Article
Chemistry, Physical
Ralitsa Velinova, Anton Naydenov, Diana Kichukova, Ventsislav Tumbalev, Genoveva Atanasova, Daniela Kovacheva, Ivanka Spassova
Summary: This work presents Pd-containing catalysts for the complete oxidation of VOCs with enhanced low-temperature activity. The catalysts, composed of reduced graphene oxide (RGO) and alumina, show long-term stability and the ability to completely oxidize various VOCs and CO at low temperatures (100-350°C). The optimal Pd/PdO ratio for high activity and stability is found to be close to 1:1.
Article
Chemistry, Inorganic & Nuclear
Lianwei Wei, Jiaping Hu, Huimin Liu, Wanqun Zhang, Hui Zheng, Shusheng Wu, Kaibin Tang
Summary: This study presents the application of Sr-6(Co0.8Fe0.2)(5)O-15 (SCF-H) perovskite oxide as an electrocatalyst for the oxygen evolution reaction (OER) in alkaline media. SCF-H exhibits remarkable OER activity with abundant surface oxygen species, faster charge transfer rate, and higher electrochemical surface area, making it a promising OER electrocatalyst.
DALTON TRANSACTIONS
(2022)
Review
Chemistry, Physical
Huai Liu, Xing Tang, Xianhai Zeng, Yong Sun, Xixian Ke, Tianyuan Li, Jiaren Zhang, Lu Lin
Summary: This review comprehensively summarizes the established heterogeneous catalyst design strategy for the selective oxidation of 5-hydroxymethylfurfural (HMF) via thermo-catalysis. The focus is on the reaction mechanism of HMF oxidation over different catalysts and enhancing the catalytic performance of the catalyst through manipulating the properties of the support and fabricating multi-component metal nanoparticles and oxides. The current challenges and possible research directions for the catalytic oxidation of HMF in the future are also discussed.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Chemistry, Inorganic & Nuclear
Juan Hao, Zhouyang Long, Liming Sun, Wenwen Zhan, Xiaojun Wang, Xiguang Han
Summary: The monodisperse CeO2@N-C ultrathin nanosheet self-assembled hierarchical structure (USHR) prepared by metal-organic framework template methods exhibits excellent catalytic performance for the selective oxidation of benzylic alcohols in water, thanks to its unique 3D hierarchical structure and abundant active sites provided by ultrathin nanosheets.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Nicolas Lentz, Sabela Reuge, Martin Albrecht
Summary: This article demonstrates that an iridium complex containinga pyridinium ligand, (PYE+)-P-Ir, can reversibly store a hydride upon reaction with formate, reminiscent of nature's NAD(+)/NADH hydridestorageand transfer system. The stored hydride in (PYEH)-P-Ir is stable towards air and water but can be released in the presence of electrophiles such as acids or carbonyl compounds. The reversible hydride storage allows for a catalytic hydrogenation procedure in (PYEH)-P-Ir with turnover numbers reaching up to 100,000, surpassing other related catalysts by several orders of magnitude. Additionally, (PYED)-P-Ir enables selective deuterium isotope labeling with deuterated formate, even in the presence of acids, air, and moisture.
Article
Chemistry, Multidisciplinary
Qiong Liu, Hui Cheng, Tianxiang Chen, Tsz Woon Benedict Lo, Zhangmin Xiang, Fuxian Wang
Summary: This study presents a new strategy for designing carbon nitrides for highly selective and sustainable conversion of CO2 to CH3CHO, achieved through the selective photocatalytic hydrogenation of CO2 to CH3CHO using a modified polymeric carbon nitride under mild conditions.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Wangxi Liu, Yuanqi Wang, Huiting Huang, Jun Wang, Gaoxiang He, Jianyong Feng, Tao Yu, Zhaosheng Li, Zhigang Zou
Summary: Light-driven primary amine oxidation to imines integrated with H2 production presents a promising means to simultaneous production of high-value-added fine chemicals and clean fuels. A spatial decoupling strategy is proposed to overcome the limitations of poor charge separation and uncontrolled hydrogenation. The CoP@ZnIn2S4 photocatalyst exhibits directional and ultrafast carrier separation, leading to significantly higher production rate and selectivity for the photoconversion of benzylamine to N-benzylbenzaldimine.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Green & Sustainable Science & Technology
Lian Yi, Yubiao Li, Liangliang Zhu, Caiyan Gao, Xiaoyong Wu
Summary: A novel Cu-R catalyst was successfully synthesized in this study, showing excellent performance in degrading refractory organic contaminant tetracycline (TC) under PMS activation. Cu-R exhibited high reaction rate constants, excellent resistance to Cl-, HCO3-, and NO3-, as well as stability within a wide pH range. The synergistic effect between CuO and rectorite played a key role in the activation of PMS and production of active radicals for TC removal.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Mingmei Zhang, Zhuokai Wang, Woyuan Li, An Wang, Zixiang Song, Zhiye Huang, Can Hang, Zonggui Hu
Summary: A novel bifunctional catalyst, CoNi@NC/NCNTs, was synthesized by a simple two-step process, in which nitrogen-doped carbon nanotubes (NCNTs) were in situ grafted on a CoNi-MOF derivative. The interconnected three-dimensional CoNi@NC-NCNTs heterostructure exhibited atomically dispersed CoNi nanocrystalline and autocatalytic growth of NCNTs on its surface. The CoNi@NC/NCNTs-400 hybrid showed faster catalytic kinetics for methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR) compared to CoNi@NC and Co@NC, with a peak current density of 58.37 mA cm-2 at a scanning rate of 30 mV s-1 in a 0.5 M KOH + 1 M CH3OH solution. Moreover, the CoNi@NC/NCNTs-400 hybrids displayed excellent ORR catalytic efficiency with a half-wave potential of 0.810 V vs RHE and high stability. This satisfactory electrocatalytic activity was attributed to the synergistic effect between CoNi nanoparticles embedded in a nitrogen-doped carbon framework and NCNTs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Shabab Hussain, Sher Bahadar, Guitu Wang, Liping Zhu, Zhizhen Ye, Xinsheng Peng
Summary: A new method was developed to synthesize a thin polyamide layer with sufficient channels by using Fe-TCPP metal organic frameworks nanofibers via photothermal effect. The resulting thin-film composite nanofiltration membrane showed stable separation performance and has potential for organic solvent nanofiltration and dye-wasted water separation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Weijie Yang, Xiaoshuo Liu, Xuelu Chen, Yue Cao, Shaoping Cui, Long Jiao, Chongchong Wu, Chuanmin Chen, Dong Fu, Ian D. Gates, Zhengyang Gao, Hai-Long Jiang
Summary: A new single-atom catalyst Fe-1-N-4-C with excellent catalytic activity and sulfur resistance has been developed for the oxidation of NO and Hg-0, showing promising potential for cleaner coal-fired power plant operations.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Dongyang Li, Yulan Huang, Ruijie Ma, Heng Liu, Qiong Liang, Yu Han, Zhiwei Ren, Kuan Liu, Patrick Wai-Keung Fong, Zhuoqiong Zhang, Qing Lian, Xinhui Lu, Chun Cheng, Gang Li
Summary: Optimizing the interface between perovskite and transport layers is an efficient approach to enhance the photovoltaic performance of inverted perovskite solar cells (IPSCs). A polymeric semiconducting material, PY-IT, is introduced as an interface regulator, which effectively passivates defects and facilitates electron transfer. The IPSC devices treated with this material achieve an optimal efficiency of 23.57% and maintain approximately 80% of their initial efficiency after 1000 hours of illumination.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Fengqian Chen, Xinyu Guan, Hui Li, Jiehua Ding, Liangkui Zhu, Bin Tang, Valentin Valtchev, Yushan Yan, Shilun Qiu, Qianrong Fang
Summary: The study introduces two 3D radical-based COFs with high efficiency and selectivity as metal-free redox catalysts for oxidizing alcohols to aldehydes or ketones. These stable COF-based catalysts exhibit outstanding catalytic performance and reusability, showing potential applications in organic synthesis and material science.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
M. Assis, A. F. Gouveia, L. K. Ribeiro, M. A. Ponce, M. S. Churio, O. N. Oliveira Jr, L. H. Mascaro, E. Longo, R. Llusar, E. Guillamon, J. Andres
Summary: Chemoselective oxidation of sulfides to sulfones has been achieved using metal-based tungstates as catalysts, tolerating a broad range of functional groups. α-Ag2WO4 and NiWO4 were identified as the most efficient and selective catalysts, completing the transformation in 1 and 2 hours, respectively. The success of the selective oxidation is attributed to hydroxyl radical and singlet oxygen as redox mediators.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Baijie Xu, Qian Xu, Quanzhong Wang, Zhen Liu, Ruikun Zhao, Dandan Li, Pengtao Ma, Jingping Wang, Jingyang Niu
Summary: The copper-containing polyoxometalate-based metal-organic framework HENU-7 showed excellent catalytic performance for the oxidation of diphenylmethane, with high conversion rate and selectivity to benzophenone. In addition, the material demonstrated stability for multiple reuses and the ability to catalyze the oxidation of different benzylic compounds.
INORGANIC CHEMISTRY
(2021)
