bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spatially Confined “Edge‐to‐Edge” Strategy for Achieving Compact Na+/K+ Storage: Constructing Hetero‐Ni/Ni3S2 in Densified Carbons
Authors: Sun Zining , Liang Huanyu , Wang Huanlei , Shi Jing , Huang Minghua , Chen Jingwei , Liu Shuai , Tian Weiqian , Cao Haijie , Li Zhi 
Published: May 2022

AbstractTransition metal sulfides (TMS) are considered as promising anodes for sodium/potassium ion batteries (SIBs/PIBs), and compositing TMS with conductive nanocarbons is an effective mitigation for improving rate performance and cycling stability. However, such a coupling strategy often decreases the tap density and therefore the volumetric energy of electrode. To achieve fast electron/ion transport and high volumetric capacity simultaneously, herein, a compact nanostructure with hetero Ni‐Ni3S2 nanoparticles embedded in a densified S‐doped carbon matrix (Ni‐Ni3S2@SC) is constructed via a spatially confined “edge‐to‐edge” strategy. Experimental and theoretical results confirm that the carbon matrix and metallic Ni nanoparticles provide fast electron transport pathways at two scales, while the abundant heterojunctions with strong electric fields promote the ion migration and Na/K adsorption. As an anode in SIBs/PIBs, the Ni‐Ni3S2@SC exhibits superior rate capability (289/197 mA h g−1 at 2 A g−1), stable cycling performance (88.1/86.2% capacity retention after 100 cycles), and exceptional volumetric capacity (1048/850 mAh cm−3 at 0.05 A g−1). The impressive energy‐power characteristics for Ni‐Ni3S2@SC anode are further confirmed in full cell batteries and hybrid capacitors. The reported spatially confined “edge‐to‐edge” strategy might be adapted to the construction of various binary and/or ternary metal sulfide dense electrodes for advanced energy storage devices.
High Air Stability and Excellent Li Metal Compatibility of Argyrodite‐Based Electrolyte Enabling Superior All‐Solid‐State Li Metal Batteries
Authors: Liu Hong , Zhu Qisi , Wang Chao , Wang Guoxu , Liang Yuhao , Li Dabing , Gao Lei , Fan Li‐Zhen 
Published: May 2022

AbstractSulfide solid electrolytes (SSEs) for all‐solid‐state Li metal batteries (ASSLMBs) are attracting increasing attention due to their ultrahigh ionic conductivity and good machinability. However, current SSEs generally suffer from inferior Li metal compatibility and poor air‐stability, which severely impede their practical applications for ASSLMBs. Herein, novel argyrodite‐based SSEs of Li6+2xP1−xBixS5−1.5xO1.5xCl are synthesized via the Bi, O co‐doping the Li6PS5Cl for the first time. By adjusting the concentrations of dopant, the optimized Li6.04P0.98Bi0.02S4.97O0.03Cl presents an ultrahigh ionic conductivity (3.4 × 10−3 S cm−1). Moreover, such electrolyte displays splendid structural stability after exposure to humid air and chlorobenzene, demonstrating admirable air‐stability and solvent‐stability. The mechanism of the enhanced air‐stability of oxide‐doped SSEs is profoundly understood by conducting first‐principles density functional theory calculations. In addition, the Li6.04P0.98Bi0.02S4.97O0.03Cl electrolyte triggers the generation of LiBi alloy at the anode interface, which plays a crucial role in reducing Li+ diffusion energy barriers and improving interfacial compatibility, leading to an ultrahigh critical current density of 1.1 mA cm−2 and splendid cyclic stability in Li symmetric cell. As a result, ASSLMBs equipped with either pristine or air‐exposed Li6.04P0.98Bi0.02S4.97O0.03Cl can deliver satisfying discharge specific capacity at room temperature.
Flexible Normally Transparent Smart Window Modulating Near‐Infrared Penetration under Ambient Conditions
Authors: Liu Yang , Zhu Wenbing , Sang Jingxin , Zhang Xing , Lee Dong Wook , Seo Dae‐Shik 
Published: May 2022

AbstractSmart windows that both reversibly occlude visible light and modulate the penetration of near‐infrared (NIR) light save a great deal of energy. Here, a simple, super‐fast, electrically switchable smart window that initially reflects NIR light and then scatters it in response to thermal stimuli is designed and fabricated. Transparent polymer‐stabilized cholesteric liquid crystals (PSCLCs) are prepared by photo‐polymerizing RM 257 monomers in which the planar CLCs fully reflected NIR light (1050–1550 nm). Next, an ultra‐thin, thermotropic, W0.003V0.997O2‐doped polyvinylpyrrolidone hybrid thin layer that modulates NIR light penetration over a very broad temperature range is overlaid on the PSCLCs, and the final WVO‐PSCLCs smart window features four NIR modulation modes. Specifically, when a model wood house with three 1.5‐ × 2‐cm WVO‐PSCLCs smart windows is thermally irradiated by a 250‐W infrared light for 10 min, the internal temperature is 4.8 °C less than that of a house lacking smart windows. Flexible smart windows fabricated from polyethylene terephthalate (PET) could be bent through a radius of 15 mm without any noticeable damage, and are very resistant to external vertical pressure. The flexible WVO‐PSCLCs smart windows are versatile, and afford outstanding transparency management and modulation of NIR light penetration.
Inhibiting the IRE1α Axis of the Unfolded Protein Response Enhances the Antitumor Effect of AZD1775 in TP53 Mutant Ovarian Cancer
Authors: Xiao Rourou , You Lixin , Zhang Li , Guo Xichen , Guo Ensong , Zhao Faming , Yang Bin , Li Xi , Fu Yu , Lu Funian , Wang Zizhuo , Liu Chen , Peng Wenju , Li Wenting , Yang Xiaohang , Dou Yingyu , Liu Jingbo , Wang Wei , Qin Tianyu , Cui Yaoyuan , Zhang Xiaoxiao , Li Fuxia , Jin Yang , Zeng Qingping , Wang Beibei , Mills Gordon B. , Chen Gang , Sheng Xia , Sun Chaoyang 
Published: May 2022

AbstractTargeting the G2/M checkpoint mediator WEE1 has been explored as a novel treatment strategy in ovarian cancer, but mechanisms underlying its efficacy and resistance remains to be understood. Here, it is demonstrated that the WEE1 inhibitor AZD1775 induces endoplasmic reticulum stress and activates the protein kinase RNA‐like ER kinase (PERK) and inositol‐required enzyme 1α (IRE1α) branches of the unfolded protein response (UPR) in TP53 mutant (mtTP53) ovarian cancer models. This is facilitated through NF‐κB mediated senescence‐associated secretory phenotype. Upon AZD1775 treatment, activated PERK promotes apoptotic signaling via C/EBP‐homologous protein (CHOP), while IRE1α‐induced splicing of XBP1 (XBP1s) maintains cell survival by repressing apoptosis. This leads to an encouraging synergistic antitumor effect of combining AZD1775 and an IRE1α inhibitor MKC8866 in multiple cell lines and preclinical models of ovarian cancers. Taken together, the data reveal an important dual role of the UPR signaling network in mtTP53 ovarian cancer models in response to AZD1775 and suggest that inhibition of the IRE1α‐XBP1s pathway may enhance the efficacy of AZD1775 in the clinics.
Cationic Covalent Organic Framework with Ultralow HOMO Energy Used as Scaffolds for 5.2 V Solid Polycarbonate Electrolytes
Authors: Liu Jie , Zhang Yuhao , Ji Haoqing , Zhang Jing , Zhou Pinxin , Cao Yufeng , Zhou Jinqiu , Yan Chenglin , Qian Tao 
Published: May 2022

AbstractSolid polymer electrolytes (SPEs) have become promising candidate to replace common liquid electrolyte due to highly improved security. However, the practical use of SPEs is still restricted by their decomposition and breakage at the electrode interfacial layer especially at high voltage. Herein, a new cationic covalent organic framework (COF) is designed and synthesized as a reinforced skeleton to resist the constant oxidative decomposition of solid polycarbonate electrolyte, which can stabilize cathode electrolyte interphase layer to develop long‐term cycle solid lithium metal battery. The ultralow HOMO energy (−12.55 eV according to density functional theory (DFT) calculations), reflecting its oxidation resistance at positive potential, would be responsible for the high decomposition voltage of 5.2 V versus Li+/Li of solid polycarbonate electrolyte. Furthermore, the smooth surface of interfacial layer and inhibited decomposition reaction at cathode side is confirmed in solid LiCoO2 cell, which realizes high initial capacity up to 160.3 mAh g−1 at 0.1 C and greatly improved stability in 4.5 V class solid polymer lithium metal battery with high capacity retention over 200 cycles. This new type of high‐voltage resistant solid polymer electrolyte promotes the realization of high‐voltage cathode materials and higher energy density lithium metal battery.
Quasi‐Shell‐Growth Strategy Achieves Stable and Efficient Green InP Quantum Dot Light‐Emitting Diodes
Authors: Wu Qianqian , Cao Fan , Wang Sheng , Wang Yimin , Sun Zhongjiang , Feng Jingwen , Liu Yang , Wang Lin , Cao Qiang , Li Yunguo , Wei Bin , Wong Wai‐Yeung , Yang Xuyong 
Published: May 2022

AbstractIndium phosphide (InP) based quantum dots (QDs) have been known as an ideal alternative to heavy metals including QDs light emitters, such as cadmium selenium (CdSe) QDs, and show great promise in the next‐generation solid‐state lighting and displays. However, the electroluminescence performance of green InP QDs is still inferior to their red counterparts, due to the higher density of surface defects and the wider particle size distribution. Here, a quasi‐shell‐growth strategy for the growth of highly luminescent green InP/ZnSe/ZnS QDs is reported, in which the zinc and selenium monomers are added at the initial nucleation of InP stage to adsorb on the surface of InP cores that create a quasi‐ZnSe shell rather than a bulk ZnSe shell. The quasi‐ZnSe shell reduces the surface defects of InP core by passivating In‐terminated vacancies, and suppresses the Ostwald ripening of InP core at high temperatures, leading to a photoluminescence quantum yield of 91% with a narrow emission linewidth of 36 nm for the synthesized InP/ZnSe/ZnS QDs. Consequently, the light‐emitting diodes based on the green QDs realize a maximum luminance of 15606 cd m−2, a peak external quantum efficiency of 10.6%, and a long half lifetime of > 5000 h.
Plasticized PVC‐Gel Single Layer‐Based Stretchable Triboelectric Nanogenerator for Harvesting Mechanical Energy and Tactile Sensing
Authors: Park Hyosik , Oh Seung‐Ju , Kim Daeyeong , Kim Mingyu , Lee Cheoljae , Joo Hyeonseo , Woo Insun , Bae Jin Woo , Lee Ju‐Hyuck 
Published: May 2022

AbstractTriboelectric nanogenerators have garnered significant attention as alternative power sources for wearable electronics owing to their simple structure, easy fabrication, low cost, and superior power output. In this study, a transparent, stretchable, and attachable triboelectric nanogenerator (TENG) is built with an advanced power output using plasticized polyvinyl chloride (PVC)‐gel. The PVC‐gel exhibit very high negative triboelectric properties and electrically insulating PVC became an electrically active material. It is found that a single layer of PVC‐gel can act as a dielectric and as a conducting layer. The PVC‐gel based single layer of triboelectric nanogenerator (S‐TENG) creates output signals of 24.7 V and 0.83 µA, i.e., a 20‐fold enhancement in the output power compared to pristine PVC‐based TENGs. In addition, the S‐TENG can stably generate output voltage and current under stretching condition (80%). The S‐TENG can be implemented as a tactile sensor that can sense position and pressure without combining multiple elements or electrode grid patterns. This study provides new applications of power sources and tactile sensors in wearable electronics.
Charge–Discharge Mechanism of High‐Entropy Co‐Free Spinel Oxide Toward Li+ Storage Examined Using Operando Quick‐Scanning X‐Ray Absorption Spectroscopy
Authors: Luo Xu‐Feng , Patra Jagabandhu , Chuang Wei‐Tsung , Nguyen Thi Xuyen , Ting Jyh‐Ming , Li Ju , Pao Chih‐Wen , Chang Jeng‐Kuei 
Published: May 2022

AbstractTransition metal high‐entropy oxides (HEOs) are an attractive class of anode materials for high‐performance lithium‐ion batteries (LIBs). However, owing to the multiple electroactive centers of HEOs, the Li+ storage mechanism is complex and debated in the literature. In this work, operando quick‐scanning X‐ray absorption spectroscopy (XAS) is used to study the lithiation/delithiation mechanism of the Cobalt‐free spinel (CrMnFeNiCu)3O4 HEO. A monochromator oscillation frequency of 2 Hz is used and 240 spectra are integrated to achieve a 2 min time resolution. High‐photon‐flux synchrotron radiation is employed to increase the XAS sensitivity. The results indicate that the Cu2+ and Ni2+ cations are reduced to their metallic states during lithiation but their oxidation reactions are less favorable compared to the other elements upon delithiation. The Mn2+/3+ and Fe2+/3+ cations undergo two‐step conversion reactions to form metallic phases, with MnO and FeO as the intermediate species, respectively. During delithiation, the oxidation of Mn occurs prior to that of Fe. The Cr3+ cations are reduced to CrO and then Cr0 during lithiation. A relatively large overpotential is required to activate the Cr reoxidation reaction. The Cr3+ cations are found after delithiation. These results can guide the material design of HEOs for improving LIB performance.
Equalizing Excitation‐Inhibition via the Ambipolar Photoresponse of Al2O3/graphene Hybrid Neuromorphic Devices
Authors: Jiang Zhiguo , Wen Weikun , Zhong Zhijian , Xia Liping , Gao Fangliang , Zhang Yong , Wu Jiang , Khisro Said Nasir , Zha Aiyun , Zha Qingbin , Chen Xinman 
Published: May 2022

AbstractIntrigued by the artificial intelligence and brain‐like neural networks, the photoelectronic neuromorphic devices that can simulate synaptic functions have been attracting wide attention. However, equalizing excitation‐inhibition has been seldom artificially realized despite its fundamental feature in a biological system. In this work, an artificial synapse is proposed based on a sandwiched Ag/Al2O3/graphene/ITO photodetector. The device exhibits a special ambipolar photoresponse at the millivoltage as a result of the interfacial trapping effects. Under the coupled light and electrical stimulus, the synaptic excitatory, inhibitory signals and their recovery are emulated on a single device via the positive and negative photoresponse, respectively. Further, the biologically dynamic balance of excitation and inhibition is reproduced on a simple analogous system integrating multiple photoelectronic synaptic cells. These remarkable results provide a potential foundation for building hardware units with neuromorphic architecture to mimic the complex human brain functionalities.
RETRACTED: Application of blockchain technology based on big data analysis in sustainable agriculture
Authors: Li Hongping , Luo Jun , Zhou Guangzhu 
Published: May 2022

AbstractTo improve the effect of sustainable agricultural development, this paper reports on sustainable agricultural development with the support of big data technology, combines the Internet of Things technology to apply blockchain in sustainable agricultural development, and analyzes the economic effect model. Moreover, this paper proves that the introduction of third‐party logistics in the vendor‐managed inventory strategy can effectively reduce the total cost of the supply chain. Through model analysis and model transformation, the inventory transportation integration optimization problem model is decomposed into two sub‐models: the transportation scheduling model and the replenishment delivery model. In addition, this paper designs a new solution algorithm based on the genetic algorithm and builds an intelligent blockchain model. The experimental research shows that the blockchain technology based on big data analysis proposed in this paper has certain effects.
Ultrafast Triplet–Singlet Exciton Interconversion in Narrowband Blue Organoboron Emitters Doped with Heavy Chalcogens
Authors: Park In Seob , Min Hyukgi , Yasuda Takuma 
Published: May 2022

AbstractNarrowband emissive organoboron emitters featuring the multi‐resonance (MR) effect have now become a critical material component for constructing high‐performance organic light‐emitting diodes (OLEDs) with pure emission colors. These MR organoboron emitters are capable of exhibiting high‐efficiency narrowband thermally activated delayed fluorescence (TADF) by allowing triplet‐to‐singlet reverse intersystem crossing (RISC). However, RISC involving spin‐flip exciton upconversion is generally the rate‐limiting step in the overall TADF; hence, a deeper understanding and precise control of the RISC dynamics are ongoing crucial challenges. Here, we introduce the first MR organoboron emitter (CzBSe) doped with a selenium atom, demonstrating a record‐high RISC rate exceeding 108 s−1, which is even higher than its fluorescence radiation rate. Furthermore, the spin‐flip upconversion process inCzBSecan be accelerated by factors of ≈20000 and ≈800, compared to those of its oxygen‐ and sulfur‐doped homologs (CzBOandCzBS), respectively. UnlikeCzBOandCzBS, the photophysical rate‐limiting step inCzBSeis no longer RISC, but the fluorescence radiation process; this behavior is completely different from the conventional time‐delaying TADF limited by the slow RISC. Benefitting from its ultrafast exciton spin conversion ability, OLEDs incorporatingCzBSeachieved a maximum external electroluminescence quantum efficiency as high as 23.9 %, accompanied by MR‐induced blue narrowband emission and significantly alleviated efficiency roll‐off features.
Synthesis of an N‐Heterocylic Boryl‐Stabilized Disilyne and Its Application to the Activation of Dihydrogen and C−H Bonds
Authors: Ding Yazhou , Li Yang , Zhang Jianying , Cui Chunming 
Published: May 2022

AbstractThe synthesis of low‐valent silicon compounds that enable the activation of small molecules has been of great current interest. Reduction of N‐heterocyclic boryltribromosilane (NHB)SiBr3 (2, NHB=[ArN(CMe)2NAr]B, Ar=2,6‐iPr2C6H3) with three equiv. of lithium in diethyl ether yielded the NHB‐stabilized disilyne (NHB)Si≡Si(NHB) (3). Disilyne 3 slowly reacted with toluene, leading to the activation of one benzylic C−H bond and one C=C double bond with the formation of 4. Treatment of 3 with dihydrogen under 1 atm at room temperature resulted in the exclusive formation of the first boryl‐stabilized 1,2‐dihydrodisilene. Compounds 3–5 have been characterized by single‐crystal X‐ray diffraction studies, which indicated the co‐planarity of the B−Si−Si−B plane with the NHB rings in compounds 3 and 5. DFT calculations indicated the significant π electron delocalization of the Si−Si multiple bonds to the B−N bonds in NHB rings.
Merging the Non‐Natural Catalytic Activity of Lipase and Electrosynthesis: Asymmetric Oxidative Cross‐Coupling of Secondary Amines with Ketones
Authors: Long Chao‐Jiu , Cao Huan , Zhao Ben‐Kun , Tan Yu‐Fang , He Yan‐Hong , Huang Chu‐Sheng , Guan Zhi 
Published: May 2022

AbstractWe describe the enantioselective oxidative cross‐coupling of secondary amines with ketones by combining the non‐natural catalytic activity of lipase with electrosynthesis. Various 2,2‐disubstituted 3‐carbonyl indoles with a stereogenic quaternary carbon center were synthesized from 2‐substituted indoles in yields up to 78 % with good enantio‐ and diastereoselectivities (up to 96 : 4 e.r. and >20 : 1 d.r.). This unprecedented protocol demonstrated that hydrolase catalysis is compatible with electrosynthesis, and the reaction can be carried out in organic solvents with a broad substrate scope and good stereoselectivity. This work provides insights into enzymatic electrosynthesis.
Poly(3‐hexylthiophene) stabilized ultrafine nickel oxide nanoparticles as superior electrocatalyst for oxygen evolution reaction: Catalyst design through synergistic combination of π‐conjugated polymers and metal‐based nanoparticles
Authors: Iftikhar Sunniya , Aslam Saba , Duran Hatice , Çitoğlu Senem , Kirchhoff Katrin , Lieberwirth Ingo , Sohail Manzar , Yameen Basit 
Published: May 2022

AbstractWe report the synthesis and electrocatalytic activity of poly(3‐hexylthiophene) stabilized nickel oxide nanoparticles (P3HT@NiO NPs). Employing semiconducting P3HT as a stabilizing agent produced well dispersed P3HT@NiO NPs with uniform size distribution (2.5 ± 1.2 nm). For comparison, NiO NPs stabilized with the small molecule 3‐hexylthiophene (3HT@NiO NPs) were also synthesized and characterized as reference material. The physiochemical properties of the developed hybrid P3HT@NiO were fully characterized using UV/Vis absorption spectroscopy, fluorescence spectroscopy, high resolution transmission electron microscopy (HRTEM) and X‐ray photoelectron spectroscopy (XPS). The electrocatalytic activities of the developed semiconducting polymer‐stabilized NPs were evaluated for the oxygen evolution reaction (OER) of water splitting. Our work reveals the electronic communication between P3HT and NiO NPs and demonstrates that P3HT@NiO NPs exhibit superior catalytic activity with an overpotential of 310 mV when compared to the reference 3HT@NiO NPs which exhibited an overpotential 560 mV. These results suggest that the heteroatom‐containing π‐conjugated semiconducting polymers can be employed as electrocatalytic performance enhancing and stabilizing ligands for the synthesis of ultrafine metal‐based NPs as efficient electrocatalytic platforms.
Cooperative Supramolecular Polymerization Guided by Dispersive Interactions
Authors: Kotha Srinu , Sahu Rahul , Srideep Dasari , Yamijala Sharma S. R. K. C. , Kumar Reddy Sandeep , Venkata Rao Kotagiri 
Published: May 2022

AbstractCooperative supramolecular polymerization is important for the synthesis of functional supramolecular homo and block‐copolymers of π‐systems. Current strategies indicate the need of strong hydrogen bonding (H‐bonding) and/or dipolar interactions in the π‐systems to achieve cooperativity. In sharp contrast, here we report the cooperative supramolecular polymerization in alkyl chain substituted perylene diimides (alkyl PDIs) driven by dispersive interactions with molecular level understanding. Moreover, alkyl PDIs follow cooperative mechanism with cooperativity similar to the strong H‐bonded π‐systems (σ∼10−5) despite the lack of strong H‐bonding and dipolar interactions. Computer simulations show that this surprising phenomenon in alkyl PDIs is driven by the efficient dispersive interactions among the alkyl chains and π‐cores due to their zigzag arrangement in the supramolecular polymer. Importantly, alkyl PDIs display cooperative supramolecular polymerization in both polar and non‐polar solvents which is difficult for H‐bonded/dipolar π‐systems thus highlighting the advantages of dispersive interactions.