Article
Chemistry, Physical
Jiadi Liu, Minghuan Liu, Shaoyun Chen, Bingqing Wang, Jin Chen, Da-Peng Yang, Shangzhou Zhang, Wenxiao Du
Summary: The use of waste eggshells to develop CaO/Au nanocatalyst for transesterification reaction between soybean oil and methanol showed superior catalytic activity and good recyclability.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Energy & Fuels
Bishwajit Changmai, Andrew E. H. Wheatley, Ruma Rano, Gopinath Halder, Manickam Selvaraj, Umer Rashid, Samuel Lalthazuala Rokhum
Summary: A robust and magnetically recoverable Fe3O4@SiO2-SO3H core@shell nanoparticulate acid catalyst was successfully synthesized for the transesterification and esterification of triglycerides and free fatty acids. The catalyst showed high conversion rate, low activation energy, excellent chemical and thermal stability, and reusability. The study demonstrated the potential of the catalyst for biodiesel production.
Article
Chemistry, Applied
Syed Saman, Aamna Balouch, Farah Naz Talpur, Ayaz Ali Memon, Bibi Maryam Mousavi, Francis Verpoort
Summary: A green and facile route was performed to synthesize magnesium oxide nanoparticles using Ziziphus mauritiana leaves extract, which were then applied as an active catalyst for biodiesel production from the same plant's seed oil. The catalyst was characterized by various techniques and successfully recycled six times for the transesterification of Ziziphus seed oil, with the produced biodiesel meeting ASTM and EN biodiesel standard specifications.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Review
Thermodynamics
Joshua Iseoluwa Orege, Olayinka Oderinde, Ghebretensae Aron Kifle, Adeola Ahmed Ibikunle, Saheed Abiola Raheem, Onome Ejeromedoghene, Emmanuel Sunday Okeke, Olubunmi Michael Olukowi, Odunola Blessing Orege, Emmanuel Oluwaseyi Fagbohun, Taiwo Oladapo Ogundipe, Esther Praise Avor, Omoyemi Oluwatosin Ajayi, Michael Olawale Daramola
Summary: Heterogeneous catalysis provides a viable alternative for low-cost biodiesel production, and catalytic transesterification is considered the most feasible synthesis method. Nine commonly used heterogeneous catalysts have been studied, with a focus on versatile catalysts with high activity and low production cost.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Green & Sustainable Science & Technology
Ahmed A. El-sherif, Amany M. Hamad, Engy Shams-Eldin, Heba Allah Abdelnabi Eid Mohamed, Asmaa M. Ahmed, Maha A. Mohamed, Youssef S. Abdelaziz, Fatma Al-Zahraa Sayed, Esraa Ahmed Abu El qassem Mahmoud, Taiseer M. Abd El-Daim, Heba M. Fahmy
Summary: This study investigates the catalytic transesterification of waste cooking oil (WCO) using a composite catalyst derived from chicken eggshells and silver nanoparticles. The results show that the catalyst has excellent catalytic performance, and the biodiesel yield reaches 90% with acceptable fuel characteristics. The catalyst can be reused three times, making it a cost-effective and sustainable option for biodiesel production.
Review
Biotechnology & Applied Microbiology
Tafsirul Hassan, Md Mizanur Rahman, Md Arafat Rahman, Md Nurun Nabi
Summary: This review covers various aspects of biodiesel, including feedstock, characteristics, production methods, blending techniques, properties, combustion, engine performance, and emission analysis. Although biodiesel is comparable to petrodiesel in many aspects, there are still challenges to be overcome before its large-scale application in the automotive sector, such as compatibility, stability, and the impact on engine wear. Increased focus should also be given to second-generation biodiesel.
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2022)
Article
Energy & Fuels
Min Fan, Zhaoyu Li, Shijun Song, Tahani Awad Alahmadi, Sulaiman Ali Alharbi, Sabarathinam Shanmugam, G. K. Jhanani, Kathirvel Brindhadevi
Summary: With the increasing global population and growing awareness of the dangers of climate change, there is a greater need for sustainable and eco-friendly fuels. One efficient and appealing option is using biodiesel derived from non-edible sources. This paper focuses on the preparation and analysis of biodiesel from Karanja oil, comparing its emissions and combustion results to those of pure diesel.
Article
Green & Sustainable Science & Technology
Chee Yoong Chooi, Jia Huey Sim, Shiau Foon Tee, Zhi Hua Lee
Summary: The research focuses on developing a kinetic mechanism for biodiesel production catalyzed by a CaO nanocatalyst derived from waste cockle shells via thermal hydration-dehydration treatment. The transesterification reaction follows a Langmuir-Hinshelwood kinetic mechanism with surface reaction as the rate-limiting step, offering a relatively low activation energy and high FAME yield. The optimal conditions for preparing the nano CaO catalyst and conducting transesterification reactions were investigated and demonstrated promising results for potential industrial applications.
Article
Nanoscience & Nanotechnology
Mostafa R. Abukhadra, Mohamed Gameel Basyouny, Ahmed M. El-Sherbeeny, Mohammed A. El-Meligy, Monis Luqman
Summary: The study prepared a high-performance catalyst Na+/Clino by doping natural clinoptilolite with Na+ ions for transesterification of palm oil, achieving a biodiesel yield of 98.2% and excellent recyclability. The prepared Na+ doped clinoptilolite displayed higher efficiency as a heterogeneous basic catalyst compared to other catalysts studied before.
Article
Energy & Fuels
Veeranna R. Kattimani, K. V. Yatish, K. Pramoda, M. Sakar, R. Geetha Balakrishna
Summary: Magnetic nanoparticles were used as heterogeneous catalysts for eco-friendly biodiesel production. Acacia furnesiana fruit components, pods and seeds, were successfully used as low-cost starting materials for the synthesis of NiFe2O4 nanoparticles and as feedstock for biodiesel synthesis respectively. Response surface methodology and linear regression were used to determine the optimum conditions for the biodiesel production. A high AFOME/biodiesel yield of 93.1% was achieved using NiFe2O4 catalyst, with 4.61 wt% of loading, 14:1 M ratio of methanol to oil, 53 min reaction time, and 65°C temperature. The NiFe2O4 catalyst could be recovered and reused up to four cycles with > 80% AFOME yield. The activation energy for AFOME production was -44.54 kJ/mol according to kinetic study, and the thermodynamic investigation revealed the enthalpy and entropy of the system as -27.49 kJ/mol and -0.18 kJ mol/K, respectively.
Review
Chemistry, Multidisciplinary
Deshal Yadav, Sudipta Datta, Sujan Saha, Subhalaxmi Pradhan, Shweta Kumari, Pavan Kumar Gupta, Vishal Chauhan, Shiva Kumar Saw, Gajanan Sahu
Summary: This review discusses the widely used heterogeneous nanocatalysts for biodiesel synthesis, which are economical, recyclable, active, and non-corrosive. The review also explores their reusability and the critical factors related to reaction conditions.
Article
Energy & Fuels
Santiago A. Carrera, Juan S. Villarreal, Paula Acosta, Jose F. Noboa, Alvaro Gallo-Cordova, Jose R. Mora
Summary: Catalysts containing Fe and Ca synthesized in the presence of pectin have been shown to be highly efficient in the transesterification reaction for biodiesel production. The presence of pectin enhances the catalytic activity of the materials, resulting in higher biodiesel production yield under specific process conditions.
Article
Energy & Fuels
A. Anderson, Amal M. Al-Mohaimeed, Mohamed Soliman Elshikh, T. R. Praveenkumar, M. Sekar
Summary: The study focuses on the engine performance and emission characteristics of rapeseed and soya biodiesel dispersion on a novel nanocatalyst at different concentrations, showing that the incorporation of nanoparticles in biodiesel enhances performance by reducing the content of lignin and unsaturated fatty acids. Emissions of NOx, hydrocarbon and carbon monoxide increased significantly with higher nanoparticle concentrations, while the addition of nanoparticles reduced CO emissions and improved engine performance in soya seed biodiesel blends with 50 ppm nanoparticles compared to other blends.
JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
(2021)
Article
Engineering, Chemical
Reza Khoshbin, Maryam Naeimi, Fatemeh Mohamad Alikhani, Monireh Sadat Hosseini Hashemi, Hiresh Moradi
Summary: A series of MgO/ZnAl2O4 nanocatalysts were prepared and evaluated for their physicochemical properties. The catalysts with porous structure and highly dispersed active phase were successfully synthesized by different synthesis methods and fuel ratios. Among them, the sample synthesized with a urea to citric acid ratio of 1:2 exhibited the best catalytic performance and stability.
ADVANCED POWDER TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yanfei Xie, Danxia Wang, Sattam Fahad Almojil, Abdulaziz Ibrahim Almohana, Abdulrhman Fahmi Alali, Yihui Zhou, Amir Raise
Summary: In this study, a novel nanocatalyst CaO-MgFe2O4@K2CO3 was used to generate biodiesel from used frying oil (UFO). The structural and morphological properties of the nanocatalyst were evaluated and the biodiesel yield was significantly increased compared to the traditional catalyst CaO. The physical features of the biodiesel met international standards and the transesterification reaction was found to be endothermic and non-spontaneous. The reusability of the nanocatalyst was demonstrated and its environmental impact was lower than common catalysts.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Energy & Fuels
Karthikeyan Murugesan, Renganathan Sahadevan
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2017)
Article
Energy & Fuels
M. Karthikeyan, S. Renganathan, P. Govindhan
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2017)
Article
Energy & Fuels
P. Govindhan, M. Karthikeyan, M. Dharmendira Kumar
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2017)
Article
Energy & Fuels
M. Karthikeyan, S. Renganathan, G. Baskar, S. Nambirajan
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2017)
Article
Energy & Fuels
M. Karthikeyan, S. Renganathan, G. Baskar
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2017)
Article
Chemistry, Applied
M. Karthikeyan, S. Nambirajan, G. Baskar, S. Renganathan
INDIAN JOURNAL OF CHEMICAL TECHNOLOGY
(2020)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.