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Design of Pd{111}-TiO_2 interface for enhanced catalytic efficiency towards formic acid decomposition

Science China Chemistry 2018年第9期61卷 1123-1127页

作者： Yang You Hao Huang Song Xia Zijian Cai Panyiming Liu Chengming Wang Ran Long Li Song Yujie Xiong Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy MaterialsSchool of Chemistry and Materials Science and National Synchrotron Radiation Laboratory University of Science and Technology of China

Supports are commonly implemented in the industrial application of heterogeneous catalysts to improve the stability and recyclability of *** supported catalysts often show the enhanced activity and selectivity in various catalytic ***,the specific contributions of electronic and steric effects to a catalytic system often remain elusive due to the lack of well-defined model *** this work,two types of uniform Pd nanocrystals covered by{111}facets in tetrahedral and octahedral shapes,respectively,are synthesized with identical chemical environment and loaded on Ti O_2supports to form hybrid structures(Pd{111}-Ti O_2)towards the application of formic acid *** observation suggests that the polarization effect at the interface of Pd-Ti O_2enhances its activity in formic acid ***,the Pd tetrahedrons-Ti O_2hybrid structure whose Pd{111}-Ti O_2interface possesses a larger angle shows higher catalytic activity,owing to the reduced steric effect as compared to Pd octahedrons-Ti O_*** study reveals the nature of interface effects in formic acid decomposition,and provides a guidance for the related catalyst design.

关键词： palladium facet formic acid decomposition interface

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Agglomerated Pd Catalysts and Their Applications in Hydrogen Production from formic acid decomposition at Room Temperature

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Chemical Research in Chinese Universities 2016年第2期32卷 272-277页

作者： LIU Jun LAN Lixin WU Chao LI Rong LIU Xuanyan Department of Pharmaceutical and Biological Engineering Hunan Chemical Vocational Technology College Zhuzhou 412004 P. R. China

Agglomerated Pd catalysts with the nano-porous structure were simply prepared by one-step reduction reaction without using any stabilizer. The Pd catalysts show a high catalytic activity for the decomposition of formic acid at room temperature. Among all the Pd catalysts tested, the Pdug catalyst exhibits the highest catalytic activity. Moreover, the breakthrough of the advanced catalysts is that the above agglomerated Pd catalysts can be easily separated from the liquid system to control the catalytic reaction at any time, which may further promote the practical application of formic acid as a H2 storage material.

关键词： Hydrogen energy Heterogeneous catalyst formic acid decomposition Pd catalyst Nano-porous structure

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Surface interaction between Pd and nitrogen derived from hyperbranched polyamide towards highly effective formic acid dehydrogenation

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Journal of Energy Chemistry 2020年第1期29卷 212-216,I0008页

作者： Yancun Yu Xian Wang Changpeng Liu Fateev Vladimir Junjie Ge Wei Xing Laboratory of Advanced Power Sources Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022JilinChina University of Chinese Academy of Sciences Beijing 100049China Jilin Province Key Laboratory of Low Carbon Chemical Power Sources Changchun 130022JilinChina State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022JilinChina University of Science and Technology of China(USTC) Hefei 230026AnhuiChina National Research Center Kurchatov Institute Kurchatov sq.1MoscowRussia Laboratory of Advanced Power Sources Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchaun 130022Jilin.China

Hydrogen production from formic acid decomposition(FAD)is a promising means of hydrogen energy storage and utilization in fuel *** of efficient catalysts for dehydrogenation of formic acid is a challenging *** surface chemical and electronic structure of the active catalysis components is important in formic acid decomposition at ***,the pyrdinic-nitrogen doped catalysts from hyperbranched polyamide were prepared via in situ polymerization reaction process by using activated carbon as a *** of the introduction of the polymer,the particles of the catalysts were stabilized,and the average particle diameter was only 1.64 *** mild conditions,the catalysts activities were evaluated for *** optimized Pd-N30/C catalyst exhibited high performance achieving almost full conversion,with a turnover frequency of 3481 h^-1 at 30℃.

关键词： formic acid decomposition Hydrogen generation Hyperbranched polymer Pd catalyst

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Low Temperature H_(2) Production from formic acid Aqueous Solution Catalyzed on Metal Doped Mo_(2)C

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Journal of Renewable Materials 2020年第8期8卷 939-946页

作者： Shuaishuai Zhu Zhigang Pan Yaqiu Tao Yue Chen College of Materials Science and Engineering Nanjing Tech UniversityNanjingChina State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing21009China

Hydrogen is recognized as a promising energy scours in the close *** hydrogen preparation from formic acid under mild reaction conditions causes extensive ***_(2)C and metal(Fe,Ni,Co,K)doped Mo_(2)C on granular activated carbon(GAC)were prepared and used as heterogeneous catalysts for H2 generation from formic acid on a fixed bed reactor at 100–250°*** formic acid conversions on doped Mo_(2)C-Me/GAC are clearly improved,especially at lower reaction *** doping presents outstanding effect on H2 selectivity and conversion rate compared to Ni and Fe.A 56.3%formic acid conversion was reached on Mo_(2)C-Co/GAC at 100°C,which triples that on Mo_(2)C/GAC at the same *** 150°C,a high formic acid conversion over 90%was reached on Mo_(2)C-Co/*** long lifetime catalysts with no precious metal provide a low cost route to hydrogen production from formic acid.

关键词： Hydrogen production energy storage and conversion Mo_(2)C/GAC metal doping formic acid decomposition carbon materials

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