Article
Chemistry, Multidisciplinary
Yi-xin Wang, Jing-hui Zhou, Jun Xiong, Wan-qi Huang, Quan Li, Xue Min, Ming Li
Summary: Two novel metal phosphonate networks based on zoledronic acid were successfully prepared and used as efficient catalysts for the conversion of CO2 gas to cyclic carbonates. The active centers of the catalyst were identified as Lewis acid sites and Bronsted acid sites in the compound structure. Furthermore, the catalyst exhibited good recyclability.
Article
Chemistry, Physical
Jianwen Lan, Ye Qu, Ping Xu, Jianmin Sun
Summary: A novel Zn-based metal-organic framework with abundant hydrogen bond donors was synthesized and demonstrated efficient CO2 conversion performance through dual activation of metal Zn sites and HBD groups. The material exhibited eco-friendly and highly efficient performance in catalytic CO2 cycloaddition reactions with epoxides.
GREEN ENERGY & ENVIRONMENT
(2021)
Article
Chemistry, Physical
Yongjing Hao, Xiuli Yan, Tao Chang, Xiaohuan Liu, Lianwei Kang, Zheng Zhu, Balaji Panchal, Shenjun Qin
Summary: The study synthesized a series of covalent organic crown-based polymers and found that one of them, COCP-OH, with hydroxyl and crown ether groups, exhibited high catalytic efficiency in cycloaddition reactions, providing a new approach for CO2 coupling reactions.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Chemistry, Applied
Jesus Tapiador, Pedro Leo, Antonio Rodriguez-Dieguez, Duane Choquesillo-Lazarte, Guillermo Calleja, Gisela Orcajo
Summary: A novel Zn-based-MOF material, Zn-URJC-8, was synthesized and found to have excellent CO2 adsorption properties and potential as a catalyst.
Article
Chemistry, Inorganic & Nuclear
Hua-Qing Yin, Ming-Yang Cui, Hao Wang, Yuan-Zhao Peng, Jia Chen, Tong-Bu Lu, Zhi-Ming Zhang
Summary: Carbon dioxide cycloaddition into fine chemicals is a promising technology for solving energy crisis and environmental issues. This study investigates the effects of metal type on the performance of CO2 cycloaddition using isostructural MOF-919-Cu-Fe and MOF-919-Cu-Al as models. The results reveal that MOF-919-Cu-Fe with exposed Fe and Cu Lewis acid sites exhibits significantly higher conversion and selectivity compared to MOF-919-Cu-Al. The mechanism suggests that the exposed Fe3+ sites facilitate the ring opening of epoxide and CO2 activation, promoting the CO2 cycloaddition reaction.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yunrui Zhang, Dong-Hui Yang, Shanlin Qiao, Bao-Hang Han
Summary: The study developed a highly efficient catalyst for CO2 cycloaddition reaction by covalently modifying ionic liquids to covalent organic frameworks and utilizing the electrostatic interaction between polyoxometalates (POMs) and ionic liquids. The catalyst showed high catalytic activity under mild conditions and retained its performance after multiple uses, attributed to the synergistic effect of ionic liquids, POMs, and COFs.
Article
Chemistry, Applied
Jesus Tapiador, Pedro Leo, Guillermo Calleja, Gisela Orcajo
Summary: This study presents a new MOF material, Zn-URJC-13, with acid and basic sites, permanent porosity, and high affinity to CO2 molecules. The Zn-URJC-13 catalyst exhibits efficient performance in CO2 cycloaddition reactions and can be reused multiple times.
Article
Chemistry, Multidisciplinary
Zheng Wang, Da Li, Shangqing Chen, Jiayin Hu, Yanxi Gong, Yafei Guo, Tianlong Deng
Summary: The green basic IL [DBUH][BO2] was synthesized for the first time and proved to be an efficient catalyst for the cycloaddition of CO2 and epoxides, with high product yields and easy recovery and reuse. The synergy between the basic anion and the cation with N-H contributed to the catalytic effects, and the IL also showed effectiveness in the reaction of CO2 and 2-aminobenzonitriles into quinazoline-2,4(1H,3H)-diones.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Energy & Fuels
Fereshteh Norouzi, Amir Abdolmaleki
Summary: A series of pyridinium-based acidic-ionic liquids (PyAILs) were synthesized as dual-functional ILs and used as catalysts for the conversion of CO2 into carbonates. Various factors affecting the reaction were investigated, and a conceivable reaction mechanism was proposed.
Article
Chemistry, Multidisciplinary
Yanxi Gong, Yifan Li, Jiayin Hu, Zheng Wang, Tianlong Deng
Summary: The study demonstrates that the acid-derived ionic liquid [DBUH](2)[Cys] containing the -S- anion can effectively catalyze the reactions of CO2 and epoxides, yielding high yields of cyclic carbonates. Moreover, [DBUH](2)[Cys] shows good recyclability, making it a promising catalyst with high catalytic performance.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Wei Hui, Xiang Wang, Xiao-Ning Li, Hai-Jun Wang, Xue-Mei He, Xin-Yi Xu
Summary: Protic ionic liquid catalysts have been synthesized for the chemical fixation of CO2, with [AlTMG]Br showing high catalytic activity for converting epoxides into cyclic carbonates under mild reaction conditions. These catalysts outperform corresponding homogeneous catalyst analogues and offer potential for pollution reduction and industrial applications.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Engineering, Chemical
Dong-Hui Lan, Kun Chen, Heng-Jun Zhu, Jing Shen, Shui-Sheng Wu, Chak-Tong Au, Bing Yi, ShuangFeng Yin
Summary: By synthesizing Lewis acid-base hexamethylenetetramine complexes with multisynergetic effects, the goal of synthesizing cyclic carbonates without solvents or cocatalysts under mild conditions was successfully achieved. The experimental results indicate that the Lewis acidity of the metal and the nucleophilicity of the anions play crucial roles in the catalytic performance.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Haonan Lin, Cheng-Hua Deng, Xiaohang Qiu, Xiao Liu, Jian-Gong Ma, Peng Cheng
Summary: Three new manganese-based metal-organic frameworks have been synthesized with modified structures for improved catalytic activity in the reaction of CO2 and epoxides towards cyclic carbonates. The structures of the Mn-MOFs are controlled by changing the anions of the manganese salts, and the catalytic activities are optimized under mild conditions.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Inorganic & Nuclear
Satarupa Das, Jinfang Zhang, Thomas W. Chamberlain, Guy J. Clarkson, Richard I. Walton
Summary: CO2 epoxidation to cyclic carbonates under mild, solvent-free conditions is a promising pathway for sustainable CO2 utilization. However, previous metal-organic frameworks (MOFs) used for this purpose are not suitable for commercial utilization due to the nonrenewable ligands used. This study presents new yttrium MOFs based on renewable 2,5-furandicarboxylate (FDC) ligands, which exhibit high catalytic activity and conversion efficiency for CO2 epoxidation reactions.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Shafiur Rehman Khan, Sandhya Saini, K. Naresh, Alka Kumari, Vineet Aniya, Praveen K. Khatri, Anjan Ray, Suman L. Jain
Summary: A novel visible light-driven catalyst-free oxidation method is described in this paper, which uses CO2 as a substrate to obtain corresponding acids and CO in both batch and flow photoreactors.
CHEMICAL COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Gongwei Tian, Yan Liu, Mei Yu, Cuiyuan Liang, Dan Yang, Jianping Huang, Qinyi Zhao, Wei Zhang, Jianhui Chen, Yu Wang, Ping Xu, Zhiyuan Liu, Dianpeng Qi
Summary: This study fabricates a strong electrostatic adhesive and applies it to stretchable neural microelectrodes to solve the problem of drift or fall of electrodes from the surface of wet and dynamic tissues. The adhesive exhibits high conformability and stretchability, and successfully records the electrophysiological signals of animals.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Coatings & Films
Han Liu, Minheng Ye, Zuoyan Ye, Lili Wang, Guowei Wang, Xianfeng Shen, Ping Xu, Chao Wang
Summary: The surface roughness of LPBF AlSi10Mg alloy was reduced through electrochemical polishing (ECP), with a novel viscous layer formation mechanism found during the ECP process. An intermittent electrochemical polishing (IECP) method was utilized to further improve the polishing quality. The significantly improved polishing effect of IECP was attributed to the constant removal of ECP products, enhancing the dissolution of Al element and promoting fluent dispersion of electrolyte in the metal-electrolyte interface.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Acoustics
Rui Zhao, Huan Jiang, Jingyan Cao, Bo Li, Lili Xu, Shaochun Dai
Summary: The aims of this study were to investigate the value of sound touch elastography (STE) in predicting axillary lymph node metastasis (ALNM) in patients with invasive breast cancer (IBC) and to explore whether lysyl oxidase (LOX) is correlated with increasing stiffness and promotion of metastasis in IBC. The study found that STE could serve as a non-invasive method for assessing lymph node status before surgery, and the maximum stiffness value and maximum shell stiffness value could be used to predict axillary lymph node metastasis of IBC. Furthermore, the overexpression of LOX and increased collagen fiber contributed to the increased stiffness in the lesions and metastases of IBC.
ULTRASOUND IN MEDICINE AND BIOLOGY
(2022)
Review
Biochemistry & Molecular Biology
Jing Hu, Adel Al-Salihy, Bin Zhang, Siwei Li, Ping Xu
Summary: This review discusses the role and development of the d-band center of materials based on iron-series metals in electrocatalytic water splitting, focusing on the impact of different composites of iron-based materials on electrocatalytic performance. The information presented can be helpful for adjusting the active centers of catalysts and improving electrochemical efficiencies in future works.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Jie Wu, Xuetao Qin, Yu Xia, Yuanyuan Zhang, Bin Zhang, Yunchen Du, Hsing-Lin Wang, Siwei Li, Ping Xu
Summary: This study demonstrates an effective strategy for reducing the surface oxidation of CoS2 and improving its catalytic performance for hydrogen evolution by introducing glued V2O5 nanoclusters.
NANOSCALE HORIZONS
(2023)
Article
Chemistry, Physical
Xiaoyu Chen, Zhi Han, Zonghao Lu, Tingting Qu, Ce Liang, Yu Wang, Bin Zhang, Xijiang Han, Ping Xu
Summary: Novel 2D-2D SnS2/CdS heterostructures are demonstrated by loading SnS2 nanosheets onto CdS nanosheets, exhibiting excellent photocatalytic hydrogen evolution activity under visible light. The highest hydrogen evolution rate is achieved on SnS2/CdS heterostructures with 35 wt% SnS2, which is approximately 6-fold higher than that of pure CdS NSs.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Engineering, Environmental
Shu-Chao Sun, Fei-Xiang Ma, Hao Jiang, Meng-Xin Chen, Ping Xu, Liang Zhen, Bo Song, Cheng-Yan Xu
Summary: Dual-phase WC-W2C nanocrystals embedded into hollow carbon dodecahedrons (WC-W2C/HCDs) exhibit competitive HER activities and durability in a wide pH range.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Ranran Liang, Bin Zhang, Yunchen Du, Xijiang Han, Siwei Li, Ping Xu
Summary: A series of Co(OH)(x)(A)(y) materials with different acidic anions were synthesized and their catalytic activity for the OER was determined. Surface oxidation and the content of highly active Co(IV) were found to be crucial parameters for the OER performance. Furthermore, the leaching ability of anions in Co(OH)(x)(A)(y) was directly related to the Co(IV) content and the catalytic activity, which can be summarized as an anion leaching-metal oxidation model. This study provides deep insights into the anion effect of metal basic salt-based OER catalysts and the activation process of pre-catalysts for the OER.
Review
Chemistry, Physical
Yuanyuan Zhang, Jie Wu, Bingrong Guo, Haohao Huo, Siqi Niu, Siwei Li, Ping Xu
Summary: Transition-metal metaphosphates (TMMPs) have been recognized as highly efficient catalysts for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in water splitting. This review summarizes the recent advances in the synthesis and applications of TMMPs, discusses the strategies for improving their catalytic activity, and explores the future opportunities and challenges in the field of electrocatalysis.
Article
Chemistry, Physical
Jianying Zhao, Yuanyuan Zhang, Yu Xia, Bin Zhang, Yunchen Du, Bo Song, Hsing-Lin Wang, Siwei Li, Ping Xu
Summary: In this study, a novel strong phosphide-metaphosphate interaction (SPmPI) was discovered in the RuP/CoNiP4O12 catalyst for efficient electrocatalytic overall water splitting. The SPmPI facilitates electron transfer and coordination environment, enabling the catalyst to achieve a low overpotential of 27 mV for hydrogen evolution reaction (HER) and effective oxygen evolution reaction (OER) for overall water splitting.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Ce Liang, Kexin Sun, Mengxin Chen, Ping Xu
Summary: This perspective introduces the promising role of two-dimensional transition-metal dichalcogenides (TMDs) in surface-enhanced Raman scattering (SERS) and discusses their fundamental properties, crystal-phase configurations, and phase transition strategies. It emphasizes the importance of crystal phase in determining the SERS effect of TMDs and highlights recent advances in phase-engineering approaches for remarkable SERS performance. By addressing current challenges and future directions in improving the crystal-phase engineering of TMDs in SERS, new insights are provided for the design and synthesis of more promising TMD-based SERS substrates.
Article
Chemistry, Applied
Mengxin Chen, Yuanyuan Zhang, Ran Wang, Bin Zhang, Bo Song, Yanchao Guan, Siwei Li, Ping Xu
Summary: Surface reconstruction of NiS2, NiSe2, and Se-NiS2 during the OER process is studied through in-situ Raman spectroscopy and ex-situ X-ray photoelectron spectroscopy. Se-NiS2 exhibits outstanding OER activity and stability in alkaline conditions, requiring an overpotential of 343 mV at a current density of 50 mA cm-2. The research provides a novel insight into the surface reconstruction and electrocatalytic mechanism of Ni-based chalcogenides.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Xiaoyu Chen, Bojing Sun, Zhi Han, Yu Wang, Xijiang Han, Ping Xu
Summary: In this study, ultrathin tungsten-doped hydrogenated TiO2 nanosheets were successfully synthesized and used for photocatalytic hydrogen production without the need for a noble metal cocatalyst. Tungsten doping not only modulates the bandgap and enhances solar absorption, but also introduces more oxygen vacancies and effectively improves the photothermal effect, leading to enhanced photocatalytic activity of the nanosheets. The hydrogen evolution rate of the tungsten-doped nanosheets can reach 338.79 mumol g(-1) h(-1) under full spectrum (AM 1.5G) illumination.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Engineering, Environmental
Jing Wang, Jing Hu, Ce Liang, Limin Chang, Yunchen Du, Xijiang Han, Jianmin Sun, Ping Xu
Summary: This study reports a phosphorus-doped monoclinic beta-CoMoO4 (P-CoMoO4) catalyst for overall water splitting in alkaline electrolyte. The reconstructed catalyst exhibits ultralow overpotentials and outstanding long-term durability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Mengxin Chen, Chuqiao Song, Ce Liang, Bin Zhang, Yanchun Sun, Siwei Li, Lili Lin, Ping Xu
Summary: In this study, we demonstrate the crystalline phase induced Raman enhancement on molybdenum carbide materials (beta-Mo2C and alpha-MoC), with the Raman enhancement on beta-Mo2C being 2-4 times higher than that on alpha-MoC. Spectroscopic and theoretical calculations reveal that beta-Mo2C has a lower electron work function and a higher density of states near the Fermi level than alpha-MoC, promoting charge transfer and photo induced charge transfer processes between probe molecules and the substrate.
INORGANIC CHEMISTRY FRONTIERS
(2022)