Article
Chemistry, Physical
Changshun Chu, Jianting Liu, Liling Wei, Jiejie Feng, Huayi Li, Jianquan Shen
Summary: Fe3C and Fe2P-incorporated N-doped porous carbon (Fe3C/Fe2P@NC-N4Fe2) was prepared using the rich P element in radish via carbothermal reduction method without adding P resources. The catalyst showed excellent ORR performance due to abundant active sites provided by Fe3C and Fe2P and facilitated mass transfer by the porous structure in the N-doped carbon matrix. The AC-MFC assembled with Fe3C/Fe2P@NC-N4Fe2 as the cathodic ORR catalyst exhibited superior power output performance with 948.9 mW m-2, 1.03 times higher than that of 20 wt% Pt/C catalyst. Therefore, Fe3C/Fe2P@NC-N4Fe2 can be a viable alternative to Pt/C catalyst in AC-MFCs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Baofang Zhang, Renlian Chen, Zefan Yang, Yingxin Chen, Lihua Zhou, Yong Yuan
Summary: The study focused on the use of rapeseed meal-based ARM-900 material as an alternative to commercial Pt/C catalysts in the oxygen reduction reaction. ARM-900 demonstrated superior electrocatalytic performance, higher durability, and better methanol tolerance compared to Pt/C catalysts, attributed to its abundant pore structure and heteroatom doping. MFCs with ARM-900 as the cathode showed significantly higher maximum power density than those with Pt/C catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Kengqiang Zhong, Henghui You, Lei Huang, Han Li, Linzhe Huang, Xianjie Liu, Hongguo Zhang
Summary: This study reports a strategy based on ammonium fluoride gas-steaming method to enhance the structural defects and density of N, F active sites in metal-free catalysts. The results show that this method significantly improves the adsorption affinity of O2 and oxygen intermediates on the catalysts, resulting in excellent ORR catalytic activity and long-term stability. This work proposes a facile and efficient in situ gas-steaming strategy to develop metal-free cathode catalysts with superior performance.
JOURNAL OF POWER SOURCES
(2023)
Article
Engineering, Environmental
Satpal Singh Sekhon, Jin-Soo Park
Summary: The research on biomass-derived PCNs and their nitrogen doping is crucial for energy conversion, and innovative green methods can improve the production efficiency and sustainability of PCNs, as well as explore suitable preparation methods in different biomasses.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Chengyong Shu, Zhuofan Gan, Yuyang Hou, Ting Zhu, Jijun Ma, Wei Tang, Yuping Wu
Summary: This study introduces nitrogen-rich m-phenylenediamine into the synthesis of porous carbon spheres to tune the pore structure and nitrogen-doped active sites, resulting in more nitrogen-doped functional species. The optimized cathode catalyst achieved improved oxygen reduction reaction activity, with a half-wave potential close to that of commercial Pt/C catalyst.
ENERGY & ENVIRONMENTAL MATERIALS
(2021)
Article
Chemistry, Physical
Kengqiang Zhong, Linzhe Huang, Han Li, Yi Dai, Hongguo Zhang, Ruoyun Yang, Samuel Raj Babu Arulmani, Xianjie Liu, Lei Huang, Jia Yan
Summary: The Ag/Fe-N-C composite catalyst was developed to optimize the d-band center and enhance the interfacial charge transfer, showing excellent onset potential and half-wave potential in neutral electrolyte, along with significant antibacterial activity, leading to improved maximum power density in MFC.
Article
Chemistry, Physical
Shuxian Di, Chen Guo, Yajie Dai, Fanghui Wang, Zhiqian Wang, Hong Zhu
Summary: A strategy for preparing nitrogen-doped porous carbon (NPC-Co) using a dual-template method is reported. PtCo metal nanoparticles (NPs) were added to develop a catalyst (PtCo/NPC-Co) with high catalytic performance for the oxygen reduction reaction (ORR). Polydopamine was selected as the carbon and nitrogen source because it can complex metals, encapsulate templates, and reduce metals. By using ZnO and Co NPs as a double template, a carrier (NPC-Co) with a high mesoporous ratio and high N content was obtained. The interaction effect between NPC-Co and PtCo NPs enhanced the overall electrocatalytic performance of PtCo/NPC-Co, which exhibited excellent catalytic performance and durability for oxygen reduction.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Linzhe Huang, Kengqiang Zhong, Hongguo Zhang, Guoqing Wu, Ruoyun Yang, Dongjiao Lin, Samuel Raj Babu Arulmani, Xianjie Liu, Lei Huang, Jia Yan
Summary: This study developed a facile and extensible method to synthesize efficient oxygen reduction reaction (ORR) catalyst NS@UiO-66, which exhibits excellent stability and active sites, thus improving the performance of microbial fuel cells (MFCs). The synergistic effect of nitrogen and sulfur in NS@UiO-66 reduces the reaction barrier and accelerates the ORR process. NS@UiO-66 has the potential to replace commercial Pt/C catalysts, promoting the scaling-up production and application of MFCs due to its low-cost elements doping and easy synthesis method.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Hong Zhu, Yajie Dai, Shuxian Di, Lin Tian, Fanghui Wang, Zhiqian Wang, Yanghui Lu
Summary: The research focuses on synthesizing low-loading Pt-based catalysts with high stability and excellent catalytic performance for proton exchange membrane fuel cells. In this study, Cu is incorporated into a Co-based zeolitic imidazolate framework (ZIF) to form a carrier, and an N-doped low Pt-loading PtCuCo/NC alloy catalyst is synthesized. The incorporation of Cu forms more metal-N bonds and increases the N-doping content, while the porous structure of ZIF allows better dispersion of Pt/Pt alloy particles and exposes more active sites for the oxygen reduction reaction. PtCuCo/NC exhibits good catalytic activity and superior performance in electrochemical and single-cell tests. This study provides a new idea for improving Pt-based fuel cell catalysts.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Biophysics
Jianting Liu, Changshun Chu, Liling Wei, Jiejie Feng, Jianquan Shen
Summary: Fe/Co-decorated nitrogen-rich three-dimensional layer-stacked porous biochar (Fe/Co-NC-x) has been synthesized from silk gel, which exhibits excellent ORR performance and can be a prospective catalyst in the practical application of fuel cells and other energy devices.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Environmental Sciences
Simran Kaur Dhillon, Amit Chaturvedi, Divyani Gupta, Tharamani C. Nagaiah, Patit Paban Kundu
Summary: Microbial fuel cells (SC-MFCs) are green energy devices that address energy and environmental crises. The application of this technology is hindered by slow oxygen reduction reaction (ORR) kinetics. Copper-nitrogen-carbon (Cu/NC) electrocatalysts exhibit satisfactory ORR activity and superior stability for long-term operations.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Xiujun Wang, Zhangyige Kong, Jianshan Ye, Chunfeng Shao, Baitao Li
Summary: The study focused on synthesizing hollow nitrogen-doped carbon nanospheres (HNCNS) using silica-coated carbon nanospheres (CNS@SiO2) as a sacrificial template. HNCNS showed enhanced ORR activity compared to solid carbon and silica spheres, with the optimal catalyst HNCNS-1000 exhibiting the highest activity in neutral media. Single chamber MFC (SCMFC) with HNCNS-1000 cathode demonstrated comparable activity to a Pt/C reference, with high power generation, stability, COD removal, and CE. The results indicated that HNCNS-1000 is a cost-effective alternative to commercial Pt/C catalyst for practical application in MFCs treating wastewater.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Physical
Yi Dai, Han Li, Yan Wang, Kengqiang Zhong, Hongguo Zhang, Jianxin Yu, Zhongyi Huang, Jia Yan, Lei Huang, Xianjie Liu, Yi Lu, Tao Xu, Minhua Su
Summary: The novel cathode catalyst CaFe0.7Zn0.3O3, a Zn-doped perovskite oxide, exhibits superior oxygen reduction reaction performance in microbial fuel cells, with better stability and corrosion resistance compared to Pt/C catalyst. The power density of CaFe0.7Zn0.3O3 is comparable to that of Pt/C, demonstrating its potential as a cost-effective and high-performance cathode catalyst.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Xueli Zhang, Zhiyuan Lin, Bolong Liang, Ming Zhong, Mingtao Zhang, Kexun Li, Hao Wang, Cuicui Lv
Summary: A method of preparing porous iron-nitrogen-doped carbon nanospheres using an inexpensive zinc-iron Prussian blue analogue as the precursor was proposed in this study, which significantly improves the performance of activated carbon air-cathode microbial fuel cells.
JOURNAL OF POWER SOURCES
(2021)
Article
Nanoscience & Nanotechnology
Simran Kaur Dhillon, Patit Paban Kundu
Summary: The performance of microbial fuel cells (MFCs) can be enhanced by synthesizing a composite material of magnesium cobaltite embedded in nitrogen-doped carbon. The composite serves as an air cathode and demonstrates superior power output compared to traditional catalysts.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Environmental Sciences
Zhao Yang, Xiao-bo Gong, Lin Peng, Dan Yang, Yong Liu
Article
Chemistry, Physical
Xiao-bo Gong, Zhao Yang, Lin Peng, An-lan Zhou, Yan-lan Liu, Yong Liu
JOURNAL OF POWER SOURCES
(2018)
Article
Chemistry, Multidisciplinary
Lin Peng, Xiaobo Gong, Xinghong Wang, Zhao Yang, Yong Liu
Article
Engineering, Environmental
Danfeng Zhang, Bingqing Wang, Xiaobo Gong, Zhao Yang, Yong Liu
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Engineering, Chemical
Yanlan Liu, Xiaobo Gong, Wenjing Yang, Bingqing Wang, Zhao Yang, Yong Liu
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Article
Environmental Sciences
Ni Tan, Zhao Yang, Xiao-bo Gong, Zhen-ran Wang, Tao Fu, Yong Liu
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Biochemistry & Molecular Biology
Xinghong Wang, Xiaobo Gong, Lin Peng, Zhao Yang, Yong Liu
BIOELECTROCHEMISTRY
(2019)
Article
Environmental Sciences
Xiaobo Gong, Yanlan Liu, Bingqing Wang, Wenjing Yang, Lu Fan, Yong Liu
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Energy & Fuels
Liu Chen, Jinling Xie, Li Huang, Xiaobo Gong
Summary: Despite the challenge of treating organic dye wastewater, bioelectrochemical systems are gaining attention for their ecofriendly and low-consumption treatment. This study used a porous CZIF-8/Fe3O4 composite as a bioelectro-Fenton catalyst in a microbial fuel cell-combined electron-Fenton system. The catalyst enabled in situ H2O2 generation and center dot OH production for dye degradation. The MFC-EF system achieved high degradation efficiency and stability. This research provides a novel strategy for simultaneous energy recovery and pollutant degradation in a microbial fuel cell-combined electron-Fenton system.
Review
Engineering, Environmental
Xiaobo Gong, Lingrui Zhang, Yong Liu, Meng Zhu
Summary: Oil/water separation is crucial for environmental protection, and ZIF-8 has attracted attention for its superhydrophobic properties and adjustable porosity. This review focuses on recent innovations in superhydrophobic methods for ZIF-8-based materials in oil/water separation, discussing fabrication strategies and applications of ZIF-8-based membranes and foams.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Xinghong Wang, Xiaobo Gong, Liu Chen, Siyu Li, Jinlin Xie, Yong Liu
Summary: The study focuses on utilizing transition metal oxides and silver in combination with MXene to catalyze the oxygen reduction reaction, leading to enhanced catalytic performance and significantly increased maximum power density in MFCs.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Zhao Yang, Xiaobo Gong, Bingqing Wang, Dan Yang, Tao Fu, Yong Liu