Review
Chemistry, Applied
Hazrul Adzfar Shabri, Mohd Hafiz Dzarfan Othman, Mohamad Azuwa Mohamed, Tonni Agustiono Kurniawan, Siti Munira Jamil
Summary: Solid oxide fuel cells (SOFCs) utilizing hydrocarbon fuels like methane can encounter carbon deposition issues, which can be mitigated by using alloy metals and combining ceramic components with oxygen carriers to enhance carbon deposition tolerance.
FUEL PROCESSING TECHNOLOGY
(2021)
Review
Chemistry, Physical
Panpan Zhang, Zhibin Yang, Yiqian Jin, Changlei Liu, Ze Lei, Fanglin Chen, Suping Peng
Summary: Solid oxide fuel cell (SOFC) is an energy conversion device that can directly convert the chemical energy of carbonaceous fuels into electricity. Addressing carbon deposition in traditional nickel-based anodes is crucial for improving SOFC performance. Although alternative anode materials have shown progress, nickel-based anodes remain the most promising for commercializing SOFC due to their superior catalytic activity for carbonaceous fuels.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Chi-Yeong Ahn, Sun Young Kang, Hyuck Jae Choi, Ok-Hee Kim, Yung-Eun Sung, Yong-Hun Cho
Summary: The degradation of electrodes in a polymer electrolyte membrane fuel cell (PEMFC) can lead to cell reversal, where a reverse voltage is generated when hydrogen supply is disrupted. Adding iridium oxide (IrO2) particles to the anode can prevent this phenomenon and improve the stability and lifespan of the fuel cell.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Xiao Yang, Minjian Ma, Chunming Xu, Rongzheng Ren, Jinshuo Qiao, Wang Sun, Kening Sun, Zhenhua Wang
Summary: HDCFCs have advantages in converting chemical energy from organic waste, biomass, and coal into clean energy, but are limited by sluggish anode reaction kinetics. This study proposes an effective design strategy for a Cu-doped SFCM anode, demonstrating improved catalytic activity and peak power density.
JOURNAL OF POWER SOURCES
(2022)
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
Yu-Wen Chen, Han-Gen Chen, Man-Yin Lo, Yan-Chih Chen
Summary: Using H2O2 to modify carbon black can increase the amount of functional groups on the surface, thereby increasing the metal dispersion and decreasing metal particle size. NaH2PO2 as a reducing agent can suppress the growth of metal particles. The best modified carbon black catalyst is the one modified with 30% H2O2, and the methanol oxidation activity of the catalyst is mainly related to the particle size of PtRu metal, rather than the surface area and conductivity of carbon black.
Article
Chemistry, Physical
Elena G. Kalinina, Darya S. Rusakova, Kirill S. Shubin, Larisa V. Ermakova, Elena Yu. Pikalova
Summary: This study investigates the direct electrophoretic deposition (EPD) of thin-film Ce0.8Sm0.2O1.9 (SDC) electrolyte on porous nonconductive NiO-BaCe0.8Sm0.2O3 (BCS) and NiO-SDC substrates. The addition of Co3O4, TiO2, and Al2O3 oxides in the suspensions improves the electrolyte sintering. The introduction of nanosized SDC powder into the suspensions achieves high zeta potential values for stable deposition. Dense composite electrolyte membranes are obtained after sintering, and the influence of sintering additives on the electrical properties of the films are studied.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Energy & Fuels
Nur Ain Masleeza Harun, Norazuwana Shaari, Zatil Amali Che Ramli
Summary: Fuel cells are the most promising alternative green and clean energy source in the future due to their low carbon emissions. Researchers have made efforts to develop materials that can reduce the cost of fuel cells. Graphitic carbon nitride (g-C3N4) is frequently mentioned in fuel cell applications because of its unique features.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Kang Xu, Feng Zhu, Mingyang Hou, Canan Li, Hua Zhang, Yu Chen
Summary: Coating the surface of a nickel-based anode with cerium oxide nanoparticles can activate and stabilize ammonia fuel, leading to improved efficiency and durability of solid oxide fuel cells.
Article
Chemistry, Physical
Kang Xu, Feng Zhu, Mingyang Hou, Canan Li, Hua Zhang, Yu Chen
Summary: This study reports on the surface activation and stabilization of a Ni-based cermet anode for efficient and durable operation on ammonia fuel. The surface coating of CeO2-delta nanoparticles significantly enhances the reaction activity and stability, leading to improved performance compared to bare anodes.
Article
Chemistry, Physical
Jinwook Kim, Yoonseok Choi, Dae-Kwang Lim, JeongDo Yoo, Han Gil Seo, Seunghyun Kim, Sangwoo Kim, WooChul Jung
Summary: By coating a highly porous ceria layer uniformly decorated with Ni nanoparticles over a Ni-YSZ anode, the severe carbon deposition challenge in solid oxide fuel cells can be addressed. The resulting nanocomposite coatings exhibit excellent catalytic activity and stability, enhancing the performance and reliability of the anode.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Review
Chemistry, Physical
Ermete Antolini
Summary: In order to improve the contact between the electrolyte and carbon fuel in SO-DCFCs, molten metals and molten salts were used in the anode chamber. The molten medium not only allows the transportation of oxygen ions to oxidize the carbon particles, but also serves as a redox mediator to enhance the kinetics of the electrochemical oxidation of carbon. Additionally, using a liquid metal/salt anode can mitigate the negative effects of carbon contaminants on cell performance.
Article
Chemistry, Physical
Mauro Andre Dresch, Bruno Ribeiro Matos, Denis Ricardo Martins Godoi, Marcelo Linardi, Fabio Coral Fonseca, Hebe de las Mercedes Villullas, Elisabete Inacio Santiago
Summary: Research has shown that by optimizing both electrode and electrolyte materials, DEFCs operating at 130 degrees Celsius exhibited a threefold increase in performance compared to standard commercially available materials.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Chemical
Mumin Rao, Mingfei Li, Zhengpeng Chen, Kai Xiong, Hui Huang, Weiguo Yang, Yihan Ling, Chuangting Chen, Zongming Zhang, Bin Lin
Summary: This study utilizes a nickel-doped perovskite material to design an exsolution system and evaluate its application as a reforming catalyst in direct carbon dioxide-methane solid oxide fuel cells (SOFCs). Results show that the exsolution system effectively releases alloy nanoparticles from the material through a reducing atmosphere, providing abundant active sites for the reforming reaction. Fuel cells using the LSCFN-GDC composite reforming catalyst achieve peak power densities of 686.05 and 684.83 mW.cm(-2) at 800 degrees C, and the dry reforming of CH4-CO2 is sustained for 100 hours at 700 degrees C. These findings demonstrate that an additional dry reforming catalyst is an effective strategy for manipulating CH4-CO2 reforming and improving electrochemical performance for energy purposes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Li Yang, Wang Xian, Liu Jie, Jin Zhao, Liu Changpeng, Ge Junjie, Xing Wei
Summary: This study investigated the effect of Nafion ionomer content on the structure and catalytic performance of direct CO polymer electrolyte membrane fuel cells (CO-PEMFCs). The results showed that the ionic plaque and roughness of the anode catalyst layers increased with increasing Nafion ionomer content. Additionally, the hydrophilicity of the anode catalyst layers also increased. However, when the Nafion ionomer content was too low or too high, it affected the conductivity and mass transfer.
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
(2022)
Article
Chemistry, Applied
Linhao Yu, Hong Chen, Yingying Li, Zhe Wen, Yongdan Li
Summary: In this study, metallic cobalt supported on nitrogen-doped carbon material was used as an efficient catalyst for the oxidative esterification of 5-hydroxymethylfurfural (HMF) to furan-2,5-dimethylcarboxylate (FDMC). The carbonization temperature had a significant impact on the morphology and structure of Co/N-C samples. Co/ N-C calcined at 900 degrees Celsius showed the best catalytic performance, with a 73.8% FDMC yield at a 91.7% HMF conversion rate measured at 130 degrees Celsius for 20 hours with K2CO3 under 1 MPa O-2. The catalytic activity of Co/N-C was enhanced by the synergistic effect between metallic cobalt and nitrogen-doped carbon material. A reaction mechanism for FDMC formation was proposed.
Editorial Material
Chemistry, Applied
Zhaofu Fei, De Chen, Emiel J. M. Hensen, Yongdan Li, Rajenahally Jagadeesh
Article
Engineering, Environmental
Huawang Zhao, Xiaoyin Chen, Alexander J. Hill, Guohua Jing, Yongdan Li, Johannes W. Schwank
Summary: Pd/SSZ-13 catalysts were investigated for the simultaneous storage of NO and C3H6 at 100 degrees C. The effects of the state of Pd species on co-adsorption and release were studied under simulated exhaust conditions. The results showed that the NO storage capacity at 100 degrees C was enhanced by simultaneous NO + C3H6 adsorption. DRIFTs results showed that Pd2+ provides the adsorption sites for NO + C3H6 to form Pd2+(NO) (C3H6), which alleviates the inhibition effect of H2O on NO adsorption on Pd ions. The different release behaviors of NO + C3H6 are discussed based on the chemistry of NO and C3H6 adsorption and the effect of intermediate CO.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Qianyuan Qiu, Zheng-Ze Pan, Penghui Yao, Jiashu Yuan, Chun Xia, Yicheng Zhao, Yongdan Li
Summary: A bi-functional catalytic perovskite LaNi0.5Co0.5O3 (LNCO) is utilized as the cathode in a high-efficiency Li-O2 battery with a molten nitrate salt electrolyte at 160 degrees C. This LNCO cathode exhibits stable low charge-discharge overpotential and high energy efficiency over 100 cycles. The discharge product, Li2O, has a porous and fluffy morphology, facilitating the transfer of oxygen and other intermediate species. Li2O as a discharge product enables a higher theoretical specific energy density compared to Li2O2 in ambient temperature Li-O2 batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Tian Gan, Hexuan Song, Xinqiang Fan, Ye Liu, Shouqing Liu, Yicheng Zhao, Yongdan Li
Summary: A Sn-doped Ce0.8Sm0.2O2_delta (SDC) supported Sn-Ni alloy anode was designed and prepared through a dual-modification strategy. The substitution of Sn improved the mobility of lattice oxygen in SDC, and Sn exsolves from the oxide phase to form intermetallic compounds with Ni after reduction. The composite anode showed unprecedented activity in the electrochemical oxidation of H2 and CH3OH, with high power densities achieved using these fuels. This work opens a new path for the design of high-performance SOFC anodes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Xuelan Hou, Yicheng Zhao, Yongdan Li
Summary: The construction of Z-scheme graphitic carbon nitride-titanium dioxide nanotubes (C3N4-TNT) is beneficial for optimizing the band structure and improving the efficiency of photoelectrochemical water splitting cells. However, the narrow operating potential window of 0-1.23 VRHE limits the understanding of the C3N4-TNT electrode. This study applied a broader potential window of -0.5-2.5 VRHE to analyze the effect of external electrons and simulated sunlight on C3N4-TNT@Ti, revealing enhanced photocurrent density and potential for advanced water oxidation/reduction.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Biochemistry & Molecular Biology
Huanghao Ning, Yongdan Li, Cuijuan Zhang
Summary: Reducing CO2 emissions and converting it into valuable chemicals is important, and integrating the capture and utilization processes is a feasible option to reduce transportation costs.
Article
Chemistry, Multidisciplinary
Jie Zheng, Rui Xia, Congli Sun, Najma Yaqoob, Qianyuan Qiu, Liping Zhong, Yongdan Li, Payam Kaghazchi, Kangning Zhao, Johan E. ten Elshof, Mark Huijben
Summary: Fast and durable lithium storage in entropy-stabilized Fe0.4Ti1.6Nb10O28.8 (FTNO) is achieved by tuning entropy via Fe substitution. Increasing the entropy leads to reduced grain size and a shorter Li+ pathway along diffusion channels. The increased entropy also stabilizes the lithium intercalation channel by decreasing expansion along the a-axis.
Article
Chemistry, Multidisciplinary
Shibo Yuan, Peng Bai, Yi He, Jiafa Chen, Yicheng Zhao, Yongdan Li
Summary: Photocatalytic N-formylation of amines with CO2 is achieved using a black TiO2-supported Cu photocatalyst prepared through a solvothermal method. Reduction with H-2 results in the formation of Cu nanoparticles and oxygen vacancies on the surface of the photocatalyst, enhancing the photocatalytic activity. A 100% conversion and an 81% yield of N-methylformanilide are achieved after 9 hours of radiation. The amount of NaBH4 and the pressure of CO2 significantly affect the activity and selectivity of the photocatalytic process.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Applied
Qianyuan Qiu, Jilan Long, Penghui Yao, Jiaqi Wang, Xiang Li, Zheng-Ze Pan, Yicheng Zhao, Yongdan Li
Summary: Lithium oxygen battery (LOB) is a promising energy storage device for electric vehicles due to its high energy density, but its electrochemical performances are unsatisfactory. This article reviews the recent progress in cathode materials and reaction mechanism of LOBs. The principles and requirements for cathode materials are discussed, and the performance of LOBs with different cathode materials is described. Approaches to improve cathode performance and research trends on cathode catalyst are proposed.
Article
Materials Science, Ceramics
Zhi Yang, Jian Zhang, Bingxue Wu, Xin Zhao, Xuanlin Lu, Yicheng Zhao, Yongdan Li
Summary: A cobalt-free composite cathode composed of La0.6Sr0.4FeO3-& delta; phase and La1.2Sr0.8NiO4+& delta; phase was synthesized using self-assembly technology. The composite cathode exhibited excellent oxygen activity, electrical conductivity, and ionic conductivity, leading to the lowest polarization resistances at 700 degrees C in oxygen and air. The one-pot synthesized nanocomposite is a promising cathode material for protonic ceramic fuel cells.
CERAMICS INTERNATIONAL
(2023)
Article
Multidisciplinary Sciences
Mingze Yang, Anna Lenarda, Sana Frindy, Yushuai Sang, Valtteri Oksanen, Adriano Bolognani, Lisa Hendrickx, Juho Helaja, Yongdan Li
Summary: This study investigates a metal-free route to synthesize biphenyls using a carbon catalyst, demonstrating that air-oxidized active carbon exhibits the best activity and the catalyst is highly recyclable. The mechanism of the reaction is proposed to be based on the redox cycle of the quinoidic groups on the carbon surface, and the addition of a catalytic acid is found to accelerate the reaction.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Multidisciplinary
Jinze Wu, Hui Liu, Yongdan Li, Cuijuan Zhang
Summary: Amorphous BiOx, prepared on the surface of NASICON electrolyte using the photochemical metal-organic deposition method, can greatly enhance the interfacial properties at the anode side. The Na symmetric cell operates at a critical current density of 1.2 mA cm(-2) and cycles steadily at 0.5 mA cm(-2) for 1000 h at 30 °C.
CHEMICAL COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Najla Grioui, Amal Elleuch, Kamel Halouani, Yongdan Li
Summary: This study investigates the feasibility of using exhausted olive pomace biochar as a fuel in a direct carbon fuel cell. The results confirm the feasibility, with a maximum power density of 10 mW cm(-2) at 700 degrees C. The limited output of the fuel cell is attributed to the high ash content and low volatile matter content of the biochar.
C-JOURNAL OF CARBON RESEARCH
(2023)
Article
Chemistry, Physical
Qianyuan Qiu, Jiaqi Wang, Penghui Yao, Yongdan Li
Summary: In this study, a facile coprecipitation approach was used to synthesize a LaNi0.5Co0.5O3 perovskite oxide with a low annealing temperature, which was then utilized as the cathode material for a lithium-oxygen battery. The assembled battery exhibited superior electrochemical performance and stable operation.
FARADAY DISCUSSIONS
(2023)
