Article
Chemistry, Physical
Song-Jeng Huang, Aristotle T. Ubando, Yan-Ting Lin, Chuan-Yun Wang, Alvin B. Culaba, Chin-Tsan Wang
Summary: This study evaluates the performance of three oxygen reduction catalysts in microbial fuel cells, with results showing that the B12/CNT catalyst exhibits the highest performance. This research could facilitate the application of wastewater for energy conversion.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Dong-Eun Lee, Satyanarayana Moru, Wan-Kuen Jo, Surendar Tonda
Summary: This study introduces a novel strategy that uses vitamin B12 as a bioinspired resource to enhance the efficiency of the oxygen reduction reaction. The researchers successfully tailored the chemical structure of vitamin B12 on a graphene substrate, resulting in catalysts with various active sites. The developed catalysts exhibit excellent electrocatalytic performance for the oxygen reduction reaction and outperform commercial platinum catalysts in terms of durability and methanol tolerance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
R. Sivaraman, Maria Jade Catalan Opulencia, Ali Majdi, Indrajit Patra, Mohammed Kadhem Abid, Ali Thaeer Hammid, Maryam Derakhshandeh
Summary: Quantum-chemical computations were used to calculate the thermodynamic variations of the potential reaction steps in the oxygen reduction reaction (ORR) of NiN3-Gr catalyst's active center. The consistency of adsorption energies for O-containing intermediates was observed. The advantageousness of following a 4-electron pathway compared to a 2-electron one was demonstrated by the great thermodynamic driving forces for reducing OOH. The results provide guidance for synthesis and selection of NiN3-Gr combinations for fuel cell applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Environmental
Bi-Lin Lai, Hai-Xia Liao, Shu-Qi Zhou, Hui-Xu Wei, Ai-Yi Li, Nan Li, Zhao-Qing Liu
Summary: This study successfully prepared a series of chalcogen-modified copper and nitrogen co-doped catalysts, which showed improved oxygen reduction reaction (ORR) performance through proper chalcogen doping while maintaining antibacterial properties. Among these catalysts, the optimized Cu2S@Cu-SNC-2 catalyst exhibited excellent durability and ORR activity, outperforming the commercial Pt/C catalyst. The MFC based on Cu2S@Cu-SNC-2 also achieved significantly higher power density and had fewer cathode biofilms.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Engineering, Environmental
Yuanfeng Liu, Shiquan Guo, Jiaona Wang, Congju Li
Summary: This research reviews the cathode components in microbial fuel cells (MFCs), including cathodic current collectors, various ORR catalysts, and electron acceptors. The stability and sustainability of ORR catalysts are identified as the key areas of current research. The power generation, target compound removal, merits, and drawbacks of different electron acceptors in MFCs are compared.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Amit Chaturvedi, Patit Paban Kundu
Summary: Microbial fuel cell technology utilizes organic substrates and oxygen to generate power, with the performance relying on the catalysts used for the oxygen reduction reaction. Various types of catalysts, including electrocatalysts, photo-electrocatalysts, and biocatalysts, have been evaluated for their electrochemical properties, catalytic effectiveness, stability, and power generation in MFCs.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Agricultural Engineering
Junfeng Chen, Yuhan Liu, Jiaqi Yang, Haidi Wang, Huan Liu, Shining Cao, Xiaochi Zhang, Renjun Wang, Yanyan Liu, Yuewei Yang
Summary: A cathode catalyst of MnO2@Co3O4 nanohybrids was prepared by a simple two-step hydrothermal method, which not only contained rich metallic elements and electrochemically active sites, but also improved the performance of microbial fuel cells, such as maximum output power and stabilization time.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Bolong Jiang, Decheng Lu, Nan Jiang, Hailin Jiang, Lihua Qi, Shunjie Shi, Yanyan Cui, Weiqiang Tan
Summary: The efficient oxygen reduction reaction (ORR) in microbial fuel cells (MFCs) can be achieved by using N-doped transition metal oxides as catalysts. In this study, non-precious N-doped Fe3O4/CoO@NC-T catalysts were prepared using a two-step strategy and showed exceptional ORR activity. Among the catalysts, Fe3O4/CoO@NC-750 exhibited the best performance with superior power density and electrochemical stability compared to commercial Pt/C catalyst in MFCs.
Article
Environmental Sciences
Junfeng Chen, Kunqi Zhao, Yiqun Wu, Jinyu Liu, Renjun Wang, Yuewei Yang, Yanyan Liu
Summary: The property of cathode in microbial fuel cell (MFC) is a key factor limiting its output performance. MnO2 nanorods were prepared by hydrothermal method and used as cathode catalysts for MFCs. The unique crystal planes and abundant hydroxyl groups on the surface of MnO2 nanorods provided active adsorption sites, leading to a significantly higher power density and stability compared to other cathode materials.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Satyanarayana Samireddi, V Aishwarya, Indrajit Shown, Saravanakumar Muthusamy, Sreekuttan M. Unni, Ken-Tsung Wong, Kuei-Hsien Chen, Li-Chyong Chen
Summary: A heterobimetallic corrole complex containing Co and Fe was successfully synthesized and used to prepare a dual-atom molecular catalyst through low-temperature pyrolysis, showing impressive ORR performance and stability. The catalyst exhibited a high power density in proton exchange membrane fuel cells, close to that of most metal-N4 catalysts.
Article
Engineering, Environmental
Xinyi Li, Yangtian Huang, Yubiao Lu, Tianbo Jia, Jianxin Wang, Peng Li
Summary: Nitrogen-doped graphene oxide (N-doped GO) catalyst improves the oxygen reduction reaction (ORR) performance of air-cathode microbial fuel cell (AMFC), enhancing the output voltage and power density. The NGO10 catalyst shows the highest output voltage (391.8 mV) and power density (1800 mWm-3) in AMFC, outperforming H-NGO and Pt/C electrodes. High-throughput sequencing reveals diverse bacterial communities in anode and cathode biofilms, with enriched denitrifying bacteria including Marinobacter, Methylophaga, and Arcobacter on NGO10 cathode. Real-time PCR confirms higher expression of denitrification-related genes in the NGO10 cathode biofilm.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Physical
R. Rohib, Eunjik Lee, Changki Kim, Hyunjoon Lee, Gu-Gon Park
Summary: In this study, a simple and eco-friendly synthesis method of Nb-based electrocatalysts was demonstrated using pulsed laser ablation in liquid and ammonia nitriding. The synthesized electrocatalyst samples had a nanoparticle size with a core-shell structure, showing improved electrical conductivity. The Nb4N5@NbOx/C_5h sample, heat-treated at 900 degrees C for 5 h, exhibited moderate onset potential and catalytic activity, with no degradation in oxygen reduction reaction performance over 10,000 potential cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Md Tabish Noori, Chizoba I. Ezugwu, Yunhai Wang, Booki Min
Summary: This research focuses on synthesizing novel amine-functionalized metal-organic frameworks (MOFs) as catalysts to improve the oxygen reduction reaction in microbial fuel cells (MFCs) for bioenergy recovery from organic wastes. The study demonstrates the successful synthesis of MOF nanoparticles with similar structure integrity and shows that the NH2-UiO-66(Zr/Ni) catalyst outperforms other catalysts in terms of ORR peak current, charge transfer resistance, and diffusion coefficient. The research suggests that NH2-UiO-66(Zr/Ni) can be used as an efficient catalyst for large-scale MFCs.
JOURNAL OF POWER SOURCES
(2022)
Review
Environmental Sciences
Simran Kaur Dhilllon, Patit Paban Kundu, Rahul Jain
Summary: This review summarizes the progress in carbon-based materials for oxygen reduction reaction (ORR) catalysts and their utilization in microbial fuel cells (MFCs). Incorporating transition metals and heteroatoms into carbon can enhance the ORR activity and power generation in MFCs. Nitrogen-doped carbons have abundant active sites and superior conductivity, stability, and catalytic activity. Carbon-based catalysts and biomass-derived carbons show potential to replace expensive Pt catalysts for ORR.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Ergui Luo, Yuyi Chu, Jie Liu, Zhaoping Shi, Siyuan Zhu, Liyuan Gong, Junjie Ge, Chang Hyuck Choi, Changpeng Liu, Wei Xing
Summary: Recent research efforts on cost-effective catalysts in fuel cells, especially on the cathode, have shown promising advancements in the development of M-N-x/C materials. The focus has been on clarifying the nature of catalytic sites and utilizing advanced characterization tools to optimize synthesis methodologies. Future directions aim to achieve rational and controllable synthesis of catalysts with sufficient active sites and strategies to mitigate catalyst degradation.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Energy & Fuels
Bhanupriya Das, Narendren Soundararajan, Sourav Pratim Kashyap, Jer-Huan Jang, Chin Tsan Wang, Anki Reddy Katha, Vimal Katiyar
Summary: Bioaugmentation is a potential tool for enhancing the performance of microbial fuel cells (MFCs) by modifying electrodes with biopolymers, although research on biopolymers in MFCs for real wastewater treatment is limited. The PANI/PLA electrode, a new environmentally friendly composite material, demonstrated significant improvements in power density and COD removal in MFCs fed with domestic wastewater, highlighting the potential of biopolymer-based MFCs for sustainable energy generation and clean water production.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Chin-Tsan Wang, Tzu-Hsuan Lan, Aristotle T. Ubando, Wen-Tong Chong, Alvin B. Culaba, Yung-Chin Yang
Summary: This study investigates the electron transfer mechanism in microbial fuel cells through numerical modeling and experimental validation using two types of bacteria and a nanowire conductive transferring pathway. Results show that the batch-type MFC with nanowire transfer pathway exhibits a higher limiting current density.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Wen-Jenn Sheu, Yu-Ting Chen, Aristotle T. Ubando, Yen-Cho Chen, Chin-Tsan Wang
Summary: This study proposed a 3D numerical model of dual-chamber MFCs to improve performance by redesigning and changing the inlet and outlet locations, addressing uneven biomass distribution and acetic concentration. Results showed a 5% increase in total current density with appropriate changes in input and output locations.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Hsueh-Yu Chen, Guan-Cheng Chen, Kuo-Wei Liao, Wen-Hui Wei, Hsin-Chih Huang, Chen-Hao Wang
Summary: This study presents a rapid and efficient method to produce hybrid catalysts for water electrolysis using microwave-assisted hydrothermal synthesis. The catalysts with a unique structure can prevent cracking of the catalytic layer, ensuring long-term efficiency in water electrolysis.
Article
Chemistry, Multidisciplinary
Chih-Hung Chen, Jian-Ming Chiu, Indrajit Shown, Chen-Hao Wang
Summary: In recent years, there has been a growing demand for flexible energy storage devices in flexible electronic systems. This research focuses on developing reliable electrodes with high mechanical flexibility, good electronic and lithium-ion conductivity. It introduces a novel approach to fabricate LTO/Cu nanostructures on a thin copper foil, providing essential flexibility to the electrode and demonstrating its potential in high-density and flexible commercial lithium-ion batteries.
Article
Energy & Fuels
Chin-Tsan Wang, Aristotle T. Ubando, Hung-Xun Li, An-Cheng Ruo, Yu-An Lin
Summary: Microbial fuel cells (MFCs) are a cutting-edge technology that converts biochemical energy into electrical energy. This study proposed a honeycomb design to replace the costly and environmentally impactful buffer commonly used in MFCs. The optimal honeycomb geometry with an inner diameter of 1.2 cm and a length of 5 cm achieved the highest power density for the MFC.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Anteneh Wodaje Bayeh, Daniel Manaye Kabtamu, Yun-Ting Ou, Ning-Yih Hsu, Hung-Hsien Ku, Yao-Ming Wang, Tai-Chin Chiang, Hsin-Chih Huang, Chen-Hao Wang
Summary: N-doped tungsten carbide nanowires were prepared and used to enhance the electrochemical capability of graphite felt electrodes in vanadium redox flow batteries. The nanowires exhibited a significant electrocatalytic effect on the redox reactions and provided more active sites, resulting in optimal electrochemical activity and higher energy and voltage efficiencies.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Hamed Cheshideh, Hsueh-Yu Chen, Kuo-Wei Liao, Kai-Chin Wang, Guan-Cheng Chen, Hsin-Chih Huang, Chen-Hao Wang
Summary: This study investigates the improved Ni nanoparticles grafted TiO2 nanotubes electrode with surface reconstruction for the facile hydrogen evolution reaction (HER) in alkaline and chloride solutions. The surface reconstruction creates heterojunction intermediates on the Ni nanoparticles and contributes to the low overpotential of the electrode in 1.0 M KOH solution. The electrode also shows good HER performance in acidic NaCl solution and exhibits long-term stability, making it a promising alternative to precious electrocatalysts in corrosive media.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Daniel Manaye Kabtamu, Yu-Zhen Li, Anteneh Wodaje Bayeh, Yun-Ting Ou, Zih-Jhong Huang, Tai-Chin Chiang, Hsin-Chih Huang, Chen-Hao Wang
Summary: This paper presents the successful fabrication of a low-cost platelike bismuth vanadate (BiVO4) material through a simple hydrothermal route, which is used as an electrocatalyst for the negative electrode in vanadium redox flow batteries (VRFBs). The BiVO4-decorated graphite felt (GF) electrode exhibits optimal electrocatalytic activity and reversibility for the redox reactions. The VRFB cell assembled with BiVO4-GF as the negative electrode demonstrates higher energy efficiency and stability compared to the cell with a heat-treated graphite felt (HT-GF) electrode.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Yusuf Pradesar, Afandi Yusuf, Daniel Manaye Kabtamu, Hsin-Chih Huang, Chen-Hao Wang
Summary: This study synthesizes the nickel-cobalt supported by the metal-organic framework CPO-27 and g-C3N4, demonstrating outstanding catalytic activity and stability for oxygen reduction reaction in alkaline media. The AEMFC using NiCo2-CPO-27/PCN-HT in the cathode shows excellent performance with a maximum power density of 224.4 mW cm(-2), which is 20% higher than AEMFC using Pt/C under the same condition.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chih-Hung Chen, Jian-Ming Chiu, Indrajit Shown, Chen-Hao Wang
Summary: This study fabricates flexible LiFePO4 free-standing electrodes through a scalable and straightforward solution-based etching process, which exhibit capacities and bending performances similar to conventional electrodes. It opens up a new avenue for the development of low-cost and flexible lithium-ion batteries.
