Article
Chemistry, Multidisciplinary
Moyan Li, Hongjin Liu, Shaozhi Pang, Pengwei Yan, Mingyang Liu, Minghui Ding, Bin Zhang
Summary: Alpha-Fe2O3 fusiform nanorods with a length of about 125 nm and a diameter of 50 nm were successfully synthesized via a simple hydrothermal method. These nanorods exhibited higher visible-light photocatalytic activity compared to commercial Fe2O3 nanoparticles, attributed to their unique three-dimensional structure and lower electron-hole recombination rate.
Article
Chemistry, Physical
Xinyu Wu, Hairong Wang, Jiuhong Wang, Dazuo Wang, Lujia Shi, Xin Tian, Jianhai Sun
Summary: The newly developed porous Au@Cr2O3-In2O3 nanorod sensor exhibits excellent detection ability for VOCs biomarkers, high selectivity, and long-term stability, making it a promising gas sensing material for breath VOCs gas detection in related diseases diagnosis.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Chemical
Congyi Hu, Changping Yang, Xue Wang, Xiaoyan Wang, Shujun Zhen, Lei Zhan, Chengzhi Huang, Yuanfang Li
Summary: In this study, a rapid and facile method was developed to prepare Au@NH2-MIL-101(Fe) nanoparticles with great structural stability and superior catalytic activity for the efficient reduction of 4-nitrophenol to 4-aminophenol. The composite membranes also exhibited excellent performance in treating high concentration 4-NP wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Electrochemistry
Hui Liu, Juemin Song, Jiaxi Zhang, Zheng Li, Hongjie Fang, Qian Zhang, Xuehua He, Changbo Lu, Wanli Xu, Kun Yu
Summary: In this study, MnO2/CeO2 electrocatalysts were synthesized by in situ decoration of alpha-MnO2 with CeO2 particles, showing improved performance in the oxygen reduction reaction and Mg-air battery applications. The control of the molar ratio of Ce3+/Mn7+ in the precursor allowed for increased surface area and catalytic active sites, leading to excellent four-electron transfer process and long-term stability.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Engineering, Electrical & Electronic
Maloy Das, Amit Kumar Shringi, Mahesh Kumar
Summary: Metal oxide-based thin-film sensors have been widely studied and commercialized for gas sensing applications, but they suffer from poor sensing response and high-temperature operation. In this study, a MoS2 decorated alpha-Fe2O3 thin-film-based gas sensor was demonstrated, which showed improved response and high sensitivity and selectivity towards NO2 gas.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Physical
Lin Li, Fenglian Qi, Jiong Guo, Jing Fan, Wenxiang Zheng, Murtaza Ghulam, Weizhi Wang, Zihui Meng, Lili Qiu
Summary: In this study, Fe2O3@Au hexagonal nanodisks with tunable near-infrared (NIR) absorptions were successfully prepared. The localized surface plasmon resonance (LSPR) peaks of Au nanodisks were accurately tuned in the NIR therapeutic window. The Fe2O3@Au nanodisks showed low cytotoxicity and high photothermal therapy (PTT) performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Energy & Fuels
Ying Zeng, Dong Xie, Shuzhao Ai, Han Huang, Zeqiang Zheng, Shilei Xie, Peng Liu, Shoushan Wang, Min Zhang, Faliang Cheng
Summary: The BPC/alpha-Fe2O3@PPy composite, with improved charge transfer efficiency and reduced volume variation, showed excellent cycle stability and high-rate performance as an anode for lithium-ion batteries. This sustainable approach offers a promising solution for renewable energy applications.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Electrical & Electronic
Huijie Wu, Yuan Li, Bo Song, Qing Li
Summary: This work reports the synthesis of porous waist drum-like alpha-Fe2O3 nanocrystals with high yield by hydrothermal method for supercapacitor application. The unique nanostructure of the nanocrystals provides fast ion/electron transfer, resulting in noticeable pseudocapacitive properties with high specific capacitance and good cycling stability.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Zhiwen Long, Luhan Yuan, Chu Shi, Caiqin Wu, Hui Qiao, Keliang Wang
Summary: In this study, a porous Fe2O3 nanorod-decorated hollow carbon nanofiber (HNF) anode was designed to improve the rate performance and cycling stability of lithium-ion batteries. The unique porous hollow structure provided free space that effectively alleviated volume expansion and facilitated the exposure of more active sites during the lithiation/delithiation process, leading to outstanding electrochemical performance.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Physics, Multidisciplinary
Rahul Nihal, Rahul Sharma, Mamta Sharma, J. K. Goswamy
Summary: In this study, WO3-SnO2 and Au decorated WO3-SnO2 nanocomposite were synthesized by hydrothermal method. Optical characterization revealed a reduction in band gap (Eg) from 3.56 to 3.03 eV after adding Au to WO3-SnO2, indicating improved crystallinity. FTIR spectroscopy confirmed the chemical bonding between Au and WO3-SnO2. XRD analysis showed a decrease in crystallite size from 8 to 6.7 nm with Au addition. FESEM was used to investigate the morphology, while EDS confirmed the doping of Au. The sensing properties of WO3-SnO2/Au nanocomposite for Benzene were studied, showing increased sensitivity and reduced response/recovery time with Au addition. The material exhibited high selectivity for benzene compared to other compounds.
Article
Chemistry, Multidisciplinary
Lexian Sang, Yun Wang, Shan Sun, Yi Tian, Yunying Xie, Fuchao Jia, Tong Zhou, Guangchao Yin, Fazhe Sun, Xiaomei Wang
Summary: In this study, Au/α-Fe2O3 composite sensors were prepared and exhibited high selectivity and response for isopropanol detection. Especially, the sample with an Au-modified concentration of 7 mol% showed the best performance with a response to 100 ppm isopropanol that was 4.5 times higher than that of pure α-Fe2O3.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Rakesh K. Sahoo, Ashis K. Manna, Arya Das, Arijit Mitra, Mamata Mohapatra, Sachindra Nath Sarangi, Parveen Garg, Uday Deshpande, Shikha Varma
Summary: In this study, a simple interface modified strategy was used to self-assemble Au@Fe2O3 nanostructures on graphene substrate, and the physico-chemical properties and photo-induced charge transfer mechanism were systematically analyzed. The hybrid material showed altered light absorption capacity and band gap, enabling visible light-responsive photocatalysis, as well as superparamagnetic behavior and magnetic separation ability. The AFG catalyst exhibited excellent photocatalytic activity against various dyes under visible light.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Analytical
Ling Li, Longcheng Zhang, Lichen Gou, Siqi Wei, Xiandeng Hou, Li Wu
Summary: Metal-semiconductor composites are widely used as SERS substrates, but their limited stability and poor active sites hinder their commercial application. In this study, a novel self-supporting flexible SERS substrate, Au@CoP/CC, was developed. The substrate exhibited excellent corrosion resistance and a low limit of detection using rhodamine 6G as a model dye. Finite-difference time-domain simulation results showed that the substrate can provide regions with intense local electric field enhancement. Moreover, the Au@CoP/CC substrate can degrade target organic dyes under visible light irradiation, enabling self-cleaning and reproduction of SERS-active substrates.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
Yongjiao Sun, Yuchen Hou, Shizhen Wang, Bingliang Wang, Koichi Suematsu, Wendong Zhang, Jie Hu
Summary: In this study, the fabrication process and gas sensing performance of urchin-like Au decorated SnO2/Fe2O3 microspheres were presented. The hierarchical structure of SnO2/Fe2O3 was constructed using Fe2O3 microspheres as a precursor and in-suit growth of SnO2 micropillars. Au nanoparticles were further added to enhance the sensing performance. By modulating the loading amounts of Au nanoparticles, the heterojunctions between SnO2 and Fe2O3 and the sensitization of Au nanoparticles were achieved, leading to improved sensing properties. The sensor with 1wt% Au nanoparticles showed the best performance, with high response, rapid response/recovery time, good linearity, low limit of detection, and excellent selectivity and stability.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Environmental
Lu Chen, Xiao Wang, Zepeng Rao, Zixia Tang, Yan Wang, Gansheng Shi, Guanhong Lu, Xiaofeng Xie, Deliang Chen, Jing Sun
Summary: The MIL-100(Fe)/?-Fe2O3 photocatalysts showed high efficiency in the PCO of VOCs, with a remarkable o-xylene removal rate reaching 100% under 250W xenon lamp irradiation. The hybrid material exhibited a large specific surface area and evenly distributed active sites for effective adsorption of target molecules, suggesting potential for air purification applications. Additionally, the reversible conversion of Fe(III) and Fe(II) under light irradiation plays a key role in the oxidation of o-xylene and generation of reactive radicals in the Z-scheme structure.
CHEMICAL ENGINEERING JOURNAL
(2021)
