Article
Chemistry, Multidisciplinary
Kai Yang, Li Sheng, Da Zhu, Yang Hu, Zhuozhuo Tang, Jia Chen, Hongmei Liang, Youzhi Song, Xiaoling Wang, Hong Xu, Xiangming He
Summary: The use of an emerging H2O capture metal-organic framework (MOF-801) as a separator enables stable cycling of Ni-rich batteries with H2O-containing electrolytes, while suppressing cathode fragmentation, Li-Ni intermixing, and Ni dissolution.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Pirmin Stueble, Marcus Mueller, Thomas Bergfeldt, Joachim R. Binder, Andreas Hofmann
Summary: This study focuses on the improved cycling stability of Li-ion batteries using Fe-Ti-doped LiNi0.5Mn1.5O4 (LNMO) high-voltage cathode active material and graphite anodes. By adding 1 wt% Li3PO4 as a cathode additive, the capacity retention for 1000 charge-discharge cycles reaches over 90% and the remaining capacities are 109 mAh g(-1) at an areal capacity of 2.3 mAh cm(-2) (potential range: 3.5-4.9 V). The improved cycling stability is attributed to the low Mn-III content of the Fe-Ti-doped LNMO active material and the use of Li3PO4 as the cathode-additive, which reduces transition metal deposition and prevents Li loss and cell polarization.
Article
Chemistry, Physical
Zawar Alam Qureshi, Hanan Abdurehman Tariq, Hiba Mohammad Hafiz, Rana Abdul Shakoor, Siham AlQaradawi, Ramazan Kahraman
Summary: This study presents a novel cobalt-free LiNi0.5Mn1.5O4 cathode material with ceria coating and graphene wrapping. The material exhibits improved cyclability and capacity retention, thanks to the prevention of unwanted phases formation and morphology alteration by the ceria coating, as well as reduced adverse reactions and Mn3+ dissolution by the ceria coating and graphene wrapping. This innovative material design strategy can be applied to enhance the electrochemical performance of other lithium-ion battery cathode materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Hanan Abdurehman Tariq, Jeffin James Abraham, Aisha Abdul Quddus, Siham AlQaradawi, Ramazan Kahraman, R. A. Shakoor
Summary: The study successfully synthesized Y2O3-coated quasi-spheres of high-energy density LiNi0.5Mn1.5O4 cathode material covered in graphene using a microwave-assisted chemical co-precipitation technique. The graphene-assisted coating not only improves the electrical conductivity of the electrode but also effectively inhibits the production of undesirable phases, enhancing the cyclic performance of the material. Furthermore, the proposed material synthesis strategy provides a new approach for the study of other types of electrode materials.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Multidisciplinary Sciences
Xiaobo Zhu, Tobias U. Schulli, Xiaowei Yang, Tongen Lin, Yuxiang Hu, Ningyan Cheng, Hiroki Fujii, Kiyoshi Ozawa, Bruce Cowie, Qinfen Gu, Si Zhou, Zhenxiang Cheng, Yi Du, Lianzhou Wang
Summary: Transition metal dissolution in cathode materials limits the cycle life of Li-ion batteries. This study demonstrates the use of an atomic-thin protecting layer on the surface of a high-voltage cathode material, enabling long-term cycling of Li-ion batteries.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Peiyu Hou, Yuhang Tian, Zezhou Lin, Mohan Dong, Feng Li
Summary: Tuning the exposed crystal facets of LiMn2O4 cathode, particularly the {111}, {110}, and {100} facets, can enhance their structural stability in advanced lithium-ion batteries. The impact of these varied exposed facets on the electrochemical properties is still under debate. In this study, octahedral LiMn2O4 with only {111} facets and truncated octahedral LiMn2O4 (TO-LMO) with both {111} and {100} facets were designed. TO-LMO with different ratios of {100}/{111} facets were prepared using a Li-deficient composite. It was found that the incorporation of {100} facets on the {111} facets effectively reduces the dissolution of Mn2+ into the electrolyte, leading to improved cycling stability, especially at high temperatures.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Taeho Yoon, Jiyong Soon, Tae Jin Lee, Ji Heon Ryu, Seung M. Oh
Summary: This study investigates the local dissolution of CEI and its adverse effects on the electrochemical performance of high-voltage spinel electrode. Corrosive acidic HF generated during electrolyte oxidation damages CEI by leaching inorganic components like LiF and LixPOyFz. However, with the presence of Al2O3 as an HF scavenger, CEI remains relatively stable leading to significantly improved coulombic efficiency.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Aoxuan Wang, Kaixin Zhang, Linxue Zhang, Qingtao Ma, Shoubin Zhou, Qinhai Jiang, Zhenglin Hu, Jiayan Luo
Summary: In this study, a self-supporting porous lithium foam anode was obtained through a melt foaming method. The lithium foam anode has an adjustable interpenetrating pore structure and a dense Li3N protective layer coating on the inner surface, which enables it to have great tolerance to electrode volume variation, parasitic reaction, and dendritic growth during cycling.
Review
Materials Science, Multidisciplinary
Xiaomei Liu, Ze Wu, Leqiong Xie, Li Sheng, Jianhong Liu, Li Wang, Kai Wu, Xiangming He
Summary: In the past decade, the rapid development of lithium-ion battery (LIB) energy storage systems has supported the efficient operation of renewable energy stations. However, the current LIB falls short of meeting the demand for a longer service life. Prelithiation technology has been widely studied to improve the service life of LIBs, and this review summarizes different prelithiation methods. It also analyzes the challenges and potential of large-scale industrialization of prelithiation technology based on industry compatibility, prelithiation efficiency, and energy density. Furthermore, the future trends of LIB improvement using overlithiated cathode materials are discussed.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Weidong Zhang, Qing Zhao, Yunpeng Hou, Zeyu Shen, Lei Fan, Shaodong Zhou, Yingying Lu, Lynden A. Archer
Summary: This study presents a method utilizing anisotropic nanostructures to form dynamic interphases in battery electrolytes, achieving ordered assembly of metal electrodeposits and high anode reversibility. The research demonstrates the promotion of vertically aligned and spatially compact zinc electrodeposits with unprecedented reversibility, as well as uniform growth of compact magnesium and aluminum electrodeposits, offering a general pathway toward energy-dense metal batteries based on earth-abundant anode chemistries.
Article
Chemistry, Multidisciplinary
Zheng Li, Yuan Li, Chen-Xi Bi, Qian-Kui Zhang, Li-Peng Hou, Xi-Yao Li, Jin Ma, Xue-Qiang Zhang, Bo-Quan Li, Rui Wen, Qiang Zhang
Summary: This study constructs an organic-rich solid electrolyte interphase (SEI) to inhibit the parasitic reactions between lithium polysulfides (LiPSs) and Li metal anodes, achieving long-cycling Li-S batteries. The organic-rich SEI effectively inhibits the LiPS parasitic reactions and protects working Li metal anodes, extending the cycling lifespan of Li-S batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Seunghwan Lee, Hyoungchul Kim, Jong-Ho Lee, Byung-Kook Kim, Hyunjung Shin, Joosun Kim, Sangbaek Park
Summary: This study reveals that the crystal facets exposed on LiNi0.5Mn1.5O4 cathodes have a significant impact on the solid nano-interface behavior, with loosely packed {100} facets enhancing lithium ion diffusion and densely packed {111} facets improving cycle stability. Stable {111} facets are particularly effective in suppressing transition metal dissolution and diffusion, leading to a high retention rate of 99.6% after 100 cycles. Additionally, the presence of an amorphous cathode surface layer and twin boundaries inside the cathode are identified as crystallographic origins that hinder battery performance.
Article
Chemistry, Physical
Yao Liu, Rui Wang, Wei Yan, Wenbei Yu, Jiujun Zhang
Summary: This study synthesized hollow Cu2O nanospheres as anode materials for lithium-ion batteries using a simple and low-cost method, and investigated the relationship between structure and electrochemical performance. The Cu2O-HNs anode materials demonstrated high performance due to their high surface area and active surface facets. The results highlight the potential of Cu2O-HNs as high-energy anode materials for practical lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Liang Zhan, Xiaosong Zhou, Jin Luo, Xuliang Fan, Xiaomei Ning
Summary: An urchin-like Nb2O5/CNT modified separator was fabricated with strong chemical capturing ability and conductive network, which can effectively alleviate the shuttle effect of polysulfide in lithium-sulfur batteries.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Zheng Li, Li-Peng Hou, Nan Yao, Xi-Yao Li, Zi-Xian Chen, Xiang Chen, Xue-Qiang Zhang, Bo-Quan Li, Qiang Zhang
Summary: This study investigates the relationship between polysulfide solvation structure and electrode kinetics in lithium-sulfur batteries and proposes methods to improve their cycling performance. The solvation structure derived from strong solvating power electrolyte leads to rapid anode kinetics, while that derived from weak solvating power electrolyte causes slow cathode kinetics. A solvation structure with medium solvating power balances both cathode and anode kinetics, enhancing the cycling performance of lithium-sulfur batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Zhe Guo, Gang Wu, Xiaojian Tan, Ruoyu Wang, Zongwei Zhang, Guangjie Wu, Qiang Zhang, Jiehua Wu, Guo-Qiang Liu, Jun Jiang
Summary: The coexistence of midgap state and valence band degeneracy in Bi-alloyed GeTe through In-Cd codoping can modify the valence band structure. Doping induces a midgap state and improves the Seebeck coefficient near room temperature, while Cd doping increases the Seebeck coefficient in the mid-high temperature range by promoting valence band convergence. The synergistic effects enhance the density of state effective mass and yield excellent thermoelectric properties for the Ge0.89Bi0.06In0.01Cd0.04Te sample.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Hao Li, Yingjie Zhao, Ilya Kolesnikov, Shiqing Xu, Liang Chen, Gongxun Bai
Summary: This study successfully developed rare earth ions-doped Ba2LaF7 nanocrystals as the core material in a multi-functional system for photothermal therapy. Optical temperature measurement based on fluorescence intensity ratio improved sensitivity, and the nanocrystals showed a good photothermal response to laser pumping power and could be used for photothermal imaging.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Qiang Zhang, Minhui Yuan, Kaikai Pang, Yuyou Zhang, Ruoyu Wang, Xiaojian Tan, Gang Wu, Haoyang Hu, Jiehua Wu, Peng Sun, Guo-Qiang Liu, Jun Jiang
Summary: In this study, an effective method was reported to improve the low thermoelectric efficiency of p-type (Bi,Sb)2Te3 by incorporating Ag8GeTe6 and Se. The addition of Ag and Ge atoms optimized the carrier concentration and effective mass, while the Sb-rich nanoprecipitates formed coherent interfaces with little loss of carrier mobility. The subsequent Se doping introduced multiple phonon scattering sources and significantly suppressed the lattice thermal conductivity. The optimized sample achieved a high peak ZT of 1.53 at 350 K and a remarkable average ZT of 1.31 (300-500 K), with an extraordinary conversion efficiency of 6.3% at Delta T = 245 K for the constructed TE module.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Longbing Yi, Haowei Xu, Haibing Yang, Shaolin Huang, Hao Yang, Yanan Li, Qiang Zhang, Zhe Guo, Haoyang Hu, Peng Sun, Xiaojian Tan, Guoqiang Liu, Kun Song, Jun Jiang
Summary: A theoretical model was developed to analyze the Bi2Te3-based TEG system, and the results showed that increasing the height of TEG not only improves conversion efficiency but also leads to a peak value of output power. The height of the fin plays a more essential role than the thickness of the fin in optimizing the performance of TEG. By adding an electrical fan, the net output power is doubled and the net conversion efficiency is improved by more than 80%. The study also designed the structure of the TEG system for different material parameters using the theoretical method.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Yanbang Lian, Congcong Wang, Yu Meng, Junqiang Dong, Jianbin Zhang, Shiqing Xu, Gongxun Bai, Jianbo Gao
Summary: In this study, we prepared two-dimensional heterostructures with bismuth selenide and tungsten selenide nanosheets as photothermal nanoagents. The near-infrared photothermal conversion of the selenide heterostructure nanosheets reached up to 40.75% under 808 nm excitation. Our experiments demonstrated that the heterostructure nanosheets had low toxicity and high biocompatibility both in vitro and in vivo. The nanoagents based on heterostructures effectively achieved photothermal tumor ablation, indicating great potential application in cancer therapy.
Article
Chemistry, Multidisciplinary
Gang Wu, Qiang Zhang, Yuntian Fu, Xiaojian Tan, Jacques G. Noudem, Zongwei Zhang, Chen Cui, Peng Sun, Haoyang Hu, Jiehua Wu, Guo-Qiang Liu, Jun Jiang
Summary: By incorporating Ag5SbSe4, the thermoelectric performance of Bi0.42Sb1.58Te3 is improved, achieving a peak ZT of 1.40 at 375 K and a high average ZT of 1.25 between 300 and 500 K. The outstanding thermoelectric performance is attributed to the synergistic effects of improved effective mass, reduced bipolar thermal conductivity, and suppressed lattice thermal conductivity. The thermoelectric module consisting of p-type Bi0.42Sb1.58Te3 + 0.10 wt% Ag5SbSe4 and zone-melted n-type Bi2Te2.7Se0.3 exhibits a high conversion efficiency of 6.5% at a temperature gradient of 200 K, showing promising applications for low-grade heat harvest near room temperature.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Gang Wu, Xiaojian Tan, Minhui Yuan, Qiang Zhang, Jacques G. Noudem, Zehua Liu, Chen Cui, Jiehua Wu, Haoyang Hu, Peng Sun, Guo-Qiang Liu, Jun Jiang
Summary: A n-type Bi2Te2.7Se0.3 + x wt% PbI2 polycrystalline material with high texture degree and various microstructures was prepared by the temperature gradient method. The dilute PbI2 doping not only adjusted the carrier concentration to an optimal level but also reduced the lattice thermal conductivity, resulting in a peak ZT of 1.26 and improved Vickers hardness of 0.48 GPa.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Materials Science, Multidisciplinary
Chuan-Dong Zhou, Bo Liang, Wen-Jie Huang, Jacques-Guillaume Noudem, Xiao-Jian Tan, Jun Jiang
Summary: This review summarizes the recent progress in studying phonon dispersion models and proposes using the modified sinusoidal phonon dispersion model for accurately determining lattice thermal conductivity. Furthermore, experimental methods that can reduce lattice thermal conductivity in thermoelectric materials are reviewed, such as methods that generate standing waves or anharmonic lattice vibrations. A high concentration of standing waves and anharmonic lattice vibrations can effectively suppress excessive lattice thermal conductivity. Finally, this review discusses the challenges of applying sinusoidal phonon dispersion to real materials, which are often complicated and time-consuming, especially when dealing with material defects.
Article
Chemistry, Multidisciplinary
Le Wang, Gongxun Bai, Peng Xue, Shuqin Zhang, Liang Chen, Shiqing Xu
Summary: Radiation cooling technology plays an important role in reducing energy transmission, alleviating urban heat island effect, and saving energy. This study prepared red and orange materials with excellent performance through green synthesis method and fabricated colored films, which can effectively reduce the surface temperature of buildings.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Hongbin Zhang, Jiasong Zhang, Renguang Ye, Shiqing Xu, Gongxun Bai
Summary: In this study, we successfully prepared a series of cerium sulfide colorant powders using the hydrothermal method and chemical doping engineering. The effect of La3+ doping concentration on the crystal structure and spectral properties of gamma-Ce2S3 was investigated. The prepared light-emitting device can emit red light with a high degree of purity, which is advantageous for information display and the growth of certain plants. Based on the findings, cerium sulfide colorant powders have broad applications in optoelectronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Yongjie Yu, Kun He, Haibo Xu, Zhen Xiao, Liang Chen, Shiqing Xu, Gongxun Bai
Summary: Flexible electroluminescent devices with phosphor layers are fabricated by a solution method in this study, using polyvinylidene difluoride as the dielectric layer and ionic hydrogels as electrodes. These devices can be effectively driven even at an operating frequency of 0.1 kHz and exhibit multi-color emission. The results demonstrate the promising potential of these developed devices for flexible optoelectronics.
Article
Chemistry, Multidisciplinary
Yanbang Lian, Congcong Wang, Yu Meng, Junqiang Dong, Jianbin Zhang, Shiqing Xu, Gongxun Bai, Jianbo Gao
Summary: In this study, two-dimensional heterostructures with bismuth selenide and tungsten selenide nanosheets were prepared as photothermal nanoagents. The near-infrared photothermal conversion of the selenide heterostructure nanosheets reached up to 40.75% under 808 nm excitation. The experiments with mice demonstrated low toxicity and high biocompatibility of the heterostructure nanosheets, both in vitro and in vivo. The developed selenide nanosheets have great potential application in cancer therapy.
Article
Materials Science, Multidisciplinary
Xin Zhang, Jianfeng Cai, Xiaojian Tan, Shuai Zhuang, Wenjie Huang, Zongwei Zhang, Haoyang Hu, Jiehua Wu, Guo-Qiang Liu, Jun Jiang
Summary: In this study, n-type SnSe0.95-based materials were prepared using PbCl2 as an electron dopant through ball milling and hot-pressing processes. It was found that PbCl2 effectively increased the carrier concentration and improved the thermoelectric performance. Electronic transport measurements showed an enhanced power factor in the 6% PbCl2 doped sample. TEM images revealed the presence of dislocations and grain boundaries in the polycrystalline, which enhanced phonon scattering and suppressed lattice thermal conductivity. As a result, a maximum ZT value of 1.13 at 823 K was obtained in the n-type SnSe0.95 + 6% PbCl2 polycrystalline sample parallel to the hot-pressing direction.
MATERIALS ADVANCES
(2023)
Article
Nanoscience & Nanotechnology
Wenjie Zhou, Kaikai Pang, Zongwei Zhang, Hao Yang, Qiang Zhang, Yanan Li, Yuyou Zhang, Haoyang Hu, Xiaojian Tan, Peng Sun, Jiehua Wu, Guoqiang Liu, Jun Jiang
Summary: Commercial Bi2Te3-based thermoelectric coolers traditionally consist of equal-size p-type and n-type legs, which limit the cooling temperature differences when their electrical or thermal characteristics differ significantly. This study presents a novel design for optimizing the performance of these coolers by utilizing higher ZT p-type materials and optimizing the structural matching of the legs. The research findings demonstrate improved cooling performance and temperature differences through the proposed design.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Yuyou Zhang, Kaikai Pang, Qiang Zhang, Yanan Li, Wenjie Zhou, Xiaojian Tan, Jacques G. Noudem, Gang Wu, Lidong Chen, Haoyang Hu, Peng Sun, Jiehua Wu, Guo-Qiang Liu, Jun Jiang
Summary: This study successfully enhances the thermoelectric performance of Bi2Te3-based alloys by subtly incorporating non-stoichiometric Ag5Te3 and counteractive Se. The addition of Ag5Te3 and Se improves the electrical transport properties and lowers the lattice thermal conductivity. When coupled with other thermoelectric materials, the integrated TE module exhibits significantly improved conversion efficiency and power density, demonstrating great potential for practical applications.
Article
Chemistry, Physical
Sirinya Ukasi, Paritta Jutapukti, Chiranicha Ninthub, Nattapong Pinpru, Phakkhananan Pakawanit, Wanwilai Vittayakorn, Satana Pongampai, Naratip Vittayakorn, Thitirat Charoonsuk
Summary: This study explores the enhancement of electrical output of flexible hybrid piezoelectric-triboelectric nanogenerators by incorporating gamma-glycine into fully organic composites. The research demonstrates the importance of optimized concentrations of gamma-glycine and chitosan in achieving superior performance. The study identifies the critical content of gamma-glycine that leads to the highest output signal, and provides theoretical explanations for this observation.
Article
Chemistry, Physical
Yoonsang Ra, Yu-seop Kim, Seonmo Yang, Namgyu Kang, Gyuwon Oh, Chungyeon Cho, Sangmin Lee, Dongwhi Choi
Summary: In this study, a portable energy harvester (STEP) was proposed to drive various functional LEDs using biomechanical energy. The roles and functionalities of a triboelectric nanogenerator (TENG) and electromagnetic generator (EMG) in the hybrid energy harvester were experimentally demonstrated, and the necessity of hybridization for LED-involved devices was described. The STEP showed promising potential as an effective energy supply strategy for various functional LEDs in related industries.
Article
Chemistry, Physical
Dae Sol Kong, Kyung Hoon Kim, Ying Chieh Hu, Jong Hun Kim, Inseo Kim, Jeongwan Lee, Joonhyuk Lee, Won Hyuk Shon, Hanjin Yoo, Chul-Un Ro, Seungsu Lee, Hyoungjeen Jeen, Minbaek Lee, Minseok Choi, Jong Hoon Jung
Summary: With the rapid development of the Internet of Things and artificial intelligence, smart home has emerged to fulfill the security, convenience, and energy-saving issues of modern life. A flexoelectric mica crystal is used to augment the finger touch-driven triboelectric output for operating a wireless and multichannel smart home controller. This work provides important ingredients for enhancing triboelectric output and realizing a convenient, multifunctional, cost-effective, and adaptable smart home control system without batteries.
Article
Chemistry, Physical
Yi Han, Fang Wu, Xiaozhen Du, Zihao Li, Haixiang Chen, Dongxing Guo, Junlei Wang, Hong Yu
Summary: This paper presents a novel type of triboelectric nanogenerator that utilizes wind energy, with a Y-type bluff body to enhance vibration and output power. The application of this generator successfully provides power for a wireless temperature and humidity sensor.
Article
Chemistry, Physical
Wen Zhang, Fangyuan Cheng, Miao Chang, Yue Xu, Yuyu Li, Shixiong Sun, Liang Wang, Leimin Xu, Qing Li, Chun Fang, Meng Wang, Yuhao Lu, Jiantao Han, Yunhui Huang
Summary: This study successfully induced the formation of a uniform and robust CEI by constructing ZrO2 nano-rivets on the surface of LCO, stabilizing the surface of high-voltage LCO and facilitating lithium-ion diffusion.
Article
Chemistry, Physical
Karl P. Olson, Laurence D. Marks
Summary: This paper investigates the role of contacting shapes in triboelectricity and provides scaling rules for designing energy harvesting devices.
Article
Chemistry, Physical
Jong-An Choi, Jingu Jeong, Mingyu Kang, Hee-Jin Ko, Taehoon Kim, Keun Park, Jongbaeg Kim, Soonjae Pyo
Summary: Wind-driven triboelectric nanogenerators (WTENGs) are a promising emerging technology for sustainable wind energy harvesting, offering high output performance, lightweight design, and compact dimensions. This study introduces an innovative WTENG design that leverages a rolling-based mechanism to achieve efficient omnidirectional wind energy harvesting.
Article
Chemistry, Physical
Liwei Dong, Qian Tang, Chaoyang Zhao, Guobiao Hu, Shuai Qu, Zicheng Liu, Yaowen Yang
Summary: This paper proposes a novel hybrid scheme for flag-type nanogenerators (FNGs) that enhances their performance and broadens their operational wind speed ranges by harnessing the synergistic potential of two aerodynamic behaviors. The proposed flag-type triboelectric-piezoelectric hybrid nanogenerator (FTPNG) integrates flapping piezoelectric flags (PEFs) and a fluttering triboelectric flag (TEF). The FTPNG achieves significant power generation and a broad wind speed range, surpassing other FNGs, making it suitable for various self-powered systems and Internet of Things applications.
Review
Chemistry, Physical
Yunmeng Li, Xin Liu, Zewei Ren, Jianjun Luo, Chi Zhang, Changyong (Chase) Cao, Hua Yuan, Yaokun Pang
Summary: The demand for green and eco-friendly materials is growing due to increasing environmental concerns related to traditional petroleum-based products. Marine biomaterials have emerged as a promising alternative, thanks to their abundant availability, biocompatibility, biodegradability, and low toxicity. In this review, we discuss the development and applications of triboelectric nanogenerators (TENGs) based on marine biomaterials. The operational modes, foundational principles, intrinsic qualities, and advantages of marine biomaterials commonly used in TENG designs are highlighted. Approaches to enhance the efficacy of TENGs derived from marine biomaterials are also discussed, along with documented applications from existing literature. Furthermore, the existing challenges and future directions in marine biomaterial-inspired TENGs are explored.
Article
Chemistry, Physical
Matthew P. Wells, Adam J. Lovett, Yizhi Zhang, Zhongxia Shang, Kosova Kreka, Babak Bakhit, Haiyan Wang, Albert Tarancon, Judith L. MacManus-Driscoll
Summary: Reversible solid oxide cells (rSOCs) offer a promising solution to efficient energy conversion, but have been limited in portable power and electrolysis applications due to excessive polarisation resistance of the oxygen electrode at low temperatures. This study demonstrates the growth of symmetric and complete rSOC structures with reduced polarisation resistance by tuning oxygen vacancy through annealing, providing a promising route towards high-performance rSOC devices for portable power applications.
Article
Chemistry, Physical
Kangkang Bao, Minghui Wang, Yue Zheng, Panpan Wang, Liwen Yang, Yang Jin, Hui Wu, Bin Sun
Summary: This study utilizes ethanol as an electrolyte additive to modulate the migration of zinc ions and the surface structure of zinc anodes, resulting in improved capacity retention and cycle life of zinc-based aqueous batteries.
Article
Chemistry, Physical
Haichao Yang, Wensi Cai, Ming Wang, Saif M. H. Qaid, Zhiyuan Xu, Huaxin Wang
Summary: The introduction of sodium alginate (SA) into perovskite solar cells improves the carrier dynamics, stability, and performance by inhibiting nonradiative recombination and retarded charge dynamics.
Article
Chemistry, Physical
Cuirong Zhang, Mingyuan Wei, Zihan Chen, Wansheng Lin, Shifan Yu, Yijing Xu, Chao Wei, Jinwei Zhang, Ziquan Guo, Yuanjin Zheng, Qingliang Liao, Xinqin Liao, Zhong Chen
Summary: Artificial Intelligence of Things (AIoT) aims to establish smart and informative interactions between humans and devices. However, common pixelated sensing arrays in AIoT applications present problems such as hard and brittle devices, complex structures, and low precision. This article introduces an innovative solution called the all-in-one intelligent semitransparent interactive nerve patch (AISI nerve patch), which integrates sensing, recognition, and transmission functionalities into a thin and flexible patch. The AISI nerve patch is semitransparent, allowing for accurate identification without affecting aesthetics, and it can be attached to any curved surface for intelligent and interactive applications. With rapid response time and high precision recognition, it enables the integration of artificial intelligence and achieves high recognition accuracy for further development of AIoT.
Article
Chemistry, Physical
Youcun Bai, Heng Zhang, Huijun Song, Chong Zhu, Lijin Yan, Qin Hu, Chang Ming Li
Summary: A novel stainless-steel supported lattice-mismatched V-S-Se layered compound with high selenium vacancy was synthesized by adjusting the molar ratio of sulfur to selenium. The introduction of selenium vacancies created additional redox peaks of sulfur, providing more mass transport channels and active sites for zinc ions. The specific capacity and cycle stability of the electrode were significantly improved, demonstrating great potential for practical applications and providing insights into the effects of defects on battery performance.
Article
Chemistry, Physical
Yao Xiao, Puxian Xiong, Yakun Le, Zhenjie Lun, Kang Chen, Zhiduo Wang, Peishan Shao, Zhicong Chen, Dongdan Chen, Zhongmin Yang
Summary: This study successfully synthesized a material with multi-stimulus-responsive luminescence and confirmed the internal relationship between luminescence and defects by regulating the distribution and depth of defects. The dynamic process of multi-stimulus-responsive luminescence was validated by experimental and calculation results.
