoshi Matsumi
{"title":"Ultra‐Durability and Reversible Capacity of Silicon Anodes with Crosslinked Poly‐BIAN Binder in Lithium‐Ion Secondary Batteries for Sturdy Performance","authors":"Agman Gupta, Rajashekar Badam, Bharat Srimitra Mantripragada, Sameer Nirupam Mishra, Noriyoshi Matsumi","doi":"10.1002/adsu.202400263","DOIUrl":"https://doi.org/10.1002/adsu.202400263","url":null,"abstract":"With a high theoretical gravimetric capacity of 3579 mAhg<jats:sup>−1</jats:sup>, silicon (Si) has made a promising claim as an alternative to graphite (372 mAhg<jats:sup>−1</jats:sup>) in lithium‐ion battery (LIB) anodes as an active material. Unfortunately, inherent failure mechanisms (pulverization, delamination, promoting thick interphase formation, and non‐conducting nature) of Si anodes have plagued their way toward commercialization. To stabilize Si anodes, this work reports the design, synthesis, and application of a conducting/crosslinked poly(BIAN) (P‐BIAN) as a polymer binder for Si anodes. Theoretical evaluation of crosslinked P‐BIAN and electrochemical characterization of anodic half‐cells show that the crosslinked P‐BIAN exhibits its versatility by a) administering mechanical robustness to stabilize Si particles, b) undergoing n‐doping owing to the low‐lying lowest unoccupied molecular orbital (LUMO) to tailor a thin solid‐electrolyte interphase (SEI), and c) maintaining electrical conductivity. This inspired Si anodes to show a high reversible capacity of ≈2500 mAhg<jats:sup>−1</jats:sup> for over 1000 cycles with 99.1% capacity retention at 500 mAg<jats:sup>−1</jats:sup> current‐rate.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 1","pages":""},"PeriodicalIF":7.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142191547","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
Thermal Stability and Moisture Resistance of Bitumen Composites Modified with Triglyceride Plant Oils 用甘油三酯植物油改性的沥青复合材料的热稳定性和防潮性
IF 6.5 3区 材料科学
Advanced Sustainable Systems Pub Date : 2024-09-12 DOI: 10.1002/adsu.202400328
Albert M. Hung, Sanad Aldagari, Luis Torres Figueroa, Huachun Zhai, Elham H. Fini
{"title":"Thermal Stability and Moisture Resistance of Bitumen Composites Modified with Triglyceride Plant Oils","authors":"Albert M. Hung,&nbsp;Sanad Aldagari,&nbsp;Luis Torres Figueroa,&nbsp;Huachun Zhai,&nbsp;Elham H. Fini","doi":"10.1002/adsu.202400328","DOIUrl":"10.1002/adsu.202400328","url":null,"abstract":"<p>This paper examines the chemical characteristics of four plant-derived bio-oils, including waste cooking oils, to address a research gap concerning their effects on the thermal stability and moisture susceptibility of asphalt. While bio-oils are known to soften asphalt, their specific impact on these properties is less understood. The study evaluates four different bio-oils (B1–B4) derived from various waste vegetable sources to determine their influence on asphalt performance. The findings indicate that bio-oils with higher purity and lower polyunsaturated fatty acid content offer better resistance to heat and UV-induced degradation. Bio-oils with lower iodine values also show improved resistance to moisture damage. Notably, bitumen composites containing bio-oil B2 do not negatively affect asphalt's moisture resistance, while others increase its moisture susceptibility. Tests with liquid anti-strip agents reveal that silanes and amine-based agents are the most effective at reducing moisture damage. These results underscore the importance of selecting bio-oils with low acid and iodine values, low polyunsaturated fatty acid content, and high purity for use in asphalt. This study supports sustainability and resource conservation by recommending bio-oils that preserve the durability of bio-modified asphalts.</p>","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 12","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224786","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
Bifunctional PtCu Nanooctahedrons for the Electrochemical Conversion of Nitrite and Sulfion Into Value-Added Products 将亚硝酸盐和硫磺电化学转化为增值产品的双功能铂铜纳米八面体
IF 6.5 3区 材料科学
Advanced Sustainable Systems Pub Date : 2024-09-12 DOI: 10.1002/adsu.202400542
Qing-Ling Hong, Wei Zhong, Kai-Yue He, Bin Sun, Xuan Ai, Xue Xiao, Yu Chen, Bao Yu Xia
{"title":"Bifunctional PtCu Nanooctahedrons for the Electrochemical Conversion of Nitrite and Sulfion Into Value-Added Products","authors":"Qing-Ling Hong,&nbsp;Wei Zhong,&nbsp;Kai-Yue He,&nbsp;Bin Sun,&nbsp;Xuan Ai,&nbsp;Xue Xiao,&nbsp;Yu Chen,&nbsp;Bao Yu Xia","doi":"10.1002/adsu.202400542","DOIUrl":"10.1002/adsu.202400542","url":null,"abstract":"<p>The electrochemical reduction of nitrite (NO<sub>2</sub><sup>−</sup>) contaminants to ammonia (NH<sub>3</sub>) is a sustainable and energy-saving strategy for NH<sub>3</sub> synthesis. However, this multi-electron reduction process requires an efficient electrocatalyst to overcome the kinetic barrier. Herein, the Pt<sub>2</sub>Cu<sub>1</sub> nanooctahedrons are synthesized through a liquid-phase chemical reduction process. The synergistic effect of bimetallic Pt and Cu sites in the Pt<sub>2</sub>Cu<sub>1</sub> nanooctahedrons is indispensable for accelerated NO<sub>2</sub><sup>−</sup> hydrogenation, originating from the strong hydrogen-atoms adsorption capacity at Pt site and the strong NO<sub>2</sub><sup>−</sup> adsorption capacity at Cu site. Specifically, the introduction of Pt sites can accelerate the accumulation of hydrogenated species on the catalyst surface, which promotes the formation of NH<sub>3</sub>. In 0.5 <span>m</span> Na<sub>2</sub>SO<sub>4</sub> solution, the Pt<sub>2</sub>Cu<sub>1</sub> nanooctahedrons can reduce NO<sub>2</sub><sup>−</sup> to NH<sub>3</sub> at a yield of 4.22 mg h<sup>−1</sup>mg<sub>cat</sub><sup>−1</sup> and a Faraday efficiency of 95.5% at a potential of −0.14 V versus RHE. Meanwhile, the Pt<sub>2</sub>Cu<sub>1</sub> nanooctahedrons also exhibit excellent activity for the sulfion oxidation reaction (SEOR). Using Pt<sub>2</sub>Cu<sub>1</sub> nanooctahedrons as bifunctional electrocatalyst, a coupled electrolysis system combining the nitrite electrochemical reduction reaction (NO<sub>2</sub><sup>−</sup>ERR) with the SEOR requires only 0.3 V total voltage, enabling energy-saving electrochemical NH<sub>3</sub> production and collective value-added recovery of nitrite and sulfion waste.</p>","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 12","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224784","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
Interface Stability of Sulfide/PVDF-HFP Solid Composite Electrolyte with High Voltage NMC Cathode 硫化物/PVDF-HFP 固体复合电解质与高压 NMC 阴极的界面稳定性
IF 6.5 3区 材料科学
Advanced Sustainable Systems Pub Date : 2024-09-12 DOI: 10.1002/adsu.202400313
Sharmin Akter, Xiaolin Guo, William Arnold, Arjun K. Thapa, Arnob Dey, Peter Quesada, James Wu, Hui Wang
{"title":"Interface Stability of Sulfide/PVDF-HFP Solid Composite Electrolyte with High Voltage NMC Cathode","authors":"Sharmin Akter,&nbsp;Xiaolin Guo,&nbsp;William Arnold,&nbsp;Arjun K. Thapa,&nbsp;Arnob Dey,&nbsp;Peter Quesada,&nbsp;James Wu,&nbsp;Hui Wang","doi":"10.1002/adsu.202400313","DOIUrl":"10.1002/adsu.202400313","url":null,"abstract":"<p>Solid composite electrolytes (SCEs) have attracted serious attention for solid-state Li metal batteries. In particular, SCEs that incorporate inorganic sulfide into polymer electrolytes provide a feasible approach to address the air sensitivity and (electro)chemical instability of sulfides. Nevertheless, there is still little research on pairing sulfide-SCEs with high-voltage cathodes. In this work, reports on efforts to synthesize and compare SCEs that embedding sulfides (Li<sub>7</sub>PS<sub>6</sub> and Li<sub>3</sub>PS<sub>4</sub>) into PVDF/HFP polymer using a strong polar solvent (DMF). Two sulfides show distinct behaviors when dispersed in the DMF solvent. The Li<sub>7</sub>PS<sub>6</sub>-SCE exhibits an ionic conductivity of 2.5 × 10<sup>−4</sup> S cm<sup>−1</sup> at room temperature, higher than the Li<sub>3</sub>PS<sub>4</sub>-SCE (1.75 × 10<sup>−4</sup> S cm<sup>−1</sup>). Moreover, Li<sub>7</sub>PS<sub>6</sub>-SCE displays better electrochemical cycling performance in solid-state Li metal batteries with LiNi<sub>1/3</sub>Mn<sub>1/3</sub>Co<sub>1/3</sub>O<sub>2</sub> (NMC 111) cathode.. When increasing upper cut-off voltages from 4.0 to 4.4 V, Li| Li<sub>7</sub>PS<sub>6</sub>-SCE |NMC111 cells deliver higher discharge capacities but exhibit worse cycling stability. Interface analysis using X-ray photoelectron spectroscopy (XPS) reveals the formation of LiF under a high voltage of 4.4 V, while t not present with 4.0 V. This work explores the synthesis of SCEs with different sulfides in a strong polar solvent and highlights the interface reactions between sulfide/PVDF-HFP SCEs with oxide cathodes.</p>","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 12","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142191537","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}
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