Article
Thermodynamics
Tabbi Wilberforce, Mohammad Ali Abdelkareem, Khaled Elsaid, A. G. Olabi, Enas Taha Sayed
Summary: This study introduces and discusses the application of carbon-based nanomaterials (CBNMs) in microbial fuel cells, including their use as anode material and cathode support catalyst or standalone non-precious catalyst. The study also emphasizes the importance of modifying carbon-based anodes to enhance stability and electroactivity.
Review
Chemistry, Physical
Jiangshan Gao, Xiaokun Dong, Qingbin Tian, Yan He
Summary: This review summarizes recent progress and developments on per-fluorinated and non-fluorinated membranes with carbon nanotubes (CNTs) as reinforced fillers in various key areas. The topics reviewed include the correlation between the mechanical stability, thermal stability, water retention capacity, and proton conductivity of different membranes with different functionalized CNTs. In addition, it presents the preparation strategies of membrane matrix and CNTs filler, as well as the reinforced mechanism of CNTs in the membrane. Furthermore, the impact of interactions between CNTs and various types of PEM is discussed to provide a deeper perspective. Finally, the strategy for improving the performance of PEM and the challenges of CNTs-based membranes are analyzed for prospects.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Neda Salarinejad, Minoo Dabiri, Siyavash Kazemi Movahed
Summary: Palladium nanoparticles have been successfully synthesized and characterized on core-double shell magnetic nitrogen-doped carbon nanotubes. These nanohybrids show excellent catalytic performance in the one-pot synthesis of imine and secondary amine.
CATALYSIS COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Ida Ziccarelli, Raffaella Mancuso, Francesco Giacalone, Carla Calabrese, Valeria La Parola, Alex De Salvo, Nicola Della Ca', Michelangelo Gruttadauria, Bartolo Gabriele
Summary: This article reports the successful heterogenization of the classical PdI(4)(2-)carbonylation catalyst on multi-walled carbon nanotubes. The newly developed heterogeneous catalyst shows good activity and recyclability in the oxidative monoaminocarbonylation reaction, with limited metal contamination in the final organic compounds.
JOURNAL OF CATALYSIS
(2022)
Review
Chemistry, Inorganic & Nuclear
Sumei Han, Caihong He, Qinbai Yun, Moying Li, Wei Chen, Wenbin Cao, Qipeng Lu
Summary: Pd-based intermetallic nanocrystals (INCs) have gained attention as electrocatalysts for fuel cells, showing outstanding catalytic activity and high stability. Research focuses on synthetic methods, morphology control, and applications in electrocatalytic reactions, with strategies to improve performance discussed.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Obeen Kwon, Seonghyeon Yang, Byung-Ho Kang, Junghyun Park, Gyutae Park, Jiwon Baek, Hyoun-Myoung Oh, Yoonho So, Sung-Hoon Park, Youngjin Jeong, Taehyun Park
Summary: Researchers have reported a new diffusion layer material, nanoporous carbon nanotube sheet, for use as the anode diffusion layer in high-temperature proton exchange membrane fuel cells (HT-PEMFC). The nanoporous structure promotes uniform gas dispersion, resulting in improved performance and durability of the fuel cells. These enhanced fuel cells outperform traditional fuel cells in two aspects.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Environmental Sciences
Roma Agrahari, Busra Bayar, Haris Nalakath Abubackar, Balendu Shekher Giri, Eldon R. Rene, Radha Rani
Summary: Microbial fuel cells are emerging technologies that convert organic waste into electricity, offering potential solutions to energy crises and eco-friendly wastewater treatment. The performance of microbial fuel cells is greatly influenced by electrode properties and biocatalysts, making electrode modification crucial for improving power generation capacity.
Article
Chemistry, Multidisciplinary
M. Zikhali, T. Matthews, C. T. Selepe, K. A. Adegoke, K. Mugadza, S. S. Gwebu, N. W. Maxakato
Summary: Palladium carbon nanotubes and palladium-niobium carbon nanotubes electro-catalysts were successfully synthesized through alcohol reduction method. The synthesized electro-catalysts were characterized using various physicochemical techniques, revealing the presence of hollow tubular structures with multi-walled carbon nanotubes and palladium-niobium nanoparticles. The electrochemical behavior of these electro-catalysts for alcohol electro-oxidation was investigated, and the palladium-niobium carbon nanotubes demonstrated superior activity and tolerance to poisoning.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Matteo Savastano, Maurizio Passaponti, Walter Giurlani, Leonardo Lari, Nicola Calisi, Estefania Delgado-Pinar, Elena Salvador Serrano, Enrique Garcia-Espana, Massimo Innocenti, Vlado K. Lazarov, Antonio Bianchi
Summary: The novel ligand H3L designed for spontaneous adsorption onto MWCNT and binding metal cations was used in the preparation of an ORR cathode catalyst based on supported Pd(II) complexes. The synthesis, solution behavior, and ORR performances of the ligand were reported, along with XPS and STEM characterization. The tripodal nature of the H3L ligand places it between macrocyclic and linear open chain ligands, allowing for meaningful comparisons.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Cyril Tlou Selepe, Sandile Surprise Gwebu, Thabo Matthews, Tebogo Abigail Mashola, Ludwe Luther Sikeyi, Memory Zikhali, Nobanathi Wendy Maxakato
Summary: Carbon nano-onions (CNOs) were successfully synthesized using flame pyrolysis, with Pd-Sn/CNOs electro-catalysts showing improved performance in methanol and ethanol electro-oxidation under alkaline conditions. The characterization techniques confirmed the structure and properties of the materials, with PdSn alloy formation on the CNO surface contributing to the enhanced catalytic activity.
Review
Green & Sustainable Science & Technology
Obeen Kwon, Junghyun Park, Gyutae Park, Seonghyeon Yang, Taehyun Park
Summary: This article summarizes the application strategies of carbon nanotubes (CNTs) in key components of fuel cells, including catalysts, polymer electrolyte membranes (PEMs), gas diffusion layers (GDLs), and bipolar plates (BPs). It also provides a summary of methods for the synthesis and mass production of CNTs, such as arc discharge, chemical vapor deposition (CVD), and laser ablation. The challenges and remarkable contributions of CNTs in fuel cells are discussed. The application of CNTs in fuel cells still holds great potential for outstanding improvements in electrochemical performance and durability.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2023)
Review
Chemistry, Physical
Quoc Tuan Phan, Kee Chun Poon, Hirotaka Sato
Summary: Research on amorphous noble metal nanoparticles as promising electrocatalysts has made significant progress with several different synthesis routes. Amorphous Pt-and Pd-based catalysts show potential for fuel cell applications due to their abundant uncoordinated active sites.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Lu Lu, Han Deng, Zhipeng Zhao, Bing Xu, Xin Sun
Summary: In this study, N-doped carbon nanotube supported Pt nanowire catalysts were successfully synthesized and their electrocatalytic activity and durability in proton exchange membrane fuel cells were investigated. The PtNW/NCNTs demonstrated better oxygen reduction reaction activity and stability, showing promise as an alternative to traditional Pt/C catalysts.
JOURNAL OF POWER SOURCES
(2022)
Article
Engineering, Multidisciplinary
Jiajia Li, Jiaqi Qian, Xiaoyu Chen, Xiaoxi Zeng, Ling Li, Bo Ouyang, Erjun Kan, Wenming Zhang
Summary: A novel Co/Ni@GC/NCNTs/CNFs nanoarchitecture with superior catalytic performance and stability was fabricated for microbial fuel cells. The catalyst remarkably enhances the performance of oxygen reduction reaction, oxygen evolution reaction and hydrogen evolution reaction.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Physical
Xiaofang Ma, He Xiao, Yang Gao, Man Zhao, Li Zhang, Junming Zhang, Jianfeng Jia, Haishun Wu
Summary: Designing efficient and stable electrocatalysts for hydrogen evolution reaction (HER) in electrochemical water splitting is a challenging task. This study presents a highly dispersed Ru NP catalyst (Ru/HMCs-500) with excellent HER stability and activity across different pH ranges. The pore size of hollow mesoporous carbon spheres (HMCs) is controlled by ammonia concentration to confine Ru NPs. The Ru/HMCs-500 exhibits significantly higher mass activities than Pt/C in acidic, basic, and neutral solutions, highlighting the potential for enhancing HER performance. The characterization results indicate that the embedded structure of Ru NPs in pores contributes to their long-term stability and activity.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Changhong Wang, Zhengyang Liu, Liuqi Dong, Feng Du, Jingsha Li, Chongjun Chen, Ruguang Ma, Changming Li, Chunxian Guo
Summary: In this study, a bimetallic CuCo nanocrystal with 2.5 at.% Co to Cu was developed, which exhibited 100% nitrate conversion rate and 95% NH3 Faradaic efficiency in neutral electrolyte. The high catalytic activity can be attributed to strong NO3- absorption and suppression of hydrogen evolution reaction.
JOURNAL OF POWER SOURCES
(2023)
Review
Chemistry, Multidisciplinary
Jiafu Qu, Songqi Li, Bailing Zhong, Zhiyuan Deng, Yinying Shu, Xiaogang Yang, Yahui Cai, Jundie Hu, Chang Ming Li
Summary: Photothermal catalysis, a new technology combining photochemistry and thermochemistry, is highly attractive in the fields of environment and energy. 2D nanomaterials have been extensively studied in photothermal catalysis due to their ultrathin layer structures, superior physical and optical properties, and high surface areas. This review summarizes the recent advances in various 2D nanomaterials and their driving forces and mechanisms in photothermal catalysis, as well as their synthesis strategies and applications in CO2 conversion, H2 production, VOCs degradation, and water purification. The challenges and prospects of future development in this field are also discussed.
Review
Chemistry, Analytical
Jianyu Yang, Shasha Lu, Bo Chen, Fangxin Hu, Changming Li, Chunxian Guo
Summary: Microbial infection poses challenges for public health, and efficient microorganism detection is crucial. However, simultaneous identification of microorganisms is difficult due to the similarities in their surface microenvironments. Machine learning assisted optical sensor arrays, based on nanomaterials, are emerging as promising analysis techniques for microorganism discrimination with high sensitivity, time-saving, and easy operation. This article discusses recent developments in machine learning assisted optical sensor arrays for microorganism identification. It covers five types of optical nanosensor arrays and eight commonly used machine learning algorithms in array-based sensors, while providing an overview of the statistical analysis principles involved. The current challenges and future perspectives are also outlined.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Review
Materials Science, Multidisciplinary
Chun-Jie Li, Guang-Cun Shan, Chun-Xian Guo, Ru-Guang Ma
Summary: In this review, the recent advances in Pd-based ORR electrocatalysts are summarized and the relationship between nanostructure and catalytic performance is analyzed. The ORR mechanism and performance indicators in both alkaline and acidic media are introduced, followed by the synthetic methods for Pd-based nanoparticles. The design strategies of efficient Pd-based ORR catalysts are emphasized, considering the composition, crystal phase, morphology, and support effects. The review concludes with possible opportunities and future prospects for Pd-based nanomaterials in ORR.
Article
Chemistry, Multidisciplinary
Yunpeng Wei, Lingya Yi, Rongfei Wang, Junying Li, Dazhi Li, Tianhao Li, Wei Sun, Weihua Hu
Summary: In this study, a ferric/molybdate co-doping strategy was reported to enhance the oxygen evolution reaction (OER) activity of Ni oxyhydroxide. The synthesized NiFeMo/NF catalyst exhibited significantly enhanced OER activity with an overpotential of only 274 mV to reach 100 mA cm(-2) in alkaline media.
Article
Chemistry, Multidisciplinary
Ge Li, Yan Zheng, Guangxuan Hu, Bo Chen, Yu Gu, Jianyu Yang, Hongbin Yang, Fangxin Hu, Changming Li, Chunxian Guo
Summary: A photoelectrochemical sensor (PEC) was designed and constructed for in vitro detection of H2O2 using atomically dispersed iron active sites (Hemin) modified graphdiyne (Fe-GDY) as the photoelectrode. The sensor exhibits high sensitivity, selectivity, and stability, and can quantify H2O2 released from different organs within a linear range of 0.1 to 48,160 μm. This PEC sensor provides a promising approach for molecular sensing and disease diagnosis at the organ level.
Article
Nanoscience & Nanotechnology
Yangbin Shen, Chunmei Zhang, Feng Du, Ting Zhang, Yulu Zhan, Hao Tian, Chang Ming Li
Summary: This study innovatively utilizes acetaldehyde as a catalyst to achieve selective hydrogen production from acetaldehyde and water. Water participates in the process of acetaldehyde decomposition, and the intermediates produced are formic acid and acetic acid. This research not only holds promise for hydrogen production from C2 organics at low temperatures but also provides scientific insights for catalytic technology for C-C bond cleavage.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Rongfei Wang, Dazhi Li, Tianhao Li, Wei Sun, Weihua Hu
Summary: Crystalline/amorphous Ru@RuP core-shell nanoparticle supported on carbon nanotube (Ru@RuP-CNT) was synthesized by controllable surface phosphatization procedure. The resulted Ru@RuP-CNT outperforms its Ru-based rivals and Pt/C catalyst in electrocatalytic hydrogen evolution reaction (HER), exhibiting a tiny overpotential of 28 mV at 10 mA cm-2 and marvelous mass activity of 3.24 A mg-1 at 50 mV overpotential in alkaline solution. The electronic interaction between metallic Ru core and amorphous RuP shell was found to tune the absorption strength of hydrogen and boost the HER activity, suggesting an effective strategy to enhance electrocatalytic performance via interfacial electronic interaction and providing insights into crystalline/amorphous heterostructured catalysts.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Review
Chemistry, Multidisciplinary
Youcun Bai, Heng Zhang, Wenhao Liang, Chong Zhu, Lijin Yan, Changming Li
Summary: Aqueous zinc ion battery (AZIBs) has attracted attention for its safety, environmental friendliness, and high ionic conductivity. However, the formation of zinc dendrites from zinc metal anodes leads to poor cycle life and safety issues. Developing zinc-metal free anode materials is crucial for the further development of AZIBs. This review introduces the working principle and development prospects of rocking-chair AZIBs, and reviews the research progress and challenges of zinc metal-free anode materials and cathode materials.
Article
Chemistry, Multidisciplinary
Chao Wu, Jinggao Wu, Juan Li, Zhuo Zou, Hong Bin Yang, Xiaoshuai Wu, Qingxin Zeng, Fangyin Dai, Wei Sun, Chang Ming Li
Summary: Materials with single-transition metal atoms dispersed in nitrogenated carbons (MNC, M = Fe, Co, and Ni) are synthesized as cathodes for Li-S batteries and studied for their electrocatalytic behaviors and enhancement mechanisms. The results show that CoNC exhibits the highest electrocatalytic activity and capacity, as well as the longest cycle life among the MNC catalysts. Theoretical calculations reveal that MNNC catalysts enable direct conversion of Li2S6 to Li2S, with CoNC having the strongest adsorption energy and the best overall performance.
Article
Chemistry, Physical
Shen Fei Zhao, Chunjie Li, Zixiang Cui, Jing Zhang, Weihua Hu, Ruguang Ma, Chang Ming Li
Summary: Room-temperature sodium-sulfur batteries have high energy density and low cost, but the presence of high-order polysulfides leads to capacity fading and low-order polysulfides have slow reaction kinetics. This study introduces microporous-mesoporous carbon derived from mangosteen peels as cathode materials, which effectively suppresses the shuttling effect of sodium polysulfides, and provides high electrical conductivity and porosity for efficient electron/ion diffusion. The obtained sodium-sulfur battery exhibits high reversible capacity, excellent long-term cycle performance, and outstanding rate performance.
ADVANCED ENERGY MATERIALS
(2023)
Article
Engineering, Environmental
Lingya Yi, Siming Xiao, Yunpeng Wei, Dazhi Li, Rongfei Wang, Shengfeng Guo, Weihua Hu
Summary: We report a free-standing FeCoNiCrMo high-entropy alloy (HEA) plate that acts as an excellent oxygen evolution reaction (OER) catalyst, showing higher activity and durability compared to the benchmarking NiFe layered double hydroxide (LDH). The HEA catalyst requires overpotentials of 303 and 372 mV to reach current densities of 100 and 700 mA cm 2, respectively, and maintains its activity for at least 120 hours in alkaline media. The enhanced OER activity of the HEA catalyst is attributed to the absorption of Mo oxoanions and the persistence of trace Cr atoms in the surficial NiFeCo oxyhydroxide phase.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemical Research Methods
Xiaoyi Li, Zhihao Feng, Changxiang Fang, Yunpeng Wei, Dandan Ji, Weihua Hu
Summary: In this study, a high-performance OIRD microarray is developed using a polymer brush grafted fluorine-doped tin oxide (FTO) as the chip substrate. The polymer brush enhances the interfacial binding reaction efficiency and the FTO-polymer brush layered structure excites the interference enhancement effect of OIRD, resulting in improved optical sensitivity. Compared to rival chips, this innovative chip achieves a significantly improved sensitivity with a limit of detection (LOD) as low as 25 ng mL(-1) for the model target C-reactive protein (CRP) in 10% human serum.
Article
Chemistry, Physical
Youcun Bai, Heng Zhang, Huijun Song, Chong Zhu, Lijin Yan, Qin Hu, Chang Ming Li
Summary: A novel stainless-steel supported lattice-mismatched V-S-Se layered compound with high selenium vacancy was synthesized by adjusting the molar ratio of sulfur to selenium. The introduction of selenium vacancies created additional redox peaks of sulfur, providing more mass transport channels and active sites for zinc ions. The specific capacity and cycle stability of the electrode were significantly improved, demonstrating great potential for practical applications and providing insights into the effects of defects on battery performance.
