Rare Metals最新文献_第5页

The p-n-type PANI/ZnS heterostructure utilizing quantum dot network to achieve low-overpotential photo-assisted lithium–oxygen battery 利用量子点网络实现低过电位光辅助锂氧电池的p-n型PANI/ZnS异质结构

IF 9.6 1区材料科学

Rare Metals Pub Date : 2025-02-25 DOI: 10.1007/s12598-024-03134-5

Shuang-Hong Xia, Yang Yang, Ran-Ran Zhang, Ling Li, Song Chen, Wen-Ming Zhang

{"title":"The p-n-type PANI/ZnS heterostructure utilizing quantum dot network to achieve low-overpotential photo-assisted lithium–oxygen battery","authors":"Shuang-Hong Xia, Yang Yang, Ran-Ran Zhang, Ling Li, Song Chen, Wen-Ming Zhang","doi":"10.1007/s12598-024-03134-5","DOIUrl":"10.1007/s12598-024-03134-5","url":null,"abstract":"<div><p>The lithium-oxygen battery (LOB) is a promising source of green energy due to its energy density. However, the development of this technology is limited by the insoluble discharge product it produces. In this work, a cathode material with a p-n heterostructure of polyaniline (PANI)/ZnS is prepared to trap visible light, utilizing a ZnS quantum dot (ZnS QD) network to form a large number of photogenerated electron–hole pairs, thus promoting the generation and decomposition of Li<sub>2</sub>O<sub>2</sub>. The prepared PANI/ZnS has an ultra-low overpotential of 0.06 V under illumination. Furthermore, density functional theory theoretical calculation has demonstrated the ability of the heterostructures to adsorb oxygen-containing intermediates, which not only facilitates the growth of Li<sub>2</sub>O<sub>2</sub>, but also reduces the reaction energy required to decompose Li<sub>2</sub>O<sub>2</sub>. The present work provides a solution to the problem of insolubility of discharge products in photo-assisted LOB.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 6","pages":"3784 - 3794"},"PeriodicalIF":9.6,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Recovery of CdS photocatalyst from spent Ni–Cd batteries using a thiosulfate leaching system and UV photolysis precipitation 硫代硫酸盐浸出-紫外光解沉淀法从废镍镉电池中回收CdS光催化剂

IF 9.6 1区材料科学

Rare Metals Pub Date : 2025-02-25 DOI: 10.1007/s12598-024-03185-8

Chao Han, Feng-Ling Liu, Qing Tao, Yong Liu, Qian-Kun Jing, Heinz-Rolf Stock, Guang-Xin Wang, Ning Ma

{"title":"Recovery of CdS photocatalyst from spent Ni–Cd batteries using a thiosulfate leaching system and UV photolysis precipitation","authors":"Chao Han, Feng-Ling Liu, Qing Tao, Yong Liu, Qian-Kun Jing, Heinz-Rolf Stock, Guang-Xin Wang, Ning Ma","doi":"10.1007/s12598-024-03185-8","DOIUrl":"10.1007/s12598-024-03185-8","url":null,"abstract":"<div><p>This study addresses the global problem of the detoxification of cadmium (Cd)-containing solid waste by developing an eco-friendly thiosulfate system for extracting the negative electrode materials from spent Ni–Cd batteries and proposing an ultraviolet (UV) photolysis technology for the green recycling of the Cd in the resultant leached solution. Cd extraction is performed using both simple thiosulfate and cuprous thiosulfate systems, with the cuprous thiosulfate system exhibiting a superior leaching performance (80%), as compared with that of the simple thiosulfate system (36%). X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses reveal the formation of copper sulfide on the surface of the Ni–Cd batteries leaching residue, which is confirmed by Cd-leaching kinetics fitting using the shrinking-core model. Following UV exposure, 95% of the Cd precipitates from the leaching solution to form CdS. Transmission electron microscopy (TEM) characterization and particle size distribution reveal that the CdS contains 100–150 nm-diameter spherical particles with compact surface structures. Electrochemical performance tests and UV–visible diffuse reflectance spectra (UV–Vis DRS) analyses demonstrate that the UV-photolysis product exhibits excellent photoelectric conversion characteristics. Photocatalytic activity tests of the recovered CdS confirm that the photocatalytic degradation ratio of methyl orange is 87%, indicating the successful green recycling of Cd from spent Ni–Cd batteries, which improves its potential application in the field of photocatalysis.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 6","pages":"4241 - 4254"},"PeriodicalIF":9.6,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Recent advances in MXene-based flexible pressure sensors for medical monitoring 基于mxene的医疗监测柔性压力传感器的最新进展

IF 9.6 1区材料科学

Rare Metals Pub Date : 2025-02-25 DOI: 10.1007/s12598-024-03157-y

Xu-Hui Zhang, Bo Wang, Bin Zhou, Hai-Jun Lin, Yu-Xi Liu, Fu-Mei Yang, Shang-Kun Sun, Qing-Hao Song, Qing Wu

{"title":"Recent advances in MXene-based flexible pressure sensors for medical monitoring","authors":"Xu-Hui Zhang, Bo Wang, Bin Zhou, Hai-Jun Lin, Yu-Xi Liu, Fu-Mei Yang, Shang-Kun Sun, Qing-Hao Song, Qing Wu","doi":"10.1007/s12598-024-03157-y","DOIUrl":"10.1007/s12598-024-03157-y","url":null,"abstract":"<div><p>The emergence of two-dimensional nanomaterials, especially MXene, significantly overcomes the limitations of flexible pressure sensors regarding their sensing abilities, mechanical properties, and electromagnetic shielding effectiveness. This advancement underscores their great potential for use in wearable and medical monitoring devices. However, single-layer MXene is highly prone to oxidation when exposed to air and tends to stack between layers. Combining MXene with other functional materials to create heterojunction structures effectively addresses the stacking problem while also providing the resulting composites with excellent electrical conductivity, mechanical flexibility, and electromagnetic shielding capabilities, which are essential for enhancing sensor performance. This review systematically outlines various microstructural designs and improvement strategies aimed at boosting the sensing efficiency of different flexible pressure sensors based on MXene. It offers a comprehensive analysis of their significance in medical monitoring, anticipates future challenges and opportunities, and serves as an important reference for advancing precision and personalized approaches in medical monitoring.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 6","pages":"3653 - 3685"},"PeriodicalIF":9.6,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 single-molecule conductance by the quinoid structure of furan derivatives 呋喃衍生物醌类结构改善单分子电导

IF 9.6 1区材料科学

Rare Metals Pub Date : 2025-02-25 DOI: 10.1007/s12598-024-03187-6

Yi Xiong, Zhu-Wen Wei, Jin-Shi Li, Ping-Chuan Shen, Ben-Zhong Tang, Shi-Fa Zhu, Zu-Jin Zhao

{"title":"Improving single-molecule conductance by the quinoid structure of furan derivatives","authors":"Yi Xiong, Zhu-Wen Wei, Jin-Shi Li, Ping-Chuan Shen, Ben-Zhong Tang, Shi-Fa Zhu, Zu-Jin Zhao","doi":"10.1007/s12598-024-03187-6","DOIUrl":"10.1007/s12598-024-03187-6","url":null,"abstract":"<div><p>Quinoid structures are considered to be conducive to the charge transport of organic molecules, but this hypothesis is rarely proven at single-molecule level. Herein, as a proof of concept, the single-molecule conductance of two furan-based isomers, 3,3’-bis(4-(methylthio)phenyl)-2,2’-bifuran (2,2’-SMPBF) and 4,4’-bis(4-(methylthio)phenyl)-3,3’-bifuran (3,3’-SMPBF), is investigated by the scanning tunneling microscopy break junction (STM-BJ) technique and theoretical simulation. 2,2’-SMPBF prefers to adopt a nearly planar conformation with intact alternating single and double bonds extended via 2,2’-bifuran moiety and therefore exhibits good π-conjugation and a prominent quinoid structure. However, the π-conjugation of 3,3’-SMPBF is interrupted due to ineffective cross<i>-</i>conjugation in the 3,3’-bifuran moiety, leading to the absence of a quinoid structure. 2,2’-SMPBF displays switchable multiple conductances induced by the interconversion between folded and unfolded conformations and an abnormal rebound of conductance along with the increases of electrode displacement, which is demonstrated to be caused by the quinoid structure in a nearly planar conformation during the stretching process. However, 3,3’-SMPBF without a quinoid structure in unfolded conformation exhibits extremely low conductance that cannot be captured in STM-BJ measurements. These results reveal the significant contribution of quinoid structure to molecular charge transport and provide valuable information on the structure-transport relationship for the design of efficient organic semiconductors.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 6","pages":"4061 - 4073"},"PeriodicalIF":9.6,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

New crystal structure of Li3YCl6: structural relationship and ionic conductivity for solid-state electrolytes Li3YCl6的新晶体结构：固态电解质的结构关系和离子电导率

IF 9.6 1区材料科学

Rare Metals Pub Date : 2025-02-25 DOI: 10.1007/s12598-024-03069-x

Ji Hoon Kim, Byeongsun Jun, Yong Jun Jang, Chi Ho Lee, Sang Uck Lee

{"title":"New crystal structure of Li3YCl6: structural relationship and ionic conductivity for solid-state electrolytes","authors":"Ji Hoon Kim, Byeongsun Jun, Yong Jun Jang, Chi Ho Lee, Sang Uck Lee","doi":"10.1007/s12598-024-03069-x","DOIUrl":"10.1007/s12598-024-03069-x","url":null,"abstract":"<div><p>In the pursuit of safer and more energy-dense all-solid-state Li-ion batteries, solid-state electrolytes (SSEs) have emerged as pivotal components, with halide SSEs distinguished by their excellent electrochemical stability, enhanced Li-ion diffusion, and potential cost-efficiency. These properties depend on the anion elements and the structure of closely packed anion sublattices, such as cubic close-packed (ccp) and hexagonal close-packed (hcp) frameworks. Hence, understanding these key differences is essential because they influence the ion diffusion kinetic properties of various halide SSEs. However, research has predominantly shown that ccp anion sublattices generally exhibit higher ionic conductivities than their hcp counterparts, often overlooking the importance of the structural frameworks. To address this issue, we re-evaluated the assumption that a ccp framework is necessary for high electrochemical performance. Specifically, we utilized the three previously synthesized hcp and a ccp frameworks, all with an identical composition of Li<sub>3</sub>YCl<sub>6</sub>, to assess their thermodynamic stability, synthesizability, and ionic conductivity through ab initio molecular dynamics simulations. The results revealed that hcp frameworks could be promising candidates for SSEs, challenging the conventional preference for the ccp framework. With this structural insight, we designed a novel hcp framework to predict a new Li<sub>3</sub>YCl<sub>6</sub> crystal structure with the highest ionic conductivity (38 mS·cm<sup>−1</sup>) among the halide frameworks and a superior 2D Li-ion diffusion pathway. This breakthrough underscores the significance of the anion framework geometry in Li-ion diffusion and highlights the importance of precise crystallographic predictions in developing more efficient and cost-effective battery technologies.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 4","pages":"2366 - 2378"},"PeriodicalIF":9.6,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Achieving high strength and ductility in laser powder bed fusion-manufactured pure titanium through the addition of carbon nanotubes 通过添加碳纳米管，在激光粉末床熔合制备纯钛中实现高强度和高延展性

IF 9.6 1区材料科学

Rare Metals Pub Date : 2025-02-25 DOI: 10.1007/s12598-024-03186-7

Li Ma, Chang-Shun Wang, Ye Ma, Jae-Hyuk Kim, Cheng-Lin Li, Jae-Keun Hong

{"title":"Achieving high strength and ductility in laser powder bed fusion-manufactured pure titanium through the addition of carbon nanotubes","authors":"Li Ma, Chang-Shun Wang, Ye Ma, Jae-Hyuk Kim, Cheng-Lin Li, Jae-Keun Hong","doi":"10.1007/s12598-024-03186-7","DOIUrl":"10.1007/s12598-024-03186-7","url":null,"abstract":"<div><p>The features of additive manufacturing (AM) have made commercially pure titanium (CP-Ti) an attractive candidate material for biomedical implants. However, achieving high strength and ductility is challenging because of the columnar structures and fine martensite formation. This study investigated the effect of carbon nanotubes (CNTs) addition on the microstructure and mechanical properties of grade 1 CP-Ti (Gr-1) during the laser powder bed fusion (L-PBF) process. A minute amount of 0.2% mass fraction (wt%) CNTs addition resulted in a high yield strength of approximately 700 MPa and exceptional ductility of 25.7%. Therein, a portion of the CNTs dissolved in the matrix as solute atoms, contributing to solution strengthening, while others were transformed into TiC<sub><i>x</i></sub> through an in situ reaction with the Ti matrix. Furthermore, the addition of CNTs resulted in the formation of a larger fraction of equiaxed grains and increased the activity of basal and prismatic slip systems. Hence, Gr-1 with CNTs exhibited significantly increased ductility while maintaining a high strength comparable to that of Gr-1 without CNTs. The insights gained from this study provide a novel approach for designing strong and ductile Ti alloys for AM.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 6","pages":"4149 - 4161"},"PeriodicalIF":9.6,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Mo monoatomic doping of ReS2 quantum dots with size control for piezoelectric synergistic photocatalysis 具有尺寸控制的钼单原子掺杂ReS2量子点用于压电协同光催化

IF 9.6 1区材料科学

Rare Metals Pub Date : 2025-02-25 DOI: 10.1007/s12598-024-03206-6

Jin-Feng Shen, Shu-Le Huang, Mo-Ran Qin, Xin-Miao Xuan, Shao-Qiang Su, Xiao-Ming Zhang, Xin-Xing Xu, Zhi-Peng Hou, Zhang Zhang, Jun-Ming Liu

{"title":"Mo monoatomic doping of ReS2 quantum dots with size control for piezoelectric synergistic photocatalysis","authors":"Jin-Feng Shen, Shu-Le Huang, Mo-Ran Qin, Xin-Miao Xuan, Shao-Qiang Su, Xiao-Ming Zhang, Xin-Xing Xu, Zhi-Peng Hou, Zhang Zhang, Jun-Ming Liu","doi":"10.1007/s12598-024-03206-6","DOIUrl":"10.1007/s12598-024-03206-6","url":null,"abstract":"<div><p>Water purification systems based on transition metal dichalcogenides face significant challenges, including lack of reactivity under dark conditions, scarcity of catalytically active sites, and rapid recombination of photo-generated charge carriers. Simultaneously increasing the number of active sites and improving charge separation efficiency has proven difficult. In this study, we present a novel approach combining molybdenum (Mo) monoatomic doping and size engineering to produce a series of Mo-ReS<sub>2</sub> quantum dots (MR QDs) with controllable dimensions. High-resolution structural characterization, first-principle calculations, and piezo force microscopy reveal that Mo monoatomic doping enhances the lattice asymmetry, thereby improving the piezoelectric properties. The resulting piezoelectric polarization and the generated built-in electric field significantly improve charge separation efficiency, leading to optimized photocatalytic performance. Additionally, the doping strategy increases the number of active sites and improves the adsorption of intermediate radicals, substantially boosting photo-sterilization efficiency. Our results demonstrate the elimination of 99.95% of <i>Escherichia coli</i> and 100.00% of <i>Staphylococcus aureus</i> within 30 min. Furthermore, we developed a self-purification system simulating water drainage, utilizing low-frequency water streams to trigger the piezoelectric behavior of MR QDs, achieving piezoelectric synergistic photodegradation. This innovative approach provides a more environmentally friendly and economical method for water self-purification, paving the way for advanced water treatment technologies.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 6","pages":"3943 - 3955"},"PeriodicalIF":9.6,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Nose-to-brain delivery of gold nanozyme with cascade effect for bacterial meningitis therapy 具有级联效应的金纳米酶经鼻至脑输送治疗细菌性脑膜炎

IF 9.6 1区材料科学

Rare Metals Pub Date : 2025-02-25 DOI: 10.1007/s12598-024-03132-7

Shu-Yue Deng, Xin-Yu Zhou, Xiao-Peng Zou, Fang Tang, Dong Yang, Cai-Xia Sun, Jun Luo, Xing Ge, Jia-Ying Zhu, Tian-Ye Fang, Cai-Feng Yue, Yan-Min Ju, Jian-Jun Dai

{"title":"Nose-to-brain delivery of gold nanozyme with cascade effect for bacterial meningitis therapy","authors":"Shu-Yue Deng, Xin-Yu Zhou, Xiao-Peng Zou, Fang Tang, Dong Yang, Cai-Xia Sun, Jun Luo, Xing Ge, Jia-Ying Zhu, Tian-Ye Fang, Cai-Feng Yue, Yan-Min Ju, Jian-Jun Dai","doi":"10.1007/s12598-024-03132-7","DOIUrl":"10.1007/s12598-024-03132-7","url":null,"abstract":"<div><p>The presence of the blood–brain barrier limits the drug concentration in the brain, while low concentrations of antibiotics make it difficult to kill infecting bacteria and tends to induce drug resistance, making the clinical treatment of bacterial meningitis challenging. Herein, a nose-to-brain delivery strategy of small-sized nanozyme has been fabricated for combating bacterial meningitis, to overcome the low drug concentration and drug resistance. This strategy was achieved by a protein-supported Au nanozyme (ANZ). With a particle size of less than 10 nm, it possesses both glucose oxidase-like and peroxidase-like activities and can generate large amounts of reactive oxygen species through a cascade effect without the addition of external H<sub>2</sub>O<sub>2</sub>. Benefiting from the cascade catalytic amplification effect generated by its dual enzyme-like activities, ANZ shows significant broad-spectrum antibacterial activity without inducing bacterial resistance in vitro. Notably, small-sized ANZ exhibits higher brain entry efficiency and greater accumulation after intranasal administration compared to oral or intravenous administration. In a mouse model of bacterial meningitis, the mice treated with ANZ had lower bacterial loads in the brain and higher survival and clinical behavior scores compared to the classical antibiotic ceftriaxone. Additionally, the meningitis mice exhibited undamaged cognitive and behavioral abilities, indicating the excellent biocompatibility of ANZ. The above results demonstrate that nose-to-brain delivery of ANZ exhibits high intracerebral accumulation, strong antibacterial efficacy and does not lead to bacterial resistance. It holds broad prospects for the treatment of bacterial meningitis.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 6","pages":"4014 - 4024"},"PeriodicalIF":9.6,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Understanding anionic redox chemistry from the perspective of electronic structure 从电子结构的角度理解阴离子氧化还原化学

IF 9.6 1区材料科学

Rare Metals Pub Date : 2025-02-24 DOI: 10.1007/s12598-024-03178-7

Zhen Yu, Peng-Fei Yu, Xiao-Song Liu

{"title":"Understanding anionic redox chemistry from the perspective of electronic structure","authors":"Zhen Yu, Peng-Fei Yu, Xiao-Song Liu","doi":"10.1007/s12598-024-03178-7","DOIUrl":"10.1007/s12598-024-03178-7","url":null,"abstract":"<div><p>The rapidly growing electric cars and energy storage systems have extremely promoted the development of advanced lithium and sodium ion batteries and stimulated evolution of high-capacity cathodes. Li/Na-rich layered cathodes consisting cationic and anionic reactions as the most typical representative of high-capacity cathodes have shown its tremendous potential. However, there is a long way to go before commercialization because of unsatisfactory performances including large voltage hysteresis, voltage fade and poor cycle performance. Numerous investigations on redox mechanisms and engineering strategies have been performed from the point view of structure and made significant progress, which has been well reviewed. Meanwhile, the unacceptable issues are essentially correlated to the electronic configuration of anionic redox and its interaction with adjacent transition metal cations, which can be well depicted from electronic structure. However, the investigations on anionic reaction process in the viewpoint of electronic structure have been much less summarized. This review aims to compile the current knowledge of anionic redox from the point view of electronic structure, including configuration, origination, evolution, detection and coupling relationship with cationic redox. This work is attempted to inspire new perspectives and design approaches for the development of high-capacity cathodes.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 6","pages":"3709 - 3734"},"PeriodicalIF":9.6,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Revealing high-temperature oxidation behavior and structure evolution of SnS: an electron microscopic investigation 揭示SnS高温氧化行为和结构演化的电镜研究

IF 9.6 1区材料科学

Rare Metals Pub Date : 2025-02-24 DOI: 10.1007/s12598-024-03130-9

Si-Kang Zheng, Zhen-Hua Zhang, Yan-Yan Tao, Xiao-Meng Yang, Jie Liu, Hong-Hui Wang, Guang Han, Xu Lu, Guo-Yu Wang, Bin Zhang, Xiao-Yuan Zhou

{"title":"Revealing high-temperature oxidation behavior and structure evolution of SnS: an electron microscopic investigation","authors":"Si-Kang Zheng, Zhen-Hua Zhang, Yan-Yan Tao, Xiao-Meng Yang, Jie Liu, Hong-Hui Wang, Guang Han, Xu Lu, Guo-Yu Wang, Bin Zhang, Xiao-Yuan Zhou","doi":"10.1007/s12598-024-03130-9","DOIUrl":"10.1007/s12598-024-03130-9","url":null,"abstract":"<div><p>SnS, a well-known van der Waals chalcogenide, is susceptible to oxidation in high-temperature or high-humidity environments, significantly impacting its functional performance and device stability. Conversely, oxidation can be used as an effective strategy for surface engineering, allowing for structure modulation or design, property tuning and application exploration. However, there is currently a gap in understanding the relationship between the oxidation behavior of SnS, the structure of its oxidized surface, and the dependence on oxidation temperature. In this study, we systematically investigated the evolution of SnS surfaces under thermal oxidation using electron microscopy. The microstructure evolution (e.g., surface structures, phases, defects, and interface) of SnS during high-temperature oxidation has been fully characterized and studied based on cross-sectional samples. Various surface heterostructures were constructed, including SnO<sub>2</sub>/SnS, SnO<sub>2</sub>/SnS<sub>2</sub>/SnS, and SnO<sub>2</sub>/Sn<sub>2</sub>S<sub>3</sub>/SnS, offering significant potential for the surface functionalization of SnS-based systems. Accordingly, oxidation mechanisms at different stages were elucidated based on the detailed and clear picture of microstructures. This research not only deepens our understanding of the fundamental science of SnS oxidation but also provides valuable insights for preventing and developing surface oxidation engineering in SnS and other van der Waals chalcogenides/materials.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 6","pages":"4086 - 4094"},"PeriodicalIF":9.6,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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