Article
Chemistry, Physical
Jinling Cai, Yu Wang, Jie Liu, Xinzhi Zhang, Fengmei Li
Summary: This study uses NaOH/urea and electrohydrolysis pretreatment to enhance the disruption of rice straw and the production of biofuels and chemicals. The pretreatment methods effectively disrupt the lignin structure and increase the cellulose crystallinity of rice straw. The hydrolysis of the pretreated rice straw produces a higher amount of reducing sugars and an increased yield of hydrogen.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Analytical
Dionisio Del Orbe, Hyunwoo Yang, Incheol Cho, Jaeho Park, Jungrak Choi, Sang Woo Han, Inkyu Park
Summary: The thermocatalytic hydrogen gas sensor fabricated using electrodeposition of pseudo-porous networks of Pt crystals shows high sensitivity and selectivity, with low power consumption and fast response speed, making it suitable for industrial and personalized applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
Haili Huang, Zhentao Du, Hung-Chun Wu, Fengmei Gao, Lan Jiang, Huilin Hou, Shanliang Chen, Weijun Li, Feng Hu, Weiyou Yang, Dongdong Zhang, Lin Wang
Summary: In this study, a high-temperature resistant ethanol sensor based on rationally designed heterojunctions is constructed, exhibiting significantly improved performance in sensing ethanol at 465 degrees C. The sensor demonstrates high response, fast detection, and excellent selectivity, suggesting promising applications for stable sensors operating under harsh working conditions.
APPLIED SURFACE SCIENCE
(2024)
Article
Engineering, Electrical & Electronic
Xixi Zhang, Weiwei Wang, Dongzhi Zhang, Qian Mi, Sujing Yu
Summary: A self-powered ethanol gas sensor based on Ag/ZnO nanowire arrays prepared by a two-step hydrothermal method is reported, which can detect various concentrations of ethanol gas at room temperature, with piezoelectric output voltage decreasing as concentration increases. The addition of Ag greatly enhances the piezoelectric output capability of the sensor and plays a catalytic role, while forming a Schottky barrier with ZnO to affect gas sensing performance and reaction rate.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Caichi Liu, Yongchuan Hu, Fang Liu, Hui Liu, Xuewen Xu, Yanming Xue, Jun Zhang, Ying Li, Chengchun Tang
Summary: In this study, tin-doped CoSe2 nanowire arrays grown on carbon cloth were successfully constructed to enhance the hydrogen evolution reaction (HER) performance in alkaline media. The Sn doping significantly decreased the over potential of the HER reaction and improved the long-term durability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Analytical
Muhammad Hilal, Wanfeng Xie, Woochul Yang
Summary: A 3D straw-sheaf-like cobalt oxide was prepared without the assistance of template or surfactant using hydrothermal method and inert gas calcination. The material exhibited high crystallinity, large surface area, small pore size, and excellent electrochemical stability, making it suitable for non-enzymatic glucose oxidizing electrodes.
Article
Chemistry, Physical
Rishu Chaujar, Mekonnen Getnet Yirak
Summary: In this study, a junctionless gate all around silicon nanowire field-effect transistor (JL-GAA-SiNWFET) sensor was used to detect hydrogen gas (H-2). The sensor showed satisfactory characteristics for safety in handling hydrogen and selectivity in monitoring H-2 among other gases. The shifts in threshold voltage (V-th), Ion, and Ioff due to changes in the palladium (Pd) gate work function make it a sensitive parameter for detecting H-2 gas molecules. The results revealed that JL-GAA-SiNWFET-based sensors had improved sensitivity compared to GAA-MOSFET and MOSFET.
Article
Engineering, Environmental
Zihao Yang, Xin Li, Xiao He, Yangsheng Liu
Summary: This study investigated the recovery of soluble silicon and potassium in rice straw residues after thermal conversion, analyzing factors influencing recovery and proposing improvements to generate residues with higher levels of Si and K.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Biotechnology & Applied Microbiology
Raj Morya, Fanirintsoa Herivonona Andrianantenaina, Saurabh Singh, Ashutosh Kumar Pandey, Gi-Beom Kim, Jay Prakash Verma, Gopalakrishnan Kumar, Tirath Raj, Sang-Hyoun Kim
Summary: Due to the high demand for rice as a main food crop, the disposal of rice straw becomes a significant waste management issue in rice-producing countries. Open burning is the most common method but it causes environmental problems. However, utilizing rice straw as a raw material for valuable products can be advantageous. This review highlights the use of rice straw as a crucial source of clean energy.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Environmental Sciences
Guangyin Chen, Hainan Cao, Yaling Tang, Keye Ni, Jing Wang, Pei Wu
Summary: To improve the biogas yield of rice straw, an innovative cascade utilization process named FSD was proposed, which involves first digestion, NaOH treatment, and second digestion. Lab-scale batch experiments were conducted to study the effect of first digestion time on biogas production and lignocellulose structure destruction. Results showed that the FSD-15 process yielded the highest biogas production and had significant effects on the composition and structure of rice straw. Therefore, FSD-15 is recommended for cascade utilization of rice straw in biogas production.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Daria I. Markina, Sergey S. Anoshkin, Mikhail A. Masharin, Soslan A. Khubezhov, Ivan Tzibizov, Dmitriy Dolgintsev, Ivan N. Terterov, Sergey V. Makarov, Anatoly P. Pushkarev
Summary: Detection of hazardous volatile organic and inorganic species, such as hydrogen halides (HX, X = Cl, Br, I), is crucial in ensuring human safety in the chemical industry. In this study, a cost-effective and highly sensitive detector was developed for optical detection of hydrogen chloride gas using solution-processed halide perovskite nanowire lasers. An anion exchange reaction between CsPbBr3 nanowires and vaporized HCl molecules led to the formation of a structure with a bromide core and a thin mixed-halide CsPb(Cl,Br)3 shell, which resulted in an increase in laser frequency. The optical response allowed for the detection of HCl molecules in the range of 5-500 ppm.
Article
Materials Science, Multidisciplinary
Patricia G. Lopez-Cardenas, Emmanuel Alcala, Juan Diego Sanchez-Torres, Elsie Araujo
Summary: In this paper, a data-driven approach using response surface methodology (RSM) is introduced for optimizing the design of highly sensitive hydrogen peroxide (H2O2) sensors based on self-supported nickel nanowire (Ni NW) arrays. The goal is to enhance sensor performance by customizing the length of Ni NW and optimizing the working conditions. The optimized sensor achieves a significant improvement compared to previous nanostructured sensors and standard planar sensors, highlighting the potential of RSM as a powerful tool for optimizing nanostructured sensors and accelerating the design-build-test cycle. The optimized H2O2 sensor can be applied in various fields, including the food industry, medical diagnostics, and environmental monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Shen Wang, Hongbo Xu, Tingting Hao, Miao Xu, Junying Xue, Jiupeng Zhao, Yao Li
Summary: This study presents a biomimetic electrode structure that demonstrates high areal specific capacitance and optical-electrochemical performance under high optical modulation, as well as outstanding cycling stability. The biomimetic electrode has been successfully applied in electrochromic-supercapacitor devices for practical use.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Analytical
Dongzhi Zhang, Qian Mi, Dongyue Wang, Tingting Li
Summary: A self-powered high-performance gas sensor based on MXene/Co3O4 composite driven by ZnO/MXene nanowire arrays piezoelectric nanogenerator at room temperature was reported, showing significant response to formaldehyde concentration. The sensor has potential application value for detecting formaldehyde, and the piezoelectric output voltage can drive the sensor effectively.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Guillem Domenech-Gil, Jordi Sama, Cristian Fabrega, Isabel Gracia, Carles Cane, Sven Barth, Albert Romano-Rodriguez
Summary: We present a methodology for localized growth of nanowires on micro-hotplates that allows independent adjustment of the device's resistance and gas response. Fabrication of nanowire-containing stripes with or without gaps enables nanowires to bridge current, and we demonstrate this approach with SnO2 nanowire-based chemoresistors. The results show the capability of tailoring nanowire stripe sizes and empty areas along the sensing material, resulting in up to 500 times response increase. The absence of nucleation seeds in the gap areas restricts current flow along the nanowire bridges, enhancing surface conduction controlled by nanowire-gas interaction.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
