Article
Nanoscience & Nanotechnology
Kaijia Li, Ruixuan Qin, Kunlong Liu, Wenting Zhou, Ning Liu, Yazhou Zhang, Shengjie Liu, Jie Chen, Gang Fu, Nanfeng Zheng
Summary: Treating Pt-based catalysts with CO at elevated temperature promotes the deposition of carbon species on the Pt surface, which inhibits dehalogenation reactions and enhances the hydrogenation activity of nitro groups. This treatment strategy effectively fabricates Pt-based catalysts on different supports for selective hydrogenation of a wide range of halogenated nitroaromatics.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Martijn J. Mekkering, Jasper Biemolt, Jeen de Graaf, Yi-An Lin, Nicolaas P. van Leest, Alessandro Troglia, Roland Bliem, Bas de Bruin, Gadi Rothenberg, Ning Yan
Summary: This study demonstrates that the agglomeration of isolated atom sites can be prevented by dissolution/exsolution of metal atoms into/from the support in the case of Rh/Al2O3 single-atom catalysts. A series of catalysts are designed, synthesised and characterised to study the impact of exsolution in the dry reforming of methane. The catalysts' performance improves with increasing reaction time due to the migration of rhodium atoms from the subsurface to the surface. The main factor affecting catalyst performance is atom migration, despite the changes in rhodium oxidation state during catalysis. The implications of these results for real-life catalyst preparation are discussed.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Cheng-Bin Hong, Guoliang Li, Haichao Liu
Summary: In this study, a novel green synthesis of piperidine from bio-renewable tetrahydrofurfurylamine (THFAM) is reported. The process involves the hydrogenolysis of THFAM to 5-amino-1-pentanol (APO) and the subsequent intramolecular amination of APO. SiO2-supported Rh-ReOx catalysts showed high efficiency and stability in converting THFAM to piperidine with a yield of 91.5% under the conditions of 200 degrees C and 2.0 MPa H-2 in water. The study provides an efficient strategy for the green production of piperidine and its derivatives from biomass resources.
Article
Chemistry, Physical
Hongwei Zhang, Lixiang Zhong, Ismail Bin Samsudin, Kazu Okumura, Hui-Ru Tan, Shuzhou Li, Stephan Jaenicke, Gaik-Khuan Chuah
Summary: In this study, stable subnanometric Rh particles were prepared in Mg-doped zeolite Beta based on electrostatic interaction. These particles showed high selectivity in the hydrogenation reaction of phenol, making them important intermediates for Nylon production.
JOURNAL OF CATALYSIS
(2022)
Review
Chemistry, Multidisciplinary
Boyang Liu, Yu Wang, Ning Huang, Xiaocheng Lan, Zhenhua Xie, Jingguang G. Chen, Tiefeng Wang
Summary: This review summarizes the developments of catalysts for heterogeneous hydroformylation in the last decade and proposes potential modification methods for future improvements. The hydroformylation properties of different reactants are compared in order to emphasize the unique challenges faced by various olefins. The catalytic properties can be tuned through electronic effects, steric hindrance, and reaction condition optimization.
Article
Multidisciplinary Sciences
Insoo Ro, Ji Qi, Seungyeon Lee, Mingjie Xu, Xingxu Yan, Zhenhua Xie, Gregory Zakem, Austin Morales, Jingguang G. Chen, Xiaoqing Pan, Dionisios G. Vlachos, Stavros Caratzoulas, Phillip Christopher
Summary: This study investigates the catalytic mechanism of ethylene hydroformylation using supported, atomically dispersed Rh-WOx pair sites. Through Rh-assisted WOx reduction, transfer of ethylene from WOx to Rh, and H2 dissociation at the Rh-WOx interface, the pair sites exhibit high activity and selectivity, demonstrating the potential of oxide-supported pair sites in industrial reactions performed with homogeneous catalysts.
Article
Engineering, Chemical
Wei Jiang, Jing-Pei Cao, Zi-Meng He, Chen Zhu, Xiao-Bo Feng, Xiao-Yan Zhao, Yun-Peng Zhao, Hong-Cun Bai
Summary: This study investigates a series of catalysts supported on a-Al2O3 and prepared with different metals for the hydrogenation of lignin derivatives at room temperature. Rh-1/a-Al2O3 catalyst exhibits the highest reaction rate and TOF value for diphenyl ether and toluene conversion. Characterization results suggest that dispersed Rh nanoparticles on a-Al2O3 support are responsible for hydrogen activation/dissociation and subsequent arenes hydrogenation. DFT calculation shows the stronger adsorption capacity of toluene and guaiacol on Rh (200) compared to Rh (111) and Rh (220). Stable Rh-1/a-Al2O3 catalyst contributes to the improvement of lignin derivatives hydrogenation at room temperature, promoting the production of high-value-added platform chemicals.
CHEMICAL ENGINEERING SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Xin Deng, Jiamin Wang, Naijia Guan, Landong Li
Summary: This article summarizes the recent progress in developing semi-hydrogenation catalysts, from traditional catalysts to intermetallic compounds and single-atom catalysts. The activation of dihydrogen during hydrogenation and the full hydrogenation mechanism, along with relevant research methodologies, are discussed. It provides a comprehensive overview on the catalysts and mechanisms of industrially relevant semi-hydrogenation processes, addresses some existing debates, and sheds light on future catalyst design for hydrogenation.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Polymer Science
Eduard Karakhanov, Anton Maximov, Anna Zolotukhina
Summary: This article reviews the recent advances and applications of dendritic catalysis in the past two decades, with a focus on heterogeneous dendrimer-based catalysts. Three main approaches to synthesizing immobilized heterogeneous dendrimer-based catalysts are considered, and magnetically separable dendritic catalysts are also discussed. These dendritic catalysts can be stored as powders and easily separated from the reaction medium, maintaining efficiency similar to homogeneous dendritic catalysts.
Article
Chemistry, Multidisciplinary
Jae-Won Jung, Kyeongseok Oh, Kwang-Deog Jung, Won Il Kim, Hyoung Lim Koh
Summary: A series of Rh-Sn/Al2O3 catalysts were prepared with varying amounts of Sn, and the 0.5Rh-1.5Sn/Al2O3 catalyst showed the best performance for both selective hydrogen combustion reactions. The characteristics of catalysts were analyzed by various methods such as CO chemisorption, XPS, TEM-EDX, and TPR.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Dario J. Segobia, Andres F. Trasarti, Carlos R. Apesteguia
Summary: The study found that the liquid-phase selective hydrogenation of benzonitrile to benzylamine on Ni/SiO2 was more active and selective compared to Co/SiO2 and Pd/SiO2. Increasing the temperature led to higher selectivity to benzylamine, while increasing reactant concentrations did not change the selectivity.
REACTION CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Applied
Ignacio Cuauhtemoc-Lopez, Adriana Jimenez-Vazquez, Luis Alberto Estudillo-Wong, Gilberto Torres-Torres, Hermicenda Perez-Vidal, Miroslava Barrera-Salgado, Rosendo Lopez-Gonzalez, Durvel De la Cruz-Romero
Summary: Two magnetic catalysts, Fe2O3-TiO2 support and Rh/Fe2O3-TiO2 catalyst, were synthesized and characterized for naphthalene hydrogenation. The Rh/Fe2O3-TiO2 catalyst showed high selectivity and conversion rate in the reaction, maintained even after multiple cycles.
Article
Chemistry, Physical
Hong Zhao, Jian Fang, Dan Xu, Jianfeng Li, Boyang Li, Huacheng Zhao, Zhengping Dong
Summary: This study successfully prepared atomically dispersed Fe-N@HCS-T single-atom catalysts through a multistep protection strategy, demonstrating excellent activity, selectivity, stability, and recyclability. Factors such as pre-separation, anchoring effect, and support structure play crucial roles in achieving atomic dispersion.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Review
Energy & Fuels
Haihong Xia, Jing Li, Minghao Zhou
Summary: This paper discusses the influence factors and reaction mechanisms of different catalyst types on the hydrogenation processes of HMF, a significant platform chemical derived from biomass. The latest progress on the efficient catalytic system using hydrogen, alcohol, and other hydrogen sources to catalyze HMF is introduced. Future research prospects of catalytic hydrogenation of HMF are also discussed.
Article
Chemistry, Multidisciplinary
Ruth D. Mojica Sepulveda, Luis J. Mendoza Herrera, Delia B. Soria, Virginia Vetere, Eduardo E. Grumel, Carmen I. Cabello, Marcelo Trivi, Myrian C. Tebaldi
Summary: We investigated the influence of various physical-chemical parameters on the selective reaction of acetophenone hydrogenation using different nickel catalysts on clinoptilolite supports. The aim of this study is to identify the combination of parameters that allows for obtaining the best catalytic results.
Article
Chemistry, Physical
Junya Ohyama, Daiki Abe, Airi Hirayama, Hiroki Iwai, Yuka Tsuchimura, Kazuki Sakamoto, Momoka Irikura, Yuri Nakamura, Hiroshi Yoshida, Masato Machida, Shun Nishimura, Tomokazu Yamamoto, Syo Matsumura, Keisuke Takahashi
Summary: The catalytic oxidation of methane to formaldehyde and methanol is a promising process due to its energy efficiency advantage. However, selectively obtaining partial oxidation products in the direct oxidation of methane is challenging. In this study, Co/SiO2 materials with different Co loadings were used and it was found that low loading of Co (<0.1 wt%) showed high selectivity for partial oxidation, mainly producing formaldehyde, while high Co loadings promoted complete oxidation. Structural analysis suggested that single Co atoms at low loadings were effective in selective oxidation, while Co3O4 nanoparticles at high loadings promoted complete oxidation.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Junya Ohyama, Yuka Tsuchimura, Airi Hirayama, Hiroki Iwai, Hiroshi Yoshida, Masato Machida, Shun Nishimura, Kazuo Kato, Keisuke Takahashi
Summary: The catalytic performance of Cu zeolites for the direct conversion of methane to methanol was investigated. The reduction rate of Cu-CHA was found to be highly correlated with catalytic activity. The reduction of Cu2+ is associated with the activation of C-H bonds in CH4, which is the rate-determining step for the reaction. The local structure of Cu-CHA affects selectivity, turnover frequency, and Cu2+ reduction rate.
Article
Chemistry, Physical
Masato Machida, Shundai Iwashita, Tetsuya Sato, Hiroshi Yoshida, Junya Ohyama, Masao Yoshioka, Shiro Miwa, Takeshi Hashishin
Summary: This study found that Rh catalysts supported on Al2O3-based oxides lose their catalytic activity when exposed to high-temperature oxidizing environments. The diffusion of Rh3+ ions into the support structure causes substantial thermal deactivation. However, the layered structure of LaMgAl11O19 hinders the diffusion of Rh3+, preserving the catalytic activity.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Ayumi Fujiwara, Yutaro Tsurunari, Shundai Iwashita, Hiroshi Yoshida, Junya Ohyama, Masato Machida
Summary: In three-way catalytic converters, perturbations in exhaust gas composition between fuel-rich and fuel-lean conditions affect catalyst surface and conversion efficiencies. In this study, real-time changes in surface states of Pd-based catalysts were monitored using in situ diffuse reflectance spectroscopy. The oxidation state of Pd fluctuated in sync with the perturbations, with smaller oscillation amplitude on CeO2-ZrO2 (CZ) compared to Al2O3. CZ's oxygen scavenging function buffered oxidative degradation, resulting in higher reaction rates and preventing coke deposition. This study highlights the usefulness of in situ DRS in understanding transient catalytic processes and bridging the gap between on-board performances and laboratory tests.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Junya Ohyama, Yuka Tsuchimura, Hiroshi Yoshida, Masato Machida, Shun Nishimura, Keisuke Takahashi
Summary: The catalytic performance of Cu-CHA catalysts for partial CH4 oxidation was improved through refinement of catalyst composition using the Bayesian optimization method. Experimental validation showed that optimization of Cu-ion exchange rates (Cu IERs) and Si/Al2 ratios was achieved in only two cycles of the Bayesian optimization process.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Taiki Hirakawa, Yuma Miyahara, Yushi Shimokawa, Koshi Nishiyama, Masayuki Tsushida, Hiroshi Yoshida, Junya Ohyama, Masato Machida
Summary: In this research, various quaternary metal catalysts were investigated for the replacement of precious metals in three-way catalysts. The CrFeNiCu system demonstrated the best catalytic performance, achieving a lower light-off temperature for CO, C3H6, and NO compared to a reference catalyst. Structural analysis revealed that the catalyst underwent structural changes during the catalytic reaction. The presence of Cr oxide significantly enhanced CO/C3H6 oxidation and promoted the regeneration of the active NiCu metallic surface for NO reduction.
Article
Energy & Fuels
Yuka Tsuchimura, Hiroshi Yoshida, Masato Machida, Shun Nishimura, Keisuke Takahashi, Junya Ohyama
Summary: Cu-CHA exhibits high catalytic performance in the direct oxidation of CH4 to CH3OH. The catalytic activity varies with the composition of Cu-CHA. Three groups of Cu species were identified based on their catalytic performance: low Cu/Al ratio for high selectivity and low activity, medium Cu/Al ratio for high selectivity and high activity in CH3OH production, and high Cu/Al ratio for high activity in complete oxidation of CH4 to CO2. The mono-(mu-oxo) di-Cu species in Cu-CHA is proposed as the active species for the catalytic reaction.
Article
Engineering, Chemical
Shundai Iwashita, Ayumi Fujiwara, Hiroshi Yoshida, Junya Ohyama, Takeshi Miki, Masato Machida
Summary: The thermal deactivation mechanism of Pd/CeO2-ZrO2-Al2O3 three-way catalysts (TWCs) was investigated through engine-bench aging and driving tests. The results showed that high temperature and prolonged aging promoted the growth of Pd particles, leading to a decrease in catalytic activity. A sintering kinetic model was developed to predict TWC deactivation and lifetime based on the analysis of particle growth kinetics.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Masato Machida, Hideto Yoshida, Naoto Kamiuchi, Yasuhiro Fujino, Takeshi Miki, Masaaki Haneda, Yutaro Tsurunari, Shundai Iwashita, Rion Ohta, Hiroshi Yoshida, Junya Ohyama, Masayuki Tsushida
Summary: Under dynamic SLR cycle conditions, the Rh/ZrO2-CeO2 (Rh/ZC) three-way catalyst experienced more severe deactivation compared to static conditions. The complete encapsulation of Rh particles with a ZC overlayer under dynamic SLR cycle conditions led to physical blockage and suppressed catalytic activity. This encapsulation phenomenon was not recovered by post-treatment in air at 1000 degrees C.
Article
Chemistry, Physical
Junya Ohyama, Hideto Ushijima, Takashi Yamashita, Akihiro Yamashita, Hiroshi Yoshida, Masato Machida
Summary: Improving the catalysts for hydrogen oxidation reaction (HOR) in alkaline conditions is crucial for the development of anion exchange membrane fuel cells. Previous studies have shown that Pt catalysts can be enhanced by forming coordinationally saturated surface sites and also by combining Pt with other metals. This study demonstrates the use of Pt-Ni alloy thin films as highly active structures in alkaline HOR, with improved activity compared to Pt monometal thin-film and nanoparticle catalysts.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Masato Machida, Hideto Yoshida, Naoto Kamiuchi, Yasuhiro Fujino, Takeshi Miki, Masaaki Haneda, Yutaro Tsurunari, Shundai Iwashita, Rion Ohta, Hiroshi Yoshida, Junya Ohyama
Summary: This study investigates the performance of catalysts after real engine aging and finds that pre-aged catalysts can maintain better catalytic performance at high temperatures. It is found that the migration of Rh nanoparticles from the ZC surface to the Al2O3 binder interface plays a crucial role in mitigating the encapsulation of Rh nanoparticles by ZC. By using a dual-oxide support formulation, the deterioration extent of the catalyst and the oxygen storage capacity performance can be effectively improved.
ACS APPLIED NANO MATERIALS
(2023)
Review
Chemistry, Physical
Hiroshi Yoshida, Masato Machida
Summary: Although most solid catalysts have a three-dimensional structure of nanoparticles dispersed on a porous support, this structure is not optimal for all catalytic reactions. This article introduces a unique catalytic performance of a two-dimensional metal foil-supported nanometric Rh thin film, which is particularly suitable for CO-NO reaction and three-way catalytic reaction.
Article
Chemistry, Physical
Masato Machida, Hideto Yoshida, Naoto Kamiuchi, Yasuhiro Fujino, Takeshi Miki, Masaaki Haneda, Yutaro Tsurunari, Shundai Iwashita, Rion Ohta, Hiroshi Yoshida, Junya Ohyama, Masayuki Tsushida
Summary: A Rh/ZrO2-CeO2 (Rh/ZC) three-way catalyst exhibited more severe deactivation under dynamic SLR cycle conditions compared to static conditions. The total encapsulation of Rh particles by a ZC overlayer led to physical blockage and suppressed catalytic activity. The encapsulation under a dynamic SLR cycle condition suggests the activation of ZC migration near the metal-support interface.
Article
Chemistry, Physical
Hiroki Iwai, Fumiya Nishino, Tomokazu Yamamoto, Masaki Kudo, Masayuki Tsushida, Hiroshi Yoshida, Masato Machida, Junya Ohyama
Summary: Researchers have successfully predicted and removed the background image of supported metal nanoparticles using a deep learning-based image inpainting method. The 3D reconstruction of the extracted images reveals the atomic structure and deformed shape of the nanoparticles, providing insights into their catalytic activity. This study demonstrates the importance of 3D atomic-scale analysis in understanding and designing supported metal catalysts.
Article
Materials Science, Ceramics
Alam S. M. Nur, Asuka Ikematsu, Hiroshi Yoshida, Masato Machida
Summary: Molten-state potassium metavanadate supported on mesoporous SiO2 materials is an active catalyst for SO3 decomposition, and the addition of phosphate can enhance its catalytic activity and form mixed phosphate vanadate KV2PO8.
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
(2022)
Article
Chemistry, Multidisciplinary
Xuemei Liu, Chaonan Cui, Shuoshuo Wei, Jinyu Han, Xinli Zhu, Qingfeng Ge, Hua Wang
Summary: This study presents a new strategy for designing efficient photocatalysts that can convert CO2 into hydrocarbons by utilizing synergistic catalytic sites. The findings provide a solution for the selective photocatalytic reduction of CO2 to CH4.
Article
Chemistry, Multidisciplinary
Chengxian Hu, Dan Wang, Lu Wang, Ying Fu, Zhengyin Du
Summary: A novel one-pot, three-component reaction conducted under electrochemical conditions was studied. The reaction involved 2-aminothiophenols, aldehydes, and malononitrile, using TBABF4 as an electrolyte and CuI as a catalyst. The proposed reaction mechanism suggested that CuI served as an electron relay. This method offers simplified operation, high atom economy, and mild reaction conditions.
Article
Chemistry, Multidisciplinary
Zhi Yang, Yu Chen, Linxi Wan, Yuxiao Li, Dan Chen, Jianlin Tao, Pei Tang, Fen-Er Chen
Summary: A highly enantioselective method for the complete hydrogenation of pyrimidinium salts using Ir/(S,S)-f-Binaphane complex as the catalyst was developed. This method provides easy access to fully saturated chiral hexahydropyrimidines, which are prevalent in many bioactive molecules. The reactions exhibit high yields and enantioselectivities under mild reaction conditions without additives. Successful application of this methodology in a continuous flow fashion further extends its practical utility.
Article
Chemistry, Multidisciplinary
Tina Jeoh, Jennifer Danger Nill, Wujun Zhao, Sankar Raju Narayanasamy, Liang Chen, Hoi-Ying N. Holman
Summary: In this study, the enzymatic hydrolysis of cellulose was investigated using real-time infrared spectromicroscopy. The spatial heterogeneity of cellulose was found to impact the hydrolysis kinetics. Hydration affected cellulose ordering, and Cel7A preferentially removed less extensively hydrogen bonded cellulose.
Article
Chemistry, Multidisciplinary
Tiphaine Richard, Walid Abdallah, Xavier Trivelli, Mathieu Sauthier, Clement Dumont
Summary: An effective method of grafting functionalities onto lignin based on glycerol carbonate has been developed using an efficient nickel-catalysed telomerisation reaction. This method allows lignin to have new reactive functions and reduces the glass transition temperatures of modified lignins, thereby expanding the application range of lignin-based resins.
Article
Chemistry, Multidisciplinary
Jing Qi, Xiyan Wang, Gan Wang, Srinivas Reddy Dubbaka, Patrick ONeill, Hwee Ting Ang, Jie Wu
Summary: This study presents a green and environmentally friendly approach for the synthesis of imides using electrocatalytic oxidation with H2O as the oxygen source. The method eliminates the need for toxic or expensive oxidants and achieves high yields under mild reaction conditions. It shows broad substrate compatibility and potential for industrial applications.
Article
Chemistry, Multidisciplinary
Babasaheb Sopan Gore, Lin-Wei Pan, Jun-Hao Lin, Yi-Chi Luo, Jeh-Jeng Wang
Summary: Here, we report a visible light-promoted intramolecular radical cascade reaction for the construction of fluorenol and naphthalene-fused cyclopropyl carbaldehyde derivatives. This method offers mild reaction conditions, a broad substrate scope, excellent step efficiency, and scalability, without the need for external chemical oxidants. The novelty of this protocol was demonstrated by synthesizing chrysene analogs and performing late-stage functionalizations.
Article
Chemistry, Multidisciplinary
Juho Antti Sirvio, Idamaria Romakkaniemi, Juha Ahola, Svitlana Filonenko, Juha P. Heiskanen, Ari Ammala
Summary: This article discusses the method of using supramolecular interaction between an aromatic hydrogen bond donor and lignin to achieve rapid delignification of softwood at low temperatures.
Article
Chemistry, Multidisciplinary
Yunyan Meng, Chunxiang Pan, Na Liu, Hongjiang Li, Zixiu Liu, Yao Deng, Zixiang Wei, Jianbin Xu, Baomin Fan
Summary: A novel visible light-driven synthesis method for 2,3-diamines has been developed, which has mild conditions, avoids the use of metal reagents, and can synthesize diamines and diols in one pot.
Article
Chemistry, Multidisciplinary
Mingqing Huang, Haiyang Huang, Mengyao You, Xinxin Zhang, Longgen Sun, Chao Chen, Zhichao Mei, Ruchun Yang, Qiang Xiao
Summary: A direct air-oxidized strategy for the synthesis of benzo[b]phosphole oxides was developed in this study. Arylphosphine oxides were transformed into phosphinoyl radicals, which were further combined with various alkynes to achieve the desired products. DFT calculations revealed the mechanism of phosphinoyl radical formation.
Article
Chemistry, Multidisciplinary
Anwei Wang, Jiayin Huang, Chunsheng Zhao, Yu Fan, Junfeng Qian, Qun Chen, Mingyang He, Weiyou Zhou
Summary: This study demonstrates an innovative strategy for the aerobic oxidation of C(sp(3))-H bonds using gamma-valerolactone. By optimizing the reaction conditions and utilizing specific catalysts, efficient oxidation of C(sp(3))-H bonds is achieved with good chemoselectivity in certain cases.
Article
Chemistry, Multidisciplinary
Shun Li, Likai Tong, Zhijian Peng, Bo Zhang, Xiuli Fu
Summary: Sulfide compounds show promise as electrocatalysts for water splitting, but their performance is limited by factors such as limited active sites and hindered substance transport. This study successfully prepared a high-entropy sulfide (ZnCoMnFeAlMg)(9)S-8, which reduced grain size and increased specific surface area, enabling the realization of a dual-functional catalyst with multiple catalytic sites. High entropy also modulated the electronic properties of sulfides, reducing the potential energy barrier for hydrolysis. This research introduces a new approach for functionalizing high entropy nanomaterials and improves the performance of water splitting catalysts.