bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modulation Engineering of Electromagnetic Wave Absorption Performance of Layered Double Hydroxides Derived Hollow Metal Carbides Integrating Corrosion Protection
Authors: Zhou Zehua , Zhou Xinfeng , Lan Di , Zhang Yan , Jia Zirui , Wu Guanglei , Yin Pengfei 
Published: October 2023

AbstractLayered double hydroxides (LDHs) with unique layered structure and atomic composition are limited in the field of electromagnetic wave absorption (EMA) due to their poor electrical conductivity and lack of dielectric properties. In this study, the EMA performance and anticorrosion of hollow derived LDH composites are improved by temperature control and composition design using ZIF‐8 as a sacrifice template. Diverse regulation modes result in different mechanisms for EMA. In the temperature control process, chemical reactions tune the composition of the products and construct a refined structure to optimize the LDHs conductivity loss. Additionally, the different phase interfaces generated by the control components optimize the impedance matching and enhance the interfacial polarization. The results show that the prepared NCZ (Ni3ZnC0.7/Co3ZnC@C) has a minimum reflection loss (RLmin) of ‐58.92 dB with a thickness of 2.4 mm and a maximum effective absorption bandwidth (EABmax) of 7.36 GHz with a thickness of 2.4 mm. Finally, due to its special structure and composition, the sample exhibits excellent anticorrosion properties. This work offers essential knowledge for designing engineering materials derived from metal organic framework (MOF) with cutting‐edge components and nanostructures.
Electrodeposited Poly(5‐Amino‐2‐Naphthalenesulfonic Acid‐co‐o‐Aminophenol) as the Electrode Material for Flexible Supercapacitor
Authors: Wang Chao , Yang Yifan , Zhou Zixiang , Li Yihao , Li Yvpei , Hou Wentong , Liu Shuling , Tian Yu 
Published: October 2023

AbstractCopolymers of 5‐amino‐2‐naphthalenesulfonic acid (ANS) and o‐aminophenol (oAP) are electropolymerized on carbon cloth substrate from aqueous solutions, and the electropolymerization process is investigated using electrochemical quartz‐crystal microbalance. The surface of the copolymer (PANS‐co‐oAP) appears rough and is capable to store charge as the battery‐type electrode in 1 m H2SO4 (102.9 mAh g−1 at 1 A g−1) or in 1 m ZnSO4 (79.75 mAh g−1 at 1 A g−1) aqueous solutions. Compared with PANS and PoAP, the high specific capacity of the PANS‐co‐oAP is originated from the increased number of electrochemically active sites and increased diffusion rates of ions. Evidence of amino/imino and hydroxyl/carbonyl groups redox processes and cation insertion and extraction are given by ex situ X‐ray photoelectron spectroscopy. When used as the electrode material in the flexible solid‐state supercapacitors, the specific capacitance is at 37.9 F g−1 which does not significantly alter with the bending angle. The flexible solid‐state supercapacitor shows a specific energy of 5.4 Wh kg−1 and a power density of 250.3 W kg−1 at 0.5 A g−1, and a high capacitance retention (88.2%) after 3000 cycles at 5 A g−1 is achieved.
1D/3D Heterogeneous Assembling Body of Cobalt Nitrides for Highly Efficient Overall Hydrazine Splitting and Supercapacitors
Authors: Xiong Dengke , He Xiaoyang , Liu Xuan , Gong Shuaiqi , Xu Chen , Tu Zhentao , Wu Deli , Wang Jianying , Chen Zuofeng 
Published: October 2023

AbstractHerein, the construction of a heterostructured 1D/3D CoN‐Co2N@NF (nickel foam) electrode used for thermodynamically favorable hydrazine oxidation reaction (HzOR), as an alternative to sluggish anodic oxygen evolution reaction (OER) in water splitting for hydrogen production, is reported. The electrode exhibits remarkable catalytic activities, with an onset potential of −0.11 V in HzOR and −71 mV for a current density of 10 mA cm−2 in hydrogen evolution reaction (HER). Consequently, an extraordinary low cell voltage of 53 mV is required to achieve 10 mA cm−2 for overall hydrazine splitting in a two‐electrode system, demonstrating significant energy‐saving advantages over conventional water splitting. The HzOR proceeds through the 4e− reaction pathway to release N2 while the 1e− pathway to emit NH3 is uncompetitive, as evidenced by differential electrochemical mass spectrometric measurements. The X‐ray absorption spectroscopy, in situ Raman spectroscopy, and theoretical calculations identify cobalt nitrides rather than corresponding oxides/(oxy)hydroxides as catalytic species for HzOR and illustrate advantages of heterostructured CoN‐Co2N in optimizing adsorption energies of intermediates/reagents and promoting catalytic activities toward both HzOR and HER. The CoN‐Co2N@NF is also an excellent supercapacitive material, exhibiting an increased specific capacity (938 F g−1 at 1 A g−1) with excellent cycling stability (95.8%, 5000 cycles).
Size Effect for Inhibiting Polysulfides Shuttle in Lithium‐Sulfur Batteries
Authors: Kang Xiaoya , He Tianqi , Zou Rong , Niu Shengtao , Ma Yingxia , Zhu Fuliang , Ran Fen 
Published: October 2023

AbstractIt is undeniable that the dissolution of polysulfides is beneficial in speeding up the conversion rate of sulfur in electrochemical reactions. But it also brings the bothersome “shuttle effect”. Therefore, if polysulfides can be retained on the cathode side, the efficient utilization of the polysulfides can be guaranteed to achieve the excellent performance of lithium‐sulfur batteries. Based on this idea, considerable methods have been developed to inhibit the shuttling of polysulfides. It is necessary to emphasize that no matter which method is used, the solvation mechanism, and existence forms of polysulfides are essential to analyze. Especially, it is important to clarify the sizes of different forms of polysulfides when using the size effect to inhibit the shuttling of polysulfides. In this review, a comprehensive summary and in‐depth discussion of the solvation mechanism, the existing forms of polysulfides, and the influencing factors affecting polysulfides species are presented. Meanwhile, the size of diverse polysulfide species is sorted out for the first time. Depending on the size of polysulfides, tactics of using size effect in cathode, separator, and interlayer parts are elaborated. Finally, a design idea of materials pore size is proposed to satisfy the use of size effect to inhibit polysulfides shuttle.
Copper Single‐Atom Catalysts—A Rising Star for Energy Conversion and Environmental Purification: Synthesis, Modification, and Advanced Applications
Authors: Wang Biting , Fu Yukui , Xu Fuhang , Lai Cui , Zhang Mingming , Li Ling , Liu Shiyu , Yan Huchuan , Zhou Xuerong , Huo Xiuqin , Ma Dengsheng , Wang Neng , Hu Xiaorui , Fan Xing , Sun Hao 
Published: October 2023

AbstractFuture renewable energy supply and green, sustainable environmental development rely on various types of catalytic reactions. Copper single‐atom catalysts (Cu SACs) are attractive due to their distinctive electronic structure (3d orbitals are not filled with valence electrons), high atomic utilization, and excellent catalytic performance and selectivity. Despite numerous optimization studies are conducted on Cu SACs in terms of energy conversion and environmental purification, the coupling among Cu atoms–support interactions, active sites, and catalytic performance remains unclear, and a systematic review of Cu SACs is lacking. To this end, this work summarizes the recent advances of Cu SACs. The synthesis strategies of Cu SACs, metal–support interactions between Cu single atoms and different supports, modification methods including modification for carriers, coordination environment regulating, site distance effect utilizing, and dual metal active center catalysts constructing, as well as their applications in energy conversion and environmental purification are emphatically introduced. Finally, the opportunities and challenges for the future Cu SACs development are discussed. This review aims to provide insight into Cu SACs and a reference for their optimal design and wide application.
Bioorthogonal Aptamer‐ATTEC Conjugates for Degradation of Alpha‐Synuclein via Autophagy‐Lysosomal Pathway
Authors: Liao Xiaofeng , Qin Geng , Liu Zhenqi , Ren Jinsong , Qu Xiaogang 
Published: October 2023

AbstractAutophagosome‐tethering compound (ATTEC) technology has recently been emerging as a novel approach for degrading proteins of interest (POIs). However, it still faces great challenges in how to design target‐specific ATTEC molecules. Aptamers are single‐stranded DNA or RNA oligonucleotides that can recognize their target proteins with high specificity and affinity. Here, ATTEC is combined with aptamers for POIs degradation. As a proof of concept, pathological protein α‐synuclein (α‐syn) is chosen as the target and an efficient α‐syn degrader is generated. Aptamer as a targeting warhead of α‐syn is conjugated with LC3B‐binding compound 5,7‐dihydroxy‐4‐phenylcoumarin (DP) via bioorthogonal click reaction. It is demonstrated that the aptamer conjugated with DP is capable of clearing α‐syn through LC3 and autophagic degradation. These results indicate that aptamer‐based ATTECs are a versatile approach to degrade POIs by taking advantage of the well‐defined different aptamers for targeting diverse proteins, which provides a new way for the design of ATTECs to degradation of targeted proteins.
G‐Quadruplex/Hemin DNAzyme‐Functionalized Silver Nanoclusters with Synergistic Antibacterial and Wound Healing Capabilities for Infected Wound Management
Authors: Zhu Jiaojiao , Wen Tiao , Qu Shuangquan , Li Qingnian , Liu Biwu , Zhou Wenhu 
Published: October 2023

AbstractSystematic management of infected wounds requires simultaneous antiinfection and wound healing, which has become the current treatment dilemma. Recently, a multifunctional silver nanoclusters (AgNCs)‐based hydrogel dressing to meet these demands is developed. Here a diblock DNA with a cytosine‐rich fragment (as AgNCs template) and a guanine‐rich fragment (to form G‐quadruplex/hemin DNAzyme, termed G4/hemin) is designed, for G4/hemin functionalization of AgNCs. Inside bacteria, G4/hemin can not only accelerate the oxidative release of Ag+ from AgNCs but also generate reactive oxygen species (ROS) via catalase‐ and peroxidase‐mimic activities, which enhance the antibacterial effect. On the other hand, the AgNCs exhibit robust anti‐inflammatory and antioxidative activities to switch M1 macrophages into M2 phenotype, which promotes wound healing. Moreover, the hemin is released to upregulate the heme oxygenase‐1, an intracellular enzyme that can relieve oxidative stress, which significantly alleviates the cytotoxicity of silver. As a result, such silver‐based dressing achieves potent therapeutic efficacy on infected wounds with excellent biosafety.
Atomic‐Level Regulation of Cu‐Based Electrocatalyst for Enhancing Oxygen Reduction Reaction: From Single Atoms to Polymetallic Active Sites
Authors: Zhang Hui , Li Yichuan , Zeng Lingyou , Pan Yuan 
Published: October 2023

AbstractThe slow kinetics of cathodic oxygen reduction reactions (ORR) in fuel cells and the high cost of commercial Pt‐based catalysts limit their large‐scale application. Cu‐based single‐atom catalysts (SACs) have received increasing attention as a promising ORR catalyst due to their high atom utilization, high thermodynamic activity, adjustable electronic structure, and low cost. Herein, the recent research progress of Cu‐based catalysts is reviewed from single atom to polymetallic active sites for ORR. First, the design and synthesis method of Cu‐based SACs are summarized. Then the atomic‐level structure regulation strategy of Cu‐based catalyst is proposed to improve the ORR performance. The different ORR catalytic mechanism based on the different Cu active sites is further revealed. Finally, the design principle of high‐performance Cu‐based SACs is proposed for ORR and the opportunities and challenges are further prospected.
Low‐Potential Iodide Oxidation Enables Dual‐Atom CoFe─N─C Catalysts for Ultra‐Stable and High‐Energy‐Efficiency Zn–Air Batteries
Authors: Fan Hong‐Shuang , Liang Xiongyi , Ma Fei‐Xiang , Zhang Guobin , Liu Zheng‐Qi , Zhen Liang , Zeng Xiao Cheng , Xu Cheng‐Yan 
Published: October 2023

AbstractThe low energy efficiency and limited cycling life of rechargeable Zn–air batteries (ZABs) arising from the sluggish oxygen reduction/evolution reactions (ORR/OERs) severely hinder their commercial deployment. Herein, a zeolitic imidazolate framework (ZIF)‐derived strategy associated with subsequent thermal fixing treatment is proposed to fabricate dual‐atom CoFe─N─C nanorods (Co1Fe1─N─C NRs) containing atomically dispersed bimetallic Co/Fe sites, which can promote the energy efficiency and cyclability of ZABs simultaneously by introducing the low‐potential oxidation redox reactions. Compared to the mono‐metallic nanorods, Co1Fe1─N─C NRs exhibit remarkable ORR performance including a positive half‐wave potential of 0.933 V versus reversible hydrogen electrode (RHE) in alkaline electrolyte. Surprisingly, after introducing the potassium iodide (KI) additive, the oxidation overpotential of Co1Fe1─N─C NRs to reach 10 mA cm−2 can be significantly reduced by 395 mV compared to the conventional destructive OER. Theoretical calculations show that the markedly decreased overpotential of iodide oxidation can be ascribed to the synergistic effects of neighboring Co─Fe diatomic sites as the unique adsorption sites. Overall, aqueous ZABs assembled with Co1Fe1─N─C NRs and KI as the air–cathode catalyst and electrolyte additive, respectively, can deliver a low charging voltage of 1.76 V and ultralong cycling stability of over 230 h with a high energy efficiency of ≈68%.
Accelerating Patterned Vascularization Using Granular Hydrogel Scaffolds and Surgical Micropuncture
Authors: Ataie Zaman , Horchler Summer , Jaberi Arian , Koduru Srinivas V. , El‐Mallah Jessica C. , Sun Mingjie , Kheirabadi Sina , Kedzierski Alexander , Risbud Aneesh , Silva Angelo Roncalli Alves E , Ravnic Dino J. , Sheikhi Amir 
Published: October 2023

AbstractBulk hydrogel scaffolds are common in reconstructive surgery. They allow for the staged repair of soft tissue loss by providing a base for revascularization. Unfortunately, they are limited by both slow and random vascularization, which may manifest as treatment failure or suboptimal repair. Rapidly inducing patterned vascularization within biomaterials has profound translational implications for current clinical treatment paradigms and the scaleup of regenerative engineering platforms. To address this long‐standing challenge, a novel microsurgical approach and granular hydrogel scaffold (GHS) technology are co‐developed to hasten and pattern microvascular network formation. In surgical micropuncture (MP), targeted recipient blood vessels are perforated using a microneedle to accelerate cell extravasation and angiogenic outgrowth. By combining MP with an adjacent GHS with precisely tailored void space architecture, microvascular pattern formation as assessed by density, diameter, length, and intercapillary distance is rapidly guided. This work opens new translational opportunities for microvascular engineering, advancing reconstructive surgery, and regenerative medicine.
All‐Solid‐State Mg–Air Battery Enhanced with Free‐Standing N‐Doped 3D Nanoporous Graphene
Authors: Xi Zeyu , Han Jiuhui , Jin Zeyu , Hu Kailong , Qiu Hua‐Jun , Ito Yoshikazu 
Published: October 2023

AbstractNitrogen (N) doping of graphene with a three‐dimensional (3D) porous structure, high flexibility, and low cost exhibits potential for developing metal–air batteries to power electric/electronic devices. The optimization of N‐doping into graphene and the design of interconnected and monolithic graphene‐based 3D porous structures are crucial for mass/ion diffusion and the final oxygen reduction reaction (ORR)/battery performance. Aqueous‐type and all‐solid‐state primary Mg–air batteries using N‐doped nanoporous graphene as air cathodes are assembled. N‐doped nanoporous graphene with 50–150 nm pores and ≈99% porosity is found to exhibit a Pt‐comparable ORR performance, along with satisfactory durability in both neutral and alkaline media. Remarkably, the all‐solid‐state battery exhibits a peak power density of 72.1 mW cm−2; this value is higher than that of a battery using Pt/carbon cathodes (54.3 mW cm−2) owing to the enhanced catalytic activity induced by N‐doping and rapid air breathing in the 3D porous structure. Additionally, the all‐solid‐state battery demonstrates better performances than the aqueous‐type battery owing to slow corrosion of the Mg anode by solid electrolytes. This study sheds light on the design of free‐standing and catalytically active 3D nanoporous graphene that enhances the performance of both Mg–air batteries and various carbon‐neutral‐technologies using neutral electrolytes.
Si‐Based High‐Entropy Anode for Lithium‐Ion Batteries
Authors: Lei Xincheng , Wang Yingying , Wang Jiayi , Su Yi , Ji Pengxiang , Liu Xiaozhi , Guo Shengnan , Wang Xuefeng , Hu Qingmiao , Gu Lin , Zhang Yuegang , Yang Rui , Zhou Gang , Su Dong 
Published: October 2023

AbstractUp to now, only a small portion of Si has been utilized in the anode for commercial lithium‐ion batteries (LIBs) despite its high energy density. The main challenge of using micron‐sized Si anode is the particle crack and pulverization due to the volume expansion during cycling. This work proposes a type of Si‐based high‐entropy alloy (HEA) materials with high structural stability for the LIB anode. Micron‐sized HEA‐Si anode can deliver a capacity of 971 mAhg−1 and retains 93.5% of its capacity after 100 cycles. In contrast, the silicon–germanium anode only retains 15% of its capacity after 20 cycles. This study has discovered that including HEA elements in Si‐based anode can decrease its anisotropic stress and consequently enhance ductility at discharged state. By utilizing in situ X‐ray diffraction and transmission electron microscopy analyses, a high‐entropy transition metal doped Lix(Si/Ge) phase is found at lithiated anode, which returns to the pristine HEA phase after delithiation. The reversible lithiation and delithiation process between the HEA phases leads to intrinsic stability during cycling. These findings suggest that incorporating high‐entropy modification is a promising approach in designing anode materials toward high‐energy density LIBs.
Flexible Transparent Conductive Electrodes: Unveiling Growth Mechanisms, Material Dimensions, Fabrication Methods, and Design Strategies
Authors: Kumar Sunil , Seo Yongho 
Published: October 2023

AbstractFlexible transparent conductive electrodes (FTCEs) constitute an indispensable component in state‐of‐the‐art electronic devices, such as wearable flexible sensors, flexible displays, artificial skin, and biomedical devices, etc. This review paper offers a comprehensive overview of the fabrication techniques, growth modes, material dimensions, design, and their impacts on FTCEs fabrication. The growth modes, such as the “Stranski–Krastanov growth,” “Frank–van der Merwe growth,” and “Volmer–Weber growth” modes provide flexibility in fabricating FTCEs. Application of different materials including 0D, 1D, 2D, polymer composites, conductive oxides, and hybrid materials in FTCE fabrication, emphasizing their suitability in flexible devices are discussed. This review also delves into the design strategies of FTCEs, including microgrids, nanotroughs, nanomesh, nanowires network, and “kirigami”‐inspired patterns, etc. The pros and cons associated with these materials and designs are also addressed appropriately. Considerations such as trade‐offs between electrical conductivity and optical transparency or “figure of merit (FoM),” “strain engineering,” “work function,” and “haze” are also discussed briefly. Finally, this review outlines the challenges and opportunities in the current and future development of FTCEs for flexible electronics, including the improved trade‐offs between optoelectronic parameters, novel materials development, mechanical stability, reproducibility, scalability, and durability enhancement, safety, biocompatibility, etc.
Signal Amplification Strategy Design in Nanozyme‐Based Biosensors for Highly Sensitive Detection of Trace Biomarkers
Authors: Wang Mengting , Liu Hongxing , Fan Kelong 
Published: October 2023

AbstractNanozymes show great promise in enhancing disease biomarker sensing by leveraging their physicochemical properties and enzymatic activities. These qualities facilitate signal amplification and matrix effects reduction, thus boosting biomarker sensing performance. In this review, recent studies from the last five years, concentrating on disease biomarker detection improvement through nanozyme‐based biosensing are examined. This enhancement primarily involves the modulations of the size, morphology, doping, modification, electromagnetic mechanisms, electron conduction efficiency, and surface plasmon resonance effects of nanozymes for increased sensitivity. In addition, a comprehensive description of the synthesis and tuning strategies employed for nanozymes has been provided. This includes a detailed elucidation of their catalytic mechanisms in alignment with the fundamental principles of enhanced sensing technology, accompanied by the presentation of quantitatively analyzed results. Moreover, the diverse applications of nanozymes in strip sensing, colorimetric sensing, electrochemical sensing, and surface‐enhanced Raman scattering have been outlined. Additionally, the limitations, challenges, and corresponding recommendations concerning the application of nanozymes in biosensing have been summarized. Furthermore, insights have been offered into the future development and outlook of nanozymes for biosensing. This review aims to serve not only as a reference for enhancing the sensitivity of nanozyme‐based biosensors but also as a catalyst for exploring nanozyme properties and their broader applications in biosensing.