Article
Chemistry, Physical
Fengli Wang, Mingsheng Luo, Qinglong Liu, Changke Shao, Zhi Yang, Xinyue Liu, Jiakun Guo
Summary: Chemical hydrogen storage is important for hydrogen fuel cell applications, and catalysts play a crucial role in developing effective hydrogen production processes. Platinum is a superior catalyst for decalin dehydrogenation, and modifying the support can enhance catalysis. The study systematically investigated the effects of different supports, preparation methods, and Mg/Al molar ratio on the material properties and catalytic performance of Pt catalysts. The results showed that the MgAl2O4 support was more suitable for improving Pt dispersion and forming smaller Pt nanoparticles. Pt/MgAl2O4 with a Mg/Al molar ratio of 0.5, prepared using the alcohol-heating method, exhibited superior performance, which was closely related to the Pt nanoparticle size and reaction state. The initial ratio of decalin to catalyst also played an important role in the activity and achieved optimal performance in the liquid-film state.
Article
Chemistry, Physical
M. P. J. M. Van der Ham, T. J. P. Hersbach, J. J. Delgado, B. D. Matson, J. Lim, M. Fuhrer, T. Van Haasterecht, M. W. G. M. Verhoeven, E. J. M. Hensen, D. Sokaras, M. T. M. Koper, J. H. Bitter
Summary: The support effects in electrocatalytic reactions of Pt supported on carbon nanofiber catalysts were studied. It was found that the activity of these catalysts for electrocatalytic glucose oxidation linearly depends on the content of oxygen groups on the surface of the CNF. Sorption effects of glucose were identified as playing a crucial role in catalytic activity, independent of the electronic state of Pt and Pt surface structure.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Linlin Wang, Xuetao Qin, Ting Sun, Xiangbin Cai, Mi Peng, Zhimin Jia, Xiaowen Chen, Ning Wang, Jiangyong Diao, Hongyang Liu, Ding Ma
Summary: This study focuses on the improvement of the direct dehydrogenation process of ethylbenzene by fabricating fully-exposed Pt clusters on a Sn-ND@G hybrid support. The fully-exposed Pt clusters enhance the catalytic performance and maintain good stability at 500 degrees Celsius.
Article
Energy & Fuels
Larissa Brito, Gerhard D. Pirngruber, Emanuelle Guillon, Florian Albrieux, Johan A. Martens
Summary: The study on hydroisomerization and hydrocracking of octylcyclohexane using a bifunctional Pt/USY zeolite catalyst reveals a kinetic competition between isomerization and cracking, leading to favorable cracking distribution upon molecule tribranching.
Article
Multidisciplinary Sciences
Huan Yan, Kun He, Izabela A. Samek, Dian Jing, Macy G. Nanda, Peter C. Stair, Justin M. Notestein
Summary: The study demonstrated that growing In2O3 over Pt/Al2O3 using atomic layer deposition results in a nanostructure that kinetically couples domains through surface hydrogen atom transfer, improving the selective oxidative dehydrogenation of propane. In contrast, other nanostructures, such as Pt on In2O3 or Pt mixed with In2O3, were unable to organize the reactions effectively, resulting in more propane combustion.
Article
Chemistry, Physical
Marlene Fuhrer, Tomas van Haasterecht, Nazila Masoud, Dean H. Barrett, Tiny Verhoeven, Emiel Hensen, Moniek Tromp, Cristiane B. Rodella, Harry Bitter
Summary: The influence of support-oxygen groups and Pt particle size on the catalytic performance of Pt/AC in the oxidation of alpha-D-glucose to gluconic acid was studied. The presence of oxygen-containing groups significantly enhanced the activity for smaller Pt particle size, but did not have a significant effect for larger Pt particle size.
Article
Energy & Fuels
Ameen A. Al-Muntaser, Mikhail A. Varfolomeev, Muneer A. Suwaid, Mujtaba M. Saleh, Richard Djimasbe, Chengdong Yuan, Rustem R. Zairov, Jorge Ancheyta
Summary: The effect of decalin as a hydrogen-donor on the catalytic and non-catalytic hydrothermal upgrading of heavy crude oil was studied. The use of decalin in the presence of nickel-based catalyst (nickel (II) stearate) showed good conversion and promoted in situ upgrading of heavy crude oil. The addition of decalin and Ni-stearate resulted in high viscosity reduction, increased saturates content, decreased resins and asphaltenes content, and removal of sulfur and nitrogen from the crude oil.
Article
Chemistry, Inorganic & Nuclear
Xiaolong Guo, Xinyu Zhang, Yong Wu, Yuci Xin, Dongmei Li, Yuxin Zhang, Peng Yu
Summary: Spinel copper cobaltite (CuCo2O4), as a bifunctional oxygen electrocatalyst, has attracted significant research interest due to its tailored electronic structure and adjustability of active area. However, its poor oxygen evolution reaction (OER) performance hinders its practical use in rechargeable zinc-air batteries. Therefore, researchers have constructed a CuCo2O4/NiFe LDH oxide/hydroxide interface to enhance OER activity and reduce charging overpotential. The achieved electrocatalysts show improved OER performance, resulting in high round-trip efficiency and low voltage gap in zinc-air batteries.
DALTON TRANSACTIONS
(2023)
Review
Chemistry, Multidisciplinary
Yanrong Liu, Jiayao Cui, Hao Wang, Ke Wang, Yuan Tian, Xiaoyi Xue, Yueyang Qiao, Xiaoyan Ji, Suojiang Zhang
Summary: Hydrogen is considered a key way to decarbonize various sectors, and water electrolysis driven by renewable energy is a sustainable method for hydrogen production. Storage and transportation are important issues for hydrogen utilization, and hydrogen can be stored in organic compounds under mild conditions. Ionic liquids (ILs) offer new opportunities due to their tunable functional groups and stable structures, and can be used as additives, solvents, and charge transfer materials. This review summarizes the recent progress of ILs in supporting the production, storage, and utilization of hydrogen, and outlines future research directions and challenges.
Article
Chemistry, Analytical
Xianyou Luo, Haoming Xiao, Junyi Li, Ping Yuan, Baodong Du, Heng Zheng, De Li, Yong Chen
Summary: The oxygen functionalization of carbon support was explored to improve the catalytic performance of carbon-supported Pt catalysts. The introduction of hydroxyl groups and cyclic ethers enhanced the HER activity and stability of Pt/C catalysts.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Yu-Xuan Xiao, Jie Ying, Jiang-Bo Chen, Yuan Dong, Xiong Yang, Ge Tian, Jinsong Wu, Christoph Janiak, Kenneth Ozoemena, Xiao-Yu Yang
Summary: The heavy d-pi effect is an important theoretical model for strong Pt-C interaction, and confining Pt nanoparticles within N-doped carbon can enhance this effect. In this study, confined ultrafine Pt-NPs in N-doped porous carbon fibers were successfully synthesized and showed outstanding catalytic activity and durability in the hydrogen evolution reaction.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Gaoxin Lin, Qiangjian Ju, Yan Jin, Xiaohuan Qi, Weijing Liu, Fuqiang Huang, Jiacheng Wang
Summary: In this study, the dissolution of Pt nanoparticles was successfully suppressed by adjusting the electronic structure of surface Pt atoms, leading to enhanced catalytic stability. The specially designed graphitic-N-doped carbon nanosheets effectively reduced the rate of Pt dissolution by anchoring Pt nanoparticles.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Applied
Yaoxin Wang, Jiandian Wang, Ping Zheng, Changyong Sun, Junyin Luo, Xiaowei Xie
Summary: The Pt/BN catalyst shows high coke resistance and propylene selectivity due to the absence of acidity on the BN support and the strong metal-support interaction between Pt and BN. The encapsulation of Pt particles by BOx overlayers effectively suppresses side reactions and inhibits Pt sintering, providing a rational design strategy for BN-based catalysts.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Engineering, Chemical
Yanyong Li, Meng Ge, Jiameng Wang, Mengquan Guo, Fanji Liu, Mingxun Han, Yanhong Xu, Lihong Zhang
Summary: The presence of LaAlO3 perovskite enhances the performance of Pt-Cu bimetallic catalysts, improving the dispersion of metal nanoparticles and reducing sintering. This ultimately leads to higher reaction conversion rates and selectivity.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
J. C. Ortiz-Herrera, H. Cruz-Martinez, O. Solorza-Feria, D. Medina
Summary: Support materials play a significant role in the performance of catalysts for the oxygen reduction reaction. Carbon nanotubes (CNTs) have emerged as a promising alternative due to their excellent properties. Catalysts supported on CNTs exhibit better oxidation resistance, higher catalytic performance, and greater durability compared to those supported on carbon black.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Zhaohui Chen, Yasi Mo, Dong Lin, Yongxiao Tuo, Xiang Feng, Yibin Liu, Xiaobo Chen, De Chen, Chaohe Yang
Summary: Efficient carbon material with enhanced mass transfer ability was constructed from vacuum residuum through a one-pot synthesis process. Hollow carbon cubes were successfully synthesized using CTAB surfactant to emulsify and form oil-in-water suspension particles. The metal-free catalyst showed good catalytic stability and high selectivity towards direct electrochemical production of hydrogen peroxide.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Li'an Peng, Yongxiao Tuo, Yan Lin, Cuiping Jia, Shutao Wang, Yan Zhou, Jun Zhang
Summary: This study presents a two-step solvent-thermal method to synthesize phosphorus-doped nickel sulfide nanocrystals and evaluates their electrochemical performance. The results show that phosphorus doping successfully improves the electrical conductivity of nickel sulfide and increases the number of electrochemical active sites, leading to enhanced electrode performance.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Fengchao Sun, Yan Zhou, Zihan You, Hanhan Xia, Yongxiao Tuo, Shutao Wang, Cuiping Jia, Jun Zhang
Summary: The sandwich-structured Fe3O4/Au/CoFe-LDH exhibits excellent electrocatalytic activity and stability for both hydrogen evolution and glucose oxidation reactions. The composite catalyst shows promising performance even at high current densities.
Article
Chemistry, Physical
Qing Lu, Chen Chen, Qian Di, Wanli Liu, Xiaohui Sun, Yongxiao Tuo, Yan Zhou, Yuan Pan, Xiang Feng, Lina Li, De Chen, Jun Zhang
Summary: Efficient and stable electrocatalysts are crucial for the electrocatalytic CO2 reduction reaction (CO2RR) into chemical products. In this study, a NC@Ni/C nano-composite with a core-shell structure was developed as an effective electrocatalyst for CO2RR to CO over a wide potential range. The catalyst exhibited high CO Faradaic efficiency and excellent stability, primarily attributed to the pyridinic-N doping in the carbon shell of Ni NPs.
Article
Materials Science, Multidisciplinary
Jiabing Luo, Yan Zhou, Yongxiao Tuo, Yufeng Gu, Xingzhao Wang, Qianyu Guo, Chen Chen, Dong Wang, Shutao Wang, Jun Zhang
Summary: This study successfully synthesized ultra-small Co3S4-MoS2 heterostructure catalyst and found that it exhibited excellent activity and stability in the electrocatalytic hydrogen evolution reaction. The outstanding performance of this heterostructured catalyst is attributed to its unique ultra-small hollow structure and the rapid electron transfer between Co3S4 and MoS2.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Physical
Fengyue Sun, Lingyu Yang, Changle Yue, Yang Liu, Wenjing Bao, Yongxiao Tuo, Xiang Feng, Yukun Lu
Summary: This study utilized Strandberg-type polyoxometalate as pre-assembled molecular platforms to construct and regulate NiMoS active sites at the atomic level. O,P doping was performed to boost the number of active sites using a controllable sulfidation method, resulting in O,P-NiMoS nanoparticles with significant catalytic activity. This research provides a feasible strategy for the rational design of efficient electrocatalysts for renewable energy applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Applied
Yan Lin, Xiaomeng Chen, Yongxiao Tuo, Yuan Pan, Jun Zhang
Summary: In this study, NiCoP/S nanocrystals were synthesized using a novel method and exhibited excellent hydrogen evolution reaction (HER) and supercapacitor performance in a wide pH range. The findings provide new insights into the modulation of electronic structure and lattice strain for electrocatalytic and energy storage applications.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Engineering, Environmental
Kaihao Fu, Xinjie Wang, Ping Li, Chenxi Cao, Wenli Du
Summary: In this study, a multi-objective optimization model was established for hierarchical numbering-up of modular reactors, considering flow uniformity, flow resistance, and device volume as optimization objectives. Through an evolutionary optimization algorithm, it was found that appropriate adjustment of reaction channel sizes and hierarchical channel layouts are crucial for achieving large-scale applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Yongxiao Tuo, Ying Meng, Qing Lu, Qing Wang, Furong Jia, Yan Zhou, Xiang Feng, Jun Zhang, Xuezhi Duan, De Chen
Summary: A generic strategy to continuously tailor the Pt 5d state occupancy through manipulating the Pt-O-Mn electronic linkage was presented in this study. By increasing the Mn valence, the occupancy of Pt 5d state decreases, leading to a lower C-H activation energy barrier but a higher product desorption energy barrier. An intermediate Pt 5d filling of approximately 8.4 in Pt-Mn2O3/Al2O3 enables a balanced level of product desorption and C-H activation, ensuring superior dehydrogenation activity.
Article
Thermodynamics
Liu Yang, Zhejie Ma, Quanquan Gan, Qi Zhang, Ping Li, Chenxi Cao
Summary: Replacing conventional catalyst support with meso-porous carbon in PEMFC can improve catalyst usage and cell performance. However, the mechanism for this enhancement is not fully understood, hindering further optimization. This study proposes a unified agglomerate model for catalyst layers with different carbon supports, applicable for normal and cold-start conditions. Parametric study shows that Ketjenblack as a porous carbon support enables easier cold start but slightly decreases nominal cell performance, and fine-tuning its properties is crucial for maximizing catalyst layer effectiveness.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Chemistry, Physical
Jingwen Li, Chengyun Ma, Xinle Geng, Yongxiao Tuo, Ruoxuan Sun, Huiping Du, Meng-Chang Lin, Mian Cai
Summary: The design of binder materials plays a crucial role in improving charge or mass transport in battery electrodes. However, there is a lack of design rules for aluminum-ion batteries. In this study, we applied chloric polycation binders to high-loading graphite cathodes, which enhanced ionic transport through in situ polycation-AlCl4- networks. We found that conjugated unit doping effectively improved adhesive properties and resulted in improved electrochemical performance in terms of area-specific capacity, energy efficiency, rate capability, and long-term cycling stability.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Inorganic & Nuclear
Lili Fan, Ling Zhang, Xuting Li, Hao Mei, Mengfei Li, Zhanning Liu, Zixi Kang, Yongxiao Tuo, Rongming Wang, Daofeng Sun
Summary: A model catalyst with both Fe-N-x sites and Fe clusters is successfully synthesized, showing efficient oxygen reduction reaction (ORR) performance in an alkaline environment. The synergistic catalytic mechanism between Fe-N-x sites and Fe clusters is revealed, highlighting the importance of both components in catalysis.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Zhuojun Yang, Yongxiao Tuo, Qing Lu, Chen Chen, Mengshan Liu, Bingyan Liu, Xuezhi Duan, Yan Zhou, Jun Zhang
Summary: This paper reports the fabrication of hierarchical copper phosphide nanoarrays as electrocatalysts for overall water splitting. The Cu3P/NF electrode exhibits good catalytic activity and stability for both oxygen evolution reaction and hydrogen evolution reaction, with low overpotential.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Yongxiao Tuo, Qing Lu, Chen Chen, Tenglong Liu, Yuan Pan, Yan Zhou, Jun Zhang
Summary: PtCu bimetallic nanoparticles were prepared to optimize the utilization of Pt atoms in hydrogen evolution reaction. The Pt1Cu3 catalyst showed enhanced catalytic performance and good stability, indicating potential for the rational design of efficient and durable hydrogen evolution catalysts with low Pt content.