Article
Chemistry, Applied
Lujain Alfilfil, Jiansu Ran, Cailing Chen, Xinglong Dong, Jianjian Wang, Yu Han
Summary: In this study, a catalyst composed of highly dispersed Pd nanoparticles (NPs) confined in zeolite ZSM-5 crystals was prepared for the selective hydrogenation of alpha,beta-unsaturated aldehyde. The catalyst showed excellent performance with high selectivity and a significant enhancement in the production of hydrocinnamaldehyde (HCAL). Liquid adsorption combined with infrared spectroscopy characterization revealed that the catalyst adsorbed less reactant and product molecules and quickly desorbed the generated HCAL, leading to the suppression of by-products formation and high selectivity of HCAL.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Kuncan Wang, Yuanmin Zhu, Meng Gu, Zhiwei Hu, Yu-Chung Chang, Chih-Wen Pao, Yong Xu, Xiaoqing Huang
Summary: This study demonstrates the use of 2D S-doped ZnInOx as a support for Pd nanoparticles to promote the selective CO2 hydrogenation to methanol. The strong interaction between Pd NPs and amorphous S-doped ZnO prevents aggregation and enhances the selectivity of CO2 hydrogenation. This research provides a facile route to control catalytic supports and load active species, which may attract great research interests in the field of heterogeneous catalysis.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Applied
Zaffar Iqbal, Muhammad Sadiq, Saima Sadiq, Khalid Saeed
Summary: In this study, control shaped and nano-sized zirconia catalysts were synthesized using modified microwave irradiation method. The catalysts showed high catalytic activity and stability in a microwave reactor, making them suitable for various organic hydrogenation reactions.
Article
Chemistry, Multidisciplinary
Zeai Huang, Jundao Wu, Minzhi Ma, Junbu Wang, Shuqi Wu, Xiaoyun Hu, Chengdong Yuan, Ying Zhou
Summary: This study reported the use of BiOCl nanosheets loaded with noble metals for photocatalytic CO2 reduction. Pd-loaded BiOCl showed the highest activity and selectivity for CH4 formation. The improved performance was attributed to enhanced charge separation efficiency and the formation of key intermediates during CH4 formation. The findings provide a facile and efficient way to achieve selective CH4 formation via photocatalytic CO2 reduction.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Qixia Zhang, Ying Ma, Jun Ma, Caixia Meng, Shizhong Luo, Yuefeng Liu
Summary: In this study, spherical monoliths containing oxygenated carbon nanotube-supported Pd nanoparticles are fabricated and applied for cinnamaldehyde selective hydrogenation. The monolithic catalyst exhibits excellent catalytic activity and selectivity, making it suitable for industrial hydrogenation reactions.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Kazumasa Murata, Takumi Shiotani, Junya Ohyama, Atsushi Satsuma
Summary: There is a positive correlation between the C=C selective hydrogenation activity of cinnamaldehyde (CAL) and the fraction of the Pd step site on Pd nanoparticles. Due to a high fraction of step sites, Pd/theta-Al2O3 catalysts with Pd particle size of 5-10 nm exhibit high activity for the C=C selective hydrogenation of CAL.
Article
Chemistry, Multidisciplinary
Dongping Fan, Ke Guo, Qiaoqiao Hao, Yan Zhang, Dongdong Xu
Summary: Ultrathin RhCuAgPd/Pd nanowire heterostructures prepared by a seed-mediated growth method exhibit superior electrocatalytic performance for ethylene glycol oxidation under alkaline conditions.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Shuai Wei, Hongxiao Zhong, Hongtao Wang, Yujie Song, Chunman Jia, Masakazu Anpo, Ling Wu
Summary: Two atomic layered BiOCl nanosheets with rich oxygen vacancies were constructed via surface Pd deposition, exhibiting high photocatalytic activity and selectivity. The ultrathin structure of the nanosheets induces the formation of surface oxygen vacancies, resulting in increased visible light absorption. In-situ experiments revealed that the oxygen vacancy sites contribute to the conversion of O-2 molecules from air to the surface. Furthermore, low-coordinated Bi and Pd sites play crucial roles in the formation of active species.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Reza Khaleghi Abasabadi, Abbas Ali Khodadadi, Yadollah Mortazavi
Summary: The study explores the impact of different types of carbon-nitrogen bonds on the activity and selectivity of the palladium active phase in the hydrogenation of cinnamaldehyde. Pyridinic nitrogen has a positive effect on the uniform distribution of Pd. The catalyst treated at 500 degrees Celsius shows high conversion and selectivity in the reaction.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
Article
Chemistry, Physical
Hio Tong Ngan, George Yan, Jessi E. S. van der Hoeven, Robert J. Madix, Cynthia M. Friend, Philippe Sautet
Summary: This study investigates the mechanism and origin of the high selectivity of dilute Pd-in-Au catalysts using a combination of first principles calculations, microkinetic simulations, and isotopic exchange hydrogenation experiments. The results reveal that the rate-limiting step for 1-hexyne hydrogenation on isolated Pd atoms in Au(111) is H2 dissociation, while the C-H bond formation steps proceed with lower barriers. The high selectivity for alkene production is attributed to the sizable H2 dissociation barrier and the small barrier for the hydrogenation of 1-hexyne. The study also shows that diluting active species in a less active host metal appears promising for tuning the binding energy of reactants and altering reaction profiles.
Article
Chemistry, Analytical
Jae-Hun Kim, Ali Mirzaei, Minoru Osada, Hyoun Woo Kim, Sang Sub Kim
Summary: The study utilized pristine and Pd-decorated 2D ZnO nanosheets for hydrogen detection, showing positive effects of Pd decoration on response, sensing temperature, and selectivity. Gas sensing experiments demonstrated that the Pd-decorated nanosheet sensor successfully detected low concentrations of hydrogen gas and could also detect hydrogen in a gaseous mixture with benzene. Furthermore, the presence of Pd-ZnO heterojunctions, formation of PdHx, and high catalytic activity of Pd were found to contribute to the sensing enhancement of the Pd-decorated sensor.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Applied
Yingzhang Shi, Huan Wang, Zhiwen Wang, Cheng Liu, Mingchuang Shen, Taikang Wu, Ling Wu
Summary: The development of efficient ultrathin SnNb2O6 nanosheets with dispersed Pt nanoparticles as a photocatalyst has shown high conversion and selectivity in precise hydrogenation of furfural to furfuryl alcohol under visible light irradiation. The synergistic effects between the nanosheets and nanoparticles significantly enhance the photocatalytic performance for hydrogenation.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Energy & Fuels
Xiaochun Ke, Jinfeng Zhang, Kai Dai, Ke Fan, Changhao Liang
Summary: A novel S-scheme SnNb2O6/CdSe-diethylenetriamine heterojunction was designed and showed enhanced activity in the solar-driven photocatalytic conversion of CO2 to CO, attributed to the synergy between CdSe-diethylenetriamine nanorods and SNO nanosheets in the S-scheme system.
Article
Chemistry, Multidisciplinary
Ying Zhang, Jinfang Su, Junnan Chen, Chengshan Dai, Bingsen Zhang
Summary: In this study, a series of PtxFey-Al2O3 bimetallic catalysts were prepared, and the introduction of Fe significantly modified the properties of Pt, enhancing the selectivity of C=O hydrogenation. Among them, Pt3Fe-Al2O3 exhibited the best catalytic performance, with excellent reusability and relatively stable structure.
CHINESE CHEMICAL LETTERS
(2022)
Article
Engineering, Chemical
Yifan Song, Yanwei Sun, Dongying Du, Mu Zhang, Yi Liu, Liangliang Liu, Taotao Ji, Gaohong He
Summary: In this study, highly c-oriented ultrathin 2D Cu-TCPP membranes were successfully fabricated on porous alumina substrates through in-situ solvothermal method, showing precise size-selective molecular sieving behavior.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Yifan Sun, Ye Lv, Wei Li, Jinli Zhang, Yan Fu
Summary: In this study, PtRu electrocatalysts were fabricated on carbon paper via cyclic electrodeposition for the electrocatalytic hydrogenation (ECH) of phenol. The Pt3Ru3 catalyst exhibited excellent activity and stability for the conversion of phenol to cyclohexanol at ambient temperature and various current densities. The in situ Raman spectroscopy and kinetic study revealed the hydrogenation mechanism of phenol over Pt3Ru3 in acidic electrolyte, providing an effective electrochemical strategy for the facile construction of durable electrode materials and efficient phenol hydrogenation.
JOURNAL OF CATALYSIS
(2024)
Article
Chemistry, Physical
Amir Shahzad, Khezina Rafiq, Muhammad Zeeshan Abid, Naseem Ahmad Khan, Syed Shoaib Ahmad Shah, Raed H. Althomali, Abdul Rauf, Ejaz Hussain
Summary: Photocatalytic hydrogen production through water splitting is an effective method for meeting future energy demands. In this study, researchers synthesized a 1 % Ag2S/Cu2S co-doped CdZnS catalyst and found that it can produce hydrogen at a higher rate. The co-doping of Ag2S and Cu2S in the CdZnS catalyst showed a synergistic effect, with Ag2S promoting oxidation reactions and Cu2S promoting reduction reactions.
JOURNAL OF CATALYSIS
(2024)
