Article
Chemistry, Physical
Serdar Akbayrak, Saim oezkar
Summary: A new palladium(0) nanocatalyst has been developed to enhance the catalytic efficiency of precious metal catalysts in hydrogen generation from the hydrolytic dehydrogenation of ammonia borane. The catalyst exhibits high activity and superb stability, and has magnetically isolable properties.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Junchao Han, Wenzhe Niu, Wuning Yuan, Menghui Wei, Bo Zhang, Yanhui Guo
Summary: A series of efficient and low-cost 3D catalysts with designed periodic structures were fabricated, showing significant enhancement in overall catalytic performance of hydrogen production through catalytic dehydrogenation from liquid-phase hydrogen storage materials.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Ting Sun, Rui Lu, Yan Long, Qianggen Li, Jie Wu, Guangyin Fan
Summary: In this study, Ni@CN composite prepared by pre-absorption of nickel nitrate on bamboo fungus is used as a matrix to synthesize Rh/Ni@CN hybrid, which serves as a magnetically recoverable catalyst for hydrogen generation from AB hydrolysis. The catalyst shows outstanding catalytic activity and reusability, providing an eco-friendly and efficient strategy for fabricating high-performance catalysts in catalytic applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Jiankang Zhang, Wenlong Yu, Dan Feng, Hao Xu, Yong Qin
Summary: Synthesizing catalysts with high activity and stability through confinement has been a research hotspot in the field of heterogeneous catalysis. In this study, we report the synthesis of porous TiO2 nanotube confined Pt catalysts through template-assisted atomic layer deposition strategy, which show excellent catalytic performances in the hydrolytic dehydrogenation of NH3BH3.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Xue Zhao, Hanyue Hu, Guo Li, Jiaqi Cai, Yi Wang, Guangyin Fan
Summary: In this paper, a low-temperature regulation (LTR) method is proposed for the synthesis of highly dispersed ultrafine Pd nanoparticles, which exhibit excellent catalytic performance in the dehydrogenation of ammonia borane. The addition of NaOH further enhances the catalytic activity, and the Pd/NPC-LTR catalyst shows good stability and reusability even after multiple cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Serdar Akbayrak, Gulhan Cakmak, Tayfur Ozturk, Saim Ozkar
Summary: Magnetic isolable ruthenium(0), rhodium(0), and palladium(0) nanoparticles supported on carbon-coated iron particles were synthesized and used as catalysts for hydrolysis of ammonia borane. The catalysts demonstrated high reactivity and turnover frequency at room temperature, showing great potential for industrial applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Lin-Chang Liu, Hong-Lin Zhu, Ya-Jun Guo, Miao Shui, Yue-Qing Zheng
Summary: By adjusting the molar ratio of Rh to Cu in the RhCu/CoOx catalysts, the Rh1Cu2/CoOx catalyst showed the best catalytic activity for hydrolytic dehydrogenation of AB, with a turnover frequency (TOF) of 670.95 mol(H2) molcat(-1) min(-1) and an apparent activation energy (Ea) of 28.86 kJ mol(-1).
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Multidisciplinary Sciences
Zhe Gao, Guofu Wang, Tingyu Lei, Zhengxing Lv, Mi Xiong, Liancheng Wang, Shuangfeng Xing, Jingyuan Ma, Zheng Jiang, Yong Qin
Summary: In this study, the promotion functions of the reverse spillover effect in the ammonia borane hydrolysis reaction were proven by constructing a NiO/Al2O3/Pt bicomponent catalyst. In situ XANES results revealed that H species generated at NiO sites spill across the support to the Pt sites reversely, leading to enhanced hydrogen generation rates. The study suggests that understanding the reverse effects can contribute to clarifying catalytic mechanisms and designing efficient catalysts for hydrogen generation reactions.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Rahel Yildirim, Mehmet Gulcan
Summary: A Ru@rGO-SO3H catalyst was developed using sulfonated reduced graphene oxide support, which showed good catalytic activity and stability in hydrogen production. By analyzing the impact factors and efficiency of the catalytic reaction, the main performance parameters of the catalyst and reusability results were obtained.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Junji Chen, Mengqin Yao, Qizhuang Zou, Peng Chen, Fei Liu, Tianxiang Zhao
Summary: An effective strategy synthesis of Rh/meso-Al2O3 catalysts for the hydrolytic dehydrogenation of ammonia borane has been demonstrated. The catalysts exhibit high turnover frequency and can be easily recycled, making them promising for practical applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Zier Jin, Hong Xia, Wenxin Yang, Mingen Liu, Xiaoyu Liu, Jiao Xiang, Abdul Qayum, Liangsheng Hu, Lianfeng Duan, Wenhua Gao, Zhi Liu, Fushen Lu
Summary: A Ru-Ni bimetallic nanoparticle catalyst was developed on APTS-rGO support with enhanced catalytic activity for hydrolytic H2 generation from AB. The catalyst showed potential applications in various catalytic fields due to its advantages of facile preparation method, good hydrophilicity, and outstanding catalytic performance.
Article
Chemistry, Multidisciplinary
Ning Wang, Qiming Sun, Tianjun Zhang, Alvaro Mayoral, Lin Li, Xue Zhou, Jun Xu, Peng Zhang, Jihong Yu
Summary: Supported metal catalysts prepared using impregnation method often suffer from poor dispersion and thermal stability. In this study, it was demonstrated that self-pillared MFI zeolite nanosheets are ideal supports for immobilizing ultrasmall metal clusters, exhibiting excellent catalytic performance in various reactions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Zhibo Liu, Fei Huang, Mi Peng, Yunlei Chen, Xiangbin Cai, Linlin Wang, Zenan Hu, Xiaodong Wen, Ning Wang, Dequan Xiao, Hong Jiang, Hongbin Sun, Hongyang Liu, Ding Ma
Summary: This study focused on the selective hydrogenation of nitriles to prepare secondary and primary amines using two types of atomically dispersed Pd catalysts supported on nanodiamond-graphene hybrid support. The structure of the catalyst, whether single Pd atoms or fully exposed Pd clusters, played a crucial role in determining the product selectivity. The atomically dispersed Pd catalysts showed different selectivity towards secondary amines and primary amines due to their distinct hydrogenation pathways.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Applied
Melike Sevim, Fatma Kaplan
Summary: In this study, the catalytic efficiency of NiPt alloy nanoparticles in the hydrolytic dehydrogenation of ammonia borane was investigated by synthesizing monodisperse NiPt alloy NPs and supporting them on different materials. Among the tested nanocatalysts, KB-supported NiPt NPs exhibited high activity and durability, with Ni70Pt30 NPs showing the best catalytic performance. The detailed kinetics of the KB-NiPt nanocatalyst were reported, including the activation energy for the catalytic hydrolysis of AB.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Energy & Fuels
Youngwon Ju, Taehoon Cho, Kichul Lee, Jiwoong Kim, Chang Won Yoon, Joohoon Kim
Summary: We report the size-dependent activity of Pt nanoparticles in the range of 1 to 4 nm for the hydrolytic dehydrogenation of ammonia borane. Pt nanoparticles with different sizes were encapsulated inside dendrimers to study their intrinsic size effect on catalytic activity. The results showed that Pt nanoparticles exhibited significant catalytic activity, and the size-dependent activity was attributed to the geometric nature of the nanoparticles.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Chemical
Xu Yang, Jieshi Xiao, Jian Huang, Kaixiang Peng
Summary: This study introduces an online convolutional adversarial autoencoder (AAE) model to learn representative industrial process information. By extracting features that reflect diverse information and follow a Gaussian distribution, the model improves the accuracy of fault detection and removes redundant information through a feature selection strategy.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2024)
Article
Engineering, Chemical
Shao-Yang Wu, Meng-Tsun Lai, Chung-Hui Hsu, Kevin C. W. Wu, Yesong Gu
Summary: This study investigated the effectiveness of using Fe-based MOF or MIL-100(Fe) in conjunction with a PEDOT-modified Pt electrode for detecting the synthetic azo dye tartrazine. By modifying the electrode with two different methods, favorable lower reductive potentials, competitive sensitivities, and good repeatability and stability were achieved in all MIL-100(Fe)/PEDOT/Pt electrodes.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2024)