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Chemistry, Inorganic & Nuclear
Jun Yang et al.
Summary: In this study, a novel approach of in situ chemical anchoring of nickel cobalt selenide (Ni3Se4/CoSe2) on two-dimensional black phosphorene (BP) was proposed. The resulting BP@Ni3Se4/CoSe2 heterostructure effectively buffers volume expansion and facilitates electron/ion transfer, leading to superior sodium storage performance in half cells.
INORGANIC CHEMISTRY FRONTIERS
(2023)
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Panrun Shao et al.
Summary: In this study, the porous and electronic interconnected structure of TCNQ was designed using electronic modulation and structure engineering. The TCNQ was loaded onto reduced graphene oxide (rGO) to enhance conductivity and connected conductive networks. The TCNQ-rGO exhibited superior performance for NH4+ batteries with improved reversible capacity and stable cycle life. The loading ratio of TCNQ and rGO was found to impact the cycling performance. The study also discussed the ammonium storage mechanism and demonstrated the potential of TCNQ-rGO as an electrode material through energy level calculations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Review
Biochemistry & Molecular Biology
Jiaxun Sun et al.
Summary: Lithium-ion batteries (LIBs) have become the preferred choice for portable electronic devices and transportation equipment due to their advantageous characteristics. However, their performance is severely affected by excessively low temperatures. The electrode material is identified as a crucial factor, and thus, there is a need to develop or modify materials to enhance low-temperature LIB performance. Carbon-based anodes have been explored as a potential candidate, but their complex structure poses challenges. In this study, the low-temperature performance of LIBs was improved through electronic modulation and structural engineering of the carbon-based material.
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Chemistry, Physical
Yongsheng Shi et al.
Summary: The FeF3/Fe/GC nanocomposite, fabricated by low-temperature fluorination, exhibits high specific capacity and excellent cycle stability, thanks to the pseudocapacitive contribution and optimized structure of the nanocomposite.
Review
Chemistry, Multidisciplinary
Youchen Hao et al.
Summary: Sodium (Na) ion batteries (SIBs) show great potential for stationary energy storage applications. Current research is focused on finding suitable electroactive materials for SIBs, with phosphides being particularly appealing due to their high specific capacities and low working potentials. However, there are still challenges regarding their large volume variation and inferior interfacial stability, which affect capacity and cycling decay. This review provides an in-depth understanding of phosphides for Na storage, including their mechanism, capacity assessment, phase change, and reaction types. Effective strategies and designs for high-performance phosphides are discussed, along with the correlation between electrochemical behavior and chemical/structural characteristics. The knowledge gained from phosphide research can be shared and applied beyond phosphides.
ADVANCED FUNCTIONAL MATERIALS
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Yue Lian et al.
Summary: In this study, a composite material (ppy@TNO-x@NC) consisting of Ti2Nb10O29 with modified vacancy defects and an ultrathin polymer coating was developed for high-capacity and stable performance in lithium-ion batteries and hybrid capacitors.
CHEMICAL ENGINEERING JOURNAL
(2023)
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Fanjun Kong et al.
Summary: This study investigates the structural change of high-voltage spinel LiNi0.5Mn1.5O4 (LNMO) cathodes under a wide voltage range. It reveals a complex phase transformation process during deep discharge, resulting in structural distortion and capacity fading. These findings provide valuable insights into the performance degradation mechanism of spinel cathodes, contributing to the design of high-performance cathode materials for advanced lithium-ion batteries.
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Quan Wang et al.
Summary: In this study, an aqueous Zn-ion battery using BBPD as cathode material was developed, which maintains the integrity of the active materials during long term cycles and exhibits outstanding rate performance and power density due to the special charge carrier insertion mechanism and one-dimensional square ion tunnel structure.
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(2023)
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Wellars Utetiwabo et al.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
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Ruifeng Qian et al.
Summary: TiNb2O7 nanospheres with a unique hollow structure are synthesized using phenolic resin spheres as sacrificial templates and coated with polydopamine and N-doped carbon layer on secondary nanoparticles, which significantly improves their cycle performance and rate capability in lithium-ion batteries.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
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Tian Jiang et al.
Summary: This study reports on partially reduced TiNb24O62 (PR-TNO) that shows excellent electrochemical performance at low temperatures. PR-TNO has a crystal structure similar to that of partially reduced Ti2Nb10O29 and enables multielectron transfer and high efficiencies. The increased electronic conductivity and robust crystal structure of PR-TNO allow for fast electron and Li+ transport, small volume change, and notable capacitive behavior even in very low temperatures.
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Jijian Xu et al.
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Cong Liu et al.
Summary: Surface-modified and in-situ carbon-intercalated Nb2CT(x) MXene electrode for potassium ion batteries shows larger effective interlayer distance, higher specific surface area, and electrical conductivity, leading to significantly increased coulombic efficiency and specific capacity compared to unmodified Nb2CTx.
CHEMICAL ENGINEERING JOURNAL
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Le Yang et al.
Summary: In this study, an in-situ gas reduction strategy was used to introduce ordered defects into titanium niobium oxide, leading to a new superstructure with enhanced pseudocapacitive performance. The structural stability of the superstructure was confirmed under harsh electrochemical conditions. This work provides a direct observation of the ordered defective superstructure in transition metal oxides and reveals its functionality in electrochemistry.
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Chemistry, Physical
Shaohua Shi et al.
Summary: A novel gradient carbon coating strategy was proposed to synthesize N-doped carbon coated TNO microspheres, which showed improved ionic diffusivity, electronic conductivity, and cycling stability. This ingenious structural design may provide a new direction for the construction of high-quality electrodes in LIBs.
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Chemistry, Physical
Zihao Yang et al.
Summary: The Sb2Se3 nanorods supported by holey rGO composite membranes exhibit enhanced stability and electrochemical performance in potassium-ion batteries due to the Sb-O-C bonds. The prepared Sb2Se3@h-rGO electrodes show excellent cycling stability and high capacity in PIBs.
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Zan Huang et al.
Summary: A sulfur-doped graphene modified Li4Ti5O12@C nanocomposite (SG-T@C) was successfully fabricated via a sol-gel method assisted with solid-state route. The composite showed homogeneously dispersed Li4Ti5O12@C nanocrystals and the introduced sulfur-doped graphene acted as a conductive bridge, improving the electrical conductivity. The SG-T@C exhibited excellent high-rate performance and cycling stability, making it a promising electrode material for lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
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Hamed Aghamohammadi et al.
Summary: In this study, electrochemically exfoliated graphene nanosheets were used to enhance the electrochemical performance of titanium niobium oxide nanoparticles as anode for Li-ion batteries. The optimal graphene content was found to be 3 wt%, which greatly improved the distribution of the nanoparticles and capacity retention.
JOURNAL OF POWER SOURCES
(2022)
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Electrochemistry
Huaming Qian et al.
Summary: This review article provides a detailed overview of the recent progress in surface doping and bulk doping strategies for cathode materials in lithium-ion batteries. It discusses their effects on the structural stability, ion diffusion, and electrochemical properties of the materials. Furthermore, the article highlights the correlation between hybrid surface engineering strategies (doping and coating) and their impact on electrode performance, and identifies existing challenges and future prospects in this field.
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Dong Chen et al.
Summary: In this study, Cu3VS4 microspheres with enhanced conductivity were synthesized using a one-step hydrothermal method, leading to improved electrochemical kinetics and stress relief in sodium-ion batteries. The Cu3VS4 exhibited high capacity and stability after multiple cycles. The sodium storage mechanism and longevity of Cu3VS4 were confirmed through first-principles calculations. A full cell was assembled with a Na3V2(PO4)(2)O2F cathode, demonstrating impressive energy density and cycling stability.
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Jia Guo et al.
Summary: In this study, a novel C/N co-doped bilayer hollow structured MoSe2 nanosheets were fabricated using the innovative approach of interface and electronic structure dual-engineering. The resulting material showed excellent Na+ storage and charge transfer performance, providing a new direction for the development of efficient anode materials for SIBs.
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Jia-Lin Yang et al.
Summary: The research aims to convert spent anode graphite into cathode material for dual-ion batteries through a two-step treatment, achieving comparable performance to commercial graphite with high reversible capacity and improved cycling performance, demonstrating significant environmental and economic benefits.
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Electrochemistry
Guohao Yang et al.
Summary: This study systematically investigates the link between Li-rich channels and ionic conductivity in halide solid electrolytes, identifying potential solid electrolyte candidates with high Li-ion conductivity and stability through screening 180 different halides.
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Electrochemistry
Yue Wang et al.
Summary: A sulfidation strategy is used to obtain a new type of Ni-rich cathode (NCM88-S) with an ultrathin surface layer, which significantly reduces interfacial side reactions/resistance and improves interfacial stability. The resulting NCM88-S/Li6PS5Cl/Li4Ti5O12 all-solid-state lithium-ion battery shows superior performance.
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Electrochemistry
Simin Chai et al.
Summary: The development of low-cost and eco-friendly gel polymer electrolytes (GPEs) is crucial for safe and high-energy-density lithium-metal batteries. In this study, a biodegradable composite nanofiber membrane was synthesized and used as a skeleton for GPEs. The optimized GPEs showed excellent thermal stability, biodegradability, and liquid electrolyte absorbability, enabling stable operation in high voltage environments and high capacity retention.
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Electrochemistry
Yun Liu et al.
Summary: This study reveals that the adsorption behaviors of superoxide species can be effectively regulated via a core-induced interfacial charge interaction. Moderate adsorption strength can enable superior rate capability in a Li-O2 battery. Operando X-ray absorption near-edge structure and surface-enhanced Raman spectroscopy provide tools to monitor in situ the evolution of the superoxide intermediates and the electronic states of the catalyst's metal sites during the discharge and charge processes, and correlate these with the surface adsorption states. The concept of tuning adsorption behavior through interfacial charge engineering could open up new opportunities to further advance the development of the Li-O2 battery and beyond.
Article
Chemistry, Multidisciplinary
Wenxiu Hou et al.
Summary: This study investigates the application of Prussian blue analogues (PBAs) as electrode materials for aqueous ammonium ion batteries (AAIBs). A PANI/Na0.73Ni[Fe(CN)(6)](0.88) hybrid (PNFF) is synthesized using a covalent bond assisted engineering with in situ polyaniline (PANI) polymerization, combining the high conductivity of PANI and the stability of PBAs. It is found that the PANI content affects the electrochemical performance of PNFF, and an optimized PANI content results in enhanced reversible capacity and cycling stability. The ammonium storage mechanism of PNFF is investigated using in situ Raman and ex situ XPS/FTIR analysis, and a durable aqueous NH4+ full cell is assembled using a polyimide@MXene anode.
Review
Electrochemistry
Weixiao Wang et al.
Summary: This article systematically reviews recent progress in defect engineering for molybdenum-based electrode materials, including vacancy modulation, doping engineering, topochemical substitution, and amorphization. The essential optimization mechanisms of defect engineering in molybdenum-based electrode materials, as well as the existing challenges and future objectives for high-energy and high-power energy storage devices, are discussed.
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Electrochemistry
Zhifang Wang et al.
Summary: Solid polymer electrolytes show promise in solving safety issues in lithium ion batteries, but most materials are flammable. A thermal-responsive COF material with flame-retardant properties and high ionic conductivity was designed by incorporating polyethylene glycol and Li salt. This strategy opens new possibilities for stable COFs and flame-retardant materials in energy-related applications.
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Huanrui Zhang et al.
Summary: Lithium metal batteries are considered one of the most promising energy storage systems due to their high capacity and low potential. However, safety issues caused by lithium dendrite growth and pulverization have limited their practical application. To address this, researchers have developed an in situ polymer electrolyte with thermally induced interfacial ion-blocking ability, resulting in improved safety and cyclability of lithium metal batteries.
Review
Electrochemistry
Jie Wang et al.
Summary: Innovation and optimization are crucial for advancing beyond-lithium battery technologies, while electrospinning technology provides a versatile approach for producing nanofibers for battery applications. The focus is on how electrospinning can address key technical challenges facing beyond-lithium technologies.
ELECTROCHEMICAL ENERGY REVIEWS
(2022)
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Qiang Li et al.
Summary: Although some transition metal oxide-based electrodes exhibit high storage capacities beyond theoretical values, the surface capacitance on metal nanoparticles involving spin-polarized electrons is consistent with a space charge mechanism. The phenomenon of anomalously high storage capacities in different metal oxides is still under debate, but in situ magnetometry has shown that surface capacitance plays a dominant role in providing extra capacity. This space charge mechanism can be generalized to a broad range of transition metal compounds, providing guidance for advanced energy storage systems.
Article
Nanoscience & Nanotechnology
Oleg A. Drozhzhin et al.
Summary: Ti2Nb2O9 with a pseudo-2D layered morphology synthesized via ion exchange route exhibits a highly reversible capacity of 200 mAh g(-1) and shows a single-phase (de)lithiation mechanism with 4.8% unit cell volume change. Operando X-ray absorption near-edge structure (XANES) experiment reveals simultaneous Ti4+/Ti3+ and Nb5+/Nb4+ reduction/oxidation within the whole voltage range, showing great potential as a negative electrode material in high-performance LIBs.
ACS APPLIED MATERIALS & INTERFACES
(2021)
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Kent J. Griffith et al.
Summary: Lithium-ion batteries play a crucial role in portable technology and transportation, with new materials like TiNb2O7 having the potential to reshape the industry. However, translating new materials from laboratory prototypes to commercial products presents challenges.
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Oeznil Budak et al.
Summary: This work presents a facile and scalable two-step synthesis method for preparing Ti2Nb10O29 (TNO)/carbon hybrid material as a promising anode for lithium-ion batteries. The hybrid material exhibited high specific capacity, excellent cycling stability, and improved rate handling due to the addition of carbon.
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Jinfeng Zeng et al.
Summary: Ti2Nb10O29 is considered as a potential anode material for lithium-ion batteries due to its unique mesoscopic structure, which effectively shortens the ion diffusion pathway and delivers high reversible capacity and rate capability.
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Junnan Song et al.
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Summary: Monoclinic TiNb2O7 nanoparticles synthesized by co-precipitation method show good capacity retention at a high current charge/discharge rate and high cycling stability, with an initial specific capacity of 186 mAh/g.
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Linlin Li et al.
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