Article
Engineering, Environmental
Yao Sheng, Yang Liu, Yuchen Yin, Xiujing Zou, Jiaan Ren, Baoqin Wu, Xueguang Wang, Xionggang Lu
Summary: A activated carbon supported Pt-Rh alloy catalyst was synthesized using a facile incipient wetness impregnation strategy, and showed improved activity and selectivity for the hydrogenation of nitrobenzene to p-aminophenol. The presence of Rh promoted the formation of well dispersed Pt-Rh bimetallic nanoparticles on the catalyst surface, accompanied by possible electron transfer from Rh to Pt. Density functional theory calculations indicated that the electron-rich Pt inhibited the adsorption of the generated phenylhydroxylamine intermediate, resulting in excellent selectivity for p-aminophenol.
CHEMICAL ENGINEERING JOURNAL
(2023)
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
Nanoscience & Nanotechnology
Yinhuan Zhou, Yilin Zheng, Chenlin Lu, Basudev Maity, Yakui Chen, Takafumi Ueno, Zheng Liu, Diannan Lu
Summary: Synthesis of apo-ferritin-caged Pt nanoparticles at room temperature is able to efficiently convert p-chloronitrobenzene to p-chloroaniline with high selectivity of 99% and inhibit dechlorination reactions. The catalysts show a ten times higher TOF value compared to unloaded platinum nanocatalyst, and the unique size effect and electronic effect due to the interaction between apo-ferritin and platinum are the main reasons for the performance enhancement.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Fan Lin, Yubing Lu, Kinga A. Unocic, Susan E. Habas, Michael B. Griffin, Joshua A. Schaidle, Harry M. Meyer, Yong Wang, Huamin Wang
Summary: The study provides a deep understanding of the impact of K on a bifunctional Pt/TiO2 catalyst, showing that at low K loadings, K preferentially poisons strong Lewis acid sites, significantly affecting acid-catalyzed alcohol dehydration, but less so acetone condensation. At high K loadings, K accumulates on the Pt-TiO2 interfacial area, poisoning active sites for HDO and CO oxidation reactions. It was found that the poisoning of the Pt/TiO2 catalyst by K is reversible, and water washing can successfully remove the accumulated K and recover the catalyst activities.
Article
Chemistry, Multidisciplinary
Hongbo Yu, Zhiyong Yu, Fan Yang, Xuedong Yan, Hongfeng Yin
Summary: WO3-x nanowires with oxygen vacancies were synthesized as supports for Pt nanoparticles (NPs) via a deposition-reduction method. The resulting Pt/WO3-x nanocomposites showed excellent catalytic hydrogenation performance in the selective hydrogenation of p-chloronitrobenzene due to the interaction between Pt NPs and WO3-x nanowires.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Dan Liu, Ismail Nadia, Chaohe Fang, Kuan He, Binghui Ge, Hailong Chen, Zhuo Chen
Summary: This study demonstrates the photo-enhanced catalytic activity for the hydrogenation of nitrobenzene. Compared to the counterpart without light irradiation, the catalytic reaction rate significantly improves under simulated sunlight, achieving better catalytic performance. Further mechanism investigations reveal that light illumination promotes the activation of hydrogen and nitrobenzene molecules, resulting in high-efficiency hydrogenation.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Nanoscience & Nanotechnology
Tingting Liu, Zizhu Wang, Mingxi Liu, Tao Hu, Shenghu Zhou
Summary: This study presents a simple method to construct hollow silica nanotubes using a templating approach. By coordinating metal ions with bis-terpyridine, polymeric bis-terpyridine-metal complexes are formed and self-assemble into tubular organogels. The subsequent silica deposition and calcination result in metal oxide-doped hollow silica nanotubes. The obtained nanotubes show good catalytic performance and can be used as catalyst supports due to their favorable textural properties.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Jie Luo, Chaojie Zhang, Chong Yao, Dandan Ma, Yixin Chen, Min Tian, Haoxuan Xie, Limei Pan, Yaoyao Zhen, Ruihao Chen, Jiwei Wu, Chunshan Lu, Feng Feng, Xiaoliang Xu, Qingtao Wang, Qunfeng Zhang, Xiaonian Li
Summary: This study investigated the effect of S-doping on the catalytic performance of platinum-based catalyst for the selective hydrogenation of nitrobenzene to produce p-Aminophenol. The activated carbon carrier was modified using high-temperature calcination and an impregnation technique incorporating organic sulfur. The amount of sulfur doping was found to impact the particle size and performance of the catalyst. The strong interaction between S and Pt resulted in the capture of Pt electrons, reducing catalyst reactivity and suppressing over-hydrogenation side reactions, leading to improved selectivity towards p-Aminophenol formation.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Physical
Lin Fu, Wei Zhou, Ming Wen, Qingsheng Wu, Weiying Li, Dandan Wu, Quanjing Zhu, Jiaqi Ran, Panpan Ren
Summary: Layered CuNi-Cu2O/NiAlOx nanosheets were successfully synthesized through hydrothermal synthesis, calcination, and reduction treatment, allowing rapid and efficient conversion of p-NP. The designed nanoalloy/bimetal-oxide heterostructure provides a solution for rapid reduction of aminoaromatics from nitroaromatics wastewater even at high concentrations.
Article
Chemistry, Multidisciplinary
Di Xu, Haifeng Fan, Kaidi Liu, Guoqiang Hou, Chuan Qin, Yanfei Xu, Rui Li, Junhu Wang, Mingyue Ding
Summary: The deactivation mechanism of a typical Fe-based/zeolite bifunctional catalyst in CO2 hydrogenation is investigated in this study. The structure-activity relationship of the KFe/ZSM-5 bifunctional catalyst is studied, and it is found that the migration of K and the Fe-zeolite interaction are the main reasons for catalyst deactivation. These factors result in electron deficiency on the Fe surface, inhibiting the activation of CO2 and the formation of active sites. Additionally, the migration of K poisons the acidic sites of the zeolite component, affecting product selectivity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Chemical
Fengxue Zhang, Yongjun Jiang, Sheng Dai, Xinjia Wei, Yuan Ma, Huiying Liao, Yuxi Qin, Qingpo Peng, Xiuge Zhao, Zhenshan Hou
Summary: Zirconium-phosphate-supported platinum catalysts were prepared and thoroughly characterized. The 1% Pt/ZrP catalyst showed excellent catalytic performance for the selective hydrogenation of nitrobenzene. The high dispersion and leaching resistance of the Pt sites resulted in excellent recyclability of the catalysts. In situ DRIFT characterization demonstrated the adsorption of nitro functional group on acid sites of zirconium phosphate and its conversion to para-aminophenol.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Yi Liu, Yi Huang, Shuqing Zhou, Yuting Yang, Lianrui Cheng, Tayirjan Taylor Isimjan, Xiulin Yang
Summary: A high-efficiency bifunctional catalyst of Pt/Mo,P@NC was fabricated and showed excellent catalytic activity and stability in alkaline electrolyte for hydrogen oxidation/evolution reaction. Developing efficient electrocatalysts in alkaline electrolytes is essential for renewable hydrogen technologies.
INORGANIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Yuchen Wang, Yaoyu Liu, Zhiyue Zhao, Zhikeng Zheng, Alina M. Balu, Rafael Luque, Kai Yan
Summary: A noble-metal free topological FeSi catalyst (M-FeSi) was synthesized using a solvent-free microwave strategy for efficient electrocatalytic hydrogenation of nitrobenzene (Ph-NO2) in neutral medium. The M-FeSi catalyst exhibited excellent conversion of Ph-NO2 and yield of Ph-NH2, surpassing previous candidates and FeSi catalyst synthesized via traditional methods.
Article
Engineering, Environmental
Hue-Tong Vu, Florian Maximilian Harth, Michael Goepel, Noemi Linares, Javier Garcia-Martinez, Roger Glaser
Summary: Introduction of mesopores into zeolite Y using surfactant-templating method resulted in a bifunctional catalyst with improved mass transfer properties and higher catalytic activity in the aqueous-phase hydrogenation of levulinic acid to gamma-valerolactone. The presence of additional mesopores in the hierarchical pore system is proven to enhance the catalyst performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Xujian Chen, Chengcheng Kong, Huaquan Huang, De-Li Chen, Fang-Fang Wang, Fumin Zhang, Weidong Zhu
Summary: Selective hydrogenation of nitroaromatics containing other reducible functional groups is crucial yet controversial. Recent theoretical investigations suggest that pre-adsorbed hydrogen significantly alters the adsorption modes of reactants, thereby influencing the reaction mechanism.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Engineering, Chemical
Yuanyuan Xu, Zhihui Li, Liya Gao, Dongsheng Zhang, Xinqiang Zhao, Shufang Wang, Yanji Wang
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2015)
Article
Thermodynamics
Xiaoshu Ding, Hao Liu, Naihua Li, Shufang Wang, Guirong Wang, Xinqiang Zhao, Yanji Wang
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2015)
Article
Engineering, Chemical
Yuanyuan Xu, Qiusheng Yang, Zhihui Li, Liya Gao, Dongsheng Zhang, Shufang Wang, Xinqiang Zhao, Yanji Wang
CHEMICAL ENGINEERING SCIENCE
(2016)
Article
Chemistry, Multidisciplinary
Zhihui Li, Qiusheng Yang, Liya Gao, Yuanyuan Xu, Dongsheng Zhang, Shufang Wang, Xinqiang Zhao, Yanji Wang
Article
Chemistry, Multidisciplinary
Aina Yang, Tong Wang, Zhihui Li, Yuanyuan Xu, Liya Gao, Dongsheng Zhang, Shufang Wang, Xinqiang Zhao, Yanji Wang
RESEARCH ON CHEMICAL INTERMEDIATES
(2018)
Article
Agricultural Engineering
Xiaoshu Ding, Hao Liu, Qiusheng Yang, Naihua Li, Xiangmo Dong, Shufang Wang, Xinqiang Zhao, Yanji Wang
BIOMASS & BIOENERGY
(2014)
Article
Engineering, Environmental
Xiaoshu Ding, Xiangmo Dong, Dongting Kuang, Shufang Wang, Xinqiang Zhao, Yanji Wang
CHEMICAL ENGINEERING JOURNAL
(2014)
Article
Chemistry, Multidisciplinary
Wang ShuFang, Jin YaDan, He BeiBei, Wang YanJi, Zhao XinQiang
SCIENCE CHINA-CHEMISTRY
(2010)
Article
Chemistry, Physical
Xiaoliang Ren, Jingde Li, Shufang Wang, Dongsheng Zhang, Yanji Wang
CATALYSIS COMMUNICATIONS
(2019)
Article
Biotechnology & Applied Microbiology
Xiaoliang Ren, Jingde Li, Shufang Wang, Dongsheng Zhang, Yanji Wang
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2020)
Article
Biotechnology & Applied Microbiology
Xiaoliang Ren, Qiusheng Yang, Shufang Wang, Congcong Guan, Dongsheng Zhang, Xiaoshu Ding, Yanji Wang
Summary: A novel betaine hydrochloride hydroxylamine (BHA) was successfully prepared and showed higher reactivity compared to traditional NH2OH·HCl in the synthesis of cyclohexanone oxime (COX) from cyclohexanone (CYC). BHA also proved to be easily separable and recyclable, providing a green route for COX synthesis.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Xiaoliang Ren, Shufang Wang, Xiaoshu Ding, Dongsheng Zhang, Yanji Wang
Summary: A novel active metal sintered membrane reactor anchored with Pt atoms was developed for liquid-phase hydrogenation processes, showing superior catalytic performance and stability. The reactor enhanced mass transfer at the gas-liquid-solid three-phase interface, leading to an incredibly high reaction efficiency. This work opens up new possibilities for designing high-performance gas-liquid-solid reactors for multiphase catalytic reactions.
Article
Chemistry, Multidisciplinary
Zhihui Li, Xudong Qi, Liya Gao, Yuanyuan Xu, Dongsheng Zhang, Shufang Wang, Xinqiang Zhao, Yanji Wang
Article
Chemistry, Applied
Wang Shufang, Wang Yanji, Gao Yang, Zhao Xinqiang
CHINESE JOURNAL OF CATALYSIS
(2010)
