Article
Chemistry, Physical
Gyu-Na Bae, Hye-Won Kim, Eun-Mi Jung, Sungmin Kang, Yong-Gun Shul, Dong-Hyun Peck
Summary: MOR/PTFE Nafion composite membranes were prepared by impregnating Nafion solutions in a PTFE porous support with a modified form of MOR. The addition of MOR had a positive effect on reducing methanol permeability and increasing water uptake of the membrane.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Nur S. A. Hamid, S. K. Kamarudin, Nabila A. Karim
Summary: By using waste material eggshell powder to produce a composite membrane, the problems in direct methanol fuel cells can be addressed, with the performance of the composite membrane comparable to that of commercial Nafion 117 membrane. The results demonstrate the potential of eggshell powder as a filler in a Nafion matrix for applications in DMFC.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Environmental
Pradip Das, Bishnupada Mandal, Sasidhar Gumma
Summary: This study involves the synthesis of amino acid grafted nanocomposites as proton exchange membranes for direct methanol fuel cells and assessing their selectivity. The results show significant improvement in blocking methanol and enhanced conductivity of the composite membrane after modification.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Selestina Gorgieva, Azra Osmic, Silvo Hribernik, Mojca Bozic, Jurij Svete, Viktor Hacker, Sigrid Wolf, Bostjan Genorio
Summary: In this research, a series of nanocomposite membranes based on chitosan and three different N-doped graphene derivatives were prepared and characterized, with the 0.07% loading of N-doped graphene derivatives significantly impacting the morphology and properties of the CS membrane. The CS/N rGONRs (0.07%) membrane showed improved performance in direct alkaline ethanol fuel cells compared to the pristine CS membrane.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Analytical
Chaoran Liu, Sanshan Hu, Lu Yin, Wenli Yang, Juan Yu, Yumin Xu, Lili Li, Gaofeng Wang, Luwen Wang
Summary: This study analyzed and discussed the effect of an anode composite electrode on the performance of a micro direct methanol fuel cell, focusing on the catalyst layer and micro-porous layer. It was found that optimizing the preparation under specific conditions can improve the performance of the fuel cell.
Article
Polymer Science
Rudzani Sigwadi, Touhami Mokrani, Phumlani Fortune Msomi
Summary: Electrospun PAN nanofibers decorated with ZrO2 and blended with graphene oxide nanofibers were used to improve the performance and conductivity of Nafion membrane in fuel cells. The modified composite membrane demonstrated higher proton conductivity and overall membrane properties, as well as superior fuel cell efficiency compared to commercial Nafion and existing literature. With lower methanol permeability and a proton conductivity of 5.46 x 10(-8) cm(2)/s and 0.46 mS/cm respectively, the Nafion-PAN/ZrO2-GO nanofiber membrane achieved a fuel cell performance of 75.9 mWcm(-2) at a current density of 250 mAcm(-2). The composite membrane shows potential for application in fuel cells.
JOURNAL OF POLYMER RESEARCH
(2022)
Article
Engineering, Chemical
Asmaa Attya Shalaby, Andrew N. N. Aziz, Zdenko Spitalsky, Ahmed Mohamed Omer, Mohamed Samir Mohy-Eldin, Randa Eslah Khalifa
Summary: Graphene oxide nanosheets (GO) were used as an additive to fabricate a cation exchange membrane for direct methanol fuel cell (DMFC) applications. The composite membrane exhibited improved properties, including enhanced methanol blocking ability and increased mechanical, oxidative, and thermal stabilities. The GCA/GO (2 wt.%) membrane showed the highest selectivity and performance in terms of water uptake, proton conductivity, methanol permeability, and electrical selectivity. The findings suggest the potential application of these membranes in DMFCs.
Article
Energy & Fuels
G. G. Gagliardi, A. El-Kharouf, D. Borello
Summary: The main objective of this study was to investigate the potential of GO-PEM in DMFC applications and determine the optimal GO loading. The addition of GO to the Nafion polymer resulted in membranes with higher tensile strength, water and methanol uptake. It was found that the presence of carbon compounds slightly reduced proton conductivity, suggesting the need to determine the optimal GO content. The study also assessed the advantages of using GO-PEMs in DMFCs and found that performance was enhanced with higher temperature and anode flow rate, while an increase in methanol concentration had a limited beneficial effect.
Article
Chemistry, Physical
Chenxue Yao, Jie Xue, Lijian Xu, Yan Su, Jidong Bu, Rodney D. Priestley, Shifeng Hou
Summary: By synthesizing PDA/CG microspheres, the novel Pt-based electrocatalysts exhibit improved structure and enhanced electrocatalytic performance, showing excellent activity towards methanol oxidation reaction.
APPLIED SURFACE SCIENCE
(2021)
Review
Polymer Science
Gowthami Palanisamy, Tae Hwan Oh, Sadhasivam Thangarasu
Summary: A direct methanol fuel cell (DMFC) is an excellent energy device that converts methanol to energy with high efficiency. Commercial membranes for DMFCs are expensive and have high methanol permeability, but novel developments using cost-effective cellulose-based materials have improved performance. In this review, the advances and utilization of different cellulose materials as proton-exchange membranes (PEMs) for DMFCs are discussed, including cellulose derivatives and composites with inorganic additives.
Article
Chemistry, Physical
Ewelina Urbanczyk, Marta Wala, Agata Blacha-Grzechnik, Agnieszka Stolarczyk, Artur Maciej, Wojciech Simka
Summary: This study presents a simple method for preparing electrocatalytic materials for methanol oxidation, utilizing a composite of nickel, cobalt, and graphene. Electrodes prepared through an electrochemical deposition process exhibited stable performance and optimal results were achieved with a specific current density, showing promising catalytic properties for methanol electrooxidation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Guoxiao Xu, Zhiguang Wu, Ziyi Xie, Zenglv Wei, Jing Li, Konggang Qu, Ying Li, Weiwei Cai
Summary: By incorporating GO and GQD into HBM, this study successfully enhanced the proton/methanol selectivity and improved the performance of DMFC. Compared to pristine HBM, the proton conductivity of GQD-HBM membrane increased by 17% while methanol permeability decreased by approximately 50%, leading to an increase in proton/methanol selectivity by over 80%.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Polymer Science
Geng Cheng, Zhen Li, Shan Ren, Dongmei Han, Min Xiao, Shuanjin Wang, Yuezhong Meng
Summary: The study focused on a novel SPFEK composite membrane with excellent mechanical properties and antioxidant stability in a hydrated state, suitable for direct methanol fuel cells. The performance of the composite membrane was thoroughly evaluated, demonstrating its potential applications in fuel cell technology.
Article
Chemistry, Multidisciplinary
Dacheng Zhang, Kang Li, Ziten Wang, Zhengang Zhao
Summary: In the structure of mu DMFC, the anode diffusion layer composed of reduced graphene oxide/carbon paper (rGO/CP) plays a crucial role in improving fuel cell performance. The rGO/CP not only reduces the resistance of the cell, but also decreases methanol crossover, enabling the cell to operate stably at higher concentrations for a longer duration.
Article
Chemistry, Physical
Xin Liu, Shaoxiong Zhai, Xiyuan Zhang, Pengzhi Mao, Shaojian He, Wenxu Dai, Jun Lin
Summary: A new type of sulfonated graphene oxide product, SDGO, is fabricated by sulfonation on polydopamine (PDA) deposited graphene oxide, resulting in improved uniformity/sufficient sulfonation compared to PDA-free SGO. The sulfonated poly(ether ether ketone) (SPEEK) composite membranes filled with SDGO exhibit better matrix-filler compatibility, larger hydrophilic domains, and improved proton conductivity, methanol barrier, and mechanical properties. SPEEK-SDGO based DMFCs outperform Nafion 212 based DMFCs in terms of power density and exhibit superior durability during DMFC operations.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Apichaya Theampetch, Chaiwat Prapainainar, Sabaithip Tungkamani, Phavanee Narataruksa, Thana Sornchamni, Liney Arnadottir, Goran N. Jovanovic
Summary: A systematic microkinetic model was proposed for cobalt-catalyzed Fischer Tropsch synthesis, accurately predicting product distribution trends and hydrogen utilization. High model accuracy was achieved in material balance, with an error of 10(-10)-10(-3)%.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Bulin Boonrod, Paweena Prapainainar, Viganda Varabuntoonvit, Kandis Sudsakorn, Chaiwat Prapainainar
Summary: This study compared the environmental impacts of bio-hydrogenated diesel (BHD) produced from palm fatty acid distillate (PFAD) and fatty acid methyl ester (FAME). The results showed that energy consumption of BHD-PFAD was 1.18 times higher than that of BHD-FAME, while GHG emission was 13.56 times lower. The overall environmental impacts of BHD-PFAD were also 3.58 times greater than that of BHD-FAME.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Napassorn Chanka, Wongsaphat Mondach, Peerapan Dittanet, Supacharee Roddecha, Chalida Niamnuy, Paweena Prapainainar, Anusorn Seubsai
Summary: Pineapple leaf fibers were used to prepare modified microcrystalline cellulose (MCC) sorbents for H2S sorption, with primary, secondary, and tertiary amine modifications enhancing thermal stability and porosity. H2S sorption studies showed that MCC-MAPS had the best performance among MCC-APS and MCC-DAPS at the same loading level. MCC-DAPS at 5% was found to be the most effective sorbent for selective H2S removal in the presence of CO2.
Article
Food Science & Technology
Sirada Sungsinchai, Chalida Niamnuy, Anusorn Seubsai, Paweena Prapainainar, Pattra Wattanapan, Wasina Thakhiew, Vijaya Raghavan, Sakamon Devahastin
Summary: The study found that the proportion of nanocellulose, viscosity, GMODIFIER LETTER PRIME and G values in the process of ANFC increased with the number of microfluidization passes. ANFC12 exhibited gel-like behavior, with the strongest three-dimensional network structure, and required the lowest concentration to enhance thin liquid foods into honey-like consistency. TONFC needed to be added by as much as 8.5, 1.3 and 2.3 times the amount of ANFC12 to achieve the same consistency in thickened water, milk and soup, respectively.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2021)
Review
Chemistry, Physical
Nitchakul Hongloi, Paweena Prapainainar, Chaiwat Prapainainar
Summary: Green diesel is a second-generation biofuel developed to meet the demand for liquid fuel and the decrease in availability of fossil fuels. It can be produced via deoxygenation from various feedstocks and the reaction occurs in a multiphase system. Nickel metal catalyst has shown good performance in green diesel production.
MOLECULAR CATALYSIS
(2022)
Article
Engineering, Electrical & Electronic
Saran Kingsakklang, Supacharee Roddecha, Katechanok Pimphor, Taweechai Amornsakchai, Anusorn Seubsai, Peerapan Dittane, Paweena Prapainainar, Chalida Niamnuy, Thanya Phraewphiphat
Summary: A high graphitic activated porous carbon material was successfully produced from pineapple leaf fiber (PALF) using a hydrothermal process and KOH chemical activation. The optimized conditions resulted in a 3D interconnecting opened-channel porous carbon material with high BET specific surface area. The carbon electrode showed high initial charge-discharge capacity and efficient cycling stability for lithium batteries.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Polymer Science
Napaporn Kumkrong, Peerapan Dittanet, Pongdhorn Saeoui, Surapich Loykulnant, Paweena Prapainainar
Summary: This research investigated the effects of silica content and sulfur vulcanization system on the mechanical properties of silica-filled natural rubber (NR) composite. The study found that treated silica exhibited better mechanical properties, and rubber vulcanized with the conventional sulfur vulcanization system showed superior mechanical properties compared to other systems.
JOURNAL OF POLYMER RESEARCH
(2022)
Article
Engineering, Multidisciplinary
Worawat Jansomboon, Sirinart Chio-Srichan, Surapich Loykulnant, Paweena Prapainainar
Summary: This study investigated the natural rubber (NR) cured by electron beam (EB) irradiation prepared by latex mixing using SAXS and WAXS techniques. The results showed that the EB irradiation dose and fillers had an effect on the mean distance of crosslink and strain-induced crystallization. Additionally, the WAXS study revealed an increase in the intensities of crystallinity reflection peaks with higher EB irradiation doses.
RESULTS IN ENGINEERING
(2022)
Article
Polymer Science
Worawat Jansomboon, Surapich Loykulnant, Peerapan Dittanet, Paweena Prapainainar
Summary: The mechanical properties of electron beam (EB)-irradiated natural rubber (NR) composites were improved by adding a mixture of silica and graphene nanoplatelets (GE) into the NR matrix. Dynamic mechanical analysis (DMA) showed that the storage moduli of the NR composites filled with fillers were higher than that of the untreated NR. Additionally, the addition of fillers decreased the water absorption of the irradiated NR composites at high temperatures and humidity.
JOURNAL OF RUBBER RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Surached Thongboon, Chattathip Muenchanama, Ravinnipa Chanthanumatt, Manop Charoenchaitrakool, Kandis Sudsakorn, Paweena Prapainainar, Supacharee Roddecha, Metta Chareonpanich, Kajornsak Faungnawakij, Anusorn Seubsai
Summary: A cellulose composite sheet loaded with silver nanoparticles was synthesized using pineapple leaves as the raw material. The composite sheet showed a visible color change upon exposure to hydrogen sulfide gas and had good accuracy and stability for detecting the gas.
Article
Chemistry, Multidisciplinary
Kanokporn Pornbencha, Sarannuch Sringam, Supicha Piyanirund, Anusorn Seubsai, Paweena Prapainainar, Chalida Niumnuy, Supacharee Roddecha, Peerapan Dittanet
Summary: This study investigated the cinnamate functionalization of cellulose nanocrystals (Cin-CNCs) as a potential organic reinforcing and UV-shielding agent in polylactic acid (PLA) films. The functionalization of cinnamate on CNCs substantially improved the dispersion of fillers on the PLA matrix. The PLA films containing 3 wt% Cin-CNCs exhibited high transparency and UV absorption in the visible region, while improving the mechanical and barrier properties of the PLA films.
Article
Multidisciplinary Sciences
Sanhaporn Phachaipum, Pongarn Raipirom, Rada Ruangsawat, Paweena Prapainainar
Summary: The study demonstrated the use of NCC reinforced composite membrane exhibiting better water uptake and solubility, while the MCC reinforced composite membrane showed superior performance in methanol permeability.
SURANAREE JOURNAL OF SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Ratchanika Ngamkham, Paweena Prapainainar, Supacharee Roddecha, Peerapan Dittanet
Summary: In this study, electrospinning technique was used to produce natural rubber fibers and lignin composite fibers, and the morphology, diameter, and functional groups of the fibers were investigated. Results showed that deproteinization treatment and increased lignin loading had effects on the fiber properties.
ENGINEERING JOURNAL-THAILAND
(2021)
