Article
Materials Science, Multidisciplinary
Zhaoji Dong, Li Zhong, Yuhui Zhang, Fei Liu, Hui Huang, Zhaoyang Xu
Summary: In this study, a cellulose nanofibers/reduced graphene oxide carbon aerogel (BCRCA) with a unique layered structure was successfully prepared using bidirectional freezing technique and thermal annealing. BCRCA exhibits ultra-low density, high specific surface area, and good compression properties, making it suitable for supercapacitor electrodes and wearable strain sensors.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Energy & Fuels
Xingyue Wu, Junyao Li, Yifang Zhu, Wenrong Cai, Juan Xu, Yong Qin, Yong Kong
Summary: Lightweight and porous polypyrrole (PPy)/Ti3C2Tx/alginate aerogels were prepared via a sacrificial template strategy and used as electrode material in symmetric supercapacitors. The aerogels exhibit high specific capacitance due to the presence of PPy and Ti3C2Tx, and the porous structure facilitates electron and electrolyte ion transfer. When used in symmetric supercapacitors, the aerogels demonstrate high energy density (64 mu Wh cm-2) and power density (0.97 mu W cm-2). Additionally, the aerogels show excellent cyclic stability attributed to the limited volume change of PPy during charge/discharge cycles.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Agricultural Engineering
Ziheng Li, Lumin Chen, Mengya Mu, Houyong Yu, Yingzhan Li, Xiang Chen
Summary: This study utilizes CNF to construct carbon aerogels, and combines with PPy to prepare a new composite material CCAs-P with excellent mechanical properties and superior conductivity. CCAs-P is able to efficiently monitor and record human motion signals.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Materials Science, Multidisciplinary
Chonghao Zhang, Haochen Wang, Yanfeng Gao, Caichao Wan
Summary: This review provides a detailed overview of cellulose-derived carbon aerogels (CDCAs) and their precursors in the field of high-performance green supercapacitor electrodes. The preparation strategies of CDCAs and their precursors are presented, and two crucial approaches for improving energy storage ability, hetero-atom doping and integration with pseudocapacitive materials, are summarized. The role of CDCAs in energy storage ability is analyzed from the perspective of structure-response relationship.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Peng Min, Xiaofeng Li, Pengfei Liu, Ji Liu, Xue-Qin Jia, Xiao-Peng Li, Zhong-Zhen Yu
Summary: The researchers have achieved an ultrahigh sensitivity and low detection limit piezoresistive sensor with lightweight lamellar graphene aerogels (LGAs), which can detect subtle pressure in liquid nitrogen and serve as a sensitive bending sensor for detecting arbitrary bending angles. The sensor is also efficient in detecting biosignals such as wrist pulse and finger bending.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Electrochemistry
Wenyu Liang, Igor Zhitomirsky
Summary: This study proposes an asymmetric supercapacitor device operating in a neutral electrolyte with a voltage window of 1.7 V. MXene-PPy composites are used as the negative electrode, and high capacitance is achieved through optimization of composition and performance. A new strategy for in-situ PPy polymerization on the MXene surface is employed, enhancing the negative electrode performance.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Aifeng Liu, Li Tang, Liang Gong, Shaoji Wu, Jianxin Tang
Summary: This study presents a method to construct polypyrrole@cobalt selenide nanocomposites on nickel foam, which demonstrate enhanced electrical conductivity, rich electroactive sites, and good mechanical stability. The nanocomposites exhibit high specific capacity, capacity retention, and initial capacity retention, making them potential electrode materials for hybrid supercapacitors.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Jong-Hoon Lee, Seul-Yi Lee, Soo-Jin Park
Summary: In recent years, porous carbon materials have been developed for supercapacitor applications. Carbon aerogels with three-dimensional porous networks are promising for electrochemical energy storage. Physical activation using gaseous carbon dioxide provides controllable and eco-friendly processes, while chemical activation produces wastes. The activated carbon aerogels achieved a high specific surface area and large total pore volumes, leading to a high electrical double-layer capacitance. The specific gravimetric capacitance reached up to 89.1 F g(-1) with a high capacitance retention of 93.2% after 3000 cycles.
Article
Chemistry, Multidisciplinary
Antonella Arena, Caterina Branca, Carmine Ciofi, Giovanna D'Angelo, Valentino Romano, Graziella Scandurra
Summary: This research focuses on developing electrochemically active conducting inks using hybrid electrodes, preparing planar supercapacitor prototypes with improved areal capacitance. Experimental results demonstrate that electrodes deposited from inks containing polypyrrole and graphene nanoplatelets significantly enhance the performance of supercapacitors.
Article
Nanoscience & Nanotechnology
Jiefei Ding, Tong Xia, Qing Xia, Guanglong Li, Yingdong Qu
Summary: This study developed PPy-modified Ni3S2 nanosheet electrodes obtained by a hydrothermal approach and electrodeposition method, which can enhance the performance of supercapacitors, improve capacity and cycling stability, and maintain high capacity even at high energy densities.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Yinong Wang, Haiji Huang, Won Mook Choi
Summary: PPy@CoCH/CC composites with unique 3D hierarchical nanostructure synthesized by a simple and cost-effective hydrothermal method exhibit enhanced electrochemical performances, high specific capacitance, and good cycling performance. Additionally, symmetric supercapacitors fabricated using these composites as both positive and negative electrode deliver a high energy density at a power density of 1600 W.kg(-1).
JOURNAL OF ALLOYS AND COMPOUNDS
(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, Multidisciplinary
Jun Zhou, Yuying Zheng, Dongyang Chen
Summary: By using a reduction-reaction-induced self-assembly process, a new type of three-dimensional porous aerogel with partially unzipped multiwalled carbon nanotubes inserted into graphene nanosheets was prepared. The aerogels exhibited excellent electrical contact, prevented restacking of graphene nanosheets, and provided large channels for charge transfer, resulting in promising electrode materials for supercapacitor applications.
Article
Materials Science, Multidisciplinary
Yu Wang, Haihua Wang, Wenjing Zhang, Guiqiang Fei, Kewei Shu, Liyu Sun, Siyu Tian, Huizhu Niu, Mengxi Wang, Guangyu Hu, Yihao Duan
Summary: This work presents a simple method to fabricate ultralong interconnected polypyrrole (PPy-GS) nanowires using a gemini surfactant (GS) as a soft template and dopant. By changing the concentration of GS in the aqueous phase, the electrochemical properties and conductivity of PPy-GS could be significantly altered. The incorporation of GS greatly enhances the conductivity and specific capacitance of PPy-GS.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Engineering, Environmental
Junying Li, Sheng Chen, Xueqian Li, Jiankang Zhang, Haq Nawaz, Yanglei Xu, Fangong Kong, Feng Xu
Summary: In this study, a novel and simple method combining directional stabilization and ambient drying was developed to prepare anisotropic nanocellulose aerogels. The obtained aerogels exhibited an ordered porous structure, distinct anisotropy, excellent mechanical compressibility, and high water-stability. The potential application of the aerogels in fields such as solar steam generation was demonstrated by coating them with polypyrrole to achieve excellent photothermal performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)