Article
Nanoscience & Nanotechnology
Muhammad Hamid Raza, Roberto Di Chio, Kaveh Movlaee, Patrick Amsalem, Norbert Koch, Nicolae Barsan, Giovanni Neri, Nicola Pinna
Summary: Heterostructures made from metal oxide semiconductors (MOS) are crucial for high-performance gas sensors. This study explores the transduction mechanism of heterostructured nanomaterials and relates the sensing response to the MOS shell or the p-n heterojunction. The use of carbon nanotubes as conductive substrates enables the devices to operate at low temperature. The findings are important for the development of next generation gas sensing devices.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Analytical
Tianshuang Wang, Peng Sun, Ke Chen, Yueru Jiang, Wei Tao, Fangmeng Liu, Chenguang Wang, Xu Yan, Geyu Lu
Summary: In this study, core-shell In2O3@ZnO n-n heterostructures were successfully synthesized by depositing ZIF-8 derivative onto wrinkled In2O3 spheres. The control of ZnO shell thickness was achieved by controlling the MOF growth time. The formation of n-n heterojunction at the core-shell interface allowed for the tuning of shell thickness, leading to the control of free charge carrier concentration and improving the gas sensing performance of the sensor.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Qiang Cao, Yushi Xiao, Na Liu, Rong Huang, Chen Ye, ChiHsien Huang, Huan Liu, Gang Han, Lidong Wu
Summary: Metal-organic frameworks (MOFs) have potential as heterogeneous biomimetic catalysts due to their high surface area, tunable porosity, and diversity of metals and functional groups. A size-selective MOF coating on the external surface of a biomimetic MOF was used to improve the activity and substrate specificity. The PCN-222@ZIF-8 sensor exhibited high selectivity for catechol, increased sensitivity compared to the PCN-222 sensor, and displayed solvent adaptability.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Muhammad Hamid Raza, Navpreet Kaur, Elisabetta Comini, Nicola Pinna
Summary: In this study, 1D SnO2-SiO2 core-shell nanowires were introduced, showing enhanced selectivity and sensitivity towards hydrogen gas sensing. The thickness of the SiO2 shell and working temperature were strongly correlated with the sensing response.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Engineering, Electrical & Electronic
Samaneh Esmaeili, Mohammad Ali Zanjanchi, Hossein Golmojdeh, Shahab Shariati
Summary: Uniform micro-sized silica spheres coated with mesoporous shells were prepared using a sol-gel method, loaded with sensitive dyes to create a solid-state colorimetric gas sensor for ammonia detection. The sensor array showed an instantaneous response to low concentrations of ammonia gas and was able to detect a wide range of concentrations from 10 to 1000 ppm, with a detection limit of 0.6 ppm.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Xiaohui Yang, Jin Wan, Huijuan Zhang, Yu Wang
Summary: In this study, a two-dimensional core/shell V2O3/VN nanomesh was constructed, which showed improved faradaic efficiency and NH3 yield rate for electrochemical N2 reduction reaction.
Article
Chemistry, Multidisciplinary
Yi Ou, Yong Zhou, Yongcai Guo, Wen Niu, Yanjie Wang, Min Jiao, Chao Gao
Summary: In this study, two-dimensional heterostructures of dysprosium oxide decorated molybdenum trioxide nanoflakes were synthesized, and significant improvements in the performance of ammonia gas sensors were achieved. These sensors exhibited high sensitivity and good humidity resistance.
Article
Chemistry, Physical
Pon Janani Sugumaran, Jing Zhang, Yong Zhang
Summary: In this study, OHP-UCNP heterostructured nanocrystals were successfully synthesized by growing cubic phase NaGdF4 UCNP over cubic phase CsPbBr3 OHP in a seed-mediated process with a small lattice mismatch and converting cubic phase UCNP to hexagonal phase through heating. The resulting nanocrystals showed efficient energy transfer and improved stability, making them promising for optoelectronic and biological applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Environmental Sciences
Mengmeng Zhan, Chuanxin Ge, Shahid Hussain, Ali S. Alkorbi, Raiedhah Alsaiari, Nabil A. Alhemiary, Guanjun Qiao, Guiwu Liu
Summary: Timely detection of harmful, poisonous, and air pollutant gases is crucial for protecting humans from exposure to severe gas levels. Gas-sensing devices based on sphere-like porous SnO2/ZIF-8 nanocomposites provide high surface area, porosity, and active sites for excellent responses in metal oxide gas sensors. The engineered gas sensors show excellent sensing sensitivity, rapid response and recovery times, and favorable selectivity for NO2 gases. Therefore, NO2 gas sensors based on core-shell SnO2/ZIF-8 nanospheres have promising applications in industrial settings.
Article
Chemistry, Multidisciplinary
Zhiwei Wang, Xiang Wang, Qian Chen, Xiaoshan Wang, Xiao Huang, Wei Huang
Summary: The controlled preparation of SnS@NbS2 core@shell and SnS/NbS2 lateral heterostructures was achieved by controlling reaction kinetics. The SnS@NbS2 core@shell heterostructures showed a negative photoresponse in photodetectors due to the Seebeck effect exerted on the NbS2 shell. Compared with pure metallic NbS2, the SnS@NbS2 core@shell heterostructures exhibited a 15 times increased signal-to-noise ratio and much improved photocurrent stability, mainly attributed to charge and heat transfer between the SnS core and NbS2 shell.
Article
Chemistry, Multidisciplinary
Zehao Zhou, Jian Zhao, Zhenghan Di, Bei Liu, Zhaohui Li, Xuemin Wu, Lele Li
Summary: A mesoporous MOF shell was synthesized on the surface of gold nanorods to capture single AuNRs for combinational phototherapy against solid tumors. The core-shell heterostructures combine a mesoporous structure and photoinduced singlet oxygen generation behavior with plasmonic photothermal conversion characteristic of AuNRs, enabling an efficient tumor treatment strategy. Applications beyond cancer therapy, such as plasmonic harvesting of light energy for catalytic reactions within MOFs and multifunctional nanocarriers for agricultural formulations, are also highlighted.
Article
Chemistry, Multidisciplinary
Sukhwinder Singh, Jyotirmoy Deb, Utpal Sarkar, Sandeep Sharma
Summary: The research team developed a MoS2/MoO3 composite with enhanced surface properties using a two-step approach, which exhibited superior sensing characteristics as a gas sensor in detecting NH3 under extreme working conditions. The synergistic effect of heterostructure formation between the base materials contributed to the selective response of the composite towards NH3 gas in humid environments.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Mei-Hua Chen, Qian-Ying Lu, Yi-Ming Li, Ming-Ming Chu, Xue-Bo Cao
Summary: In this study, ZnO@ZIF-8 core-shell heterostructures were successfully synthesized, with ZIF-8 shell effectively increasing the specific surface area of ZnO nanorods. The synergistic effect between ZnO and ZIF-8 resulted in high photocatalytic activity, leading to rapid degradation of methylene blue under solar light irradiation. Additionally, the stability experiments demonstrated that the prepared ZnO@ZIF-8 nanocomposites retained over 95% of their photocatalytic activity after four cycles.
Article
Nanoscience & Nanotechnology
Tingqiang Yang, Lingfeng Gao, Wenxuan Wang, Jianlong Kang, Guanghui Zhao, Delong Li, Wen Chen, Han Zhang
Summary: The Berlin green framework shows high potential for ammonia detection, with the BG/Ti3CN mixture displaying high selectivity and satisfying response/recovery speed at room temperature.
NANO-MICRO LETTERS
(2021)
Article
Chemistry, Analytical
Wei Yang, Baijun Fang, Xiao Xiao, Hu Meng, Shantang Liu
Summary: A hierarchical one-dimensional heterostructure of alpha-MoO3 nanorods and NiO nano sheets was successfully synthesized for efficient detection of ethyl acetate in evaluating fruit freshness. The structure exhibited high response, impressive selectivity, and low detection limit, and the possible intermediates in the sensing event were revealed.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Review
Chemistry, Multidisciplinary
Shenlong Zhao, Yongchao Yang, Zhiyong Tang
Summary: Studying the structure-activity correlations of electrocatalysts is crucial for improving the conversion of electrical to chemical energy. Recent evidence obtained through operando characterization techniques shows that the structural evolution of catalysts, caused by their interaction with electric fields, electrolytes, and reactants/intermediates, leads to the formation of real active sites. It is therefore important to summarize the research advances in structural evolution and envision future developments. In this Minireview, the fundamental concepts associated with structural evolution, the triggers of this evolution, and advanced operando characterizations are discussed. The reversibility of structural evolution in heterogeneous electrocatalysis, with a focus on the oxygen evolution and CO2 reduction reactions, is also highlighted. Finally, the key challenges and opportunities in this exciting field are presented.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Boyang Wang, Haoqiang Song, Zhiyong Tang, Bai Yang, Siyu Lu
Summary: Carbon dots (CDs) have been synthesized using ethanol as a carbon source, composed of blue-, cyan-, and yellow-emitting CDs which fluoresce at corresponding wavelengths. The red-shift in emission peaks is attributed to increased carbonization in polymer structure, leading to different surface states. Theoretically verified results have successfully been used in developing multi-color and white light-emitting diodes (LEDs).
Review
Chemistry, Multidisciplinary
Jiawei Lv, Xiaoqing Gao, Bing Han, Yanfei Zhu, Ke Hou, Zhiyong Tang
Summary: Controlled assembly of inorganic nanoparticles into higher-order structures with collective functionalities, particularly chiral superstructures, has attracted significant attention due to their unique chiroptical properties and potential applications. Various strategies have been developed to prepare self-assembled inorganic chiral superstructures based on the preference of building blocks and external factors. Compared to organic counterparts, these inorganic chiral superstructures exhibit superior optical activity.
NATURE REVIEWS CHEMISTRY
(2022)
Editorial Material
Chemistry, Multidisciplinary
Zhiyong Tang, Jin Zhang, Yue Zhang
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xuekang Yang, Jiawei Lv, Jing Zhang, Tianxi Shen, Tingyang Xing, Fenglian Qi, Shaohua Ma, Xiaoqing Gao, Wei Zhang, Zhiyong Tang
Summary: This paper describes a new approach to obtain intense and tunable circularly polarized luminescence (CPL) by doping semiconductor quantum dots into inorganic chiral photonic crystals (CPCs). The sign, position, and intensity of CPL peaks can be precisely controlled by manipulating the photonic band gap of CPCs or the luminescence wavelength of quantum dots.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Wang Wenyang, Liu Hanlin, Yang Caoyu, Fan Ting, Cui Chengqian, Lu Xiaoquan, Tang Zhiyong, Li Guodong
Summary: We demonstrate the regulation of Lewis acid sites through coordinating zirconium nodes in metal-organic frameworks with monocarboxylate modulators. The use of electron-withdrawing TFA as the modulator leads to significantly enhanced catalytic performance in the ring-opening reaction of epoxides with alcohols, thanks to the stronger Lewis acidity and more active zirconium sites induced by TFA.
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
(2022)
Article
Engineering, Chemical
Cuijing Liu, Junjun Hou, Jinlei Yang, Munan Fang, Zhiyong Tang, Lianshan Li, Haftu Gebrekiros Alemayehu
Summary: A composite membrane integrating highly porous 2D Al-MOF nanosheets into graphene oxide (GO) membrane is proposed, which enhances membrane stability and solvent permeability. The composite membrane exhibits high separation performance and structural stability, maintaining consistency over a long period of time.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Hongdong Li, Hongyan Liu, Fei Wang, Guodong Li, Xiaoli Wang, Zhiyong Tang
Summary: This work demonstrates a facile synthesis of Au-modified ZnO@TiO2 core-shell nanorods array as a photoelectrode for PEC water splitting, achieving high catalytic efficiency. Electric-field simulation and transient absorption spectroscopy reveal that the Au-decorated core-shell nanostructures have enhanced hot electron generation and inhibition of carrier recombination.
Article
Nanoscience & Nanotechnology
Jinlei Yang, Bin Tu, Guangjie Zhang, Pengchao Liu, Kui Hu, Jiarong Wang, Zhuang Yan, Zhiwei Huang, Munan Fang, Junjun Hou, Qiaojun Fang, Xiaohui Qiu, Lianshan Li, Zhiyong Tang
Summary: Osmotic power, or 'blue energy', is a vast and sustainable energy source produced by mixing solutions of different salt concentrations. This study demonstrates the potential application of covalent organic framework monolayer membranes with well-ordered pore arrangement in osmotic power generation, achieving low membrane resistance and high ion conductivity.
NATURE NANOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Xuanye Leng, Kaiwei Wan, Hui Wang, Guangbao Wu, Xuning Zhang, Yong Liu, Bing Han, Boxin Wang, Yuan Zhang, Huiqiong Zhou, Zhiyong Tang
Summary: This study explores the use of adenosine triphosphate (ATP) as a universal bio-energy carrier for interfacial modification in perovskite solar cells. The ATP modified hole transport layer (HTL) improved the band alignment and crystal quality at the HTL/perovskite interface, leading to enhanced charge carrier recombination and extraction. The ATP modified device showed improved stability and achieved a high power conversion efficiency (PCE) of 20.15%.
Article
Chemistry, Multidisciplinary
Yin Zhang, Jun Guo, Jiangwei Zhang, Xueying Qiu, Xiaofei Zhang, Jianyu Han, Binhao Zhang, Chang Long, Yanan Shi, Zhongjie Yang, Wenshi Zhao, Zhiyong Tang
Summary: This study presents a versatile and efficient asymmetric cross-coupling reaction between carbonyl radicals and aryl radicals using porous chiral metal-organic frameworks as catalysts under light illumination. The catalysts demonstrate good performance in catalyzing various reactions, including beta- and alpha-carbonyl arylation of saturated aldehydes and ketones. This work opens up new possibilities for the rational design of heterogeneous catalysts for precise synthesis.
Article
Materials Science, Multidisciplinary
Jialin Cai, Jianye Yang, Xin Xie, Jie Ding, Leyan Liu, Wanyu Tian, Yushan Liu, Zhiyong Tang, Baozhong Liu, Siyu Lu
Summary: This study reports a cross-linked porous carbon-doped MoO2 (C-MoO2)-based catalyst for electrochemical hydrogen evolution reaction (HER). The presence of carbon atoms in C-MoO2 adjusts its electronic structure, and the loaded small Ru nanoparticles provide fast water dissociation rate and moderate H adsorption strength. The Ru/C-MoO2 catalyst exhibits low overpotential and excellent stability in a pH-universal environment.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jinlei Yang, Bin Tu, Munan Fang, Lianshan Li, Zhiyong Tang
Summary: This Perspective discusses the strong interactions between adjacent pores in an ordered nanopore array of covalent organic framework-based monolayers, highlighting their impact on ion transport and showcasing the exciting features of porous nanostructures.
Article
Chemistry, Physical
Leta Takele Menisa, Ping Cheng, Xueying Qiu, Yonglong Zheng, Xuewei Huang, Yan Gao, Zhiyong Tang
Summary: This study successfully synthesized a single Fe-N-x site adjacent to graphitic nitrogen for CO2 reduction reaction, achieving high efficiency and stability through increasing the neighboring graphitic nitrogen.
NANOSCALE HORIZONS
(2022)
Review
Materials Science, Multidisciplinary
Yadong Zhang, Shu Yu, Bing Han, Yunlong Zhou, Xiuwen Zhang, Xiaoqing Gao, Zhiyong Tang
Summary: Due to their magnetic photophysical properties, circularly polarized luminescence (CPL) materials have attracted significant interest. This review provides a comprehensive overview of this field, including theory, experiments, and categorization of CPL-active materials. It also discusses the factors influencing the dissymmetry factor and luminescence efficiency, as well as the opportunities and challenges for enhancing both factors.
