Article
Chemistry, Physical
Weiqi Liao, Minnan Yue, Junyi Chen, Ziwei Wang, Jieqiong Ding, Yuxing Xu, Yu Bai, Xiaochun Liu, Aiping Jia, Weixin Huang, Zhenhua Zhang
Summary: Metal-oxide interfaces of finely tuned Rh/CeO2 catalysts were employed for CO2 hydrogenation, with the catalytic activity determined by CeO2 morphologies and the product selectivity by the nature of supported Rh species. Decreased Rh particle size weakened metallicity, suppressing the Sabatier reaction and resulting in low CH4 selectivity. Conversely, an enhanced reverse water-gas shift process contributed to improved catalytic CO2 efficiency. Higher reaction temperatures led to increased CH4 selectivity at fine Rh particles, likely due to enhanced H-spillover effect.
Article
Chemistry, Physical
Weiqi Liao, Minnan Yue, Junyi Chen, Ziwei Wang, Jieqiong Ding, Yuxing Xu, Yu Bai, Xiaochun Liu, Aiping Jia, Weixin Huang, Zhenhua Zhang
Summary: Rh/CeO2 catalysts with finely tuned interfacial structures were used for CO2 hydrogenation by altering the CeO2 morphologies and Rh particle sizes. The catalytic activity is determined by the density of interfacial oxygen vacancies that vary with the CeO2 morphologies, while the product selectivity depends on the nature of supported Rh species. Decreasing Rh particle size weakens the metallicity, suppressing the Sabatier reaction and resulting in low CH4 selectivity. Enhanced reverse water-gas shift process, more easily catalyzed than the Sabatier reaction, contributes to the promotion of catalytic CO2 efficiency. CH4 selectivity increases with the rise in reaction temperature at fine Rh particles, attributed to the enhanced H-spillover effect at high temperatures. Spectroscopic results confirm CO2 hydrogenation proceeds through a redox mechanism, generating adsorbed CO intermediate that is either further hydrogenated into CH4 or desorbs directly into CO.
Article
Nanoscience & Nanotechnology
Yubo Liang, Cailing Wu, Songjie Meng, Zhansheng Lu, Runyao Zhao, Huiyong Wang, Zhimin Liu, Jianji Wang
Summary: In this study, Ag single-atom catalysts (SACs) supported on CeO2 (Ag-1/CeO2) were prepared using a new in situ adsorption-reduction method. The Ag single atoms were anchored on CeO2 through strong metal-support interaction (SMSI) and were accompanied by three interfacial oxygen vacancies. Ag-1/CeO2 exhibited high performance in the electrocatalytic CO2 reduction reaction (CO2RR), with a high CO faradaic efficiency (FE) of >95% and a turnover frequency (TOF) value of 50,310 h(-1) at FECO = 99.5% in H-cells. Notably, Ag-1/CeO2 achieved an industrial-grade current density of 403 mA cm(-2) with a high FECO of 97.2% in flow cells. Experimental results and density functional theory calculations revealed that the superior performance was mainly attributed to the existence of interfacial oxygen vacancies, which formed Ag-O-Ce3+ atomic interfaces and activated the Ce3+-O structures as the synergistic active center of Ag, thereby promoting CO2 adsorption and activation and reducing the reaction potential barrier of *COOH-to-*CO.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Qinghua Deng, Yong Yang, Wentian Zhao, Zheng Tang, Kai Yin, Youchao Song, Yiwei Zhang
Summary: By leveraging designed electronic oxide-metal interactions, cerium-supported copper demonstrates remarkable competitiveness in the carbon dioxide reduction reaction. However, the limited utilization efficiency of conventional cerium oxide support hampers the effectiveness of these interactions. Additionally, the influence of distinct crystalline surfaces of CeO2 on loaded copper species is not well understood.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yiqiang Jiang, Changhyeok Choi, Song Hong, Senlin Chu, Tai-Sing Wu, Yun-Liang Soo, Leiduan Hao, Yousung Jung, Zhenyu Sun
Summary: The study demonstrates that a combination of Sn doping and creation of oxygen vacancies can synergistically boost the electrochemical reduction of CO2 to C2H4 over CuO nanosheets. The activity and selectivity of CuO can be easily tuned by manipulating Sn dopant and V-O contents, leading to improved Faradaic efficiency towards C2H4 formation. Theoretical calculations further support that doping of VO-enriched CuO surface by Sn can promote C-C coupling to yield C2H4.
CELL REPORTS PHYSICAL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Mengdong Nie, Aixin Cui, Man Wu, Tuo Guo, Qingjie Guo
Summary: This study elucidates the correlation of metal-support interactions in CuO/LaCeOx catalysts and the promotion of catalytic activity. It is found that the introduction of La enhances the conversion of Ce4+ into Ce3+ in the catalyst and activates the formate reaction pathway of CO2 hydrogenation.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Inorganic & Nuclear
Xuliang Pang, Huaiquan Zhao, Yifei Huang, Youchao Liu, Hongye Bai, Weiqiang Fan, Weidong Shi
Summary: By using an oxidative/reductive activation electrochemical reconstruction method, the intrinsic activity of a catalyst has been significantly enhanced, leading to superior catalytic performance. This method involves the reconstruction of active sites on the catalyst surface and the optimization of its chemical composition and electronic structure, enabling applications in reactions such as hydroxymethylfurfural oxidation and 4-nitrophenol hydrogenation.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Siraj Sultan, Hojeong Lee, Sojung Park, Minho M. Kim, Aram Yoon, Hansaem Choi, Tae-Hoon Kong, Young-Jin Koe, Hyung-Suk Oh, Zonghoon Lee, Hyungjun Kim, Wooyul Kim, Youngkook Kwon
Summary: In this study, a newly designed electrocatalyst with phase and interphase engineering achieves high selectivity for the electrochemical reduction of carbon dioxide to ethylene. The catalyst shows good catalytic stability and material durability.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Zi Yang, Deguang Ji, Zhi Li, Zidong He, Yang Hu, Jie Yin, Yichao Hou, Pinxian Xi, Chun-Hua Yan
Summary: In this study, cerium is utilized as a self-sacrificing agent to stabilize Cu+ of CuS, resulting in high selectivity for ethanol production during the electrochemical CO2 reduction.
Article
Chemistry, Multidisciplinary
Danqing Shu, Miao Wang, Fengyu Tian, Honglei Zhang, Chuang Peng
Summary: The study demonstrates increased hydrocarbon yield and lower onset potential for C2H4 using an Ag-Cu dual-cathode CO2RR device. It also suggests that splitting the CO2RR process into two separate steps is a feasible method to improve overall efficiency and rate of advanced products. A single-pass dual-gas diffusion cathode reactor is proposed for optimization of the dual-cathode cell.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Engineering, Environmental
Roberto Fiorenza, Marianna Bellardita, Stefano Andrea Balsamo, Luca Spitaleri, Antonino Gulino, Marcello Condorelli, Luisa D'Urso, Salvatore Scire, Leonardo Palmisano
Summary: The study combined the photoactive features of the least common polymorph of TiO2, brookite, with the thermocatalytic redox properties of cerium oxide, showing that small amounts of Co-Cu oxides can enhance solar CO2 conversion. Surface segregation of hosted metal oxides on the TiO2-CeO2 composite was observed, leading to increased oxygen vacancies and improved charge carriers separation, resulting in enhanced photocatalytic carbon dioxide reduction at room temperature.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Xinyu Wang, Yawen Jiang, Keke Mao, Wanbing Gong, Delong Duan, Jun Ma, Yuan Zhong, Jiawei Li, Hengjie Liu, Ran Long, Yujie Xiong
Summary: The study demonstrates that the interfacial CuAlO2 species efficiently stabilizes highly active sites on the Cu-CuAlO2-Al2O3 catalyst during harsh electrochemical conditions, leading to an ultradurable electrochemical CO2RR performance with high C2 selectivity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Xupeng Yan, Chunjun Chen, Yahui Wu, Shoujie Liu, Yizhen Chen, Rongjuan Feng, Jing Zhang, Buxing Han
Summary: The combination of cerium oxides and CuO in CeO2/CuO demonstrated an outstanding catalytic performance for C2+ products, showing that the interface and subsurface structure coordination during CO2RR process can enhance both the selectivity and activity for C2+ products.
Article
Chemistry, Physical
Zhiqian Li, Xue Yang, Qi Fang, Tao Cheng, Zining Zhang, Hongjuan Zhang, Jing Tang
Summary: In this study, CuO nanosheets were modified by in-situ boron doping to enhance the electroreduction performance of carbon dioxide. The optimized B-CuO NS catalyst exhibited a high faradaic efficiency of 54.78% for C2+ production at a specific potential. This work provides a rational design strategy for developing efficient catalysts for the electroreduction of CO2.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Binbin Jia, Lidong Li, Chuang Xue, Jianxin Kang, Li-min Liu, Tianqi Guo, Zhongchang Wang, Qizheng Huang, Shaojun Guo
Summary: This study reports a sacrificial protection strategy to stabilize crystalline CuO by embedding active amorphous SnO2, which greatly enhances the electrocatalytic sensitivity, activity, and stability for CO2RR to formate. The hybrid catalyst exhibits superior selectivity and current density, outperforming industrial benchmarks.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Min Ling, Kun Liu, Na Li, Kong-Lin Wu, Yin Ye, Weizhi Wang, Xian-Wen Wei
Article
Chemistry, Multidisciplinary
Liyan Zhang, Huiping Liu, Guozan Yuan, Ying-Feng Han
Summary: In recent years, chiral discrete supramolecular coordination complexes have attracted increasing interest as simple enzyme mimetics due to their aesthetic architectures and potential applications in chiral science. This review summarizes the recent advances on chiral coordination metallacycles/metallacages with inherent cavities for enantionselective recognition and separation, including their design principles and synthesis, the introduction of chirality and functionality, structural adaptability, and host-guest bonding in enantioselective process. Finally, the perspectives on the remaining challenges and future opportunities are presented.
CHINESE JOURNAL OF CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Liang Ma, Xiaojing Xuan, Minghui Fan, Yumeng Zhang, Guozan Yuan, Guozheng Huang, Zi Liu
Summary: Chemotherapy is an important treatment for breast cancer, but tumor cells can develop resistance to apoptosis induced by this therapy. Inducing non-apoptotic cell death modes, such as paraptosis, is significant in breast cancer treatment. In this study, a novel 8-hydroxyquinoline derivative HQ-11 was investigated for its potential mechanisms in anti-breast cancer therapy. The results showed that HQ-11 triggered two distinct cell death modes, inhibited proteasome function and activated the ERK pathway, providing a promising candidate for future breast cancer treatment.
Article
Polymer Science
Xin Wang, Zongtao Wang, Mingwei Li, Lijun Tu, Ke Wang, Dengping Xiao, Qiang Guo, Ming Zhou, Xianwen Wei, Yongqiang Shi, Erjun Zhou
Summary: The molecular design of a wide-bandgap polymer donor is crucial to achieve high-performance organic photovoltaic devices. In this study, a new dibenzo-fused quinoxalineimide (BPQI) was successfully synthesized as an electron-deficient building block for constructing donor-acceptor (D-A) type polymers. The study also discovered a non-fullerene acceptor (NFA) material, Y6, with excellent electrochemical and optical properties and high efficiency. By combining the BPQI polymer with the Y6 acceptor, the resulting devices exhibited good photovoltaic performance.
Article
Chemistry, Multidisciplinary
Jun Zhang, Xiaofeng Cui, Yu Zhou, Tingting Kong, Yixin Wang, Xianwen Wei, Yujie Xiong
Summary: In this study, Au-25 nanoclusters were encapsulated in a Cu-3(BTC)(2) metal-organic framework (Au-25@Cu-BTC), which enables CO2 photoreduction for selective CO production in low-concentration CO2 atmospheres (even down to 0.1%) with significantly improved durability for at least 48 hours.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ming-Ming Gan, Fang Wang, Xin Li, Li-Ying Sun, Guozan Yuan, Ying-Feng Han
Summary: In this work, a series of poly-NHC-based tetranuclear silver helicates and mesocates were synthesized through the silver-mediated self-assembly of the ligands. Metal exchange reaction resulted in the transformation of the silver helicate into a gold mesocate. The metallosupramolecular helicates and mesocates were fully characterized using various analytical techniques, revealing the influence of the size of metal ions and the steric effect of ligands on the selective preparation of different forms of poly-NHC-based complexes.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Zhaoxin Meng, Feinian Yang, Xiaojuan Wang, Wei-Long Shan, Dongdong Liu, Liyan Zhang, Guozan Yuan
Summary: A novel phenanthroline-based metal-organic cage with a rare trefoil-shaped structure and excellent fluorescence sensing abilities was successfully synthesized. Through X-ray analysis, it was found that the cage exhibits a rare trefoil-shaped structure and has further stacked into a 3D porous supramolecular structure through abundant intermolecular interactions. Experimental results showed that the cage has excellent fluorescence sensing abilities for Fe3+, Cr2O72-, and nitrofuran and nitroimidazole antibiotics.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Yuan-Sheng Cheng, Zhi-Yuan Xing, Xu Zheng, Xu-Dong Xu, Yan-Shang Kang, Delei Yu, Kong-Lin Wu, Fang-Hui Wu, Guozan Yuan, Xian-Wen Wei
Summary: The development of high-activity photocatalysts for the large-scale industrial application of photocatalytic selective conversion of biomass alcohols into value-added chemicals and H2 evolution in aqueous solution is still a challenge. In this study, ReS2 was used as a high-efficiency co-catalyst to modify flower-like ZnIn2S4 microspheres, resulting in significant enhancements in the photocatalytic oxidation of furfural alcohols combined with H2 evolution. The optimal catalyst, RZIS-3, containing 4.08 wt% ReS2, achieved remarkably high generation rates of H2 and furfural at 3092.9 and 2981.1 mmol g-1 h-1, respectively, nearly 12 times faster than blank ZnIn2S4. Mechanism studies confirmed that the migration of photogenerated carriers from ZnIn2S4 to ReS2 was responsible for the enhanced photoactivity of the composite. Furthermore, the composite showed high performance in the oxidation of other alcohol biomass intermediates, providing valuable insights for the design and fabrication of novel photocatalytic hydrogen evolution systems.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Kai Yao, Zhaobin Fang, Jieyue Wang, Wenhai Wang, Mingyue Wang, Weijie Yan, Mingfu Ye, Binbin Jiang, Konglin Wu, Xianwen Wei
Summary: Cu3PdN nanocrystals exhibit high faradaic efficiency and selectivity for nitrate-to-ammonia conversion due to the charge redistribution caused by modulation of the electronic structures of Cu and Pd atoms, which alters the adsorption activation energy of the intermediates during the nitrate reduction reaction process.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Weibin Yu, Feng-Yi Qiu, Shi-Ting Luo, Hua-Tian Shi, Guozan Yuan, Xianwen Wei
Summary: Researchers have successfully constructed a triply interlocked [2]catenane with confirmed solid-state structure and solution properties, showing potential applications in drug delivery systems.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Liyan Zhang, Shiwei Li, Huiping Liu, Yuan-Sheng Cheng, Xian-Wen Wei, Xiaomin Chai, Guozan Yuan
INORGANIC CHEMISTRY
(2020)
Article
Chemistry, Inorganic & Nuclear
Quan Sun, Kun Yang, Wenna Ma, Liyan Zhang, Guozan Yuan
INORGANIC CHEMISTRY FRONTIERS
(2020)
