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
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
Green & Sustainable Science & Technology
Panpan Zhang, Yanru Yang, Zhibin Yang, Suping Peng
Summary: In this study, an integrated catalyst layer Cu-CeO2/8 mol% Y2O3-ZrO2 was synthesized and applied in solid oxide fuel cells (SOFCs) fueled by methanol. The addition of the integrated catalyst layer reduced the polarization resistance by 55.2% and increased the peak power density by 42.32%, demonstrating good stability.
Article
Multidisciplinary Sciences
N. A. I. M. Ishak, S. K. Kamarudin, S. N. Timmiati, N. A. Karim, S. Basri
Summary: This study introduces a biosynthesis method of platinum from plant extracts, which reduces the cost of platinum production and shows enhanced efficiency and stability, with potential for commercialization.
JOURNAL OF ADVANCED RESEARCH
(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
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, Physical
Yannick Garsany, Robert W. Atkinson, Benjamin D. Gould, Rachel Martin, Laetitia Dubau, Marian Chatenet, Karen E. Swider-Lyons
Summary: The use of a dual-layer cathode catalyst layer improves the performance of proton exchange membrane fuel cells by boosting maximum power regardless of carbon porosity directionality. At 25% relative humidity, a 20% performance boost is realized with dual-layer cathode CLs. Electrochemical impedance spectroscopy results show that dual-layer catalyst layers aid in water management and reduce kinetic activity losses of the Pt.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Zhixin Chang, Li Guan, Jiajia Zhang, Weiqi Zhang, Qiang Ma, Akeel Shah, Lei Xing, Huaneng Su, Qian Xu
Summary: This study develops a novel gradient catalyst layer (G-CL) for improving the performance of direct methanol fuel cells (DMFCs). Compared with the traditional single catalyst layer (S-CL), the G-CL anode exhibits better performance, including improved methanol oxidation reaction (MOR) performance, lower methanol crossover, and higher power density.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
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
Nanoscience & Nanotechnology
Mohamed R. Berber, Muhammad Imran, Hanako Nishino, Hiroyuki Uchida
Summary: The addition of hygroscopic silica nanoparticles to the Pt/C anode catalyst layer can greatly prolong the lifetime of a Nafion membrane in the accelerated stress test and improve the output performance at low relative humidity. It can also decrease the formation rate of H2O2 and reduce the ohmic resistance, leading to effective utilization of Pt cathode catalyst. These findings provide a rational explanation for the enhancement of PEM durability and output performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Paper & Wood
Masa Hren, Silvo Hribernik, Selestina Gorgieva, Azadeh Motealleh, Siamak Eqtesadi, Rune Wendellbo, Shingjiang Jessie Lue, Mojca Bozic
Summary: Nitrogen-doped graphene oxide was studied as a filler in chitosan-based anion exchange membranes for alkaline anion exchange membrane fuel cells, showing promising results with significantly higher power density compared to benchmark commercial membranes. The membranes exhibited excellent properties and are considered as potential candidates for direct alkaline alcohol fuel cell applications.
Article
Nanoscience & Nanotechnology
Luiz Felipe Placa, Pedro-Lucas S. Vital, Luiz Eduardo Gomes, Antonio Carlos Roveda Jr, Daniel Rodrigues Cardoso, Caue Alves Martins, Heberton Wender
Summary: This study investigates the performance of black TiO2 nanoparticles as photoanodes in photocatalytic fuel cells (PFCs). By controlling the illumination conditions and self-doping of the material, the black TiO2 photoanode exhibits superior methanol oxidation and O-2 reduction performance, with a higher power density compared to traditional TiO2. Additionally, the black TiO2 photoanode shows good stability under light irradiation and efficient energy conversion under flow conditions.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Nianfang Wan
Summary: This paper proposes accelerated stress test protocols for direct methanol fuel cell (DMFC) to simulate real-life operation conditions and shorten evaluation time. The cell exhibits long survival time and stable membrane/electrode interface, but degradation of gas diffusion layer (GDL) and catalysts are found to cause performance degradation.
JOURNAL OF POWER SOURCES
(2023)
Article
Energy & Fuels
Shujie Xue, Qingwei Wang, Guangjun Dai, Minglin Zhao, Shanshan Sun, Nengfei Yu, Qinghong Huang, Yusong Zhu, Lijun Fu, Yuping Wu
Summary: The direct methanol fuel cell (DMFC) is considered a next-generation power source for portable electronic devices. However, the structure and materials of the membrane electrode assembly (MEA) need to be addressed for its application in flexible electronic devices. In this study, researchers developed a flexible titanium carbide/carbon nanofibers (TiC/CNFs) film using an electrospinning method, which served as both a gas diffusion layer (GDL) and a microporous layer. The TiC/CNFs film exhibited enhanced performance and excellent flexibility in the DMFC.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Polymer Science
Cataldo Simari, Isabella Nicotera, Antonino Salvatore Arico, Vincenzo Baglio, Francesco Lufrano
Summary: This study investigates the methanol transport properties of composite membranes to reduce methanol crossover in DMFCs, improving the performance and making it a viable option for high-energy DMFCs.
Article
Chemistry, Physical
Selmi Erim Bozbag, Tolga Gumusoglu, Serpil Yilmazturk, Christian J. Ayala, Mark Aindow, Huseyin Deligoz, Can Erkey
JOURNAL OF SUPERCRITICAL FLUIDS
(2015)
Article
Polymer Science
Keziban Huner, Kemal Ulutas, Huseyin Deligoz, Lina Sartinska, Tarik Eren
JOURNAL OF APPLIED POLYMER SCIENCE
(2018)
Article
Engineering, Chemical
Merve Deniz, Vedat Sariboga, Saffettin Yildirim, Huseyin Deligoz
POLYMER ENGINEERING AND SCIENCE
(2018)
Article
Physics, Multidisciplinary
Kemal Ulutas, Ugur Yahsi, Huseyin Deligoz, Cumali Tav, Serpil Yilmazturk, Mesut Yilmazoglu, Gonca Erdemci, Bilgehan Coskun, Sahin Yakut, Deniz Deger
CANADIAN JOURNAL OF PHYSICS
(2018)
Article
Nuclear Science & Technology
Ugur Yahsi, Huseyin Deligoz, Cumali Tav, Kemal Ulutas, Deniz Deger, Serpil Yilmazturk, Gonca Erdemci, Bilgehan Coskun, Mesut Yilmazoglu, Sahin Yakut
RADIATION EFFECTS AND DEFECTS IN SOLIDS
(2019)
Article
Chemistry, Physical
Merve Deniz, Huseyin Deligoz
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2019)
Article
Polymer Science
Goknur Donmez, Merve Okutan, Huseyin Deligoz
JOURNAL OF POLYMER RESEARCH
(2019)
Article
Chemistry, Multidisciplinary
Deniz Bozoglu, Huseyin Deligoz, Kemal Ulutas, Sahin Yakut, Deniz Deger
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2019)
Article
Engineering, Electrical & Electronic
Dilek Evecan, S. Samet Kaplan, M. Seref Sonmez, Saffettin Yildirim, Merve Okutan, Huseyin Deligoz, Esra Zayim
MICROELECTRONIC ENGINEERING
(2019)
Article
Chemistry, Physical
Merve Okutan, Huseyin Deligoz
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2019)
Article
Engineering, Chemical
Merve Arslan, Goknur Donmez, Ayca Ergun, Merve Okutan, Gulsen Albayrak Ari, Huseyin Deligoz
POLYMER ENGINEERING AND SCIENCE
(2020)
Article
Engineering, Chemical
Ayca Ergun, Eda Hazal Tumer, Hacer Yesim Cengiz, Huseyin Deligoz
POLYMER ENGINEERING AND SCIENCE
(2020)
Article
Materials Science, Characterization & Testing
Husnu Kemal Gurakin, Ahmet Celalettin Turan, Huseyin Deligoz
Article
Chemistry, Physical
Dilara Yilmaz Aykut, Oznur Yolacan, Huseyin Deligoz
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2020)
Article
Chemistry, Multidisciplinary
Serkan Acar, Hacer Yesim Cengiz, Ayca Ergun, Eymen Konyali, Huseyin Deligoz
TURKISH JOURNAL OF CHEMISTRY
(2020)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)