Article
Nanoscience & Nanotechnology
Akhil Tayal, Okkyun Seo, Jaemyung Kim, Hirokazu Kobayashi, Tomokazu Yamamoto, Syo Matsumura, Hiroshi Kitagawa, Osami Sakata
Summary: This research investigates the hydrogen storage mechanism and structural transformations of Pd-Pt core-shell and solid-solution nanoparticles during hydrogen absorption and desorption processes. The addition of Pt enhances the hydrogen storage capacity, with a higher coverage of active bimetallic sites in the solid-solution phase leading to an increased observed capacity.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Oscar Ramirez, Sebastian Bonardd, Cesar Saldias, Macarena Kroff, James N. O'Shea, David Diaz Diaz, Angel Leiva
Summary: The bimetallic NiPt nanoparticles were successfully loaded into alginate hydrogel beads through in situ reduction process, and the prepared hybrid hydrogels showed excellent catalytic activity and stability for the hydrolysis of ammonia borane to produce hydrogen.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Hongming Zhang, Lu Zhang, Ismael A. Rodriguez-Perez, Wenkang Miao, Kangli Chen, Wenfeng Wang, Yuan Li, Shumin Han
Summary: A highly efficient catalyst composed of carbon nanospheres supporting ultrafine bimetallic Pt-Co nanoparticles was successfully synthesized for hydrogen evolution from NaBH4 hydrolysis in this study. The catalyst exhibited outstanding performance in kinetic and thermodynamic tests, with high hydrogen generation rate and low activation energy. The hydrolytic mechanism was investigated using isotopic tracer method and mass spectrometric analysis, showing that the catalyst maintained high catalytic activity even after five cycles of performance tests.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Applied
Tamara S. Kharlamova, Margarita V. Salina, Valery A. Svetlichnyi, Mikhail A. Salaev, Andrey I. Stadnichenko, Grigory V. Mamontov
Summary: This study focuses on the design of ceria-supported Pt-Ag bimetallic catalysts for the reduction of 4-nitrophenol. The addition of silver to platinum and the conditions used for bimetallic catalyst treatment can enhance catalyst activity. The optimal Pt:Ag ratio depends on the sample pretreatment and can impact the catalyst's activity.
Article
Chemistry, Analytical
Muhammed Bekmezci, Hudanur Ozturk, Merve Akin, Ramazan Bayat, Fatih Sen, Rozhin Darabi, Hassan Karimi-Maleh
Summary: In this study, Silver-Platinum (Pt-Ag) bimetallic nanoparticles were synthesized using a biogenic reduction method with plant extracts. The reduction method provided a novel approach to obtaining nanostructures with fewer chemicals. The Pt-Ag bimetallic nanoparticles demonstrated an ideal size of 2.31 nm as observed through Transmission Electron Microscopy. Characterization of the nanoparticles was conducted using Fourier Transform Infrared Spectroscopy, X-ray Diffractometry, and Ultraviolet-Visible spectroscopy. Electrochemical measurements using Cyclic Voltammetry and Differential Pulse Voltammetry indicated a limit of detection of 0.03 μM and a limit of quantification of 0.11 μM. The antibacterial properties of the Pt-Ag NPs were also evaluated, showing strong antibacterial effects against Escherichia coli and Staphylococcus aureus bacteria.
Article
Chemistry, Physical
Rozhin Darabi, Fadaa E. D. Alown, Aysenur Aygun, Qiang Gu, Fulya Gulbagca, Elif Esra Altuner, Hamdullah Seckin, Ismet Meydan, Gullu Kaymak, Fatih Sen, Hassan Karimi-Maleh
Summary: Platinum-based silver nanoparticles (Pt@Ag NPs) were synthesized using the green synthesis method and their catalytic effects on hydrogen production were investigated. The synthesized NPs were characterized using TEM, UV-Vis, XRD, and FTIR. The results showed that Pt@Ag NPs had an average size of 5.431 nm. The catalytic reaction for hydrogen production was accelerated as the concentrations of the substrate and catalysts increased, and hydrogen release increased. The use of Pt@Ag NPs in the hydrogen production process shows great promise for green energy studies due to its environmentally friendly, non-toxic, and low-cost nature.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Pawel Mierczynski, Magdalena Mosinska, Waldemar Maniukiewicz, Krasimir Vasilev, Malgorzata Iwona Szynkowska-Jozwik
Summary: This study compares the physicochemical and reactivity of various bimetallic Pt-Ni, Pd-Ni, Ru-Ni, and Ag-Ni catalysts in the oxy-steam reforming of LNG for hydrogen generation. The 1%Pt-5%Ni catalyst supported on CeO2·ZrO2 (1:2) system demonstrated the highest activity, showing potential for hydrogen production for solid oxide fuel cells.
Article
Chemistry, Physical
Han-Jung Ryu, Won Kyu Lee, Jong Yun Choi, Jae-Seung Lee
Summary: This study investigates the catalytic properties of Ag-M bimetallic nanoparticles and the impact of precursor-induced silver halide byproducts, finding that the catalytic properties are significantly enhanced by removing AgCl with ascorbic acid. The study provides guidance for the controlled synthesis of high purity bimetallic nanoparticles and their efficient applications in various fields.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Polina Pushankina, Mikhail Baryshev, Iliya Petriev
Summary: A controlled strategy for the synthesis of mono- and bimetallic nanoparticles with unique morphology has been developed. The investigation of surfactant concentration and current density on pH has revealed fundamental patterns of nanoparticle growth. The obtained nanoparticles exhibited high catalytic activity and stability due to their unusual morphology, and were also effective in modifying hydrogen-permeable membranes.
Article
Chemistry, Physical
Weilin Zhong, Chao Wang, Sulting Peng, Riyang Shu, Zhipeng Tian, Yanping Du, Ying Chen
Summary: Photothermal reforming of biomass-derived hydrocarbons for hydrogen production was studied using a series of photothermal catalysts. The results showed that precise regulation of the photothermal effect by controlling the metal nanoparticles loading could enhance hydrogen production by achieving proper thermal balance and high catalytic activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Yiting Bu, Lixian Sun, Fen Xu, Sheng Wei, Federico Rosei, Yumei Luo, Zhaoyu Liu, Jiaxi Liu, Chenchen Zhang, Yuan Yao
Summary: By adding Ni-Ti-NC, the hydrogen absorption capacity and dehydrogenation behavior of LiAlH4 were significantly improved, with lowered dehydrogenation temperature, reduced activation energies, and increased hydrogen release rate. The addition of Ni-Ti-NC also enhanced the hydrogen absorption capacity of LiAlH4 at high pressure and constant temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Biochemistry & Molecular Biology
Chandrashekhar Singh, Abhishesh Kumar Mehata, Vishnu Priya, Ankit Kumar Malik, Aseem Setia, M. Nikitha Lakshmi Suseela, Vikas, Patharaj Gokul, Samridhi, Sanjeev K. Singh, Madaswamy S. Muthu
Summary: Bimetallic nanoparticles have stronger antibacterial potential than their monometallic versions and can be a potential weapon against drug-resistant bacteria. Their antibacterial mechanism includes cell membrane degradation, disturbance in homeostasis, oxidative stress, and the production of reactive oxygen species. Bimetallic nanoparticles can be synthesized using bottom-up and top-down techniques.
Article
Materials Science, Multidisciplinary
Jia-Jun Qiu, Ting-Ting Yang, Yi-Fan Li, Wen-Hao Qian, Xuan-Yong Liu
Summary: Au@Ag@Pt core-shell nanorods with noble metal combination were fabricated and assembled on medical titanium surface to investigate their antibacterial activity and biocompatibility. The Pt shell layer on Ti-Au@Ag@Pt was found to slow down the Ag ion release rate, which endowed the medical titanium surface with both antibacterial activity and good biocompatibility without obvious cell toxicity. The antibacterial rates of Ti-Au@Ag@Pt against S. epidermidis and P. aeruginosa were 89.7% and 92.7%, respectively.
Article
Engineering, Chemical
Akbar Hojjati-Najafabadi, Aysenur Aygun, Rima Nour Elhouda Tiri, Fulya Gulbagca, Mohamed Islam Lounissaa, Peizhong Feng, Fatemeh Karimi, Fatih Sen
Summary: In this study, biosupported ruthenium/nickel co-doped zinc nanoparticles (btRNZn NPs) were used as a catalyst for hydrogen release from the methanolysis of sodium borohydride, and for the removal of Methyl Orange organic dye through photocatalytic activity. The btRNZn NPs showed an average size of 11.78 nm and a photodegradation effect of 68.2% against MO dye. The effects of catalyst, substrate, and temperature in the methanolysis reaction were investigated, and the reaction kinetics and energy parameters were calculated.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Jiazhu Deng, Teng Xue, Haihong Wu, Peng Wu
Summary: Cost-effective Ni-Ag bimetallic nanoparticles prepared by an aqueous-phase surfactant-aided co-reduction process showed great potential in degrading aryl halides and synthesizing important structural units.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Ali Cheri, Rachid Nebbali
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Energy & Fuels
Ali Cherif, Rachid Nebbali, Chul-Jin Lee
Summary: The study shows that implementing a partially filled reactor design can improve methane conversion and reduce catalyst weight, leading to a lower overall cost of the reactor.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Ali Cherif, Rachid Nebbali, Chul-Jin Lee
Summary: A numerical analysis was conducted to optimize the arrangement of a membrane steam methane reforming reactor, resulting in higher hydrogen yield and separation efficiency, as well as reduced cost and complexity.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Ali Cherif, Rachid Nebbali, John William Sheffield, Nimeti Doner, Fatih Sen
Summary: This study presents a numerical analysis of hydrogen production via an autothermal reforming reactor activated with patterned catalytic layers. The novel design aims to improve hydrogen yield, shorten the activated zone length, and reduce oxygen consumption. The new design results in lower costs and a more compact process.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Ali Cherif, Rachid Nebbali, Fatih Sen, John W. Sheffield, Nimeti Doner, Lyes Nasseri
Summary: This paper presents a numerical analysis of hydrogen production via autothermal steam methane reforming. A novel configuration with alternating catalytic beds was designed and compared with a conventional configuration. The results showed improved hydrogen yield, reduced highest temperature, and a potential reduction in hydrogen cost by decreasing the reactor length.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
Ali Cherif, Ju-Sung Lee, Rachid Nebbali, Chul-Jin Lee
Summary: This study focuses on the design and optimization of autothermal reforming reactor for hydrogen production. Through a novel design and optimization, the performance and thermal efficiency were significantly improved compared to the traditional model.
APPLIED THERMAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Ju-Sung Lee, Ali Cherif, Ha-Jun Yoon, Seung-Kwon Seo, Ju-Eon Bae, Ho-Jin Shin, Chulgu Lee, Hweeung Kwon, Chul-Jin Lee
Summary: This study investigates and compares the economic and environmental performance of overseas hydrogen transport. TOL-MCH and ammonia technologies are found to be the most cost-effective and environmentally friendly, with TOL-MCH technology being the most favorable in a scenario dominated by renewable energy.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Mohammadamin Zarei, Ali Cherif, Vahid Khaligh, Taeksang Yoon, Chul-Jin Lee
Summary: This paper provides a techno-economic analysis of carbon capture technologies for coal-fired power plants. Key findings include the necessity of carbon capture even in ultrasupercritical plants, the significant impact of capacity factor on levelized cost of energy, and the underestimation of costs when deterministic estimates are used.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Mohammadamin Zarei, Ali Cherif, Ha-Jun Yoon, J. Jay Liu, Chul-Jin Lee
Summary: Due to the scarcity of fossil fuels and environmental concerns, renewable energy sources have gained attention. In this study, multi-objective function optimization was used to design a sustainable biofuel supply chain based on greenhouse gas emissions and cost. The results show that the sustainable solution has a cost of $6.63 per gallon of gasoline-equivalent and emits 674.83 grams of CO2-equivalents per gallon of gasoline-equivalent.
Article
Energy & Fuels
Ali Cherif, Mohammadamin Zarei, Joo-Sung Lee, Ha -Jun Yoon, Chul-Jin Lee
Summary: This study numerically modeled and analyzed the production of hydrogen through electrically heated ammonia decomposition. A novel design with an in-situ electric heater embedded in the catalyst was proposed and compared to traditional configurations. The optimized design showed significantly improved performance in terms of ammonia conversion and hydrogen yield.
Article
Thermodynamics
Ali Cherif, Mohamed Atwair, Tesfalem Aregawi Atsbha, Mohammadamin Zarei, Ian J. Duncan, Rachid Nebbali, Fatih Sen, Chul-Jin Lee
Summary: This study comparatively investigated and optimized the M-SMR process using a Pd-based membrane with a Ni/Al2O3 catalyst. The optimal membrane distribution was determined through multiobjective Bayesian optimization, resulting in high hydrogen recovery and low CO2 emission. The optimization results showed significantly reduced CO2 selectivities and high separation ratio for WC-M-SMR and PB-M-SMR.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Environmental Sciences
Muqiu Hu, Xin Zhao, Jinghan Gu, Lulu Qian, Zhiqing Wang, Yuanyuan Nie, Xiaoyu Han, Long An, Haiqiang Jiang
Summary: Due to its simple process, environmental friendliness, and low operating costs, biometallurgy has become a popular technology for metals recovering from low-grade ores and tailings. An optimized agar was used to isolate and grow functional bacteria, resulting in the successful isolation of six functional stains. These strains were further tested for their ability to leach metals from polymetallic sulfide tailings, with significant improvements observed when the strains were mixed together. The selection of leaching process should be based on tailings composition and target metals.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Saqib Hassan, Aswin Thacharodi, Anshu Priya, R. Meenatchi, Thanushree A. Hegde, R. Thangamani, Ht Nguyen, Arivalagan Pugazhendhi
Summary: An Endocrine Disrupting Chemical (EDC) is a compound that disrupts the function of the endocrine system and is found in the environment. EDCs, such as Bisphenol A and pesticides, have been shown to have negative effects on the female reproductive system. Understanding the relationship between EDCs and women's health is crucial for developing strategies to protect reproductive health and informing public policy decisions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Lichang Zhou, Zhaoling Li, Boyi Cheng, Jinqi Jiang, Xinqi Bi, Zongping Wang, Guanghao Chen, Gang Guo
Summary: Thiosulfate can promote sulfur-mediated bacterial activity, inhibit glycogen accumulating organisms, and enhance denitrification efficiency. After the carbon source is reduced, the competitive ability of glycogen accumulating organisms increases, resulting in reduced sulfate reduction.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Claire E. Campbell, Devyn L. Cotter, Katherine L. Bottenhorn, Elisabeth Burnor, Hedyeh Ahmadi, W. James Gauderman, Carlos Cardenas-Iniguez, Daniel Hackman, Rob McConnell, Kiros Berhane, Joel Schwartz, Jiu-Chiuan Chen, Megan M. Herting
Summary: Recent studies have found a connection between air pollution and increased risk for behavioral problems during development. However, more longitudinal studies are needed to investigate how exposure during the transition to adolescence may affect emotional behaviors.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Jing-hong Liang, Ru-yu Yang, Mei-ling Liu, Ying-qi Pu, Wen-wen Bao, Yu Zhao, Li-xin Hu, Yu-shan Zhang, Shan Huang, Nan Jiang, Xue-ya Pu, Shao-yi Huang, Guang-hui Dong, Ya-jun Chen
Summary: This study examines the association between urban Green and blue spaces (GBS) exposure and Emotion and behavior problems (EBP) in youth populations. The findings suggest that higher exposure to GBS, particularly green spaces (GS) and blue spaces (BS), is associated with a decrease in the risk of developing total difficulties in young individuals. The joint effect of GS and BS may also contribute to the decrease in EBPs.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Diego Ruiz-Sobremazas, Mario Ruiz Coca, Miguel Morales-Navas, Rocio Rodulfo-Cardenas, Caridad Lopez-Granero, Maria Teresa Colomina, Cristian Perez-Fernandez, Fernando Sanchez-Santed
Summary: Air pollution is associated with a range of health issues and gestational exposure to environmental pollutants may be linked to neurodevelopmental disorders. This study investigated the effects of oral gestational exposure to particulate matter (PM) on ultrasonic vocalizations (USV). The findings suggest that this exposure may lead to social deficits and abnormal gene expression related to neurotransmitter systems. Further research is needed to better understand the effects of air pollution on neurodevelopmental disorders and the neurotransmission systems involved.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yagmur Kabakci, Sadiye Kosar, Ozgur Dogan, Fehmi Gorkem Uctug, Osman Atilla Arikan
Summary: This study investigated the effect of electrohydrolysis pretreatment on municipal solid waste. The results showed that applying electrohydrolysis pretreatment increased methane production and reduced the time required for hydrolysis, suggesting it is a promising method to improve anaerobic digestion efficiency.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Chuanwu Zhao, Yaozhong Pan, Hanyi Wu, Yu Zhu
Summary: This study analyzed the impact of industrial zones on urban heat islands using remote sensing images and a novel spectral index. The research found that the contraction or expansion of industrial zones has a significant effect on land surface temperature. The results are valuable for environmental assessment and fine management of industrial cities.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Bang Du, Zhongzhong Wang, Piet N. L. Lens, Xinmin Zhan, Guangxue Wu
Summary: This study investigated the performance, syntrophic relationships, microbial communities, and metabolic pathways of ethanol-fed reactors with different operational modes and solids retention times. The results showed that different microorganisms were enriched under different SRT conditions, and syntrophic bacteria related to methane production could be enriched under low SRT conditions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Gokulan Ravindiran, Sivarethinamohan Rajamanickam, Muralikrishnan Ramalingam, Gasim Hayder, Balamurugan Karupaiya Sathaiah, Madhava Krishna Reddy Gaddam, Senthil Kumar Muniasamy, Priya Arunkumar
Summary: The present study investigated the sustainable approach for wastewater treatment using waste algal blooms. The biochar produced by the marine algae Ulva reticulata was used to remove chromium, nickel, and zinc from aqueous solutions. The study examined the adsorbents' properties and stability using SEM/EDX, FTIR, and XRD. The results showed that the biochar had high removal efficiency for the toxic metals, and the packed bed column effectively removed the heavy metal ions. The Thomas and Adams-Bohart models were found to best fit the regression values, and desorption studies were conducted to understand the sorption and elution processes.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Vignesh Vinayagam, Kavitha Nagarasampatti Palani, Sudha Ganesh, Siddharth Rajesh, Vedha Varshini Akula, Ramapriyan Avoodaiappan, Omkar Singh Kushwaha, Arivalagan Pugazhendhi
Summary: The presence of pollutants in water contributes to global pollution and poses significant threats to humans and wildlife. Finding effective wastewater treatment techniques is crucial for reducing pollutant accumulation in the environment. This paper highlights recent advances in the electrochemical advanced oxidation method and other processes for treating pharmaceuticals, dyes, and pesticide-polluted effluents.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
M. M. M. Ahmed, Kai-Yue Chen, Fang-Yu Tsao, Yi-Cheng Hsieh, Yu-Ting Liu, Min Tzou
Summary: This study investigated the sorption of citric acid onto humic acid-iron hydr(o)xide coprecipitate (HAFHCP) and the reciprocal effects of citric acid and P sorption on HAFHCP. The results showed that citric acid could increase P availability and have an impact on P sorption.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Xibo Xu, Zeqiang Wang, Xiaoning Song, Wenjie Zhan, Shuting Yang
Summary: The selection of predictor variables is crucial in building a digital mapping model for potentially toxic elements (PTEs) in soil. Traditionally, spatial and spectral parameters have been used as predictor variables, but the temporal dimension is often overlooked. This study demonstrates the value of incorporating temporal indices in the model, leading to significant performance improvements. The temporal-spatial-spectral covariate combinations used in a random forest (RF) algorithm achieve satisfactory mapping accuracy and outperform other methods.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yan Pei, Xun Liu, Mengbo Cao, Zijun Wang, Hongbing Yang
Summary: Heteroatom doping can reconfigure the electronic structure of heterogeneous catalysts, leading to the development of advanced oxidation water purification materials with superior performance and stability. In this study, a series of catalysts with different elemental doping were prepared using a simple and environmentally friendly method. The S-doped NiCo2O4 catalyst showed excellent catalytic performance for the removal of Tetracycline, with significantly increased kinetic constant and high oxidation and mineralization efficiency in a wide pH range. The degradation process was dominated by non-radical oxidation pathway after S doping, and the overall process moved towards low toxicity.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Srivalli Thimmarayan, Harshavardhan Mohan, Gaddapara Manasa, Karthi Natesan, Shanmugam Mahendran, Pavithra Muthukumar Sathya, Byung-Taek Oh, R. Ravi Kumar, Rangasamy Sigamani Gandhimathi, Arul Jayaprakash, Kamala-Kannan Seralathan
Summary: This study investigated the bacterial degradation of naphthalene (NPT) isolated from crude oil-contaminated soil. Bacillus sp. GN 3.4, a potential bacteria for NPT biodegradation, was isolated and the optimal conditions for NPT degradation were determined. The study suggests that Bacillus sp. GN 3.4 could potentially aid in bioremediation by eliminating NPT from the soil.
ENVIRONMENTAL RESEARCH
(2024)