Review
Energy & Fuels
Siti H. Osman, S. K. Kamarudin, Nabila A. Karim, Sahriah Basri
Summary: This article discusses the application of graphene in fuel cell technology, introduces its electrochemical characteristics, and summarizes the research trends and economic aspects of graphene. It also discusses the potential benefits and future development of enhancing fuel cell system performance using graphene.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
P. Dhanasekaran, S. Vinod Selvaganesh, Avanish Shukla, S. D. Bhat
Summary: The study demonstrates the synergistic interaction between graphene and amorphous carbon nanohybrid support framework, resulting in the successful synthesis of a Pt matrix with excellent activity and stability in polymer electrolyte fuel cells. The graphene-amorphous carbon nanohybrid-Pt matrix with thin Pt loading exhibits outstanding catalytic activity, while the synergistic interaction enhances the stability of Pt, retaining about 50% initial performance even after 5000 cycles.
Article
Biophysics
Tais Monteiro Magne, Thamires de Oliveira Vieira, Bianca Costa, Luciana Magalhaes Rebelo Alencar, Eduardo Ricci-Junior, Rui Hu, Junle Qu, Camilo Zamora-Ledezma, Frank Alexis, Ralph Santos-Oliveira
Summary: Nanotechnology has significant importance in various fields such as medical, electronic, and environmental sciences. The use of graphene and its derivative composite materials in biomedicine is increasing, but further research is needed to understand how their physico-chemical properties influence biological responses.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Chemistry, Physical
Xin Tong, Junwei Hou, Yuzhi Li, Hualing Li, Weichuang Wu, Yanning Guo, Yiying Liu, Daishuang Fu, Xingkai Huang, Zhe Xiong, Jun Jiang, Long Qi, Hailin Wang, Weizi Cai
Summary: This paper reports a superior DC-SOFC powered by Fe-loaded used cigarette filter (UCF) biochar. The UCF biochar, characterized by its micron-sized structure and metal elements beneficial to the performance of DC-SOFC, serves as a feasible fuel with a peak power density of 341 mW cm-2.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Yi-Ping Liu, Yun-Tao Lv, Jin-Feng Guan, Fazal Muhammad Khoso, Xin-Yu Jiang, Jun Chen, Wen-Jie Li, Jin-Gang Yu
Summary: Adsorption is a recommended approach for treating wastewater due to its low cost, good availability, ease of fabrication, and high efficiency. Using 3D graphene- and graphene oxide-based architectures for adsorption offers advantages such as good selectivity and high effectiveness, making them a potential alternative for recovering valuable substances from wastewater.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Amel C. Ghogia, Lina M. Romero Millan, Claire E. White, Ange Nzihou
Summary: Understanding the mechanism of iron-catalyzed graphitization of biomass is crucial for large-scale synthesis of green graphene. The study reveals the direct effect of the iron molecular structure on the formation of highly graphitic carbon.
Article
Chemistry, Physical
Heeyeon Kim, Guk-hyeon Kwon, Seong Ok Han, Alex Robertson
Summary: Developing cost-effective electrocatalysts for proton electrolyte membrane fuel cell electrodes has proven challenging due to the difficulty in finding inexpensive alternatives to platinum with catalytic activity. This study reveals that a graphene-nanocellulose composite effectively reduces the loss of active area in ultrafine nanoparticle catalysts by preventing Ostwald ripening and dissolution.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Lingling Zhai, Chiu Shek Wong, Honglei Zhang, Pei Xiong, Xiangdang Xue, Yiu Lun Ho, Cuidong Xu, Yat Chi Fong, Jie Mei, Wing Wa Chan, Shu Chuen Ip, Shuangxia Niu, Shu Ping Lau, Ka Wai Eric Cheng, Molly Meng-Jung Li
Summary: An NH3-powered fuel cell electric golf cart system was developed and demonstrated, showing the feasibility of NH3-powered fuel cell vehicles. The integrated system can provide sufficient energy for a 3 kW golf cart to continuously drive for over 500 km. This work serves as a future reference and inspiration for the practical developments of NH3-based H-2 fuel applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Dong Han, Yang Liu, Yang Lv, Wei Xiong, Fang Hao, Hean Luo, Pingle Liu
Summary: Metal-free catalysts for hydrogenation reactions are a major challenge in catalysis. Frustrated Lewis Pairs (FLPs) systems and heteroatom-doped carbon materials are currently the mainstream research in this field.The study constructed a series of oxygen-induced zigzag graphene (OZG) and used it as a metal-free catalyst in nitrobenzene hydrogenation. The OZG-800 showed promising performance with 99.7% nitrobenzene conversion and 94.4% selectivity to aniline. The zigzag edge and oxygen species were found to be the active centers in nitrobenzene hydrogenation.
Article
Materials Science, Multidisciplinary
Jianjun Liu, Liheng Yang, Qiang Chen, Yueju Zhao, Peng Xiao
Summary: A simple and efficient method of fabricating superhydrophobic anti-corrosive surface materials containing graphene oxide and silica nanoparticles was developed in this study, which effectively improved corrosion resistance properties. This method is rapid and inexpensive, potentially leading to broader applications of metal substrates in the future.
Article
Materials Science, Multidisciplinary
A. A. Sadeghi Ghazvini, E. Taheri-Nassaj, B. Raissi, R. Riahifar, M. Sahba Yaghmaee, Majid Shaker
Summary: In this study, the EPD technique was used to fabricate the Co3O4-Graphene nano-composite for binder-free electrodes in electrochemical supercapacitors. The characterization of the composite showed an enhanced specific capacitance attributed to the presence of graphene in the microstructure.
Article
Chemistry, Physical
K. Krishnadevi, S. RatnaKumari, D. Prasanna, H. Bhavani Naga Prasanna, V Anuradha
Summary: The study investigates the electrocatalytic performance of platinum-gold nanoparticles decorated triazine framework on glycerol, with their oxidized products analyzed to show enhanced activity. Results indicate that the Pt-Au/Poly(CC-co-BP)-RGO catalyst exhibits improved catalytic activity and stability compared to other catalysts, achieving a maximum power density of 122.96 mWcm(-2) in a single direct alkaline glycerol fuel cell at 70 degrees C.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Review
Energy & Fuels
Norazuwana Shaari, Siti Kartom Kamarudin, Raihana Bahru
Summary: Carbon quantum dots (CQDs) and graphene quantum dots (GQDs) are frequently mentioned in recent studies for their unique potential in electrical, optical, and optoelectrical properties. They are highly stable due to their carbon material and environmentally friendly nature. Various production methods and additive materials can enhance their performance, with shapes and sizes influenced by different parameters. Applications in fuel cell technology have shown improved performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Asmita Shah, Harish Singh, Pongthep Prajongtat, Manish Chandra Joshi, Supa Hannongbua, Nattaporn Chattham, Young-Ki Kim, Sandeep Kumar, Dharmendra Pratap Singh
Summary: Researchers have converted chestnut waste into reduced graphene oxide and nitrogen-doped reduced graphene oxide with pyridinic-N dominance. The synthesized catalyst exhibits excellent oxygen reduction reaction activity, surpassing that of the commercial Pt/C catalyst, and shows higher methanol tolerance.
NEW JOURNAL OF CHEMISTRY
(2023)
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.
