bluuebunny/crossref_metadata_2025_split huggingface dataset:
One‐Pot Polyol Syntheses of Ag Right Bipyramids and Nanocubes, and their Surface‐Enhanced Raman Scattering Properties
Authors: Zhu Zhaoxi , Wang Xiaolu , Li Dan , Ou Changgongyao , Liu Ruochen , Lin Taifeng , Guo Fu 
Published: November 2024

AbstractCamphorquinone (CQ)‐mediated one‐pot polyol methods are developed to synthesize silver right bipyramids and nanocubes. Morphology control between silver right bipyramids and nanocubes is conducted by adjusting FeCl3 concentration. Silver right bipyramids with an average size of 170 nm and a yield of 87% are obtained with 0.11 mm FeCl3, while silver nanocubes with an average size of 120 nm and a yield of 70% are obtained with 0.04 mm FeCl3. The as‐synthesized Ag right bipyramids and nanocubes fabricate Surface‐enhanced Raman scattering (SERS) substrates with good signal reproducibility to detect the Rhodamine 6G with concentrations down to 10−12 m. The SERS performance of silver right bipyramids larger than 100 nm is experimentally investigated. A comparison of the Raman enhancement effect between Ag right bipyramid and nanocube is conducted by comparing the enhancement factors of as‐fabricated Ag right bipyramid and nanocube SERS substrates. The Ag right bipyramid and nanocube SERS substrates are obtained at the same experimental condition, and their enhancement factors are calculated to be 3.11 × 104 and 2.37 × 104, respectively. The fabricated sensitive SERS substrates can potentially be used for ultrasensitive detection of analytes in applications such as food safety and environmental monitoring.
Modification of Silicon Nanowires with Flower‐Like Metal Particles and its Efficacy as Textile Dye Remover from Water
Authors: Ray Unmesha , Banerjee Diptonil , Sarkar Sourav , Chattopadhyay K. K. 
Published: November 2024

AbstractWater contamination due to significant industrialization and urbanization has drawn the attention of numerous researchers to water remediation techniques like photocatalysis. The intriguing characteristics of silicon nanowires (SiNWs), like light trapping and catalytic activity for the removal of textile dyes, have drawn attention to this material. In this work, the synthesis of SiNWs and their modifications with metal particles like copper or silver with different concentrations has been reported. Metal‐assisted chemical etching, a cost‐effective and easy method, is used to synthesis SiNWs with an optimized aspect ratio. The as‐prepared materials and it photocatalysis performance are studied by X‐ray diffraction (XRD), field emission and transmission electron microscope (FESEM, TEM), and UV–visible spectroscopy. The XRD confirms the presence of the copper particles on SiNWs. The FESEM image reveals the formation of flower‐like structures with different morphologies for silver and copper‐modified SiNWs. The as‐prepared samples have shown efficacy in removing Rhodamine‐B by the process of photocatalysis under irradiation with UV light. It has been observed that when the concentration of the copper nanoparticles is increased, a significant increase in the photocatalytic activity is obtained. The removal efficiency came within the range of 50–65%.
Bivariate degradation modeling and reliability analysis based on generalized nonlinear Wiener processes and a shared frailty factor
Authors: Li Lu , Wang Zhihua , Wu Qiong , Mao Zelong , Liu Chengrui 
Published: November 2024

AbstractThe complexity of product functionality and composition often involves at least two or more interrelated performance characteristics jointly reflecting the degradation. At the same time, the intricacy of the underlying failure mechanisms often results in degradation processes exhibiting intricate nonlinear patterns, where the mean and variance can display different nonlinear behaviors. Additionally, the random effect of the degradation process should not be overlooked. Therefore, an accurate depiction of degradation regulation is a crucial prerequisite for reasonable model construction and effective reliability analysis. To settle the challenges posed by complex nonlinear scenarios, this paper proposes a bivariate degradation model based on generalized nonlinear Wiener processes, incorporating a shared frailty factor to characterize the correlation between performance features. An approximate analytical expression for the cumulative distribution function of the first hitting time is derived for reliability analysis. Furthermore, unknown parameter estimation is carried out through a combination of the expectation–maximization algorithm and the genetic algorithm. Finally, the effectiveness of the proposed model and reliability analysis method is validated through a comprehensive simulation investigation and a practical case study involving fatigue crack propagation.
Iterative Design of H∞ Loop‐Shaping Weight for Single‐Input Single‐Output Lightly Damped Systems
Authors: Cheng Shaokun , Ma Lei , Zhou Kemin 
Published: November 2024

ABSTRACTThe ‐gap metric has a clear frequency domain interpolation of system uncertainties. However, the ‐gap metric between lightly damped systems may be very close to one, and causes difficulty for robust stability analysis as well as control design. In this article, the problem is addressed by adjusting the weight in the loop‐shaping method to reduce the corresponding weighted ‐gap metric at the resonance frequency (RF). To this end the selection of the weight is essential. The RFs of lightly damped systems with different perturbations often appear in a frequency band rather than at a single frequency. Thus, it is hard to investigate the weight's impact on the weighted ‐gap metric based on any specific perturbation. Particularly, the weight may change the sequencing of ‐gap metric of diverse perturbations to the nominal plant, and raises additional issue to the robust stability analysis. The expression of the maximum ‐gap metric in the RF band is derived to tackle these problems. Then, the impact of the weight on the single‐input single‐output weighted ‐gap metric is quantitatively analyzed. This provides a guidance to the loop‐shaping of lightly damped systems. An iterative design of the weight optimization is applied by limiting the upper bound of the frequency response of the shaped plant. The feasibility and advantages of the iterative design is shown by an illustrative example of a single‐phase pulse width modulation rectifier.
Innovative Regenerative Technologies for Enhancing Resilience in Salinity‐Stressed Rice Fields Along the Indonesian Coast: Promoting Net‐Zero Farming Practices to Adapt to Climate Change
Authors: Irwandhi Irwandhi , Khumairah Fiqriah Hanum , Sofyan Emma Trinurani , Ukit Ukit , Satria Rievansyah Eka , Salsabilla Annisya , Sauri Muhamad Sopyan , Simarmata Tualar 
Published: November 2024

ABSTRACTRice cultivation significantly contributes to greenhouse gas (GHG) emissions, particularly methane released from flooded paddy fields, exacerbating climate change. At the same time, rice farming is highly sensitive to climate conditions, with climate change introducing various abiotic stresses, notably salinity stress. This is especially critical in coastal regions like Indonesia, where rising sea levels and land degradation worsen the salinity challenge. This review systematically examines salinity stress in coastal rice cultivation, the impact of climate change on salinity dynamics and crop performance, and the potential of innovative regenerative technologies to enhance resilience and create low‐salinity, net‐zero agricultural systems. We conducted a systematic literature review following PRISMA guidelines, supplemented by a bibliometric analysis using Scopus, employing keywords such as “salinity stress”, “rice”, “agriculture”, “climate change” and “regenerative”. From an initial 2,191 articles, 18 were deemed eligible for further analysis. Findings indicate that increased soil salinity adversely affects rice production, yet innovative strategies such as rhizomicrobiome engineering, salt‐tolerant rice varieties, regenerative soil amendments, irrigation management, agricultural practices offer viable solutions to mitigate salinity stress. Furthermore, adopting net‐zero farming practices can help achieve carbon neutrality in agriculture while significantly reducing GHG emissions. This review highlights the need for a collaborative approach among scientists, farmers, and policymakers to scale these innovations, ensuring their implementation not only in Indonesia but also in other regions facing similar challenges, thereby promoting food security and environmental sustainability in the face of climate change.
Palladium Nanoparticles Stabilized in Ionic Liquid‐Based Periodic Mesoporous Organosilica: An Efficient Heterogeneous Catalyst for Oxidative Acylation of Ketones
Authors: Soni Amit B. , Satishkumar Govindaswamy , Man M. Wong Chi 
Published: November 2024

AbstractNovel heterogeneous catalytic system comprised of palladium nanoparticles (NPs) immobilized into the ionic liquid based periodic mesoporous organosilica (Pd@PMO‐IL) have been described for the model acylation reaction toward the facile construction of acylated ketones. A straightforward grafting method has been adopted for the functionalization of PMO containing 1‐methyl‐3‐(trimethoxysilylpropyl)‐imidazolium chloride (IL) by utilizing uncondensed alkoxy and hydroxy groups, thereby eliminating the need for an additional silicon source. The synthesized catalyst‐ Pd@PMO‐IL was characterized by XRD, N2 adsorption/desorption, TGA, FT‐IR, 29Si(CP‐MAS), 13C(CP‐MAS)‐NMR, XPS, ICP‐OES, FE‐SEM, and HR‐TEM techniques to confirm the anchoring of 1‐methyl‐3‐(trimethoxysilylpropyl)‐imidazolium chloride and Pd in the catalyst. The catalyst Pd@PMO‐IL demonstrated high catalytic activity in the model acylation reaction, along with other aldehyde derivatives to produce corresponding acylated ketones from moderate to excellent yields. Results from XPS analysis revealed the in‐situ reduction of PdII in the fresh catalyst to Pd0 at the reaction condition. HR‐TEM analysis confirmed the presence of 5–9 nm size of Pd NPs formed inside the mesopores of PMO‐IL support. Further, the catalyst was recycled for four consecutive cycles and showed insignificant loss in catalytic activity. The imidazolium in the PMO‐IL support could be the reason for successful stabilization and uniform distribution of insitu generated Pd NPs in the catalyst, resulting in highly active and recyclable catalytic system.
Silver‐Copper Oxide Core‐Shell Nanoparticles/β‐Cyclodextrin Functionalized Single‐Walled Carbon Nanotubes Based Electrochemical Sensor for 4‐Chloro‐3‐Methylphenol Detection
Authors: Akond Umme Solaem , Mahanta Abhinandan , Devi Nirbanya , Jasimuddin Sk. 
Published: November 2024

AbstractChlorophenols are high‐priority organic pollutants that harm the environment and human health. Therefore, it is crucial and urgent to detect and quantify chlorophenols in the environment selectively and sensitively. For this, the introduction of smart nanomaterials to create electrochemical sensors is a noteworthy development. In the present article, a glassy carbon electrode was fabricated by Agcore‐CuOshell nanoparticles (Ag@CuO) and β‐cyclodextrin functionalized single‐walled carbon nanotubes (β‐CD‐fSWCNT) through drop‐casting method (Ag@CuO‐β‐CD‐fSWCNT‐nafion‐GC) and applied for the selective and sensitive detection of chlorophenols, particularly 4‐chloro‐3‐methylphenol (CMP). The Ag@CuO nanoparticles with core‐shell configuration were synthesized and characterized by using various analytical techniques like UV–vis spectroscopy, X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), high‐resolution transmission electron microscopy (HR‐TEM), selected area electron diffraction pattern (SAED), and energy dispersive X‐ray spectroscopy (EDS). The electrode fabrication steps were monitored and confirmed by using field‐emission scanning electron microscopy (FE‐SEM), attenuated total reflectance – Fourier transform infrared spectroscopy (ATR‐FTIR), and cyclic voltammetry (CV) studies. The electrochemical sensing of CMP was done by using differential pulse voltammetry (DPV) and the results showed that the peak current is linear with increasing concentration in the range of 10–50 µM at the modified electrode. The detection limit of 1.4 nM (S/N = 3) was obtained with a correlation coefficient of 0.998. The electrode showed good reproducibility with a relative standard deviation (RSD) of 1.56% and sensitivity of 15.67 µAcm−2µM−1 toward CMP. The sensor showed anti‐interference properties and long‐term stability. The real sample analysis results indicated that the sensor electrode could be used to detect low concentrations of CMP in wastewater with a recovery of 103.3% and has good potential for use in practical applications.
Buried Interface Modification Toward Efficient CsPbI2.2Br0.8 Based Monolithic Perovskite/Organic Tandem Solar Cells
Authors: Li Xin‐Yi , Wu Zhuxia , Yao Qin , Chen Lu‐Yao , Zeng Wang , Sun Qi , Lin Francis R. , Jen Alex K.‐Y. , Shi Tingting , Yip Hin‐Lap , Xie Yue‐Min , Fung Man‐Keung 
Published: November 2024

AbstractWide‐bandgap perovskite sub‐cells (WPSCs), one of the most crucial components of perovskite‐based tandem solar cells (PTSCs), play a critical role in determining the performance of tandem devices. However, confined by the compromised crystallization properties of wide‐bandgap perovskites, WPSCs exhibit significantly lower efficiency than their theoretical limit. In particular, for n‐i‐p structured all‐inorganic WPSCs (AIWPSCs), severe nonradiative recombination due to the buried interface defects severely decreases the photovoltaic performance. Herein, an efficient propionate group (PA−) based ionic liquid, methylamine propionate (MAPA), is introduced into the perovskite/electron‐transport layer (ETL) interface to passivate the buried interface of AIWPSCs. The intense interaction between the PA− and Pb–Pb dimer effectively heals the defects at the buried interface and facilitates a more homogeneous elemental distribution in the perovskite film. As a result, CsPbI2.2Br0.8‐based AIWPSCs with a high power conversion efficiency (PCE) of 18.29% and open‐circuit voltage (VOC) of 1.33 V are obtained, which illustrates the superiority of MAPA in optimizing the performance of AIWPSCs. Moreover, by integrating these AIWPSCs with small‐bandgap organic solar cells (SOSCs), high performance n‐i‐p structured all‐inorganic perovskite/organic tandem solar cells (AIPOTSCs) with a high PCE of 23.19% and VOC of 2.08 V are also achieved.
Novel Single Perovskite Material for Visible‐Light Photocatalytic CO2 Reduction via Joint Experimental and DFT Study
Authors: Samadova Ulkar , Aligayev Amil , Ismail Pir Muhammad , Liu Min , Safarzade Ulviya , Hashimov Arif , Zakiyeva Ilhame , Rabbani Syeda Sughra , Khan Habib , Huang Qing , Wu Xiaoqiang , Zhong Li , Raziq Fazal , Yi Jiabao , Xia Pengfei , Qiao Liang 
Published: November 2024

AbstractDeveloping advanced and economically viable technologies for the capture and utilization of carbon dioxide (CO2) is crucial for sustainable energy production from fossil fuels. Converting CO2 into valuable chemicals and fuels is a promising approach to mitigate atmospheric CO2 levels. Among various methods, photocatalytic reduction stands out for its potential to reduce emissions and produce useful products. Here, novel perovskite ZnMoFeO3 (ZMFO) nanosheets are presented as promising semiconductor photocatalysts for CO2 reduction. Experimental results show that ZMFO has a narrow bandgap, exceptional visible light response, large specific surface area, high crystallinity, and various surface‐active sites, leading to an impressive photocatalytic CO2 reduction activity of 24.87 µmolg−1h−1 and strong stability. Theoretical calculations reveal that CO2 conversion into CO and CH4 on the ZMFO surface follows formaldehyde and carbine pathways. This study provides significant insights into designing innovative perovskite oxide‐based photocatalysts for economical and efficient CO2 reduction systems.
Hierarchically Structured and Tunable Hydrogel Patches: Design, Characterization, and Application
Authors: Steinbeck Lea , Paul Richard , Litke Julia , Karkoszka Isabel , Wiese G. Philip , Linkhorst John , De Laporte Laura , Wessling Matthias 
Published: November 2024

AbstractRecent studies show the importance of hydrogel geometry for various applications, such as encoding, micromachines, or tissue engineering. However, fabricating hydrogel structures with micrometer‐sized features, advanced geometry, and precise control of porosity remains challenging. This work presents hierarchically structured hydrogels, so‐called hydrogel patches, with internally deviating regions on a micron‐scale. These regions are defined in a one‐step, high‐throughput fabrication process via stop‐flow lithography. Between the specified projection pattern during fabrication, an interconnecting lower crosslinked and more porous hydrogel network forms, resulting in at least two degrees of crosslinking within the patches. A detailed investigation of patch formation is performed for two material systems and pattern variations, revealing basic principles for reliable patch formation. In addition to the two defined crosslinked regions, further regions are implemented in the patches by adapting the pattern accordingly. The variations in pattern geometry impact the mechanical characteristics of the hydrogel patches, which display pattern‐dependent compression behavior due to predefined compression points. Cell culture on patches, as one possible application, reveals that the patch pattern determines the cell area of L929 mouse fibroblasts. These results introduce hierarchically structured hydrogel patches as a promising and versatile platform system with high customizability.
How Much Force is Needed to Kill a Single Bacterium?
Authors: Vadillo‐Rodríguez Virginia , Pedraz Patricia , Flors Cristina 
Published: November 2024

AbstractThe interaction between bacteria and nanomaterials, particularly from a physical or mechanical perspective, has emerged as a topic of significant interest in both science and medicine. Mechanobactericidal nanomaterials, which exert antimicrobial effects through purely physical mechanisms, hold promise as alternative strategies to combat bacterial resistance to traditional antibiotics. High‐aspect‐ratio nanoparticles and surface topographies are being engineered to enhance their mechanobactericidal properties. However, progress in this field is hindered by an incomplete understanding of how these materials induce mechanical cell death in bacteria. This review examines the role of atomic force microscopy (AFM) nanoindentation in quantifying forces required to rupture the bacterial cell wall. The reported values range from nN to a few tens of nN, depending on the type of bacterium and the experimental conditions used. The potential effect of AFM tip properties, loading speed, bacterial immobilization strategy, or environmental conditions on the measured rupture values are discussed. This perspective also highlights the complexities of modeling bacterial cell rupture and the importance of pressure as a parameter for standardizing results across experiments. Furthermore, the implications of these quantitative insights to understand the mechanisms of action of mechanobactericidal nanomaterials are discussed.
A Highly Compatible Deep Eutectic Solvent‐Based Poly(ethylene) Oxide Polymer Electrolyte to Enable the Stable Operation of 4.5 V Lithium Metal Batteries
Authors: Liu Qi , Dan Yongjie , Niu Yanhua , Lv Yadong , Li Guangxian 
Published: November 2024

AbstractInsufficient ionic conductivity, limited Li+ transfer number (tLi+), and narrow electrochemical windows have heavily restricted the actual application of PEO （poly(ethylene) oxide）‐based polymer electrolytes (PEs). Herein, a novel deep eutectic solvent (DES)‐based PEO PE for stabilizing high voltage lithium metal battery (LMB) is designed. The DES reduces the crystallinity of PEO while promoting the dissociation of LiTFSI to release more free Li+, thus facilitating the transport of Li+ in the PEO matrix. In addition, the interaction between DES and the PEO, thereby improving the stability of the PEO‐based PE under high voltage. Consequently, the PEO‐DES‐FEC (for short PDF) PE possesses satisfactory ionic conductivity, good mechanical properties, and high electrochemical stability. Meanwhile, PDF PE can build a robust/uniform LiF‐rich solid electrolyte interface (SEI) to ensure electrode/electrolyte interface stability. As a concept proof, the Li symmetrical battery and Li||LiFePO4 LMBs of PDF PE exhibit good cycle stability. Applied to the high voltage Li||NCM811 LMBs, the PDF PE‐based cell has excellent cycling performance at 4.3 and 4.5 V. This tactic is one of the successful demonstrations of PEO‐based electrolytes under 4.5 V high voltage conditions, which breaks through the voltage constraint of conventional PEO‐based PEs.
Single‐Atom Pt Anchored Polyoxometalate as Electron‐Proton Shuttle for Efficient Photoreduction of CO2 to CH4 Catalyzed by NiCo Layered Doubled Hydroxide
Authors: Cai Ailin , Hu Guicong , Chen Wei , An Sai , Qi Bo , Song Yu‐Fei 
Published: November 2024

AbstractThe crucial role of active hydrogen (H*) in photocatalytic CO2 methanation has long been overlooked, although recently, accelerating proton‐coupled electron transfer (PCET) processes to enhance CH4 productivity and selectivity has garnered significant attention. Herein, a single‐atom Pt‐anchored H3PMo12O40 (Pt1‐PMo12) is applied as an efficient proton–electron shuttle to facilitate the photocatalytic performance of NiCo layered double hydroxide (NiCo‐LDH). The resultant Pt1‐PMo12@NiCo‐LDH exhibited superior CH4 productivity (723 µmol g−1 h−1) with CH4 selectivity of 82.3%, showcasing a 24.9 times productivity enhancement over NiCo‐LDH (29 µmol g−1 h−1). Systematic investigations revealed that abundant H* is generated by the dissociation of H2O on Pt1 sites and stored within Pt1‐PMo12. Subsequently, the multiple H* rapidly migrated from Pt1‐PMo12 to the catalytic sites on NiCo‐LDH by the engineered strong Mo─O─Ni/Co bonds, thereby significantly expediting the PCET process. The in situ DRIFTS and theoretical calculations elucidated that the Pt1‐PMo12 decreased the energy barrier for *CO protonation to *CHO (0.38–0.18 eV) and optimized the rate‐determining step of *CH3 to *CH4 (0.64 eV), thus promoting highly active and selective CH4 generation. This work provided novel insights into achieving efficient photocatalytic CO2 methanation by modulating the fast generation and transport of active H*.