Article
Chemistry, Analytical
Yiqing Chen, Yuxin Li, Bingxi Feng, Yue Wu, Yongheng Zhu, Jing Wei
Summary: A new gas sensor based on mesoporous Au-ZnO nanospheres was developed for the detection of seafood quality. The sensor showed higher response and shorter response time compared to traditional methods, and demonstrated better selectivity and sensitivity for detecting TMA.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Nanoscience & Nanotechnology
Przemyslaw Pula, Arkadiusz A. Leniart, Julia Krol, Maciej T. Gorzkowski, Mihai C. Suster, Piotr Wrobel, Adam Lewera, Pawel W. Majewski
Summary: This article reports an economical, time-efficient, and easily scalable method of fabricating transition metal oxide nanowires using simultaneous block copolymer self-assembly and selective sequestration of metal-organic acetylacetonate complexes. The mechanism and primary factors responsible for the sequestration and conformal replication of the polymer template by the inorganic material are discussed. Additionally, the developed fabrication scheme is demonstrated to be capable of patterning multilayered nanomesh and constructing a prototype volatile organic compound sensor.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Energy & Fuels
Nilesh Mohan Khalse, Mahuya De
Summary: This study investigated the effect of nitrogen doping on the adsorptive removal of sulfur compounds from model fuel. Nitrogen doping improved the surface area and pore volume of templated carbon, thereby enhancing the adsorption capacity of sulfur compounds. The adsorption-regeneration cycles showed that the removal efficiency was only lowered by 4-10% after five cycles.
Article
Materials Science, Multidisciplinary
John Bentley, Bishnu Prasad Bastakoti
Summary: Mesoporous WO3/carbon composites were synthesized using a polymeric template. The composites exhibited excellent electrochemical performance with high capacitance and retention in sulfuric acid solution.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Wuzhengzhi Zhang, Nannan Zhu, Lianchun Ding, Yan Hu, Zhengcui Wu
Summary: Researchers have developed Ag NPs/CuO MNSs heterostructure with optimized catalytic activity and selectivity for CO2ER to CO. The optimal catalyst Ag-1.01%/CuO exhibits high catalytic efficiency and stability at -0.7 V.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Jinping Wang, Jingyu Sun, Rahul L. Khade, Tsengming Chou, Hailong An, Yong Zhang, Hongjun Wang
Summary: A green and facile synthesis strategy using biocompatible liposomes as templates to mediate the formation of mesoporous metallic nanostructures in a controllable fashion is reported. Various monodispersed nanostructures with well-defined mesoporous shape and large mesopores (≥40 nm) are successfully synthesized from noble metals including Au, Pd, Pt, AuPd, AuPt, AuRh, PtRh, PdPt, AuPdRh, AuPtRh, and AuPdPt. The possible mechanism of liposome-guided formation of such nanostructures and the potential applications in photothermal effect, catalytic activities, and drug loading capacity are also revealed.
Review
Chemistry, Multidisciplinary
Zhenyu Shi, Yiyao Ge, Qinbai Yun, Hua Zhang
Summary: This article provides a comprehensive overview of the research progress and applications of 2D nanomaterial-templated composites. The ultrathin thickness, large specific surface area, and versatile properties of 2D nanomaterials make them ideal templates for constructing composites with desired structures and properties. The templated synthesis method allows for the efficient preparation of composites with high controllability. This article focuses on graphene, 2D TMDs, and 2D metals as templates for different types of nanomaterial-templated composites, and demonstrates their potential applications in electrocatalysis, electronic devices, batteries, and other fields.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Jiangyang Liu, Kazuki Nagashima, Yuki Nagamatsu, Takuro Hosomi, Hikaru Saito, Chen Wang, Wataru Mizukami, Guozhu Zhang, Benjarong Samransuksamer, Tsunaki Takahashi, Masaki Kanai, Takao Yasui, Yoshinobu Baba, Takeshi Yanagida
Summary: The surface cation composition of nanoscale metal oxides plays a critical role in determining the properties of various chemical processes, such as catalysts and molecular sensors. This study focused on the modulation of cation composition on the surface of ZnO/(Cu1-xZnx)O heterostructured nanowires and found that an increase in surface copper content suppresses the adsorption of nonanal and the aldol condensation reaction. Spectroscopic analysis and theoretical simulations revealed that surface Cu2+ sites were inactive, explaining the observed weak molecular adsorption behaviors and suppressed reactions. This tailored cation composition surface also showed improvements in electrical molecular sensing of nonanal.
Article
Chemistry, Multidisciplinary
Min Liu, Zachary M. M. Hudson
Summary: The first synthesis of hierarchical porous metal-organic frameworks (HP-MOFs) is achieved through the self-assembly of polystyrene-block-poly(ethylene oxide) (PS-b-PEO) and MOF building blocks induced by solvent evaporation. The use of PS-b-PEO as a template allows for the formation of confined spaces that lead to the creation of mesopores and/or macropores after the removal of PS-b-PEO. This approach overcomes phase separation and competitive interactions, and can produce both amorphous and crystalline HP-MOFs. Furthermore, HP-MOFs with honeycomb-like channels exhibit enhanced incorporation of large guest molecules compared to microporous MOFs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Analytical
Elena Lopez-Aymerich, Guillem Domenech-Gil, Mauricio Moreno, Paolo Pellegrino, Albert Romano-Rodriguez
Summary: Active research in nanostructured materials is aimed at improving electronic device characteristics, particularly in the field of gas sensors. Mixing different metal oxides on the same nanowire can broaden the response of gas sensors, resulting in improved performance without compromising miniaturization. This study focuses on the synthesis, characterization, and gas sensing performance of (GaxIn1-x)(2)O-3 nanowires, demonstrating promising results for the development of portable devices.
Article
Energy & Fuels
Neetesh Kumar, Hock Beng Lee, Barkha Tyagi, Manoj Mayaji Ovhal, Sinyoung Cho, Jong-Soo Lee, Jin-Woo Oh, Jae-Wook Kang
Summary: In recent years, researchers have used spray deposition technology to fabricate tin oxide electron transport layer (ETL) for perovskite solar cells (PSC). However, the power conversion efficiency (PCE) of spray-deposited SnO2 ETL is lower than that of spin-coated SnO2 ETL. This study demonstrates the combined use of spray deposition and genetically engineered M13 bacteriophages to deposit M13-SnO2 biohybrid ETL over large-area substrates, resulting in improved PCE of approximately 22.1% and enhanced stability of the PSCs.
Article
Chemistry, Physical
Muhammad Usman, Muhammad Tayyab Ahsan, Sofia Javed, Zeeshan Ali, Yiqiang Zhan, Irfan Ahmed, Sajid Butt, Mohammad Islam, Asif Mahmood, M. Aftab Akram
Summary: In this work, mesoporous nanowires with a composition of iron-nickel-cobalt ternary oxide were synthesized and investigated as electrode materials for supercapacitors. The nanowires showed higher specific capacitance and energy density, as well as good cyclic charge/discharge stability. Additionally, an asymmetric device fabricated with these nanowires and graphene exhibited high energy density, power density, and excellent capacitance retention.
JOURNAL OF MATERIOMICS
(2022)
Article
Environmental Sciences
Yucong Zhang, Xuebo Luo, Lijie Ma, Linxin Feng, Yangchen Wu, Binbin Qin, Xiujie Ji, Chao Liu
Summary: Zinc oxide has efficient redox capacity in the UV spectral region but its high bandwidth limits its application in the visible region. This study successfully synthesized microporous/mesoporous zinc oxide with a multi-level structure using anhydrous ethanol as a green templating agent. The synthesized zinc oxide not only overcame the limitation of responding only in the UV region but also showed high photocatalytic degradation efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Devaraj Manoj, Saravanan Rajendran, F. Gracia, Sabah Ansar, Madhappan Santhamoorthy, Matias Soto-Moscoso, M. A. Gracia-Pinilla
Summary: The capacity to generate a constant signal response from an enzyme on an electrode surface has been a fascinating topic of research for the past three decades. The immobilization of dual enzymes on the electrode surface using mesoporous materials allows for high loading of enzymes and provides a protective environment, resulting in long-term stability. The utilization of a redox mediator in second-generation biosensing of hydrogen peroxide improves the selectivity and sensitivity of the sensor.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Applied
Hojeong Lee, Chinh Nguyen-Huy, Eun Jeong Jang, Jihyeon Lee, Euiseob Yang, Man Sig Lee, Ja Hun Kwak, Kwangjin An
Summary: The study shows that different types of mesoporous oxide supports have a significant impact on Pd dispersion and the redox behavior of Pd, thus influencing the product selectivity in catalytic furfural hydrogenation. Among the catalysts tested, Pd/Co3O4 exhibits the highest furfural conversion and selectivity towards 2-methylfuran.
