bluuebunny/crossref_metadata_2025_split huggingface dataset:
Stable, Cost‐Effective TiN‐Based Plasmonic Nanocomposites with over 99% Solar Steam Generation Efficiency
Authors: Wang Yong , Liu Xiaolei , Zhang Qingzhe , Wang Chen , Huang Shengyun , Liu Yannan , Yu Ting , Yang Ruiqi , Chen Guozhu , Chaker Mohamed , Ma Dongling 
Published: January 2023

AbstractPlasmonic nanoparticles (NPs), such as Au, Ag, and Cu, are considered as promising photothermal materials and attract extensive attention for freshwater production by solar steam generation. However, high cost, narrow absorption range and/or poor stability greatly limit their practical applications. Herein, a high‐efficiency solar energy conversion material consisting of low‐cost non‐metal, extremely thermally‐stable plasmonic TiN NPs and hydrophilic semi‐reduced graphene oxide (semi‐rGO), with broadband solar absorption capability, by a fast in situ microwave reduction method is prepared. The 2D semi‐rGO serves as a support for the loading of plasmonic NPs, and meanwhile accelerates the transport and evaporation of water due to its hydrophilicity. Then, decoration of plasmonic TiN NPs further enhances the solar photon absorption and hydrophilicity while suppressing the heat loss, thanks to the layered structure of TiN/semi‐rGO, improving overall solar energy utilization. Owing to the enhanced absorption and unique layered nanostructure with strong interfacial interaction, the optimal sample of TiN/semi‐rGO‐25% absorber achieves a high and stable water evaporation rate of ≈1.76 kg m−2 h−1 with an energy efficiency as high as 99.1% under 1 sun illumination. Furthermore, this plasmonic TiN/semi‐rGO absorber is capable of producing high‐quality freshwater from sustainable seawater desalination and wastewater purification processes.
Crystallographic Insight of Reduced Lattice Volume Expansion in Mesoporous Cu2+‐Doped TiNb2O7 Microspheres during Li+ Insertion
Authors: Yang Chengfu , Ma Dongwei , Yang Jing , Manawan Maykel , Zhao Ting , Feng Yuanyuan , Li Jiahui , Liu Zhongzhu , Zhang Yong‐Wei , Von Dreele Robert B. , Toby Brian H. , Albarrán Carlos Ponce de León , Pan Jia Hong 
Published: January 2023

AbstractTiNb2O7 represents a promising anode material for lithium‐ion batteries (LIBs), but its practical applications are currently hampered by the non‐negligible volumetric expansion and contraction during the charge/discharge process and the sluggish ion/electron kinetics. A combination technique is reported by systematically optimizing the porous and spherical morphology, crystal structure, and surface decoration of mesoporous Cu2+‐doped TiNb2O7 microspheres to enhance the electrochemical Li+ storage performance and stability simultaneously. The Cu2+ dopants preferentially replace Ti4+ in crystal lattices, which decreases the Li+ diffusion barrier and increases the electronic conductivity, as confirmed by density functional theory (DFT) calculation and demonstrated by diverse electrochemical characterizations. The successful Cu2+ doping significantly reduces the lattice expansion coefficient from 7.26% to 4.61% after Li+ insertion along the b‐axis of TiNb2O7, as visualized from in situ and ex situ XRD analysis. The optimal 5% Cu2+‐doped TiNb2O7 with surface coating of N‐doped carbon exhibits significantly enhanced specific capacity and rate and cyclic performances in both half‐ and full‐cell configurations, demonstrating an excellent electrochemical behavior for fast‐charging LIB applications.
Sonication‐Responsive Organic Afterglow Emulsions
Authors: Deng Xinjian , Huang Ju , Li Jiuyang , Wang Guangming , Zhang Kaka 
Published: January 2023

AbstractIn contrast to their fluorescence counterparts, stimuli‐responsive organic afterglow materials display distinct advantages to function normally in the presence of strong fluorescence background. However, most of the stimuli‐responsive afterglow materials can only work in their solid states with those in aqueous medium being rarely reported. In addition, the types of these materials are limited to mechanical force‐, pH‐, ion‐, and temperature‐responsive ones. Here, a serendipitous finding of sonication‐responsive organic afterglow emulsions in aqueous medium is reported. The afterglow emulsions are produced by dopant‐matrix strategy and emulsion technique. In‐depth studies reveal that the key to achieve the sonication responsiveness is the selection of a specialized organic matrix that can form microcrystalline particles in aqueous medium with the aid of surfactants. In matrix's microcrystalline state, the triplet excited states of luminescent dopant within the matrix can be protected to exhibit room‐temperature afterglow. Under sonication, matrix's microcrystalline structure can be disrupted and consequently the triplet excited states of luminescent dopants lose protection to show afterglow quenching. To the best of the authors’ knowledge, this study represents the first report of sonication‐responsive afterglow materials in aqueous medium, which show promising biomedical applications.
Tumor Cell Nanovaccines Based on Genetically Engineered Antibody‐Anchored Membrane
Authors: Li Yuanke , Zhang Haoqi , Wang Ruikun , Wang Yuan , Li Ruonan , Zhu Mingsheng , Zhang Xiangyun , Zhao Zhen , Wan Yajuan , Zhuang Jie , Zhang Hongkai , Huang Xinglu 
Published: January 2023

AbstractDespite the promise in whole‐tumor cell vaccines, a key challenge is to overcome the lack of costimulatory signals. Here, agonistic‐antibody‐boosted tumor cell nanovaccines are reported by genetically engineered antibody‐anchored membrane (AAM) technology, capable of effectively activating costimulatory pathways. Specifically, the AAM can be stably constructed following genetic engineering of tumor cell membranes with anti‐CD40 single chain variable fragment (scFv), an agonistic antibody to induce costimulatory signals. The nanovaccines are versatilely designed and obtained based on the anti‐CD40 scFv‐anchored membrane and nanotechnology. Following vaccination, the anti‐CD40 scFv‐anchored membrane nanovaccine (Nano‐AAM/CD40) significantly facilitates dendritic cell maturation in CD40‐humanized transgenic mice and subsequent adaptive immune responses. Compared to membrane‐based nanovaccines alone, the enhanced antitumor efficacy in both “hot” and “cold” tumor models of the Nano‐AAM/CD40 demonstrates the importance of agonistic antibodies in development of tumor‐cell‐based vaccines. To expand the design of nanovaccines, further incorporation of cell lysates into the Nano‐AAM/CD40 to conceptually construct tumor cell‐like nanovaccines results in boosted immune responses and improved antitumor efficacy against malignant tumors inoculated into CD40‐humanized transgenic mice. Overall, this genetically engineered AAM technology provides a versatile design of nanovaccines by incorporation of tumor‐cell‐based components and agonistic antibodies of costimulatory immune checkpoints.
Graphene Induced High Thermoelectric Performance in ZnO/Graphene Heterostructure
Authors: Marfoua Brahim , Hong Jisang 
Published: January 2023

AbstractDespite the low thermoelectric (TE) efficiency of graphene, its flexibility features are attractive for flexible and wearable next‐generation thermoelectric applications. So, it will be highly desirable to synthesize graphene‐based high TE material. Hence, the possibility of significant enhancement of the TE performance in ZnO/graphene heterostructure is investigated. The ZnO monolayer has a direct band gap of 3.3 eV, while a band gap of 5 meV in the ZnO/graphene heterostructure is found. The highest ZT ≈ 2.4 in the n‐doped ZnO/graphene heterostructure at 500 K is obtained, whereas the ZnO monolayer shows ZT ≈ 1.3 at 700 K. Particularly, this giant ZT in the ZnO/graphene heterostructure is found even at a low carrier concentration (≈1011 carrier cm−2). Besides, the ZnO/graphene heterostructure also displays a ZT ≈ 0.8 even at 300 K with a very low carrier concentration (≈1010 carrier cm−2). This outstanding TE performance originates from the TE coefficient advantages of each layer; high electrical conductivity from graphene and high Seebeck coefficient from ZnO incorporate with reduced thermal conductivity in the heterostructure. The findings will stimulate further studies to confirm the results as well as the development of flexible TE generators based on graphene for Internet of things thermoelectric applications.
An Eutectic Gel Based on Polymerizable Deep Eutectic Solvent with Self‐Adhesive, Self‐adaptive Cold and High Temperature Environments
Authors: Wang Rixuan , Chen Picheng , Zhou Xinjie , Sun Luyang , Wang Guoqing , Liu Yuetao , Gao Chuanhui 
Published: January 2023

AbstractIonic conductors have a wide range of development prospects in the field of flexible wearable electronics. The polymerizable deep eutectic solvent is more economical, resistant to extreme temperature, and less toxic than the traditional hydrogels and ionic liquids. In this paper, the supramolecular eutectic gel is prepared by introducing glycol/choline chloride deep eutectic solvent into acrylamide/choline chloride deep eutectic solvent as “hydrogen bond cross‐linking density regulator”. Deep eutectic solvents give eutectic gels the ability to resist the low (‐25 °C) and high (60 °C) temperatures. By introducing 2‐acrylamido‐2‐methyl‐1‐propanesulfonic acid into the gel, the adhesion ability of gel on copper sheet can reach 90 kPa and shows good reusability. Due to the complex hydrogen bond interaction in the gel, it has good mechanical properties (strain up to 2300%, stress up to 0.21 MPa). In addition, the ionic conductivity of the gel can reach 0.22 ms cm−1 due to the presence of choline chloride. In addition, since the polymerization is triggered quickly under UV light, this allowed us to print gels of any shape on any surface. Such deep eutectic gels with self‐adhesion, intrinsic conductivity, excellent mechanical properties and extreme temperature resistance may have a wide range of applications in the field of motion sensors.
Injectable Polysaccharide Hydrogels as Localized Nitric Oxide Delivery Formulations
Authors: Feura Evan S. , Maloney Sara E. , Conlon Ivie L. , Broberg Christopher A. , Yang Feichen , Schoenfisch Mark H. 
Published: January 2023

AbstractA series of injectable polysaccharide hydrogels are prepared with oxidized dextran and diethylenetriamine‐modified carboxymethylcellulose (CMC) or hyaluronic acid (HA). Rheological evaluation reveals that CMC‐based hydrogels achieve storage moduli >1 kPa when prepared from 5 wt% solutions, while storage moduli >100 Pa are achievable from solutions with concentrations as low as 2 wt%. HA‐based hydrogels demonstrate smaller storage moduli but have swelling ratios more than four‐fold that of CMC systems at equal concentrations. The incorporation of N‐diazeniumdiolate nitric oxide (NO) donors into the hydrogels results in reduced hydrogel storage moduli as a function of NO donor concentration. The impact of the hydrogel architecture on NO‐release kinetics proves dependent on the identity of the NO donor. Hydrogel degradation over 14 d indicates that HA‐based hydrogels degrade more rapidly than CMC hydrogels and that the addition of NO to the hydrogels increases the rate at which they degrade. In vitro cytotoxicity of hydrogel extracts is minimal, with toxicity observed only at high NO‐donor concentrations for select cell lines. The diverse properties, versatility, and nontoxic characteristics of these injectable hydrogels should facilitate local delivery of nitric oxide for a range of biomedical applications.
“Z”‐Type Tilted Quasi‐One‐Dimensional Assembly of Actinide‐Embedded Coinage Metal Near‐Plane Superatoms and Their Optical Properties
Authors: Huang Wanrong , Yu Famin , Zhu Yu , Wang Rui , Li Jiarui , Zhang Sean Xiao‐An , Wang Zhigang 
Published: January 2023

AbstractIn this work, a novel discovery that the coinage‐metal near‐plane superatoms (CM‐NPSs) formed by embedding actinide elements into the coinage metal rings can realize the “Z”‐type tilted quasi‐one‐dimensional (1D) direct assembly is reported. This success can be attributed to the strong bonding between the overlapping parts of adjacent superatomic motifs. First‐principles calculations reveal that the motifs maintain their geometric and electronic structures robustly during the assembly process. With the accumulation of motifs, the intensity of the absorption peak increases continuously in the ultraviolet‐visible (UV‐Vis) absorption spectra range of 300–450 nm, resulting in the hyperchromic effect, which is closely related to the degree of the participation of Th atoms. Furthermore, the absorption spectra show a continuously tunable feature in the 450–900 nm range, as the interlayer stacking pattern leads to a pronounced redshift. More importantly, the valence 5f‐shells of Th atoms have an increased contribution to the final orbitals of electronic transition, which demonstrates the advantages of the active high angular momentum electrons of actinide elements in spectral properties. These findings provide a valuable reference for the direct artificial assembly of near‐plane superatoms and optical properties of superatomic assemblies embedded with rare elements.
Rapid and Energy‐Efficient Synthesis of Disordered Rocksalt Cathodes
Authors: Wu Vincent C. , Evans Hayden A. , Giovine Raynald , Preefer Molleigh B. , Ong Julia , Yoshida Eric , Cabelguen Pierre‐Etienne , Clément Raphaële J. 
Published: January 2023

AbstractLithium‐rich transition metal oxides with a cation‐disordered rocksalt structure (disordered rocksalt oxides or DRX) are promising candidates for sustainable, next‐generation Li‐ion cathodes due to their high energy densities and compositional flexibility, enabling Co‐ and Ni‐free battery chemistries. However, current methods to synthesize DRX compounds require either high temperature (≈1000 °C) sintering for several hours, or high energy ball milling for several days in an inert atmosphere. Both methods are time‐ and energy‐intensive, limiting the scale up of DRX production. The present study reports the rapid synthesis of various DRX compositions in ambient air via a microwave‐assisted solid‐state technique resulting in reaction times as short as 5 min, which are more than two orders of magnitude faster than current synthesis methods. The DRX compounds synthesized via microwave are phase‐pure and have a similar short‐ and long‐range structure as compared to DRX materials synthesized via a standard solid‐state route, resulting in nearly identical electrochemical performance. In some cases, microwave heating allows for better particle size and morphology control. Overall, the rapid and energy‐efficient microwave technique provides a more sustainable route to produce DRX materials, further incentivizes the development of next‐generation DRX cathodes, and is key to accelerating their optimization via high‐throughput studies.
Supramolecular Polyphenol‐DNA Microparticles for In Vivo Adjuvant and Antigen Co‐Delivery and Immune Stimulation
Authors: Qu Yijiao , De Rose Robert , Kim Chan‐Jin , Zhou Jiajing , Lin Zhixing , Ju Yi , Bhangu Sukhvir Kaur , Cortez‐Jugo Christina , Cavalieri Francesca , Caruso Frank 
Published: January 2023

AbstractDNA‐based materials have attracted interest due to the tunable structure and encoded biological functionality of nucleic acids. A simple and general approach to synthesize DNA‐based materials with fine control over morphology and bioactivity is important to expand their applications. Here, we report the synthesis of DNA‐based particles via the supramolecular assembly of tannic acid (TA) and DNA. Uniform particles with different morphologies are obtained using a variety of DNA building blocks. The particles enable the co‐delivery of cytosine‐guanine adjuvant sequences and the antigen ovalbumin in model cells. Intramuscular injection of the particles in mice induces antigen‐specific antibody production and T cell responses with no apparent toxicity. Protein expression in cells is shown using capsules assembled from TA and plasmid DNA. This work highlights the potential of TA as a universal material for directing the supramolecular assembly of DNA into gene and vaccine delivery platforms.
A Two‐Dimensional Porphyrin Coordination Supramolecular Network Cathode for High‐Performance Aqueous Dual‐Ion Battery
Authors: Tan Yuanming , Chen Zhao , Tao Zengren , Wang Anding , Lai Shimei , Yang Yangyi 
Published: January 2023

AbstractIodine has great potential in the energy storage, but high solubility of I3− has seriously delayed its promotion. Benefited from abundant active sites and the open channel, two‐dimensional coordination supramolecular networks (2D CSNs) is considered to be a candidate for the energy storage. Herein, a 2D porphyrin‐CSN cathode named Zn‐TCPP for aqueous iodine dual‐ion battery (DIB) shows an excellent specific capacity of 278 mAh g−1, and a high energy density of 340 Wh kg−1 at 5 A g−1, as well as a durable cycle performance of 5000 cycles and a high Coulombic efficiency of 98 %. Molecular orbital theory, UV/VIS, Raman spectroscopy and density functional theory (DFT) calculations reveal charge‐transfer interaction between the donor of porphyrin nitrogen and the acceptor of I3−, and computational fluid dynamics (CFD) simulations demonstrate the contribution of 2D layered network structure of Zn‐TCPP to the penetration of I3−.
Sterically Hindered and Deconjugative α‐Regioselective Asymmetric Mannich Reaction of Meinwald Rearrangement‐Intermediate
Authors: Xu Jinxiu , Song Yanji , Yang Jia , Yang Bingqian , Su Zhishan , Lin Lili , Feng Xiaoming 
Published: January 2023

AbstractCompared to γ‐addition, the α‐addition of α‐branched β,γ‐unsaturated aldehydes faces larger steric hindrance and disrupts the π–π conjugation, which might be why very few examples are reported. In this article, a highly diastereo‐ and enantioselective α‐regioselective Mannich reaction of isatin‐derived ketimines with α‐, β‐ or γ‐branched β,γ‐unsaturated aldehydes, generated in situ from Meinwald rearrangement of vinyl epoxides, is realized by using chiralN,N′‐dioxide/ScIIIcatalysts. A series of chiral α‐quaternary allyl aldehydes and homoallylic alcohols with vicinal multisubstituted stereocenters are constructed in excellent yields, good d.r. and excellenteevalues. Experimental studies and DFT (density functional theory) calculations reveal that the large steric hindrance of the ligand and the Boc (tButyloxy carbonyl) protecting group of imines are critical factors for the α‐regioselectivity.
Influencing Factors on Li‐ion Conductivity and Interfacial Stability of Solid Polymer Electrolytes, Exampled by Polycarbonates, Polyoxalates and Polymalonates
Authors: Xie Xiaoxin , Wang Zhaoxu , He Shuang , Chen Kejun , Huang Qiu , Zhang Peng , Hao Shu‐Meng , Wang Jiantao , Zhou Weidong 
Published: January 2023

AbstractThe application of solid polymer electrolytes (SPEs) in all‐solid‐state(ASS) batteries is hindered by lower Li+‐conductivity and narrower electrochemical window. Here, three families of ester‐based F‐modified SPEs of poly‐carbonate (PCE), poly‐oxalate (POE) and poly‐malonate (PME) were investigated. The Li+‐conductivity of these SPEs prepared from pentanediol are all higher than the counterparts made of butanediol, owing to the enhanced asymmetry and flexibility. Because of stronger chelating coordination with Li+, the Li+‐conductivity of PME and POE is around 10 and 5 times of PCE. The trifluoroacetyl‐units are observed more effective than −O−CH2−CF2−CF2−CH2−O− during the in situ passivation of Li‐metal. Using trifluoroacetyl terminated POE and PCE as SPE, the interfaces with Li‐metal and high‐voltage‐cathode are stabilized simultaneously, endowing stable cycling of ASS Li/LiNi0.6Co0.2Mn0.2O2(NCM622) cells. Owing to an enol isomerization of malonate, the cycling stability of Li/PME/NCM622 is deteriorated, which is recovered with the introduce of dimethyl‐group in malonate and the suppression of enol isomerization. The coordinating capability with Li+, molecular asymmetry and existing modes of elemental F, are all critical for the molecular design of SPEs.
Electrothermal Water‐Gas Shift Reaction at Room Temperature with a Silicomolybdate‐Based Palladium Single‐Atom Catalyst
Authors: Chang Jinquan , Hülsey Max J. , Wang Sikai , Li Maoshuai , Ma Xinbin , Yan Ning 
Published: January 2023

AbstractThe water‐gas shift (WGS) reaction is often conducted at elevated temperature and requires energy‐intensive separation of hydrogen (H2) from methane (CH4), carbon dioxide (CO2), and residual carbon monoxide (CO). Designing processes to decouple CO oxidation and H2 production provides an alternative strategy to obtain high‐purity H2 streams. We report an electrothermal WGS process combining thermal oxidation of CO on a silicomolybdic acid (SMA)‐supported Pd single‐atom catalyst (Pd1/CsSMA) and electrocatalytic H2 evolution. The two half‐reactions are coupled through phosphomolybdic acid (PMA) as a redox mediator at a moderate anodic potential of 0.6 V (versus Ag/AgCl). Under optimized conditions, our catalyst exhibited a TOF of 1.2 s−1 with turnover numbers above 40 000 mol
molPd−1 achieving stable H2 production with a purity consistently exceeding 99.99 %.
A facile strategy to construct multifunctional microencapsulated urea ammonium polyphosphate for epoxy resins towards satisfied fire safety, thermal stability and compatibility
Authors: Yi Liang , Long Miaotian , Yan Long , Tang Xinyu , Liao Jiahao 
Published: January 2023

AbstractEnhancing the fire safety of epoxy resin (EP) concomitant with less mechanical performance degradation is still a challenge for traditional flame retardants. Hence, polypyrrole (PPy) was used as a film material to fabricate microencapsulated urea ammonium polyphosphate (UAPP) for simultaneously improving the fire safety, thermal stability and compatibility of epoxy composites. The obtained polypyrrole‐coated urea ammonium polyphosphate (PPy‐UAPP) at a load of 10 wt% endows the EP with a UL94 V‐0 rating and a limiting oxygen index (LOI) value of 32.3%, while 10 wt% ammonium polyphosphate (APP) only endows EP with a LOI of 28.5%. Furthermore, the peak heat release rate (PHRR) and peak smoke production rate (PSPR) of EP containing 10 wt% PPy‐UAPP are decreased by 12.3% and 21.4% compared to EP containing 10 wt% APP. The decreased fire hazard of EP/PPy‐UAPP is attributed to the reduction of hazardous gases including CO2 and CO and the generation of more incombustible gases including H2O and NH3 to reduce the combustion intensity. Meanwhile, the good compatibility between EP matrix and PPy‐UAPP endows the resulting EP composites with a superior balance between fire safety and mechanical properties.
The catalytic degradation of dyes using polyethersulfone/poly(vinylidene fluoride)/copper oxide composite nanofibers
Authors: Mapazi Odwa , Matabola Phillemon , Mokhena Teboho , van der Walt Hendriëtte 
Published: January 2023

AbstractThis work reports on the synthesis of copper oxide (CuO) nanoparticles and its incorporation into the polyethersulfone/poly(vinylidene fluoride) (PES/PVDF) nanofibers for both antibacterial and dyes degradation purposes. Transmission electron microscopy (TEM), X‐ray diffraction (XRD), ultraviolet (UV) and scanning electron microscope (SEM) characterized the materials' morphology and structure. Most notably, the CuO NPs exhibited low to mild toxicity toward different types of cells. The synthesis of CuO NPs and their subsequent incorporation into the PES/PVDF nanofibers was also successful, as illustrated by TEM, XRD and SEM characterizations. Moreover, the degradation and antibacterial studies were done using the methyl orange/coomassie blue dyes and E. coli bacterial strain, respectively. With respect to antibacterial properties, the CuO nanoparticles performed better as compared to the PES/PVDF/CuO composites. Furthermore, the bare nanoparticles emerged as excellent catalysts in comparison to the decorated nanofibers.