Article
Materials Science, Multidisciplinary
Yanxi Qin, Rongyu Li, Wei Mi, Wei Shi, Baoying Lu, Xili Tong
Summary: The study explored aqueous catalytic phenol using Pd7P3/SiC catalysts in the presence of H-2, with results showing that a catalyst with a loading of 2.4 wt% exhibited the best activity and achieved a conversion rate of over 99%.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Engineering, Environmental
Ming Zhao, Liang Zhao, Jing-Pei Cao, Wei Jiang, Jin-Xuan Xie, Chen Zhu, Si-Yi Wang, Yu-Lei Wei, Xiao-Yan Zhao, Hong-Cun Bai
Summary: Lignin-derived compounds provide a platform for the production of value-added chemicals. In this study, a catalytic reaction using metal phosphide (Pd-Ni-P) was reported for the conversion of diphenyl ether to cyclohexanol via a partial hydrogenation-hydrolysis-hydrogenation pathway. The Pd-Ni-P catalyst showed high selectivity and productivity in converting diphenyl ether to cyclohexanol, and similar reactions were observed for other lignin-derived compounds.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Physical
Neda Jeddi, Neil W. J. Scott, Ian J. S. Fairlamb
Summary: Recent studies have shown that the privileged reactivity of higher-order metal clusters can be utilized in widely applied catalytic processes. Small Pdn clusters with unique reactivity, selectivity, and catalyst behavior have been discovered, presenting potential in catalyst design and application. This review focuses on the catalytic applications of Pdn clusters and discusses the underlying structure linked to their reactivity. It further proposes a hypothesis regarding the formation of higher-order Pd species through ligated Pdn clusters.
Article
Chemistry, Physical
Neda Jeddi, Neil W. J. Scott, Ian J. S. Fairlamb
Summary: Recent studies have shown that the privileged reactivity of higher-order metal clusters can be utilized in widely applied catalytic processes, such as cross-coupling reactions and hydrogenative transformations. This review focuses on the catalytic applications of Pd-n clusters and discusses the underlying structure of these clusters in relation to their reactivity. It also proposes a hypothesis that ligated Pd-n clusters may play a role in the formation of higher-order Pd species.
Article
Chemistry, Physical
Ming Zhao, Liang Zhao, Xiao-Yan Zhao, Jing-Pei Cao, Koh-ichi Maruyama
Summary: In this study, three types of Pd-based nano-catalysts were prepared and their application in the depolymerization of alkali lignin was explored under H-2-free and H-2 atmosphere conditions. The results showed that the ternary Pd-Ni-P catalyst exhibited remarkable performance and could produce guaiacols under H-2 atmosphere conditions with a yield of 14.2 wt.% and a selectivity of 89%. This work suggests that metal phosphides could be promising catalysts for converting lignin and lignin-derived feedstocks into high-value chemicals.
Article
Engineering, Environmental
Edgar S. Duran-Uribe, Antonio Sepulveda-Escribano, Enrique V. Ramos-Fernandez
Summary: Transition metal phosphides have attracted great interest as catalysts for hydrogenation reactions. In this study, cobalt phosphide nanoparticles supported on carbon were synthesized using microwave assistance and applied in the hydrogenation of 1-chloro-4-nitrobenzene. The catalytic activity was found to depend on the reduction temperature, with the phosphorus-rich cobalt phosphide obtained at low temperatures exhibiting the highest activity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Bono van IJzendoorn, Saad F. Albawardi, Inigo J. Vitorica-Yrezabal, George F. S. Whitehead, John E. McGrady, Meera Mehta
Summary: The first fully characterized boron-functionalized heptaphosphide Zintl cluster, [(BBN)P7]2- ([1]2-), is synthesized through dehydrocoupling of [HP7]2-. [Na(18-c-6)]2[1] is used as a transition metal-free catalyst for the hydroboration of aldehydes and ketones. In addition, the cluster is found to efficiently and selectively reduce carbon dioxide (CO2) to methoxyborane.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Bono van Ijzendoorn, Saad F. Albawardi, Inigo J. Vitorica-Yrezabal, George F. S. Whitehead, John E. McGrady, Meera Mehta
Summary: The first fully characterized boron-functionalized heptaphosphide Zintl cluster, [(BBN)P-7](2-) ([1](2-)), is synthesized by dehydrocoupling [HP7](2-). Dehydrocoupling is a previously unprecedented reaction pathway to functionalize Zintl clusters. [Na(18-c-6)](2)[1] was employed as a transition metal-free catalyst for the hydroboration of aldehydes and ketones. Moreover, the greenhouse gas carbon dioxide (CO2) was efficiently and selectively reduced to methoxyborane. This work represents the first examples of Zintl catalysis where the transformation is transition metal-free and where the cluster is noninnocent.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Inorganic & Nuclear
Saurav Bhattacharya, Xiang Ma, Ali S. Mougharbel, Mohamed Haouas, Pei Su, Michael Forrester Espenship, Dereje H. Taffa, Helge Jaensch, Anton-Jan Bons, Tobias Stuerzer, Michael Wark, Julia Laskin, Emmanuel Cadot, Ulrich Kortz
Summary: The study reports the synthesis and structural characterization of a giant, neutral molecular disk, Pd-40, which can function as an effective heterogeneous hydrogenation catalyst for various organic transformations.
INORGANIC CHEMISTRY
(2021)
Article
Engineering, Environmental
Xiaowen Lu, Tingting Luo, Mingyang Zhang, J. Hugh Horton, Qiong Wu, Wei Wu, Man Qiao, Yu Wang, Zhijun Li
Summary: The size and geometry of supported metal ensembles are crucial in the design of effective heterogeneous catalysts. In this study, supported single atomic-layered, low-nuclearity palladium catalysts were created using an electronic and structural engineering strategy. These atomically dispersed Pd catalysts exhibited excellent catalytic activity in the hydrogenation of levulinic acid to 1,4-pentanediol, a reaction of importance for biomass conversion. Theoretical calculations revealed that the high catalytic activity was a result of cooperation between adjacent Pd atoms and strong electronic metal-support interactions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Lyudmila B. Belykh, Nikita I. Skripov, Tatyana P. Sterenchuk, Vladlen V. Akimov, Vladimir L. Tauson, Elena A. Milenkaya, Fedor K. Schmidt
Summary: The study indicates that the catalyst based on structurally disordered Pd-P nanoparticles shows high efficiency in the hydrogenation of 2-ethyl-9,10-anthraquinone for the preparation of hydrogen peroxide. Additionally, the Pd-P/C catalyst exhibits superior performance in terms of H2O2 yield compared to other known catalysts.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Cheng Pan, Guangying Yang, Haitao Yang, Feifan Wu, Lei Wang, Jungang Jiang, Yifan Zhang, Junxia Yuan
Summary: This paper reports a simple method for constructing iron/nickel phosphide nanocrystals anchored on N-B-doped carbon-based composites, using steam-exploded poplar and graphene oxide as a carrier. The study showed that these nanocrystals exhibited better catalytic performances, including higher reaction rate and higher activity factor.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Zabiollah Mahdavifar
Summary: In this study, a modern crystal structure prediction method, USPEX conjugated with DFT calculations, was employed to predict new stable structures of BnPn clusters. Predicted structures were classified into two distinct phases, alpha-BnPn and beta-BnPn, offering potential advantages in optoelectronic applications and photocatalytic activities.
NANOSCALE ADVANCES
(2021)
Article
Chemistry, Physical
Yusheng Gao, Aiqun Kong, Mao Peng, Ye Lv, Menghui Liu, Wei Li, Jinli Zhang, Yan Fu
Summary: This study presents a new electrochemical strategy for achieving C=O selectivity in the thermal catalytic hydrogenation of cinnamaldehyde (CAL). The results show that the specific interaction between CAL and electrolyte-modulated Pd surface enables the unexpected switch toward C=O bond. The electrochemical environment plays a crucial role in altering the selective hydrogenation of alpha,beta-unsaturated aldehydes.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Tianou He, Weicong Wang, Xiaolong Yang, Fenglei Shi, Zuyang Ye, Yangzi Zheng, Fan Li, Jianbo Wu, Yadong Yin, Mingshang Jin
Summary: In this study, a leaching-free, ultrastable core-shell Pt catalyst was developed by depositing a submonolayer of Pt on amorphous palladium phosphide substrates. The catalyst exhibited high corrosion resistance and strong interfacial Pt-P interactions, resulting in superior durability and high activity for the oxygen reduction reaction.
Article
Chemistry, Multidisciplinary
Lyudmila B. Belykh, Nikita I. Skripov, Tatyana P. Sterenchuk, Kseniya L. Gvozdovskaya, Seseg B. Sanzhieva, Fedor K. Schmidt
JOURNAL OF NANOPARTICLE RESEARCH
(2019)
Article
Chemistry, Physical
Lyudmila B. Belykh, Nikita I. Skripov, Tatyana P. Sterenchuk, Vladlen V. Akimov, Vladimir L. Tauson, Tatyana A. Savanovich, Fedor K. Schmidt
APPLIED CATALYSIS A-GENERAL
(2020)
Article
Chemistry, Physical
L. B. Belykh, T. P. Sterenchuk, N. Skripov, V. V. Akimov, V. L. Tauson, A. S. Romanchenko, K. L. Gvozdovskaya, S. B. Sanzhieva, F. K. Shmidt
KINETICS AND CATALYSIS
(2019)
Article
Chemistry, Physical
N. I. Skripov, L. B. Belykh, T. P. Sterenchuk, K. L. Gvozdovskaya, V. V. Zherdev, T. M. Dashabylova, F. K. Schmidt
KINETICS AND CATALYSIS
(2020)
Article
Chemistry, Multidisciplinary
Yuliya Yu Titova, Tatyana Kon'kova, Boris G. Sukhov, Fedor K. Schmidt
MENDELEEV COMMUNICATIONS
(2020)
Article
Chemistry, Inorganic & Nuclear
Yuliya Yu Titova, Boris G. Sukhov, Fedor K. Schmidt
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2020)
Article
Chemistry, Physical
N. Skripov, L. B. Belykh, T. P. Sterenchuk, A. S. Levchenko, F. K. Schmidt
Summary: The study discriminated hypotheses about the inverse dependence of the turnover frequency of hydrogenation of unsaturated compounds on the catalyst concentration using kinetic methods combined with electron microscopy, identifying dissociation, equilibrium shift, and aggregation-disaggregation of Pd-P particles as contributing factors. The effect of aggregation-disaggregation of Pd-P particles on catalyst activity varied depending on the substrate, and the proposed kinetic model was consistent with experimental data for styrene hydrogenation.
KINETICS AND CATALYSIS
(2021)
Article
Chemistry, Inorganic & Nuclear
Lyudmila B. Belykh, Nikita I. Skripov, Tatyana P. Sterenchuk, Vladlen V. Akimov, Vladimir L. Tauson, Elena A. Milenkaya, Fedor K. Schmidt
Summary: The study indicates that the catalyst based on structurally disordered Pd-P nanoparticles shows high efficiency in the hydrogenation of 2-ethyl-9,10-anthraquinone for the preparation of hydrogen peroxide. Additionally, the Pd-P/C catalyst exhibits superior performance in terms of H2O2 yield compared to other known catalysts.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
N. Skripov, L. B. Belykh, T. P. Sterenchuk, T. A. Kornaukhova, E. A. Milenkaya, F. K. Schmidt
Summary: Efficient catalyst systems based on Pd-P particles have been proposed for the selective hydrogenation of 2-butyne-1,4-diol. The introduction of phosphorus and the use of poly(N-vinylpyrrolidone) increase the aggregative stability of the catalysts, leading to high activity and selectivity under mild conditions.
KINETICS AND CATALYSIS
(2022)
Article
Chemistry, Physical
Lyudmila B. Belykh, Nikita Skripov, Tatyana P. Sterenchuk, Tatyana A. Kornaukhova, Elena A. Milenkaya, Fedor K. Schmidt
Summary: This study applied competitive hydrogenation to analyze size effects and differentiate active sites. The analysis of phase trajectories showed that hydrogenation of terminal alkynes occurs on the same type of active sites, while hydrogenation of olefins takes place on at least two types of active sites.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Physical
Lyudmila B. Belykh, Nikita I. Skripov, Tatyana P. Sterenchuk, Fedor K. Schmidt
CATALYSIS COMMUNICATIONS
(2020)