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| 1 | Catalytic carbon dioxide hydrogenation to methane: A review of recent studies显示文摘Recently,various efforts have been put forward on the development of technologies for the synthesis of methane from CO_2 and H_2,since it can offer a solution for renewable H_2 storage and transportation.In parallel,this reaction is considered to be a critical step in reclaiming oxygen within a closed cycle.Over the years,extensive fundamental research works on CO_2 methanation have been investigated and reported in the literatures.In this updated review,we present a comprehensive overview of recent publications during the last 3 years.Various aspects on this reaction system are described in detail,such as thermodynamic considerations,catalyst innovations,the influence of reaction conditions,overall catalytic performance,and reaction mechanism.Finally,the future development of CO_2 methanation is discussed. | Xiong Su Jinghua Xu Binglian Liang Hongmin Duan Baolin Hou Yanqiang Huang | 2016 | Journal of Energy Chemistry2016，25，4： | 7 |
| 2 | CO_2 methanation over TiO_2–Al_2O_3 binary oxides supported Ru catalysts显示文摘TiO_2 modified Al_2O_3 binary oxide was prepared by a wet-impregnation method and used as the support for ruthenium catalyst. The catalytic performance of Ru/TiO_2–Al_2O_3catalyst in CO_2 methanation reaction was investigated. Compared with Ru/Al_2O_3 catalyst, the Ru/TiO_2–Al_2O_3catalytic system exhibited a much higher activity in CO_2 methanation reaction. The reaction rate over Ru/TiO_2–Al_2O_3 was 0.59 mol CO_2·(g Ru)1·h-1, 3.1 times higher than that on Ru/Al_2O_3[0.19 mol CO_2·(gRu)-1·h-1]. The effect of TiO_2 content and TiO_2–Al_2O_3calcination temperature on catalytic performance was addressed. The corresponding structures of each catalyst were characterized by means of H_2-TPR, XRD, and TEM. Results indicated that the averaged particle size of the Ru on TiO_2–Al_2O_3support is 2.8 nm, smaller than that on Al_2O_3 support of 4.3 nm. Therefore, we conclude that the improved activity over Ru/TiO_2–Al_2O_3catalyst is originated from the smaller particle size of ruthenium resulting from a strong interaction between Ru and the rutile-TiO_2 support, which hindered the aggregation of Ru nanoparticles. | Jinghua Xu Qingquan Lin Xiong Su Hongmin Duan Haoran Geng Yanqiang Huang | 2016 | Chinese Journal of Chemical Engineering2016，24，1： | 4 |
| 3 | The influence of intimacy on the ’iterative reactions’ during OX-ZEO process for aromatic production显示文摘The oxide-zeolite process provides a promising way for one-step production of aromatics from syngas,whereas the reasons for the dramatic effect of intimacy between oxide and zeolite in the composite catalyst on the product selectivity are still unclear. In order to explore the optimal intimacy and the essential influence factors, ZnCrOxcombined with ZSM-5 are employed to prepare the composite catalysts with different distances between the two components by changing the mixing methods. An aromatic selectivity of 74%(with CO conversion to be 16%) is achieved by the composite catalyst when the intimacy is in the range of nanometer. A so-called ‘iterative reactions’ mechanism of intermediates over oxides is then proposed and studied: the intermediate chemical can undergo a hydrogenation reaction on oxide.So the shorter the intermediates stay on oxide, the more of chance for C-C coupling takes place on zeolite to form aromatics. Moreover, the aero-environments of reaction is found to impact on the extent of iterative reaction as well. Therefore, when the intimacy between the two components changes, the extent of iterative reactions vary, resulting in alteration of product distribution. This work provides new insight in understanding the mechanisms during the complex process of OX-ZEO composite catalysis and sheds light to the design of a high-yield catalyst for synthetization of aromatics from syngas. | Xiaoli Yang Ting Sun Junguo Ma Xiong Su Ruifeng Wang Yaru Zhang Hongmin Duan Yanqiang Huang Tao Zhang | 2019 | Journal of Energy Chemistry2019，28，8： | 4 |
| 4 | Nitrogen-doped hierarchically porous carbon spheres for low concentration CO_(2) capture显示文摘Synthesis of spherical carbon beads with effective CO_2 capture capability is highly desirable for large scale application of CO2 sorption, but remains challenging. Herein, a facile and efficient strategy to prepare nitrogen-doped hierarchically porous carbon spheres was developed via co-pyrolyzation of poly(vinylidene chloride) and melamine in alginate gel beads. In this approach, melamine not only serves as the nitrogen precursor, but also acts as a template for the macropores structures. The nitrogen contents in the hierarchically porous carbon spheres reach a high level, ranging from 11.8 wt% to 14.7 wt%, as the melamine amount increases. Owing to the enriched nitrogen functionalities and the special hierarchical porous structure, the carbon spheres exhibit an outstanding CO_2 capture performance, with the dynamic capacity of as much as about 7 wt% and a separation factor about 49 at 25 °C in a gas mixture of CO_2/N_2(0.5:99.5, v/v). | Yang Li Jing Wang Sisi Fan Fanan Wang Zheng Shen Hongmin Duan Jinming Xu Yanqiang Huang | 2021 | Journal of Energy Chemistry2021，30，2： | 3 |
| 5 | Identification of relevant active sites and a mechanism study for reverse water gas shift reaction over Pt/CeO_2 catalysts显示文摘Reverse water gas shift(RWGS) reaction can serve as a pivotal stage in the CO_2 conversion processes,which is vital for the utilization of CO_2.In this study,RWGS reaction was performed over Pt/CeO_2 catalysts at the temperature range of 200-500℃ under ambient pressure.Compared with pure CeO_2,Pt/CeO_2catalysts exhibited superior RWGS activity at lower reaction temperature.Meanwhile,the calculated TOF and E_a values are approximately the same over these Pt/CeO_2 catalysts pretreated under various calcination conditions,indicating that the RWGS reaction is not affected by the morphologies of anchored Pt nanoparticles or the primary crystallinity of CeO_2.TPR and XPS results indicated that the incorporation of Pt promoted the reducibility of CeO_2 support and remarkably increased the content of Ce^(3+) sites on the catalyst surface.Furthermore,the CO TPSR-MS signal under the condition of pure CO_2 flow over Pt/CeO_2catalyst is far lower than that under the condition of adsorbed CO_2 with H_2-assisted flow,revealing that CO_2 molecules adsorbed on Ce^(3+) active sites have difficult in generating CO directly.Meanwhile,the adsorbed CO_2 with the assistance of H_2 can form formate species easily over Ce^(3+) active sites and then decompose into Ce^(3+)-CO species for CO production,which was identified by in-situ FTIR. | Xiaodong Chen Xiong Su Binglian Liang Xiaoli Yang Xinyi Ren Hongmin Duan Yanqiang Huang Tao Zhang | 2016 | Journal of Energy Chemistry2016，25，6： | 3 |
| 6 | Reaction Performance and Characterization of Co/Al2O3 Fischer-Tropsch Catalysts Promoted with Pt,Pd and Ru显示文摘 | Xu Dongyan Li Wenzhao Duan Hongmin | 2005 | Catal Lett2005，102，34： | 1 |
| 7 | The Difference of the Pulmonary-Artery Pressure of the Migrantsfrom Difference Elevation at the 4636~4907 m Altitude显示文摘Study Objective: To compare and analyze the changes of the pulmonary-artery pressure of the migrants coming from different elevation in the hypoxic environment of 4636~4907 m extreme altitude. To explore the susceptibility to hypoxic pulmonary-artery hypertension (PH) in the subjects from different altitude and profession.Methods: By using Color Doppler Ultrasonography (CDU), measuring the pulmonary-artery pressure of 207 healthy men, who had continuously being lived and worked at the extreme altitude for more than six months, and then were divided into three groups according to their profession and the altitude of original living place. Results: There was a significant difference in the outcomes of pulmonary-artery pressure from the 3 groups. Conclusions: Altitude of original living place, labor intensity are some of factors that impact the pulmonary-artery pressure of the people who exposure to a hypoxic environment. The pulmonary-artery pressure of person without strenuously physical work experience was more sensitive to hypoxic surroundings than that of labor workers. It was not always the fact at an extreme altitude that the moderate altitude mountaineers were superior to other migrants from a lower altitude or plain. The higher PH was found in the groups of the moderate altitude mountaineers and labor workers. It is unlikely certain that one with PH would surfer from HAPE. | Duan Jinqing Liu Hongbin Zhang Xinian Lu Hongmin Gou Ai Liu Zheng Wang Tao Ge Rili | 2006 | 工程科学(英文版)2006，4，2： | 0 |
| 8 | 单原子铱催化剂实现二氧化碳“准均相”催化加氢制甲酸(盐)显示文摘文章简介'单原子催化剂'因其具有活性中心均一、且催化性质独特的特点,迅速成为多相催化领域的研究前沿,并成为关联多相与均相催化的桥梁。为此,可以借鉴均相催化模型,从分子水平构建载体负载单原子活性中心,从而不仅可获得单原子活性中心的稳定性,并实现单原子催化剂的'准均相'应用。 | 邵先钊 杨小峰 Jinming Xu Song Liu Shu Miao Xiaoyan Liu Xiong Su Hongmin Duan 黄延强 Tao Zhang | 2020 | 科学新闻2020，，2： | 0 |
| 9 | The principle,application,and prospect of using the uranium comminution age to indicate the catchment erosion depth显示文摘Catchment erosion not only shapes various landforms of the earth’s surface but also affects the rates of chemical weathering and CO_(2) absorption by controlling the exposure of rock fragments,and thus acts as a regulator of the global climate.Therefore,studying the occurrence and controlling factors of catchment erosion can improve our understanding of topographic evolution and long-term climate change.This paper introduces the“comminution age”method based on (^(234)U/^(238)U) of sediment detrital components and its applications to indicate the catchment erosion depth,which is widely applied to different depositional environments.In tectonically stable regions,where there is shallow erosion,the sediment output from the catchment is usually accompanied by a low (^(234)U/^(238)U).On the other hand,where there is deep erosion,the (^(234)U/^(238)U) of the downstream sediments is usually high.In tectonically active regions,deep erosion is common,and the sediment erosion process is subject to rapid material transport,such as landslide-induced sediment displacement.Since the sediment exposure history is short,the (^(234)U/^(238)U) of the detrital components is close to 1,thus reaching“secular equilibrium”.The comminution age method is promising in terms of tracing catchment erosion depths at the orbital scale.Furthermore,this method is also sensitive to the erosion changes caused by rapid climate changes and human activities. | Hongmin XU Chao LI Zhifei DUAN Yulong GUO Shouye YANG | 2023 | Science China Earth Sciences2023，66，7： | 0 |
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