Article
Nanoscience & Nanotechnology
Adriana Clarisza, Hailemariam Kassa Bezabh, Shi-Kai Jiang, Chen-Jui Huang, Bizualem Wakuma Olbasa, She-Huang Wu, Wei-Nien Su, Bing Joe Hwang
Summary: A zinc metal anode has the potential to be a promising alternative to lithium-ion batteries due to its high theoretical capacity, low toxicity, and stability in water. By utilizing a highly concentrated salt electrolyte, a low-cost and safe aqueous zinc-ion battery can be developed.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Guangzhi Yang, Jiangqi Zhou, Zhenwang Zhang, Yuanzhe Song, Wei Li, Zhihong Chen, Weiqing Chu, Jinshuo Chen, Yuhua Xue, Chengxin Peng, Wei Tang
Summary: A three-dimensional vertical orientation graphene-polypyrrole thick electrode is proposed for high-energy-power zinc-ion hybrid supercapacitors. The electrode exhibits exceptional capacitive performances, including a high areal capacitance of 927 mF cm-2 and excellent areal energy/power density of 360.4 mu Wh cm-2 and 10.125 mW cm-2.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Huitao Yu, Yiyu Feng, Can Chen, Heng Zhang, Lianqiang Peng, Mengmeng Qin, Wei Feng
Summary: In this study, a composite material with high thermal conductivity, elasticity, and adhesion was successfully fabricated, which exhibited high sensitivity to temperature and pressure and demonstrated self-learning capacity. This material can be developed into core materials in intelligent soft robots.
Article
Materials Science, Paper & Wood
Lvye Yang, Jingqiu Li, Pengcheng Zhang, Jianhao Qiu, Yi Feng, Mengjue Cao, Jianfeng Yao
Summary: A carbon-based zinc-ion hybrid supercapacitor (ZHS) with self-charging ability using ZnCl2-concentrated cellulose hydrogel as electrolyte has been developed, capable of spontaneously recovering discharge capacity when exposed to air. The ZHS has a capacity retention of 70.9% at a high operating voltage of 2.1 V, making it reliable and convenient for practical applications.
Article
Electrochemistry
Max Schammer, Birger Horstmann, Arnulf Latz
Summary: Ionic liquids are proposed as novel electrolytes due to their large electrochemical and thermodynamic stability. A continuum theory is introduced to describe the transport effects and interface structures of pure ionic liquids and ionic liquid mixtures, including highly concentrated electrolytes and water-in-salt electrolytes. The theory is validated in a zinc-ion battery using a mixture of ionic liquid and water as the electrolyte.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Electrochemistry
Mohammad Said El Halimi, Federico Poli, Nicola Mancuso, Alessandro Olivieri, Edoardo Jun Mattioli, Matteo Calvaresi, Tarik Chafik, Alberto Zanelli, Francesca Soavi
Summary: The exponentially growing market of electrochemical energy storage devices necessitates the substitution of flammable, volatile, and toxic electrolytes. The use of Water in salt solutions (WiSE) as a green electrolyte with high safety, low cost, wide electrochemical stability, and high ionic conductivity is of interest. A comprehensive study on circumneutral WiSE based on ammonium acetate has been conducted, focusing on various properties and the effect of factors such as pH, density, viscosity, conductivity, and salt concentration on its performance.
ELECTROCHIMICA ACTA
(2021)
Article
Nanoscience & Nanotechnology
Xinjian Dai, Hao Guan, Xin Wang, Mingyue Wu, Jihang Hu, Xiaoqing Wang
Summary: By converting the honeycombed structure of natural wood into a lamellar architecture via structural engineering, a flexible wood sponge with vertically aligned channels was developed for efficient and salt-resistant solar desalination after surface coating with carbon nanotubes (CNTs). The special lamellar structure provided the wood sponge with faster water transport, lower thermal conductivity, and water evaporation enthalpy, achieving higher evaporation performances compared to natural wood. The developed wood-sponge evaporator exhibited exceptional salt resistance and a high evaporation rate, outperforming most previously reported wood-based evaporators. Rating: 9 out of 10.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Y. Mizuno, Y. Ito, K. Ueda
Summary: The study demonstrates that vertically aligned graphene/diamond heterojunctions can function as optoelectronically-controllable synapses mimicking key characteristics of biological synapses. They exhibit photo-sensing properties, photo-controllable synaptic plasticity, and can serve as image sensors providing optical memory function while selectively memorizing information based on importance. These results may contribute to the development of neuromorphic optical computers simulating human visual memory systems modulated by specific interests.
Article
Chemistry, Analytical
Seong Jae Kim, Ji-hun Jeong, Gaabhin Ryu, Yoon Sick Eom, Sanha Kim
Summary: Surface-enhanced Raman spectroscopy (SERS) is a high-sensitivity, label-free detection method with various analytical applications. Researchers have developed a hydrophobic SERS substrate based on engineered carbon nanotube arrays (CNT-SERS) and studied the role of structural design at both micro and nanoscales. The substrate demonstrated controlled self-enrichment capability and enhanced sensitivity, with a significant increase in the SERS signal. The study also proposed a theoretical model and a concentration strategy inspired by plants for analyte deposition on microarrays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Multidisciplinary
Rebecca A. Gallivan, Julia R. Greer
Summary: The study investigates mechanical behavior of micron-sized nanowire structures through in situ microcompression experiments on zinc oxide nanowires, revealing two failure regimes in bundles and developing a technique for predicting bundle failure stress. The analysis provides guidelines for understanding susceptibility to failure, sensitivity to flaw size, and interfacial interactions in nanowire arrays.
Article
Engineering, Environmental
Yunqiu Du, Guangyu Li, Lin Ye, Chaojie Che, Xiaohong Yang, Lijun Zhao
Summary: The unique structure of this Ni-Zn hydroxide/rGO material with abundant contact sites and high conductivity demonstrates suitable capacitance, appropriate stability, and superior capacity rate property.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Shiqi Lin, Jie Tang, Kun Zhang, Tohru S. Suzuki, Qingshuo Wei, Masakazu Mukaida, Youcheng Zhang, Hiroaki Mamiya, Xiaoliang Yu, Lu-Chang Qin
Summary: Graphene has been widely used as an electrode material for supercapacitors, but the parallel-stacked layers often result in inefficient ion diffusion and electron transfers. By aligning reduced graphene oxide (rGO) using a magnetic field, the electrode showed improved specific capacitance and performance, breaking through the limitations of traditional supercapacitors. This study highlights the potential of aligned rGO to increase the charge/discharge rate and power density of supercapacitors significantly.
JOURNAL OF POWER SOURCES
(2021)
Article
Green & Sustainable Science & Technology
Yongqi Deng, Hongfei Wang, Kefu Zhang, Jun Qiu, Lifeng Yan
Summary: A new hybrid water-in-salt hydrogel electrolyte has been developed to expand the voltage window of ZHSCs, achieving high energy density and excellent cycling stability. Additionally, a flexible quasi-solid-state ZHSC using this electrolyte shows high performance and potential for wearable applications.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Article
Nanoscience & Nanotechnology
Xiaoling Cui, Jingjing Zhang, Jie Wang, Peng Wang, Jinlong Sun, Hong Dong, Dongni Zhao, Chunlei Li, Shuxiang Wen, Shiyou Li
Summary: This study investigates the antioxidation mechanism of highly concentrated electrolytes at high voltage through in situ electrochemical tests and theoretical calculations. The results show that the change in solvation structures makes PF6- anions easier to be oxidized in HCE compared to dilute electrolytes, resulting in a more stable cathode-electrolyte interface film. Additionally, the study demonstrates that the high viscosity of HCEs and the hydrolysis of LiPF6 positively contribute to enhancing the interfacial stability of the electrolyte/electrode at high voltage.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Energy & Fuels
Daman Xu, Yingqi Heng, Xiang Qin, Dongying Hu
Summary: In this study, the key materials for cellulose-based supercapacitors were successfully fabricated using natural and renewable cellulose as substrates. These materials exhibited excellent electrochemical performance and provide insights for the development of cellulose membrane-based energy storage materials.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Applied
Jing Li, Wenwen Shan, Jincan Cui, Hanxun Qiu, Guangzhi Yang, Shiyou Zheng, Junhe Yang
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2020)
Article
Chemistry, Multidisciplinary
Chen Yu, Zhao Weimin, Zhang Quanhai, Yang Guangzhi, Zheng Jianming, Tang Wei, Xu Qunjie, Lai Chunyan, Yang Junhe, Peng Chengxin
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Pathology
Guang-Zhi Yang, Shang-Hua Liang, Xiao-Hong Shi
DIAGNOSTIC PATHOLOGY
(2020)
Article
Nanoscience & Nanotechnology
Shuixin Xia, Xun Zhang, Guangzhi Yang, Lvyunhui Shi, Le Cai, Yujie Xia, Junhe Yang, Shiyou Zheng
Summary: This study demonstrates a safe and scalable strategy to improve the performance of lithium-sulfur batteries by coating fluorinated carbon in the battery construction, enhancing the cycling lifespan and capacity retention. The fluorinated Celgard shows superior performance in modulating ion flux and trapping lithium polysulfides, providing a new approach for sustainable development of lithium-sulfur batteries.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Materials Science, Multidisciplinary
Quanhai Zhang, Jiangqi Zhou, Zhihong Chen, Chao Xu, Wei Tang, Guangzhi Yang, Chunyan Lai, Qunjie Xu, Junhe Yang, Chengxin Peng
Summary: Direct ink writing (DIW) technology is extensively utilized in fabricating energy storage devices due to its excellent process flexibility and geometric controllability, offering higher power density and energy density compared to traditional casting techniques. Recent advances in DIW for emerging energy storage devices, such as SCs, lithium-ion batteries, lithium-sulfur batteries, rechargeable lithium metal batteries, and solid-state batteries, as well as the challenges and potential research possibilities are discussed. It is expected that with the development of 3D printing technology, batteries and SCs with durable lifespans, favorable safety, high energy density, and power density will be widely utilized in various fields.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Chemistry, Analytical
Ling Qian, Zhendong Lei, Xiaoxu Peng, Guangzhi Yang, Zheng Wang
Summary: In this study, a fast and simple method for highly sensitive detection of Cd and Pb elements based on APGD-AES coupling with tungsten coil ETV was proposed. The system showed good accuracy in determining heavy metals in standard samples and human whole blood, with results comparable to ICP-MS.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Physical
Guangzhi Yang, Zhenkun Zhang, Zhenwang Zhang, Li Zhang, Yuhua Xue, Junhe Yang, Chengxin Peng
Summary: The selection of proper electrode materials and the design of rational structure are two efficient approaches to improve the electrochemical performance of supercapacitors. This work successfully achieved a hollow double-shell H-SnO2/MesCHS heterostructure with excellent electrochemical performance, demonstrating high specific capacitance, exceptional cycling stability, and outstanding coulombic efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Biochemistry & Molecular Biology
Xiaoqiang Wang, Yifan Tan, Meijiao Sun, Binbin Yu, Junhe Yang, Yuhua Xue, Guangzhi Yang
Summary: PAN-based porous carbon was prepared by different activation methods, with two-step activation retaining spherical morphology better. The increase in activation time impacted the specific surface area and pore volume. Both one-step and two-step activation methods showed high mass-specific capacitances and good capacitance retentions after cycling.
Article
Chemistry, Multidisciplinary
Yifan Tan, Xiaoqiang Wang, Shen Song, Meijiao Sun, Yuhua Xue, Guangzhi Yang
Summary: Nitrogen-doped cellulose-based porous carbon materials were successfully prepared via hydrothermal method and KOH chemical activation with melamine as a nitrogen-doping precursor. The effects of hydrothermal temperature on the microstructure and surface morphology of the products were investigated, along with the carbon dioxide adsorption capacity. The optimized porous carbon exhibited excellent CO2 adsorption performance, which followed the Freundlich isotherm model.
Article
Biochemistry & Molecular Biology
Peng Xia, Zhenwang Zhang, Zhihong Tang, Yuhua Xue, Jing Li, Guangzhi Yang
Summary: Three-dimensional vertically aligned graphene (3DVAG) prepared by a unidirectional freezing method shows a vertically ordered channel structure and exhibits superior electrochemical performances compared to random structure reduced graphene oxide (3DrGO), including higher specific capacitance, faster ion diffusion, and better rate performance. The constructed 3DVAG zinc-ion hybrid supercapacitor also demonstrates excellent electrochemical performance.
Article
Chemistry, Physical
Guangzhi Yang, Xiaoqiang Wang, Ting Shi, Xinci Wu, Yuhua Xue
Summary: The research found that the weight loss and tumbling strength of coke are influenced by temperature and gas composition, with significant variations in properties of different cokes at 1300 degrees C, closely related to optical texture.
Article
Chemistry, Multidisciplinary
Meijiao Sun, Xiaoqiang Wang, Zhengyu Ye, Xiaodong Chen, Yuhua Xue, Guangzhi Yang
Summary: With the increasing application of electronic equipment, the need for effective heat dissipation materials is growing. In this study, high thermal conductive graphite films were produced by chemically modifying polyimide films. The results showed that the chemically modified polyimide films had higher strength, thermal stability, and crystal arrangement. The graphite films derived from these modified films exhibited larger crystal size and higher thermal conductivity.
Article
Chemistry, Multidisciplinary
Jieting Sun, Yuchuan Guan, Guangzhi Yang, Suxin Qiu, Honglei Shao, Yi Wang, Guisheng Li, Shuning Xiao
Summary: Green and mild sunlight-driven photocatalysis is a promising technology for addressing climate and energy issues. This study demonstrates the use of Cu-doped ZnS and NH2-UiO-66 to create composite photocatalysts, which improve the efficiency of CO2 reduction reactions.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Zhenwang Zhang, Zhenkun Zhang, Zhongjun Feng, Zhihong Chen, Yifan Yang, Qiyu Zhou, Qiang Zhou, Chengxin Peng, Guangzhi Yang
Summary: The performance of supercapacitors depends largely on the material and structure design, with graphene showing great potential in this field. Three-dimensional vertically aligned graphene electrodes prepared by vertically aligning microtextures exhibit excellent reaction kinetics and mass-transfer capability, offering a potential solution for increasing energy density.
CHINESE SCIENCE BULLETIN-CHINESE
(2021)
