Article
Chemistry, Physical
Fanshi Wu, Junjie Yuan, Wenxin Lai, Liangwei Fu, Biao Xu
Summary: This study demonstrates a convenient approach to synthesize layered materials with isotropic electrical and thermal transport behaviors through a precursor of metastable phase. The effect of Ag doping on facilitating the formation of metastable SnS and the intrinsic mechanisms of its nearly isotropic thermoelectric properties are elucidated.
Article
Chemistry, Multidisciplinary
Victor Oestreicher, Diego Hunt, Christian Dolle, Paula Borovik, Matias Jobbagy, Gonzalo Abellan, Eugenio Coronado
Summary: A significant change in magnetic behavior dependent on the parity of organic linker molecules was discovered in layered Co-II hydroxides functionalized with dicarboxylic molecules. Odd alkyl chain hybrids exhibit coercive fields below 3500 Oe and spontaneous magnetization below 20 K, while even alkyl chain hybrids behave as hard magnets with a coercive field of 5500 Oe and a higher Curie temperature than 55 K. This variation is attributed to differences in molecular orientation and covalent linkage configurations affecting the magnetic coupling of octahedral and tetrahedral sublattices.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Shivraj M. Mahadik, Nilesh R. Chodankar, Young-Kyu Han, Deepak P. Dubal, Sarita Patil
Summary: This review elaborates on the recent advances in the use of nickel cobaltite (NiCo2O4) as a potential positive electrode for hybrid supercapacitors (HSCs) to achieve high energy density without sacrificing power density and cycling stability.Introduction of structural benefits, charge storage mechanisms, and composites of NiCo2O4 with various materials helps in enhancing the electrochemical performance of HSCs. Key scientific challenges and perspectives for building high-performance HSCs for future applications are also discussed.
Review
Chemistry, Multidisciplinary
Yufei Zhang, Edison Huixiang Ang, Yang Yang, Minghui Ye, Wencheng Du, Cheng Chao Li
Summary: Layered materials are ideal electrodes for the new generation of highly efficient secondary ion batteries and supercapacitors due to their flexible 2D structures and high theoretical capacities. Interlayer engineering strategies are effective approaches to optimize ion transmission kinetics and structural integrity, playing a crucial role in improving electrode performance.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Biochemistry & Molecular Biology
Xiaobing Du, Zhuanglong Lin, Xiaoxia Wang, Kaiyou Zhang, Hao Hu, Shuge Dai
Summary: Hybrid supercapacitor devices, consisting of a battery-type positive electrode and a capacitor-type negative electrode, have gained widespread interest due to their high energy density, long cycling life, high safety, and environmental friendliness. This review discusses the recent developments in electrode materials, structural design, and optimization of performance. The possible classification, potential applications, fundamental theoretical aspects, charge-storage mechanism, and future trends of hybrid supercapacitor devices are also summarized. This review aims to provide future research directions for high-performance energy storage devices.
Article
Chemistry, Multidisciplinary
Dapeng Luo, Jinping Zou, Zhaohui Wei, Xiaoyun Ye, Qianting Wang, Li-An Ma
Summary: In situ construction of polymetallic layered double hydroxide (LDH) @sulfide heterostructures is a promising strategy for achieving excellent electrochemical performance. This study successfully prepared nickel cobalt molybdenum based LDH@sulfide core-shell composites on Ni foam and investigated the effect of sulfidation time on their electrochemical performance. The results showed that a sulfidation time of 2 hours resulted in excellent electrochemical performance with high specific capacitance and capacitance rate performance.
Article
Engineering, Electrical & Electronic
Santosh Kumar Gupta, Kathi Sudarshan, Ruma Gupta, Brindaban Modak, Amit Kumar, Pampa Modak
Summary: This study investigates the symmetrical changes in perovskite structures and their effects on the photoluminescence of Eu3+. The results show that the Ruddlesden-Popper perovskite structure is more distorted compared to the conventional perovskite structure, resulting in different emission spectra of Eu3+. Moreover, the Ruddlesden-Popper perovskite structure has higher defect and oxygen vacancy concentrations, leading to better charge transfer and capacitance performance.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Zheqin Chen, Yongmin Xie, Jiaming Liu, Xiaocong Zhong, Zhifeng Xu, Ruixiang Wang
Summary: Layered LaNi0.6Fe0.4O3-delta (LNFO) was prepared via a modified sol-gel method using a carbon nanotube dispersion for pore formation. The prepared LNFO had expanded specific surface area and uniform pores, exhibiting superior electrochemical performance compared to bulk-LNFO prepared by conventional synthesis method. The catalyst stability was demonstrated through chronoamperometric test for over 7200 s.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Benjamin Strehle, Tanja Zuend, Sabrina Sicolo, Aleksandr Kiessling, Volodymyr Baran, Hubert A. Gasteiger
Summary: Li- and Mn-rich layered oxides (LMR-NCMs) are promising cathode active materials for lithium-ion batteries due to their high energy density. However, they exhibit a unique open circuit voltage (OCV) hysteresis between charge and discharge, which affects the energy efficiency and thermal management of the battery system. This study uses in-situ X-ray powder diffraction to monitor the lattice parameters of LMR-NCMs during initial cycles and shows that the hysteresis disappears when correlated to the OCV instead of the state of charge. The role of transition metal migration on the hysteresis is further investigated using ex-situ XPD and NPD samples, and the results are compared with DFT simulations.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Hyeseung Chung, Yixuan Li, Minghao Zhang, Antonin Grenier, Carlos Mejia, Diyi Cheng, Baharak Sayahpour, Chengyu Song, Meghan Hannah Shen, Ricky Huang, Erik A. Wu, Karena W. Chapman, Suk Jun Kim, Y. Shirley Meng
Summary: By engineering twin boundary defects, capacity decay in multiple classical NMC materials can be mitigated, leading to enhanced electrochemical performance. This strategy effectively suppresses phase transformation and material degradation, providing a novel and universal approach for designing stable intercalation compounds in high voltage, long-cycle life Li-ion batteries.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Fengxia Xin, Hui Zhou, Yanxu Zong, Mateusz Zuba, Yan Chen, Natasha A. Chernova, Jianming Bai, Ben Pei, Anshika Goel, Jatinkumar Rana, Feng Wang, Ke An, Louis F. J. Piper, Guangwen Zhou, M. Stanley Whittingham
Summary: Coating and substitution are effective methods to address the capacity loss and stability challenges of nickel-rich layered metal oxide materials in lithium-ion batteries for electric vehicles. This study demonstrates that Li-free Nb oxide treatment can reduce surface impurities, improve rate performance, and stabilize the structure. Nb substitution leads to better long cycling stability with a high capacity retention after 250 cycles.
ACS ENERGY LETTERS
(2021)
Article
Chemistry, Physical
Sunita Dey, Dongli Zeng, Paul Adamson, Jordi Cabana, Sylvio Indris, Jingyu Lu, Simon J. Clarke, Clare P. Grey
Summary: The electrochemical lithiation and delithiation of the layered oxysulfide Sr2MnO2Cu4-delta S3 has been investigated by a combination of techniques, revealing a complex reaction mechanism involving the insertion/extrusion of Li and Cu, which significantly impact the material's performance.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Raizo Umezawa, Yuka Tsuchiya, Toru Ishigaki, Hongahally Basappa Rajendra, Naoaki Yabuuchi
Summary: Na0.67Cr0.33Mg0.17Ti0.5O2 with a P2-type layered structure has been synthesized and examined as a negative electrode material for rechargeable sodium batteries. The layered oxide delivers a reversible capacity of >90 mA h g(-1), which corresponds to >95% of the theoretical capacity with excellent cyclability for >450 cycles.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Tianyu Liu, Noah P. Holzapfel, Patrick M. Woodward
Summary: A symmetry mode analysis was performed on hybrid organic-inorganic layered perovskites adopting the n = 1 Ruddlesden-Popper (RP) structure, resulting in 47 symmetrically distinct patterns of octahedral tilting. The crystal structures of compounds in this family were compared with the predictions of the analysis. The majority of the unique structures exhibited symmetries in agreement with octahedral tilting alone, while some compounds showed additional features that further lowered the symmetry.
Article
Chemistry, Multidisciplinary
Yipeng Chen, Baokang Dang, Jinzhou Fu, Chao Wang, Caicai Li, Qingfeng Sun, Huiqiao Li
Summary: In this study, a high-performance and inexpensive cooling structural material was developed by assembling delignified biomass cellulose fiber and inorganic microspheres. The material exhibited strong mechanical strength, excellent cooling properties, fire-retardant characteristics, and outdoor antibacterial performance, making it a promising candidate for high-performance cooling structural materials.
Article
Chemistry, Multidisciplinary
Jennifer P. P. Allen, Clare P. P. Grey
Summary: Dissolved transition metal ions can cause peak shifts in NMR spectra of degraded battery electrolytes. In this study, we use this simple and accessible method to calculate magnetic moments for dissolved Ni2+, Mn2+, Co2+, and Cu2+; further analysis of dissolution from LiMn2O4, LiNiO2, and LiNi0.5Mn1.5O4 reveals that the dissolved metals are exclusively divalent.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Edouard Querel, Nicholas J. Williams, Ieuan D. Seymour, Stephen J. Skinner, Ainara Aguadero
Summary: To take full advantage of the energy density benefits of solid-state battery (SSB), their negative electrode should be an alkali metal. However, alkali metals are prone to reduce most solid electrolytes (SE), resulting in the formation of a decomposition layer called an interphase at the metal|SE interface. Obtaining quantitative information about the interphase composition and formation rate is challenging due to the buried interface.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Nicholas J. Williams, Edouard Querel, Ieuan D. Seymour, Stephen J. Skinner, Ainara Aguadero
Summary: Understanding and controlling the degradation at interfaces in batteries is crucial for improving their electrochemical performance and cycling life. This study focuses on the growth kinetics of the interphase formed between solid electrolytes and metallic negative electrodes in solid-state batteries. By adapting the theory of coupled ion-electron transfer, the rate of interphase formation and metal plating during charge can be accurately described. The model is validated using experimental data collected operando. This study highlights the valuable information that can be obtained from a single operando experiment and its relevance to other solid-state electrolyte systems.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Sabine C. Matysik, David J. Wales, Stephen J. Jenkins
Summary: Adsorption of chiral molecules on chiral surfaces leads to diastereomerism, resulting in different adsorption geometries. Through first-principles molecular dynamics simulations, we demonstrate that this diastereomerism is reflected in the desorption motion of chiral molecules from a chiral surface. When desorbing from R-Cu{531}, S-Ala molecules show larger angular momentum and a preference for one rotational direction, while R-Ala molecules do not exhibit such preference. These trends are reversed for desorption from S-Cu{531}. Potential applications include chiral separation techniques and enantiospecific sensors.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Review
Chemistry, Multidisciplinary
Ieuan D. Seymour, Edouard Querel, Rowena H. Brugge, Federico M. Pesci, Ainara Aguadero
Summary: High performance alkali metal anode solid-state batteries require morphologically and chemically stable solid/solid interfaces with fast ion transfer. Void formation at the alkali metal/solid-state electrolyte interface can lead to resistance and dendrite propagation. Improving interfacial adhesion and suppressing void formation are crucial for achieving solid-state batteries that can withstand high current densities without failure.
Article
Multidisciplinary Sciences
Shunsuke Sasaki, Souvik Giri, Simon J. Cassidy, Sunita Dey, Maria Batuk, Daphne Vandemeulebroucke, Giannantonio Cibin, Ronald I. Smith, Philip Holdship, Clare P. Grey, Joke Hadermann, Simon J. Clarke
Summary: This article introduces a method called topochemistry, which enables step-by-step conversions of solid-state materials leading to metastable structures that retain initial structural motifs. Recent advances in this field have revealed examples where bulky anionic constituents actively participate in redox reactions during (de)intercalation processes, accompanied by anion-anion bond formation. This opens up possibilities for designing novel structure types in a controlled manner.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Dominic Hey, Rajesh B. Jethwa, Nadia L. Farag, Bernardine L. D. Rinkel, Evan Wenbo Zhao, Clare P. Grey
Summary: This study demonstrates how an understanding of the degradation processes in aqueous organic redox flow batteries (RFBs) can lead to significant performance improvements. By studying the redox-active biomolecule FMN, derived from vitamin B2, the researchers identify its hydrolysis products and show their impact on charging of an FMN-cyanoferrate battery. The addition of cheap electrolyte salts to lower the pH improves battery efficiency and solubility, bringing RFBs closer to commercial viability.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Sundeep Vema, Farheen N. Sayed, Supreeth Nagendran, Burcu Karagoz, Christian Sternemann, Michael Paulus, Georg Held, Clare P. Grey
Summary: Garnet solid-electrolyte-based Li-metal batteries have the potential to be used in high-energy density and thermally stable energy storage devices. However, the formation of lithium hydroxide and carbonate on the garnet surface in an ambient atmosphere poses processing challenges. This study investigates the decomposition of surface layers under different gas environments and identifies that heating under an oxygen atmosphere leads to a clean garnet surface, while low oxygen partial pressures result in additional carbon deposits. The clean garnet surface reacts with moisture and carbon dioxide, indicating a need for control over CO2 concentration during garnet handling. Symmetric cells with low interface resistance and dendrite-free plating currents are achieved by heating under O₂ and avoiding H₂O and CO₂.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Divyani Gupta, Alankar Kafle, Prajna Parimita Mohanty, Tisita Das, Sudip Chakraborty, Rajeev Ahuja, Tharamani C. Nagaiah
Summary: The electrochemical production of NH3 by Zn-air batteries is a viable and economical approach. The synthesis of amorphous Co2B nanosheets through sonochemical method shows outstanding performance as a trifunctional electrocatalyst for NH3 synthesis and oxygen bifunctional activity for Zn-air batteries.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Jang Mee Lee, Rohan Bahadur, Showkat Hassan Mir, Ian Chirchir Bargoria, Vibin Perumalsamy, Ajanya Maria Ruban, Xiaojiang Yu, Mark B. H. Breese, Jiabao Yi, Sudip Chakraborty, Ajayan Vinu
Summary: A unique and reliable approach is reported to prepare a carbon nitride-nickel iron bimetallic sulfide hybrid with optimal conditions, which can improve the performance of sodium-ion batteries.
Article
Chemistry, Physical
Sundeep Vema, Astrid H. Berge, Supreeth Nagendran, Clare P. Grey
Summary: The localization and site occupancy of dopants in LLZO are not fully understood, and this study shows that Al and Ga only occupy the 24d site in the lattice. Formation of side products can consume Al/Ga dopants and influence the lithium-ion conductivity in LLZO.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Avija Ajayakumar, Chinnadurai Muthu, Manasa G. Basavarajappa, Amarjith V. Dev, Ryosuke Nishikubo, Sudip Chakraborty, Akinori Saeki, Letian Dou, Chakkooth Vijayakumar
Summary: A novel tin (IV) halide perovskite material is synthesized and used to fabricate a UV photodetector. The material exhibits anisotropic photoconductivity and high charge carrier lifetime, resulting in impressive device performance.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Laura L. Driscoll, Elizabeth H. Driscoll, Bo Dong, Farheen N. Sayed, Jacob N. Wilson, Christopher A. O'Keefe, Dominic J. Gardner, Clare P. Grey, Phoebe K. Allan, Adam A. L. Michalchuk, Peter R. Slater
Summary: The synthesis of Li ion battery materials via ball milling has seen significant growth, resulting in the discovery of new high-capacity electrode materials. This study challenges the commonly assumed local heating effects during the milling process, showing that other factors, such as shockwaves and localized pressure, play a crucial role in phase transformations. The research provides a greater understanding of milling as a synthetic pathway and suggests alternative strategies for material preparation.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
James H. J. Ellison, Clare P. Grey
Summary: This paper discusses the short lifespan issue and electrolyte stability problem of lithium-air batteries and suggests the possibility of optimizing cell design and exploring new molecules for electrolyte construction.
FARADAY DISCUSSIONS
(2023)
Article
Materials Science, Multidisciplinary
Hrishit Banerjee, Clare P. Grey, Andrew J. Morris
Summary: Using ab initio dynamical mean-field theory, this study explores the electronic and magnetic states of layered LixMnO2 as a function of x, the state-of-charge. The results show different states of the system during delithiation at various charge states, and the presence of high-spin state is observed to be most likely.
