Article
Engineering, Chemical
Bingbing Fan, He Wang, Yonghong Li, Yanmei Zhou
Summary: Nitrogen and sulfur co-doped hierarchical porous carbon spheres were synthesized through hydrothermal carbonization, with diverse morphology changes observed under different conditions. The NSHCS electrode exhibited high specific capacitance due to its specific surface area, heteroatom doping, and porous structure. Furthermore, the assembled symmetrical super-capacitor showed different energy densities in different electrolytes.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Chemistry, Multidisciplinary
Manli Hua, Jinliang Song, Xin Huang, Huizhen Liu, Honglei Fan, Weitao Wang, Zhenhong He, Zhaotie Liu, Buxing Han
Summary: The study introduces a promising strategy for cyanide-free synthesis of organic nitriles through oxidative cyanation of aldehydes using a designed Se,S,N-tri-doped carbon nanosheets catalyst. The catalyst demonstrated high selectivity and efficiency, attributed to the synergistic effect between different elements in the catalyst and its hierarchically porous structure. This metal-free catalyst is capable of tolerating other oxidizable groups while maintaining high selectivity in the reaction process.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Applied
Fatemeh Sabour, Firouzeh Nemati, Yalda Rangraz
Summary: Silver nanoparticles supported on selenium and nitrogen co-doped mesoporous carbon were synthesized and used as an efficient heterogeneous nanocatalyst for the hydrogenation of nitroaromatics in aqueous solution. The catalyst showed good activity and selectivity and could be reused multiple times without significant decline.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Energy & Fuels
Zhixin Ge, Lei Jiang, Fenghao Liang, Zhe Zhang, Daoning Wu, Wenkai Ye, Ning Han, Yichuan Rui, Wei Zhang, Bohejin Tang
Summary: This study introduces nitrogen-doped Ag-based metal-organic gels (Ag-MOGs) in lithium ion batteries (LIBs) for the first time, demonstrating good electrochemical performances. The Co3O4 nanoparticles with smaller sizes (10-15 nm) on the surface of Ag-C exhibit excellent electrochemical performance due to the good conductivity of silver particles and the nitrogen doping of Ag-C.
Article
Chemistry, Physical
Kezheng Shang, Yangjie Liu, Pingwei Cai, Kangkang Li, Zhenhai Wen
Summary: In this study, a hierarchical porous carbon sphere (HPCS) co-doped with N, P and S is developed, which features a three-dimensional porous frame structure to enhance conductivity and provide fast kinetics and short mass transfer pathways. The Zn-ion hybrid capacitors (ZIHCs) using HPCS-900 as the cathode material exhibit high capacity, excellent energy density and power density. The HPCS-900 also shows high stability with a capacity retention of 95.24% after 30,000 cycles.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Engineering, Environmental
Yingjie He, Sikpaam Issaka Alhassan, Wenchao Zhang, Lanjing Hou, Xinzhu Chen, Xiaorui Li, Bichao Wu, Yixian Zhao, Linfeng Jin, Lei Huang, Haiying Wang
Summary: N-doped carbon materials are effective in removing Cr(VI) with high removal capacity and a removal rate of 100%. The role of N species in this process, mainly distributed by pyridinic-N and oxidized-N, has been revealed through density functional theory calculations. This study demonstrates that N species play a crucial part in enhancing the removal efficiency of carbon materials in the removal of Cr(VI).
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Electrochemistry
Guang Li, Kuang Sheng, Yu Lei, Feng Zhang, Juan Yang, Tianjing Wu, Liping Zheng, Xianyou Wang
Summary: Transition metal sulfides are considered as candidate oxygen redox catalysts due to their high catalytic activity and reversible redox performance. This study successfully synthesized Co9S8-FeCoS2 two-phase nanoparticles anchored in carbon spheres, which exhibited excellent catalytic performance and stability. This work provides an important approach to prepare highly efficient and stable dual-transition metal sulfide-modified carbon-based catalysts for oxygen reduction and oxygen evolution reactions.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Engineering, Chemical
Jinqiang Liu, Jiao Zhao, Ximing Deng, Yan Sun, Sarah Imhanria, Wei Wang
Summary: The study introduces a non-noble Sn, N co-doped porous carbon catalyst for electrocatalytic reduction of CO2 into syngas (CO and H2 mixture), providing a cheap, stable, and efficient route for syngas production. By adjusting the reduction potentials, the H2 / CO ratio of the generated syngas can be tuned, offering a new approach for CO2 recycling.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Energy & Fuels
Ariharan Arjunan, Shanmugam Ramasamy, Jiwon Kim, Sung-Kon Kim
Summary: The study describes the synthesis of cobalt oxide-embedded nitrogen-doped porous carbon spheres (Co3O4@NPCS) with hierarchical structures. The material exhibits porous spherical carbon with nitrogen functionalities and Co3O4 nanoparticles on the carbon framework's surface. A hybrid supercapacitor (HSC) is fabricated using Co3O4@NPCS and NPCS as anode and cathode with aqueous KOH as the electrolyte. The HSC shows excellent electrochemical performance with a large capacitance, high energy, and power, as well as long cyclic stability and high coulombic efficiency. First principles investigations reveal that the improved performance is attributed to increased conductivity and charge transfer. The proposed electrode and hybrid design hold potential for future high-energy storage applications.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Biochemistry & Molecular Biology
Yuanjie Xiong, Yuan Wang, Housheng Jiang, Shaojun Yuan
Summary: A novel N rich porous carbon was prepared by in-situ chemical oxidation polyaniline (PANI) on a surface of multi-walled carbon nanotubes (MWCNTs) and then activated with KOH. The obtained adsorbent showed enhanced CO2 capture capability and good stability, making it a promising material for carbon capture applications.
Article
Energy & Fuels
Lantao Liu, Baopan Du, Ran Liu, Xiaohong Chen, Huaihe Song
Summary: In this study, Znchitosan aerogels were successfully synthesized and further carbonized to obtain NHPC aerogels. Zn ions acted as activators and soft templates to fabricate hierarchical porous structures in a carbon matrix. The structure and morphology of NHPC could be controlled by adjusting the ratio of zinc-chitosan complexes. The optimal NHPC showed excellent capacity and cycle stability in three-electrode systems, and high energy density and power density in two-electrode systems.
Article
Chemistry, Physical
Qiong Lu, Jing An, Yandong Duan, Qingzhi Luo, Rong Yin, Xueyan Li, Chengchun Tang, Desong Wang
Summary: A strategy to prepare Ag/p-BNNS nanocatalyst was developed by in-situ thermal decomposition of AgNO3, resulting in Ag/p-BNNS-Air exhibiting significantly enhanced catalytic performance compared to other samples, attributed to the synergistic effect between Ag nanoparticles and B-O bonds of p-BNNS.
JOURNAL OF CATALYSIS
(2021)
Article
Nanoscience & Nanotechnology
Rui Sui, Jiajing Pei, Jinjie Fang, Xuejiang Zhang, Yufeng Zhang, Feijun Wei, Wenxing Chen, Zheng Hu, Shi Hu, Wei Zhu, Zhongbin Zhuang
Summary: This study presents an efficient CO2RR electrocatalyst with high CO Faradaic efficiency and selectivity at an ultralow overpotential, achieved by tuning the active center at an atomic level. This work offers significant inspiration for boosting the CO2RR process towards carbon cycling.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Jing Zhang, Lianghao Song, Chenfei Zhao, Xiuping Yin, Yufeng Zhao
Summary: The Co and N co-doped carbon catalyst (Co-NC) shows excellent oxygen reduction reaction (ORR) activity and long-term stability due to its unique porous structure, high nitrogen content, and good electrical conductivity.
NEW CARBON MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Shali Lin, Xiaohu Mi, Lei Xi, Jinping Li, Lei Yan, Zhengkun Fu, Hairong Zheng
Summary: A Ag-nanoparticles-doped porous ZnO photocatalyst has been prepared and tested for its catalytic activity towards 4-nitrophenol. The heterostructure photocatalyst shows excellent catalytic performance due to the synergetic effect of Ag nanoparticles and porous ZnO.
Article
Biochemistry & Molecular Biology
Saman Sayebani, Hossein Eshghi, Maryam Naeimabadi
Summary: A new and diverse route has been developed for synthesis of novel pyrrole derivatives using azomethine ylides. The azomethine ylides are produced via C-H activation and then reacted with olefins to form pyrrole derivatives. This synthetic method shows moderate to excellent yields in experiments.
MOLECULAR DIVERSITY
(2022)
Article
Chemistry, Physical
Morteza Imanpour, Kamran Lamei, Hossein Eshghi
Summary: In this study, graphene oxide was modified with a 1,1'-((ethane-1,2-diylbis(oxy))bis(ethane-2,1-diyl))bis(3-(3-(triethoxysilyl)propyl)-1H-Imidazol-3-ium) chloride ionic liquid to immobilize copper species and form a catalyst. The catalyst showed efficient activity in the reaction between phenols and aryl halides and could be used multiple times.
Article
Chemistry, Multidisciplinary
Parvin Sanati-Tirgan, Hossein Eshghi, Arezou Mohammadinezhad
Summary: In this study, a novel eco-friendly and inexpensive method for the synthesis of 4(3H)-quinazolinones using magnetically separable bimetallic Fe3O4-MAA@Co-MOF@Cu-MOF NPs as catalysts was reported. This is the first example of integrating two different types of MOFs with different metal ions. The structural and compositional features of the synthesized nanocatalyst were analyzed using various spectroscopic and microscopic techniques.
Article
Chemistry, Inorganic & Nuclear
Maryam Abasian, Rahele Zhiani, Alireza Motavalizadehkakhky, Hossein Eshghi, Jamshid Mehrzad
Summary: A green and cost-effective method for reducing CO2 to synthesize formate salts using nanosized polyoxomolybdate caprate [Mo368] supported by cellulose inter-dendritic fibrous nanosilica (DFNS) was reported. The cellulose acted as a substrate to control metal leaching and the products were easily isolated from the catalyst. The experimental results confirmed the role of sodium polyoxomolybdate in the hydrogenation of CO2.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Ehsan Khoshkalam, Amir Fotovat, Akram Halajnia, Hossein Kazemian, Hossein Eshghi
Summary: This research studied the stability and reactivity of green iron oxide nanoparticles (EL-Fe NPs) synthesized from Eucalyptus globulus leaf extract in removing NO3- ions from polluted water. Various characterization techniques were used to analyze the EL-Fe NPs, and the effect of different factors such as contact time, pH, KCl salt, and anions on the adsorption of NO3- by EL-Fe NPs was evaluated. The results showed that EL-Fe NPs had irregular nano-particulate structures and exhibited strong adsorption capacity for NO3- at certain conditions, but the adsorption was influenced by pH, salt concentration, and the presence of phosphate ions.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Applied
Hossein Torabi, Kamran Lamei, Hossein Eshghi, Ali Hafizi
Summary: In this study, a successful strategy for generating palladium nanoparticles on porous P-doped carbon spheres with a high surface area was reported. The synthesized Pd/P-CS was used as a catalyst for the CO2 fixation reaction with various epoxides under solvent-free conditions. The prepared Pd-0/P-CS nanocatalyst was confirmed through various analysis techniques and exhibited outstanding catalytic performance in the synthesis of cyclic carbonates under solvent-free conditions.
JOURNAL OF POROUS MATERIALS
(2023)
Article
Multidisciplinary Sciences
Sara S. E. Ghodsinia, Hossein Eshghi, Arezou Mohammadinezhad
Summary: In this study, a double-shelled periodic mesoporous organosilica nanospheres/MIL-88A-Fe (DSS/MIL-88A-Fe) composite was synthesized through a hydrothermal method. Spectroscopic and microscopic techniques were used to characterize the structural and compositional features of the composite. The integration of MOF with PMO led to a structure with a dual-shelled morphology, microporous structure, and large specific surface area. The as-prepared composite exhibited high adsorption capacity and quick adsorption time for the removal of Pb2+ from water, along with acceptable recycling and stability.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Inorganic & Nuclear
Nasrin Moeini-Eghbali, Hossein Eshghi
Summary: In this study, a new and selective nanocatalyst (Fe3O4@S-TiO2/Cu) was synthesized by incorporating sulfur heteroatoms onto Fe3O4@TiO2 substrate as a ligand to stabilize copper nanoparticles. The Fe3O4@S-TiO2/Cu nanorods were characterized using various techniques and showed high catalytic activity in preparing triazole derivatives. The nanocatalyst exhibited advantages such as high regioselectivity, short reaction times, easy separation, and recyclability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Biochemical Research Methods
Hossein Sabet-Sarvestani, Hossein Eshghi, Mohammad Izadyar, Nazanin Noroozi-Shad, Foroogh Arkan
Summary: The effective factors in the performance of Oligo (p-phenylenes) (OPPs) and Polycyclic Aromatic Hydrocarbons (PAHs) as organocatalysts in photocatalytic CO2 transformations were investigated using density functional theory calculations. The study focused on the mechanistic aspects of C-C bond formation in a coupling reaction between CO2 center dot- and amine radical. The results showed that the charge density and aromatic properties of the studied organocatalysts and rings played important roles in the kinetic aspects of the electron transfer steps.
JOURNAL OF MOLECULAR GRAPHICS & MODELLING
(2023)
Article
Chemistry, Multidisciplinary
Fahimeh Assadzadeh, Toktam Afrough, Hossein Eshghi, Hossein Sabet-Sarvestani
Summary: A convenient one-pot two-step strategy was used to synthesize a novel tricyclic compound, and its inhibitory effect against bromodomain-containing protein 4 (BRD4) was evaluated.
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Hossein Torabi, Hossein Eshghi, Sara S. E. Ghodsinia, Parvin Sanati-Tirgan
Summary: In this study, a ZnGlu MOF/SBA-16 nanocomposite was successfully synthesized and applied as a catalyst for CO2 epoxidation under solvent-free conditions. The structure of the nanocomposite was characterized using various analytical techniques. The introduction of mesoporous silica SBA-16 improved reactant diffusion and molecular accessibility, leading to efficient chemical fixation of CO2. The nanocomposite exhibited remarkable catalytic activity and could be easily separated and reused.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Parvin Moghimi, Shadi Bolourian, Ali Shiri, Hossein Eshghi, Fereshteh Hosseini, Hossein Sabet-Sarvestani
Summary: The research aims to investigate the regioselectivity and mechanism of the ring-closing reaction of hydrazine derivatives of pyrido[1,2-e]purine. The structure contains two potential nitrogen atoms as nucleophiles. Experimental results show that one nitrogen atom is a more potent nucleophile. Theoretical studies suggest that the regioselectivity is primarily controlled by the kinetic parameters of the reaction, and steric hindrance plays a significant role. Additionally, the aromaticity of the possible final products was analyzed, and it was found that more aromatic products were favored kinetically.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Fatemeh Pirani, Hossein Eshghi, S. Amin Rounaghi
Summary: In this study, Cu(0) nanoparticles supported on organo-modified montmorillonite with benzalkonium chloride (MMT-BAC@Cu(0)) were synthesized as an eco-friendly and green heterogeneous catalyst for the synthesis of 5-substituted 1H-tetrazoles in mild media. The structure of the catalyst was investigated using various techniques. The advantages of availability, low cost, non-toxicity, and biocompatibility of clay were emphasized in this nanoclay catalyst synthesis. The method offers good to excellent product yields, mild conditions, easy work-up, short reaction times, and easy reuse of the nanocatalyst.
Article
Chemistry, Multidisciplinary
Fatemeh Pirouzi, Hossein Eshghi, Hossein Sabet-Sarvestani
Summary: This study analyzed the high reactivity of 3-triflyloxybenzynes in the macrocyclization reaction with tetrahydrofuran (THF) using DFT calculations. It was discovered that the reaction proceeds via an overlooked pathway involving 1,2-dicarbene reactivity and the intermediacy of a de-aromatized cyclic allene. The stability of 1,2-dicarbene-type benzynes was determined by the pi-donation and sigma-donation abilities of the substituents. Additionally, the impact of different substituents at the C5-position on the stability of 3-triflyloxybenzynes was described for the first time.
NEW JOURNAL OF CHEMISTRY
(2023)