Review
Energy & Fuels
Maryam Taufiq Musa, Norazuwana Shaari, Siti Kartom Kamarudin
Summary: Carbon nanotube, graphene oxide, and montmorillonite are highly promising conductive fillers with outstanding cell performances based on previous studies. These materials are chosen as incorporated fillers recently due to their rolling up direction (chirality vector of graphene sheet), reactive functional groups attached on the carbon atoms and ionic multilayers of the tetrahedral and octahedral sheet, respectively. High proton conductivity, low electronic conductivity, low fuel permeability, low water transport, low production cost, and high mechanical stability in both dry and wet condition are properties that should be portrayed by a good hybrid membrane.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Wu Yujing, Zhou Hongxiu, Zhang Ao, Zhao Leqing
Summary: The research shows that flowing electrode direct methanol fuel cell (FEDMFC) effectively reduces methanol crossover rate while maintaining high power densities. Increasing flow rate can decrease crossover rate but will affect efficiency and stability, with optimal flow rate controlled at 1-3 sccm.
JOURNAL OF POWER SOURCES
(2022)
Article
Energy & Fuels
S. A. Gokulakrishnan, Vikas Kumar, G. Arthanareeswaran, A. F. Ismail, Juhana Jaafar
Summary: By adding halloysite nanoclay and f-GO to SPEEK membrane, the thermal stability, proton conductivity, and hydrophilicity can be improved, making it an excellent membrane material for direct methanol fuel cell applications.
Article
Engineering, Environmental
Wei Wuen Ng, Hui San Thiam, Yean Ling Pang, Yun Seng Lim, Jianhui Wong, Lip Huat Saw
Summary: In this study, a self-healable proton exchange membrane (PEM) with methanol-blocking properties was successfully demonstrated by assembling sulfonated graphene oxide (SGO) with Nafion and poly(vinyl alcohol) (PVA). The hybrid membrane showed higher proton conductivity and better methanol-blocking effect compared to recast Nafion, and exhibited excellent performance in a single DMFC.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Aser Alaa Ahmed, Malik Al Labadidi, Ahmed T. Hamada, Mehmet Fatih Orhan
Summary: This study provides an overview of the fundamentals, principles, and evaluation factors of direct methanol fuel cells (DMFCs), and conducts a parametric investigation on a JENNY 600S DMFC. The study finds that increasing the operating temperature of the fuel cell improves its output voltage, but decreases its maximum efficiency limits.
Article
Electrochemistry
Mohamed E. Abdelrahman, Hanguang Zhang, Gang Wu, Xianglin Li, Shawn Litster
Summary: In this study, a platinum group metal-free Fe-N-C catalyst derived from metal organic framework precursors was evaluated for the cathode side of a direct methanol fuel cell. The catalyst exhibited high performance under liquid methanol and air operation, with the cathode contributing significantly to the voltage loss. Improvements in catalyst layer fabrication were identified through nanoscale X-ray computed tomography.
ELECTROCHIMICA ACTA
(2022)
Article
Nanoscience & Nanotechnology
Yuzhi Ke, Jinguang Li, Wei Yuan, Yu Chen, Bote Zhao, Zhenghua Tang, Xuyang Wu, Shiwei Zhang, Yong Tang
Summary: Inspired by the structure of mangrove roots, a novel carbon nanotube film was developed as a functional interface for micro-direct methanol fuel cells, demonstrating ultralightweight, high porosity, and excellent electrical conductivity. The film significantly improved oxygen transport and water management, leading to a 88.6% increase in peak power density compared to traditional carbon nanotube arrays.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Biophysics
Liliana P. T. Carneiro, Nadia S. Ferreira, Ana P. M. Tavares, Alexandra M. F. R. Pinto, Adelio Mendes, M. Goreti F. Sales
Summary: This work presents an electrochemical sensor with a biomimetic plastic antibody film for the detection of carcinoembryonic antigen (CEA), integrated in the electrical circuit of a direct methanol fuel cell (DMFC). The sensor showed high sensitivity and selectivity, demonstrating linear responses in different media and operating well in the presence of human serum.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Thanarajan Kumaresan, Dineshkumar Ponniyan, Mathan Chandran, Jegathishkumar Ramasamy, Velarasan Venkatachalam, Karthikeyan Palaniswamy, Senthilarasu Sundaram
Summary: In this study, the overall performance of a direct methanol fuel cell with an active area of 100 cm(2) was experimentally tested under different operating situations. The most influencing parameters, such as anode flow rate, cathode reactant, and cathode flow rate, were compared in terms of their performance output. Additionally, the performance of different cathode flow channels, namely serpentine and sinuous, were compared to improve reactant supply. Using sinuous flow field at the cathode and specific methanol and oxygen flow rates, a maximum power density of 24 mW/cm(2) was achieved.
Article
Energy & Fuels
Li Guan, Prabhuraj Balakrishnan, Huiyuan Liu, Weiqi Zhang, Yilin Deng, Huaneng Su, Lei Xing, Zeljko Penga, Qian Xu
Summary: In this study, a novel membrane electrode assembly (MEA) was designed and prepared by adding a layer of graphene aerogel (GA), which optimized methanol transport and improved the output performance of DMFC at high methanol concentrations.
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
Alper Can Ince, Mustafa Fazil Serincan, C. Ozgur Colpan
Summary: This paper aims to identify the irreversibilities in the condenser of a direct methanol fuel cell (DMFC) system and present possible enhancements in its design through local entropy generation analysis (L-EGA). The study calculates the local entropy generation terms originating from heat and mass transfer in the condenser under variable operating conditions. The results show differences in irreversibilities due to heat and mass transfer, and the exergy destruction ratio provides an estimation of the condenser's exergy performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Haibo Gan, Hai Sun
Summary: This paper presents a novel methanol sensor-less startup control (SLSC) algorithm for direct methanol fuel cells (DMFCs), based on the unimodal relationship of current vs. methanol concentration. Experimental results showed that the SLSC algorithm is capable of starting a DMFC under various initial concentrations and temperatures, and can be adjusted to reduce startup time or improve energy efficiency.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Qiang Li, Dezhi Ming, Liang Fang, Xu Guo, Mao Lei, Jialin Liu
Summary: The research investigated the formation of CO2 bubbles in the anode microchannels of direct methanol fuel cells, and found that applying a DC electric field can effectively control the movement characteristics of CO2, thus reducing the anodic polarization effect.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Shiquan Guo, Shuyan Yu, Fei Chen, Le Wang, Man Guo, Tingli Ren, Chong Zhang, Congju Li
Summary: A novel complex composed of a CoFe alloy with a modulated electronic structure confined to nitrogen-doped carbon nanofiber (NCNF) and bamboo-like carbon nanotube (BCNT) was reported. The synthesized catalysts exhibited enhanced oxygen reduction activity and methanol tolerance, outperforming unmodified samples. Utilizing the CoFe@NCNF/BCNT as an anode catalyst resulted in higher power density in alkaline DMFCs compared to the Pt/C-modified DMFC.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Anatomy & Morphology
Arumona Edward Arumona, Anita Garhwal, Phichai Youplao, Iraj Sadegh Amiri, Kanad Ray, Suphanchai Punthawanunt, Preecha Yupapin
Summary: A silicon microring circuit embedded with a gold film has been proposed for Hall effect, current, and temperature sensing applications. The circuit operates using input polarized laser sources and can control space-time distortion. The generated whispering gallery mode (WGM) is used for plasmonic waves, leading to trapped electron cloud oscillation and ultimately enabling Hall effect, current, and temperature sensing.
MICROSCOPY RESEARCH AND TECHNIQUE
(2021)
Article
Engineering, Electrical & Electronic
Mahdi Bahadoran, Preecha Yupapin, Iraj Sadegh Amiri
Summary: The study derived the optical transfer function for add-drop resonator (ADR) using the signal flow graph method, investigated the impact of critical coupling and coupler loss on light transmission, and introduced a semi-empirical equation to correlate the geometric design of coupling gap with coupling strength parameters. The achieved results can be applied in optical communication technology and photonic sensor applications.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2021)
Article
Optics
Abdolkarim Afroozeh
Summary: In this study, single-layer graphene oxide, reduced graphene oxide, and graphene quantum dot nanosheets were synthesized and their optical properties were characterized. It was found that the length of edges and functional groups on the edges play a crucial role in defining the linear and non-linear optical properties of graphene-based nanomaterials.
Article
Polymer Science
Seyede Mahtab Hosseini, Saeedeh Mazinani, Majid Abdouss, Hossein Kalhor, Katayoon Kalantari, Iraj Sadegh Amiri, Zeinab Ramezani
Summary: A novel drug delivery system comprising nanoparticles based on chitosan/graphene oxide/folic acid was developed for targeted delivery of chemotherapeutic drugs. Characterization methods showed that the combination of chitosan and GO by chemical interaction created holes, leading to significant improvement in loading and release capabilities.
Article
Chemistry, Physical
Abdolkarim Afroozeh
Summary: This study introduces a novel optical modulator based on a silicon microring resonator, analyzed numerically and theoretically using the FDTD method and optimized with the Firely algorithm. The results show that the proposed modulator can achieve a bandwidth of up to 70 GHz, modulation depth of 58%, and extinction ratio of 18 dB, making it suitable for future research in related fields.
Article
Materials Science, Multidisciplinary
Aya J. Hussein, Sofyan A. Taya, D. Vigneswaran, R. Udiayakumar, Anurag Upadhyay, Toni Anwar, Iraj S. Amiri
Summary: A planar waveguide with three layers was studied, with the guiding layer having an exponentially graded index of refraction and the cover layer being a Kerr-type nonlinear material. Solutions in the guiding layer and substrate were found to be Bessel functions, showing attracting features such as no cut-off thickness for a symmetric waveguide structure.
RESULTS IN PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Mohammad Kazem Anvarifard, Zeinab Ramezani, Iraj Sadegh Amiri
Summary: A novel biosensor based on the TFET configuration has been proposed in this paper, aiming to effectively increase sensitivity and current during biomolecule detection. By modifying the bandgap and tunneling length through material and structural engineering, the biosensor is able to detect biomolecule samples with high sensitivity immune to possible noise interference.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
C. S. Boopathi, M. Sivaram, T. V. P. Sundararajan, R. Maheswar, P. Yupapin, Iraj S. Amiri
Summary: The proposed flexible bandenna utilizes a silicone wristband as the substrate, operating in the 2.45 GHz ISM band with stable directional radiation and gain greater than 5 dBi. It can be used as an ambient radio frequency energy harvester and integrated into future flexible electronic devices to support wireless communication.
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2021)
Article
Optics
Sofyan A. Taya, Nael Doghmosh, Anas A. Alkanoo, Vigneswaran Dhasarathan, N. R. Ramanujam, I. S. Amiri
Summary: In this paper, a four-layer slab waveguide sensor with an optimized reflectance dip is proposed, and the performance of using these two structures as optical sensors is compared.
Article
Chemistry, Physical
Abdolkarim Afroozeh
Summary: In this paper, a high-quality filter design based on nanostructured plasmon resonators is proposed, which can achieve optimal results in the communication wavelength range. Evaluation and optimization are carried out using the coupled mode theory and finite-difference time-domain method. The structure not only exhibits filtering behavior, but also allows control of the surface plasmon propagation speed, expecting wide applications in telecommunication links.
Article
Engineering, Electrical & Electronic
Abdolkarim Afroozeh, Behrad Zeinali
Summary: This paper presents a new passive optical fiber sensor based on surface plasmon resonance (SPR) technology, which offers high sensitivity and a wide detection range. By controlling the refractive index, the resonance wavelength of the fiber can be shifted. Experimental results demonstrate the good performance and agreement of this proposed structure.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Abdolkarim Afroozeh, Mohammad Salemizadeh Parizi, Saeed Abdolhosseini
Summary: This article reports a novel design of hollow ring core polymeric optical fiber that can provide stable support for high bandwidth data transmission. The simulation results demonstrate that the hollow ring core polymeric optical fiber has the potential for high-speed data transfer and low latency. Furthermore, the new design of the polymeric optical fiber exhibits a larger and flatter negative dispersion compared to glass-based fibers.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Energy & Fuels
Reza Yazdanpanah, Abdolkarim Afroozeh, Mahdiyeh Eslami
Summary: This study presents the design of a 1 kW, 50 Hz, and 500 RPM permanent magnet generator using analytical electromagnetic fields analysis for wind power generation. Performance analysis of the designed generator is conducted through simulations using the finite element approach, confirming the design constraints and required performances.
Article
Engineering, Electrical & Electronic
Majid Arezoomand, Abdolkarim Afroozeh, Siamak Pilban Jahromi, Hongxia Zhang
Summary: This paper investigates the problem of perfect quantum state transfer (PST) on the generalized honeycomb nanotorus. It characterizes the periodicity of all generalized honeycomb nanotorus and also studies the existence of PST between distinct atoms.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Chemistry, Physical
Abdolkarim Afroozeh
Summary: A novel multimode structure for refractive index optical fiber sensors is presented in this paper. The changes of propagated modes are investigated to detect the refractive index. Numerical results illustrate that the proposed fiber sensor has an extra spectral response and suitable sensory specifications, and it is label-free.
Article
Green & Sustainable Science & Technology
M. Genovese, F. Piraino, P. Fragiacomo
Summary: This research proposes the concept of a hydrogen valley in southern Italy, where hydrogen is produced centrally and delivered via fuel cell hybrid trains to refueling stations, providing transportation services. The analysis from both technical and economic perspectives shows that the cost of hydrogen and energy efficiency reached competitive levels, and hydrogen rail transport offers significant benefits in terms of emissions reduction and economic gains compared to conventional diesel trains and fully electric trains.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Miaomiao Liu, Payam Nejat, Pinlu Cao, Carlos Jimenez-Bescos, John Kaiser Calautit
Summary: This article provides a critical review of the performance of windcatchers, pointing out the current research gaps and issues, and proposing directions for further investigation and market prospects.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Solomon Boadu, Ebenezer Otoo
Summary: Despite Africa's vast energy resources, including wind energy, the continent faces challenges in developing its wind energy industry. Northern African countries and South Africa currently dominate the wind energy sector in Africa. To uplift Africa's socio-economic status, strong political will, supportive policies, and institutional frameworks are needed to drive the development of wind energy and overcome existing challenges.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
E. K. Grubbs, S. M. Gruss, V. Z. Schull, M. J. Gosney, M. V. Mickelbart, S. Brouder, M. W. Gitau, P. Bermel, M. R. Tuinstra, R. Agrawal
Summary: As the global population grows, the demand for food, energy, and water will increase significantly. However, limited land availability and competition for solar resources pose challenges to resource generation technologies. In the United States, both agriculture and solar energy production have adopted densification schemes to improve yields and energy output per unit of land. This research proposes an Agrivoltaic food and energy coproduction architecture that optimizes power generation while maintaining crop productivity by implementing ideal anti-tracking during critical growth periods. This technology offers a viable pathway for widespread solar implementation throughout the contiguous United States.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Han Shao, Rui Henriques, Hugo Morais, Elisabetta Tedeschi
Summary: The integration of offshore wind energy into the electric grid provides opportunities in terms of environmental sustainability and cost efficiency, but poses challenges to power quality. This survey offers a deeper understanding of disturbance detection and classification tools, exploring root causes, disturbance locations, and algorithmic solutions. It highlights synchronized waveform measurement and discusses evaluation metrics for detection and classification algorithms. Additionally, a novel system-wide monitoring framework is proposed.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Eleni Davidson, Yair Schwartz, Joe Williams, Dejan Mumovic
Summary: A continued upward trend in global greenhouse gas emissions poses risks to global infrastructure and built assets. Maintaining high indoor environmental quality standards is a challenge for higher education institutions under future climates. Passive cooling mechanisms may be insufficient to tolerate predicted temperature increases. Different building typologies have varying energy demand projections.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Kexin Pang, Jian Zhou, Stamatis Tsianikas, David W. Coit, Yizhong Ma
Summary: This study proposes a new framework for long-term microgrid expansion planning, using deep reinforcement learning method to consider various uncertainties and constraints. The framework aims to enhance the effectiveness of microgrid expansion planning from the perspectives of economy, resilience, and greenhouse gas emission reduction.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Jun Zhao, Kangyin Dong, Xiucheng Dong
Summary: The continuous growth of global electricity penetration has provided modern energy for alleviating energy poverty, but its impact on carbon neutrality has been overlooked. The research reveals that clean electricity from traditional fossil energy and renewable energy has a positive influence on the greenhouse effect. Eradicating energy poverty can effectively alleviate the greenhouse effect, especially in non-Belt and Road Initiative (B&RI) nations.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Hossein Shahbeik, Hamed Kazemi Shariat Panahi, Mona Dehhaghi, Gilles J. Guillemin, Alireza Fallahi, Homa Hosseinzadeh-Bandbafha, Hamid Amiri, Mohammad Rehan, Deepak Raikwar, Hannes Latine, Bruno Pandalone, Benyamin Khoshnevisan, Christian Sonne, Luigi Vaccaro, Abdul-Sattar Nizami, Vijai Kumar Gupta, Su Shiung Lam, Junting Pan, Rafael Luque, Bert Sels, Wanxi Peng, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: This review explores the production of biocrude oil from biomass feedstocks through the process of hydrothermal liquefaction (HTL). It discusses the impact of process parameters on the quality, quantity, cost, and environmental impacts of biofuels. The review also highlights the challenges and prospects for the future development of biocrude oil.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Meysam Majidi Nezhad, Mehdi Neshat, Georgios Sylaios, Davide Astiaso Garcia
Summary: Digital twins promise innovation for the marine renewable energy sector by using modern technological advances and the existing maritime knowledge frameworks. This research presents critical aspects of digital twin implementation challenges in marine energy digitalization approaches that use and combine data systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Yeganeh Sharifian, Hamdi Abdi
Summary: This paper discusses the background and objectives of the multi-area economic dispatch problem, as well as various techniques and methods applied in this field. It also covers comprehensive formulations of the problem and important issues in the field of probabilistic MAED, along with some related concepts and suggestions.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
J. G. B. Churchill, V. B. Borugadda, A. K. Dalai
Summary: The increasing global energy demand and the need to reduce fossil fuel reliance have created a demand for renewable and sustainable fuel sources. This review explores the potential of tall oil, a by-product of the pulping industry, as a feedstock for biofuels. The review provides an overview of tall oil production, purification, and treatment, and investigates recent trends and barriers towards tall oil-derived biofuels.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
David C. Broadstock, Xiangnan Wang
Summary: This study provides a general review of research on district cooling, identifying key topics and themes and highlighting potential research priorities for future studies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
L. Scharnhorst, D. Sloot, N. Lehmann, A. Ardone, W. Fichtner
Summary: This study investigates and analyzes the barriers to demand response in industrial and commercial sectors, highlighting their significance. Concerns about diminished product quality, disruptions to production processes, human resource management, and revenue uncertainty are identified as the most frequently cited barriers. Overcoming these barriers requires bridging knowledge gaps, allocating sufficient resources, and adapting external incentives and policies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Tong Feng, Yuechi Sun, Yating Shi, Jie Ma, Chunmei Feng, Zhenni Chen
Summary: Air pollution is a significant global challenge, and policymakers have implemented policies to reduce it. Evaluating the effectiveness of these policies is critical, and our study reveals trends and gaps in air pollution policy research. We found that research has shifted from focusing solely on air pollutants to including methodologies, policies, and health implications. China has emerged as a major contributor in this field of research.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
