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Chemical state of nickel nanoparticles during the oxygen evolution reaction in a carbonate-bicarbonate buffer solution 碳酸盐-碳酸氢盐缓冲溶液中氧进化反应过程中镍纳米颗粒的化学状态
IF 8.9 2区 综合性期刊
Cell Reports Physical Science Pub Date : 2024-08-21 DOI: 10.1016/j.xcrp.2024.102165
Bat-Or Shalom, Miguel A. Andrés, Ashley R. Head, Boruch Z. Epstein, Olga Brontvein, Virginia Pérez-Dieste, Ignacio J. Villar-Garcia, Alex S. Walton, Kacper Polus, Robert S. Weatherup, Baran Eren
{"title":"Chemical state of nickel nanoparticles during the oxygen evolution reaction in a carbonate-bicarbonate buffer solution","authors":"Bat-Or Shalom, Miguel A. Andrés, Ashley R. Head, Boruch Z. Epstein, Olga Brontvein, Virginia Pérez-Dieste, Ignacio J. Villar-Garcia, Alex S. Walton, Kacper Polus, Robert S. Weatherup, Baran Eren","doi":"10.1016/j.xcrp.2024.102165","DOIUrl":"https://doi.org/10.1016/j.xcrp.2024.102165","url":null,"abstract":"<p>The chemical state of nickel anodes during the oxygen evolution reaction can impact their electrocatalytic performance. Here, X-ray photoelectron and absorption spectroscopies reveal the chemical state of nickel nanoparticles under oxygen evolution reaction conditions in a mildly alkaline carbonate-bicarbonate buffer solution. Ni<sup>2+</sup> and Ni<sup>3+</sup> species are observed at the reaction onset potential with a 7:4 ratio, with no remaining metallic nickel. These species include NiO, which increasingly converts to other Ni<sup>2+</sup> and Ni<sup>3+</sup> species once the potential is increased above the onset potential. Conversely, when a 20-nm-thick nickel film is used instead of nickel nanoparticles, a significant amount of metallic nickel remains in the inner layers. Nickel nanoparticles also undergo significant morphological and structural changes during the reaction, as evidenced by <em>ex situ</em> transmission electron microscopy. Amorphization of the nanoparticles is attributed to significant H<sub>2</sub>O incorporation, with the oxygen intensity increasing both in <em>operando</em> and <em>ex situ</em> measurements.</p>","PeriodicalId":9703,"journal":{"name":"Cell Reports Physical Science","volume":"30 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced thermoelectric properties of flexible self-supporting carbon nanotube film/polypyrrole composites 增强柔性自支撑碳纳米管薄膜/聚吡咯复合材料的热电特性
IF 8.9 2区 综合性期刊
Cell Reports Physical Science Pub Date : 2024-08-21 DOI: 10.1016/j.xcrp.2024.102163
Xiaohua Liu, Jing Huang, Yong Du, Lei Wang, Per Eklund
{"title":"Enhanced thermoelectric properties of flexible self-supporting carbon nanotube film/polypyrrole composites","authors":"Xiaohua Liu, Jing Huang, Yong Du, Lei Wang, Per Eklund","doi":"10.1016/j.xcrp.2024.102163","DOIUrl":"https://doi.org/10.1016/j.xcrp.2024.102163","url":null,"abstract":"For energy harvesting by flexible thermoelectrics, composite materials have prospects for wearable electronics and require processing methods yielding composites with high thermoelectric performance. Here, we report the fabrication of flexible carbon nanotube film (CNTF)/polypyrrole (PPy) composites by polymerization of PPy on the CNTF. The two-dimensional network structure of CNTF can solve the limitations on the thermoelectric performance of CNT/PPy caused by the poor dispersion and orientation of CNTs. The CNTF/PPy composites exhibit a maximum thermoelectric power factor of 369.2 μWmK at 300 K, which is nearly twice of that of the CNTF (191.2 μWmK). The composites also display flexibility under repeated bending. Composites treated with pre-stretching obtain a higher power factor of 403.8 μWmK at 320 K. This method provides a pathway for optimizing the thermoelectric properties of composites based on CNTF. The study is of importance for application prospects in the fields of thermoelectric conversion and multifunctional wearable electronics.","PeriodicalId":9703,"journal":{"name":"Cell Reports Physical Science","volume":"38 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Naphthopyran-based photoswitching for simpler chemical sensing and imaging using phase-sensitive mode 基于萘吡喃的光开关，利用相敏模式实现更简单的化学传感和成像
IF 8.9 2区 综合性期刊
Cell Reports Physical Science Pub Date : 2024-08-21 DOI: 10.1016/j.xcrp.2024.102167
Yu Cheng, Yifu Wang, Jingying Zhai, Xiaojiang Xie
{"title":"Naphthopyran-based photoswitching for simpler chemical sensing and imaging using phase-sensitive mode","authors":"Yu Cheng, Yifu Wang, Jingying Zhai, Xiaojiang Xie","doi":"10.1016/j.xcrp.2024.102167","DOIUrl":"https://doi.org/10.1016/j.xcrp.2024.102167","url":null,"abstract":"<p>Intensity-based fluorescence imaging suffers from spectral overlap and optical background interference. As an alternative, fluorescence lifetime measurements on the nanosecond level are also largely constrained. Herein, we propose phase-sensitive detection of photoswitchable probes containing naphthopyran and fluorescent donors. The method features reaction kinetics in the millisecond-to-second regime, allowing frequency domain detection with cost-effective equipment. A phase shift (Δϕ) in the fluorescence of the probes is extracted by fast Fourier transform, establishing a dependence on the molar ratio of donor to acceptor. Thus, Δϕ is proposed as a self-referencing quantity for selective highlighting of fluorescent probes and a dynamic signal readout in chemical sensing. Phase-sensitive detection of protamine, a polycationic protein often used as a neutralizer of the anticoagulant heparin during surgery, is successfully realized based on the platform.</p>","PeriodicalId":9703,"journal":{"name":"Cell Reports Physical Science","volume":"11 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Focus on bioelectronics 关注生物电子学
IF 8.9 2区 综合性期刊
Cell Reports Physical Science Pub Date : 2024-08-21 DOI: 10.1016/j.xcrp.2024.102162
Sohini Kar-Narayan, Sahika Inal
{"title":"Focus on bioelectronics","authors":"Sohini Kar-Narayan, Sahika Inal","doi":"10.1016/j.xcrp.2024.102162","DOIUrl":"https://doi.org/10.1016/j.xcrp.2024.102162","url":null,"abstract":"No Abstract","PeriodicalId":9703,"journal":{"name":"Cell Reports Physical Science","volume":"13 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Battery cumulative lifetime prognostics to bridge laboratory and real-life scenarios 电池累积寿命预报技术将实验室和现实生活场景融为一体
IF 8.9 2区 综合性期刊
Cell Reports Physical Science Pub Date : 2024-08-21 DOI: 10.1016/j.xcrp.2024.102164
Dongzhen Lyu, Bin Zhang, Enrico Zio, Jiawei Xiang
{"title":"Battery cumulative lifetime prognostics to bridge laboratory and real-life scenarios","authors":"Dongzhen Lyu, Bin Zhang, Enrico Zio, Jiawei Xiang","doi":"10.1016/j.xcrp.2024.102164","DOIUrl":"https://doi.org/10.1016/j.xcrp.2024.102164","url":null,"abstract":"<p>Battery operating data from real-life scenarios are riddled with randomness, complexity, and multi-cell grouping, posing significant challenges for applying lifetime prognostic approaches developed from laboratory scenarios. To address this, we have conducted extensive experimental investigations into battery degradation across laboratory and real-life scenarios spanning a 4 year period, involving a total of approximately 546,000 charge-discharge cycles across hundreds of cells and packs. In addition to our experimental investigations, we develop a lifetime prognosis approach by creatively incorporating the concept of cumulative utilization lifetime. Our approach highlights the significant potential of transferring knowledge gained from standardized laboratory scenarios to diverse real-world conditions. It consistently improves performance from early prediction to real-time prediction, achieving a remarkable error margin of around 5% and millisecond-level computational efficiency on a portable laptop with no dedicated graphics. Furthermore, our experimental investigations underscore the beneficial effects of seasonal low temperatures on prolonging battery lifetime.</p>","PeriodicalId":9703,"journal":{"name":"Cell Reports Physical Science","volume":"44 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal-controlled cholesteric liquid crystal wavelength filter lens for photosensitive epilepsy treatment 用于光敏癫痫治疗的热控胆固醇液晶波长滤光透镜
IF 8.9 2区 综合性期刊
Cell Reports Physical Science Pub Date : 2024-08-20 DOI: 10.1016/j.xcrp.2024.102158
Yuanjie Xia, Zubair Ahmed, Affar Karimullah, Nigel Mottram, Hadi Heidari, Rami Ghannam
{"title":"Thermal-controlled cholesteric liquid crystal wavelength filter lens for photosensitive epilepsy treatment","authors":"Yuanjie Xia, Zubair Ahmed, Affar Karimullah, Nigel Mottram, Hadi Heidari, Rami Ghannam","doi":"10.1016/j.xcrp.2024.102158","DOIUrl":"https://doi.org/10.1016/j.xcrp.2024.102158","url":null,"abstract":"<p>Cholesteric liquid crystals (CLCs) exhibit optical properties that are highly responsive to temperature or electric fields. Here, we report an approach to aiding in photosensitive epilepsy treatment by developing a thermal-controlled CLC wavelength filter lens. This lens demonstrates exceptional optical tunability, enabling it to dynamically change its stopband in response to temperature changes. At room temperature, the stopband of the CLC lens is outside the visible spectrum, rendering the lens functionally similar to normal glass. As the temperature rises to 36.5°C, the lens efficiently blocks light within the 660- to 720-nm wavelength range, which is the known trigger wavelength for photosensitive epilepsy. CLC materials with opposite handedness are used to achieve over 98% light cutoff at the stopband. We propose a control system for dynamically controlling the temperature in real time. The tunable lenses offer a solution for mitigating the effects of specific light stimuli on affected individuals.</p>","PeriodicalId":9703,"journal":{"name":"Cell Reports Physical Science","volume":"63 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanochemically driven covalent self-assembly of a chiral mono-biotinylated hemicucurbit[8]uril 单生物素手性半葫芦[8]脲的机械化学驱动共价自组装
IF 8.9 2区 综合性期刊
Cell Reports Physical Science Pub Date : 2024-08-20 DOI: 10.1016/j.xcrp.2024.102161
Elina Suut-Tuule, Tatsiana Jarg, Priit Tikker, Ketren-Marlein Lootus, Jevgenija Martõnova, Rauno Reitalu, Lukas Ustrnul, Jas S. Ward, Vitalijs Rjabovs, Kirill Shubin, Jagadeesh V. Nallaparaju, Marko Vendelin, Sergei Preis, Mario Öeren, Kari Rissanen, Dzmitry Kananovich, Riina Aav
{"title":"Mechanochemically driven covalent self-assembly of a chiral mono-biotinylated hemicucurbit[8]uril","authors":"Elina Suut-Tuule, Tatsiana Jarg, Priit Tikker, Ketren-Marlein Lootus, Jevgenija Martõnova, Rauno Reitalu, Lukas Ustrnul, Jas S. Ward, Vitalijs Rjabovs, Kirill Shubin, Jagadeesh V. Nallaparaju, Marko Vendelin, Sergei Preis, Mario Öeren, Kari Rissanen, Dzmitry Kananovich, Riina Aav","doi":"10.1016/j.xcrp.2024.102161","DOIUrl":"https://doi.org/10.1016/j.xcrp.2024.102161","url":null,"abstract":"<p>Solution-based synthesis of complex molecules with high efficiency leverages supramolecular control over covalent bond formation. Herein, we present the mechanosynthesis of chiral mono-biotinylated hemicucurbit[8]urils (mixHC[8]s) via the condensation of D-biotin, (<em>R,R</em>)- or (<em>S,S</em>)-cyclohexa-1,2-diylurea, and paraformaldehyde. The selectivity of self-assembly is enhanced through mechanochemistry and by fostering non-covalent interactions, achieved by eliminating solvents and conducting the reaction in the solid state. Rigorous analysis of intermediates reveals key processes and chemical parameters influencing dynamic covalent chemistry. The library of ca. 50,000 theoretically predicted intermediates and products leads to covalent self-assembly of chiral hemicucurbiturils. Mechanochemically prepared diastereomeric (−)- and (+)-mixHC[8]s are suitable for anion binding and derivatization. Immobilization of the macrocycles on aminated silica produces a functional material capable of selective capture of anions, as demonstrated by efficient perchlorate removal from a spiked mineral matrix.</p>","PeriodicalId":9703,"journal":{"name":"Cell Reports Physical Science","volume":"2 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnetic and radio frequency dual-responsive shape-programmable robots for adaptive aneurysm embolization 用于自适应动脉瘤栓塞的磁性和射频双响应形状可编程机器人
IF 8.9 2区 综合性期刊
Cell Reports Physical Science Pub Date : 2024-08-20 DOI: 10.1016/j.xcrp.2024.102160
Jiancheng Liu, Shu Wang, Shunyuan Huang, Ke Zhang, , Zhecheng Chen, Chenyang Huang, Yonghong Zhang, Shiwei Du, Tiantian Xu
{"title":"Magnetic and radio frequency dual-responsive shape-programmable robots for adaptive aneurysm embolization","authors":"Jiancheng Liu, Shu Wang, Shunyuan Huang, Ke Zhang, , Zhecheng Chen, Chenyang Huang, Yonghong Zhang, Shiwei Du, Tiantian Xu","doi":"10.1016/j.xcrp.2024.102160","DOIUrl":"https://doi.org/10.1016/j.xcrp.2024.102160","url":null,"abstract":"<p>Aneurysm is a common disease that poses a threat to human health. Currently, treating aneurysms mainly relies on embolization using metallic microcoils. However, it is extremely difficult to insert metallic microcoils into the aneurysm inside tortuous vessels. Besides, adapting fixed metallic microcoils to different aneurysms is also a major problem. In this paper, we propose a shape-programmable robot based on a magnetic and radio frequency (RF) dual-responsive shape memory polymer (SMP). The SMP robot can move automatically to the target under a programmable magnetic field. Meanwhile, it can be heated up and will transform from a small-sized ball shape to the aneurysm shape using RF. In addition, the dual-responsive SMP has excellent mechanical properties; its tensile modulus is 50 times higher than that of traditional hydrogels, reducing the possibility of fracture during embolization. In the future, this SMP robot could be potentially suitable for clinical translation.</p>","PeriodicalId":9703,"journal":{"name":"Cell Reports Physical Science","volume":"61 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Capturing an Eigen complex in an acid-base reaction shows step-resolved molecularity 捕捉酸碱反应中的特征复合体，显示阶跃分辨的分子性
IF 8.9 2区 综合性期刊
Cell Reports Physical Science Pub Date : 2024-08-19 DOI: 10.1016/j.xcrp.2024.102155
Seok-Hyeon Lee, Ye-Jin Choi, Ye-Jin Kim, Jung-Min Kee, Oh-Hoon Kwon
{"title":"Capturing an Eigen complex in an acid-base reaction shows step-resolved molecularity","authors":"Seok-Hyeon Lee, Ye-Jin Choi, Ye-Jin Kim, Jung-Min Kee, Oh-Hoon Kwon","doi":"10.1016/j.xcrp.2024.102155","DOIUrl":"https://doi.org/10.1016/j.xcrp.2024.102155","url":null,"abstract":"<p>In the Eigen-Weller framework, acid-base reactions are described as those consisting of serial steps. The steps include the encounter of acid and base compounds, short-range proton transfer within the encounter complexes, and separation of the resulting Eigen complexes (ECs) equivalent to long-range proton diffusion. Although the initial proton transfer step in the encounter complexes has been extensively explored, the final step requisite to terminating the acid-base reactions has been overlooked. Using time-resolved fluorescence spectroscopy and chemical kinetics analysis, we track the excited-state proton transfer of a cationic acid to an aprotic base in binary solvent mixtures, where the lifetimes of ECs are prolonged. Identifying the ECs spectrally and kinetically, we investigate the molecularity in the consecutive steps of the hydrogen-bond formation between the acid and base and the dissociation of the EC to unveil the cooperative nature of the aprotic base molecules in the model reaction.</p>","PeriodicalId":9703,"journal":{"name":"Cell Reports Physical Science","volume":"3 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An inverse opal complex wick for high-performance ultrathin heat pipes 用于高性能超薄热管的反蛋白石复合芯线
IF 8.9 2区 综合性期刊
Cell Reports Physical Science Pub Date : 2024-08-19 DOI: 10.1016/j.xcrp.2024.102156
Desong Fan, Jun Fang, Wenyi Tong, Wenqing Du, Qiang Li
{"title":"An inverse opal complex wick for high-performance ultrathin heat pipes","authors":"Desong Fan, Jun Fang, Wenyi Tong, Wenqing Du, Qiang Li","doi":"10.1016/j.xcrp.2024.102156","DOIUrl":"https://doi.org/10.1016/j.xcrp.2024.102156","url":null,"abstract":"<p>Ultrathin heat pipes (UHPs) have attracted tremendous attention in recent years. However, fabricating UHPs with high heat-transfer efficiency and low thermal expansion remains a challenge. Here, we report a design of an inverse opal complex wick for UHPs. The design enables the wick to have abundant random micropores for the transportation of vapor and ordered nanopores for the return of condensate. With the assistance of a Cu/MoCu/Cu shell, the UHP with a thickness of 0.985 mm can maintain a low coefficient of thermal expansion (7.3E−6 /K) and allow a gallium nitride (GaN) chip to work at a heat flux of 208 W/cm<sup>2</sup>. When the liquid filling ratio reaches 54%, a lower thermal resistance of 0.8 K/W and a higher thermal conductivity of 11,076 W/(m⋅K) are realized. This study demonstrates the successful fabrication of high-performance UHPs, promoting the development of inverse opal wicks from materials to devices.</p>","PeriodicalId":9703,"journal":{"name":"Cell Reports Physical Science","volume":"110 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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