Article
Energy & Fuels
Xiao Qian, Seunghun Jung
Summary: Thermochemical methods are advantageous for large-scale hydrogen production, with the sulfuric acid decomposition in the sulfur-iodine cycle being a highly endothermic reaction. The study proposes an integrated thermo-chemical reactor combined with SOFC, using a computational approach for analysis.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Chemical
Binshen Wang, Zhi Wang, Yunhe Jin, Kangcai Wang
Summary: Novel difunctional promoters are designed to achieve hypergolic ignition of anion-free ionic liquids with high test peroxide. These promoters show good solubility and high thermostability, ensuring smooth ignition and improving density specific impulses of the composite fuels.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Metallurgy & Metallurgical Engineering
Jere Partinen, Petteri Halli, Sampsa Helin, Benjamin P. Wilson, Mari Lundstrom
Summary: In this study, a new waste battery leaching system was introduced, which utilizes elemental copper as both reductant and catalyst. By adding chloride ions, Cu+ species are stabilized as complexes, facilitating their use as catalysts for electron transfer. Under mild conditions, Co and Li dissolutions of over 90% were achieved, avoiding the use of high temperatures and concentrated acids commonly used in battery recycling studies.
Article
Environmental Sciences
Dongqin He, Dongli Wang, Hongwei Luo, Yifeng Zeng, Ganning Zeng, Jun Li, Xiangliang Pan
Summary: The slow cycling efficiency of reducing Fe3+ to Fe2+ is the main factor limiting the decomposition of H2O2 in the Fe3+/H2O2 reaction. The addition of tungsten disulfide (WS2) as a co-catalyst greatly enhances the reaction rate-limiting step and H2O2 decomposition, leading to effective degradation of acetaminophen (APAP). WS2 promotes the conversion of Fe3+ to Fe2+ mainly on its surface through redox reactions with exposed W4+ active sites and proton-bound unsaturated S atoms. This study provides a new perspective for improving the efficiency of Fe3+/H2O2 and highlights the involvement of transition metal sulfides in advanced oxidation processes (AOPs).
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Physical
Rami Zegadi, Abdelouahab Zegadi, Chemseddine Zebiri, Said Mosbah, Samira Mekki, Mohamed Lamine Bouknia, Hanane Bendjedi
Summary: In this study, an enhanced two-dimensional photonic crystal-based chemical sensor has been simulated to detect the concentrations of sulfuric acid and hydrogen peroxide. The proposed sensor shows promising results with high sensitivity and detection performance, indicating its strong potential for various applications.
Article
Thermodynamics
Yu-Jung Lin, Zih-Syuan Lin, Yih-Wen Wang
Summary: Cu etchants are commonly used in etching processes for manufacturing electric products due to their high efficiency and low cost. However, they pose a higher risk of thermal explosion compared to other etchant solutions, as demonstrated by a study analyzing the exothermic reaction of Cu etchants and evaluating reaction kinetics and safety measures.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Chemistry, Multidisciplinary
Lele Cui, Bin Chen, Longshun Zhang, Chen He, Chen Shu, Hongyu Kang, Jian Qiu, Wenheng Jing, Kostya (Ken) Ostrikov, Zhenghua Zhang
Summary: This study demonstrates an anti-electrowetting carbon film electrode with self-sustained aeration, which is assembled using structurally discontinuously fractured conventional electrocatalyst films. It achieves highly selective and durable electrochemical two-electron oxygen reduction, providing a promising direction for developing cheap and scalable metal-free electrodes for industry-scale H2O2 electrosynthesis.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Engineering, Chemical
Chih-Hsien Lin, Wei-Hsiang Chen
Summary: Filtration using different solutions led to varying impacts on the surface characteristics and permeation fluxes of GO-Fe membranes. Water and H2SO4 filtration demonstrated the highest and lowest fluxes, respectively, with water increasing membrane hydration and flux while H2SO4 led to membrane destruction by enhancing Fe release.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Xin Wang, Qi Ding, Ying Tian, Wei Wu, Feida Che, Ping Li, Wen Zhang, Wei Zhang, Bo Tang
Summary: This study developed two fluorescent probes to monitor H2O2 in mitochondria and lysosomes. The findings from fluorescence imaging demonstrated that mitochondrial H2O2 is involved in reduced GCase activity in lysosomes in depressed mice, providing a valuable tool for understanding the pathogenesis of depression.
CHEMICAL COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Qiwei Hu, Rama D. Yammani, Heather Brown-Harding, David R. Soto-Pantoja, Leslie B. Poole, John C. Lukesh
Summary: Doxorubicin (DOX) is a highly effective anticancer agent, but its dose-dependent cardiotoxicity limits its long-term use. This study describes a novel H2O2-responsive DOX hybrid codrug that releases hydrogen sulfide (H2S) to maintain the antitumor effects of DOX while reducing cardiotoxic side effects.
Article
Chemistry, Physical
Zhiqin Deng, Chaoqun Ma, Shihai Yan, Jie Liang, Kai Dong, Tingshuai Li, Yan Wang, Luchao Yue, Yonglan Luo, Qian Liu, Yang Liu, Shuyan Gao, Juan Du, Xuping Sun
Summary: Mo doping is proposed to boost the 2e(-) ORR of TiO2 nanocrystallines, achieving a high Faradaic efficiency and large H2O2 yield. The catalytic mechanism is further revealed through density functional theory calculations.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Lipeng Zhai, Zhipeng Xie, Cheng-Xing Cui, Xiubei Yang, Qing Xu, Xiating Ke, Minghao Liu, Ling-Bo Qu, Xiong Chen, Liwei Mi
Summary: Covalent organic frameworks (COFs) are a suitable template for photocatalytic H2O2 synthesis due to their tunable chemical structures and semiconductor properties. However, the photoactivity of COFs is still suboptimal due to inefficient charge generation, fast recombination of photogenerated charges, and limited electron transport. In this study, triazine and acetylene units were integrated into COFs, leading to efficient charge separation, suppressed charge recombination, and enhanced electron transport. Experimental and computational results demonstrated that triazine and acetylene units synergistically promoted H2O2 synthesis through a two-electron pathway.
CHEMISTRY OF MATERIALS
(2022)
Article
Cell Biology
Bjoern Klabunde, Andre Wesener, Wilhelm Bertrams, Stephan Ringshandl, Luke D. Halder, Evelyn Vollmeister, Bernd Schmeck, Birke J. Benedikter
Summary: Streptococcus pneumoniae infection disrupts the Golgi apparatus through H2O2 production, inhibiting anti-infective mechanisms and promoting bacterial attachment and replication.
CELL COMMUNICATION AND SIGNALING
(2023)
Article
Multidisciplinary Sciences
Gilberto C. Padron, Alexander M. Shuppara, Anuradha Sharma, Matthias D. Koch, Jessica-Jae S. Palalay, Jana N. Radin, Thomas E. Kehl-Fie, James A. Imlay, Joseph E. Sanfilippo
Summary: In this study, the researchers discovered that the interplay between fluid flow shear rate and chemical stress triggers a transcriptional response in Pseudomonas aeruginosa. They found that high shear rates in microfluidic conditions replenish hydrogen peroxide (H2O2), creating a stress response. Mathematical simulations and biophysical experiments showed that flow sensitizes cells to H2O2 concentrations much lower than traditionally studied. The findings explain the difference in H2O2 levels between experimental and host environments, and suggest that flow can sensitize bacteria to chemical stress in natural environments.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Multidisciplinary
Jiawei Zhao, Xiaotong Zhang, Jiajia Xu, Wei Tang, Zhong Lin Wang, Feng Ru Fan
Summary: Researchers have discovered a new method to synthesize hydrogen peroxide (H2O2) by contact charging a two-phase interface, yielding stable and high production of H2O2 under room temperature and normal pressure. This finding provides an efficient way for H2O2 preparation and may encourage further exploration of contact-electrification-induced chemistry processes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Thermodynamics
Duo Zhang, Weifeng Wang, Jun Deng, Hu Wen, Xiaowei Zhai, Chi-Min Shu
Summary: This study further investigated the mechanism of a precision grading warning method for coal seams susceptible to spontaneous combustion. Thermogravimetric analysis was conducted on three different metamorphic grades of Jurassic coal. The variations in the TG/DTG curves were compared to determine the kinetic model and kinetic compensation effect. The results showed similar trends in the TG and DTG curves for the three coal samples at different heating rates. The most probable mechanism function and significant kinetic compensation effect were identified in the low-temperature coal oxidation stage. Despite the difference in metamorphic grade, the reaction process and rate-determining step were the same for all three samples.
COMBUSTION SCIENCE AND TECHNOLOGY
(2022)
Article
Thermodynamics
Caiping Wang, Yanan Hou, Zujin Bai, Jun Deng, Chi-Min Shu
Summary: Thermokinetics and gaseous products of Jurassic coals from northern Shaanxi, China were studied at four different heating rates using thermogravimetry-Fourier transform infrared spectroscopy experiments. The results indicated a significant spontaneous combustion tendency in the coal samples with increasing heating rates. The rates of CO and CO2 formation increased rapidly during gas desorption, while gaseous water production also showed an upward trend.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
Yang Xiao, Hong-Mei Zhang, Lan Yin, Chi-Min Shu, Qing-Wei Li
Summary: Coal-based activated carbon is prone to spontaneous combustion during storage and transportation. This study investigated the oxidation process and mechanism of different samples. The results showed that activated carbon has a developed pore structure and hydroxyl groups, which play a key role in spontaneous combustion.
COMBUSTION SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
Ye-Cheng Liu, An-Chi Huang, Yan Tang, Xiao-Ming Ma, Ya-Ping Yang, Zhi-Hao Wu, Chi-Min Shu, Zhi-Xiang Xing, Jun-Cheng Jiang
Summary: In this study, the synthesis of 2,4,6-trinitrophenol from phenol was improved in terms of yield by adjusting the temperature range and using various analytical techniques to confirm the effectiveness of the synthesis process. Thermal stability of the synthesized product was investigated and a kinetic model was established.
JOURNAL OF ENERGETIC MATERIALS
(2023)
Article
Engineering, Chemical
Hai-Lin Zhou, Jun-Cheng Jiang, An-Chi Huang, Yan Tang, Yang Zhang, Chung-Fu Huang, Shang-Hao Liu, Chi-Min Shu
Summary: This study investigated the thermal stability of DMPAT, an essential pesticide intermediate, and found that its thermal stability is influenced by atmospheric conditions, heating rate, and stirring conditions. The researchers determined thermal safety parameters using various thermokinetic methods and developed a reaction model for DMPAT. These findings offer valuable insights for ensuring the safety of DMPAT processing, use, storage, and transportation to prevent thermal decomposition accidents.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2022)
Article
Chemistry, Physical
Venkata Subbaiah Munagapati, Hsin-Yu Wen, Anjani R. K. Gollakota, Jet-Chau Wen, Chi-Min Shu, Kun-Yi Andrew Lin, Zhong Tian, Jhy-Horng Wen, Guda Mallikarjuna Reddy, Grigory Zyryanov
Summary: Magnetic Fe3O4 loaded papaya seed powder (Fe3O4-PSP) was synthesized and utilized as a biosorbent to remove Congo Red (CR) from liquid phase. Batch tests were conducted to evaluate the impact of various adsorption factors, showing that Fe3O4-PSP has potential for removing CR dye from contaminated water.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Energy & Fuels
Meysam Nourani, Najeh Alali, Saeed Samadianfard, Shahab S. Band, Kwok-wing Chau, Chi-Min Shu
Summary: This study presents a new technology for fast and reliable prediction of porosity in chalk samples using machine learning methods and X-ray fluorescence elemental analysis. Intelligent models trained and tested on different samples show that the combination of genetic algorithm-integrated random forest method with XRF elemental analysis provides an accurate model.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Environmental
Wen-He Wang, Yan Huang, Shao-Yu Hu, Wei Su, Yong Pan, Chi-Min Shu
Summary: The study investigated the effect of hexanoic acid on the thermal decomposition of BPO, revealing that hexanoic acid increased the thermal hazard of BPO. Additionally, various kinetic models and decomposition mechanism function calculation methods were used to analyze the reaction process.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Thermodynamics
Rui-Lei Guo, Shang-Hao Liu, Chi-Min Shu
Summary: This study investigated the thermal behavior and evaluation of thermal hazards of two water-soluble azo initiators. The results showed that most decomposition products of the azo initiators existed in the form of organic compounds under nitrogen conditions, and precautions should be taken to prevent the leakage of pyrolysis gases to avoid environmental pollution.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Engineering, Chemical
Tung Chang, Kuang-Hua Hsueh, Cheng-Chang Liu, Chen-Rui Cao, Chi-Min Shu
Summary: This study conducted an experimental research on the thermal characteristics of harmful substances using differential scanning calorimetry (DSC) and Wolfram's Mathematica software. It derived characteristic parameters and kinetic parameters graphically, and simulated the peak curve using a Gaussian curve model.
Article
Mathematics
Naveed Ahmed Malik, Ching-Lung Chang, Naveed Ishtiaq Chaudhary, Muhammad Asif Zahoor Raja, Khalid Mehmood Cheema, Chi-Min Shu, Sultan S. Alshamrani
Summary: This study proposes a fractional order swarming optimization technique (FOPSO) for the efficient parameter estimation of harmonics in industrial loads. FOPSO effectively estimates the amplitude and phase parameters of harmonics and is robust to noise. Evaluation and analysis were conducted for different fractional orders and noise scenarios.
Article
Mathematics
Faisal Altaf, Ching-Lung Chang, Naveed Ishtiaq Chaudhary, Muhammad Asif Zahoor Raja, Khalid Mehmood Cheema, Chi-Min Shu, Ahmad H. Milyani
Summary: The study utilized evolutionary and swarm computing paradigms to address the overparameterization issue in parameter estimation for nonlinear systems. By integrating the key term separation principle and genetic algorithms, the proposed approach effectively estimated the actual parameters of Hammerstein control autoregressive systems.
Article
Geriatrics & Gerontology
Cheng-Kun Hsu, Cheng-Chang Liu, Tung Chang, Jing-Jing Liao, Chi-Min Shu
Summary: The aim of this research was to evaluate the use of smart alert bracelets by older adults diagnosed with dementia. The study found a positive correlation between the mode of wearing device, degree of dementia, and field configuration in the post-test results. Based on the experimental findings, suggestions were made to improve statistical calculations, equipment design, device charging, device selection, and notifications. The feedback from caregivers and older adults emphasized the importance of light and small design for better usability.
Article
Mathematics, Interdisciplinary Applications
Faisal Altaf, Ching-Lung Chang, Naveed Ishtiaq Chaudhary, Khalid Mehmood Cheema, Muhammad Asif Zahoor Raja, Chi-Min Shu, Ahmad H. Milyani
Summary: This study investigates a novel approach using fractional order particle swarm optimization to solve the nonlinear system identification problem, introducing a key term separation technique to address over-parameterization issue in parameter estimation, with robust performance in different noise scenarios.
FRACTAL AND FRACTIONAL
(2022)
Article
Thermodynamics
Wan-Yu Lu, Wei-Cheng Lin, An-Chi Huang, Chi-Min Shu
Summary: This study investigated the thermal stability of perfume fixatives added to lavender essential oil using a thermogravimetric analyser. Results showed that trans-cinnamic acid exhibited the highest thermal stability among the test samples. Additionally, lavender essential oil samples with ethanol had the highest mass loss derivative, indicating an increase in fragrance residence time.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
