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| 1 | 光照对Pt/Al2O3光热CO2加氢反应的增强作用(英文)显示文摘在传统热催化材料的研究领域中,光照技术已经得到了广泛的应用,从而使传统热催化剂的催化反应活性和选择性得到优化.然而,在光热协同催化反应过程中,光照因素对催化反应过程的影响尚未得到很好地研究和理解.本文通过浸渍法制得Pt/Al2O3催化剂,并应用于光热协同催化CO2加氢反应.结果证明,在光热协同CO2加氢催化反应中, Pt/Al2O3催化剂表现出光热协同效应.本文结合原位漫反射红外光谱(operandoDRIFTS)和密度泛函理论计算(DFT)对光照因素对该催化反应过程的作用机制进行了进一步深入研究.结果表明, CO气体分子从Pt纳米颗粒上的脱附过程为CO2加氢反应的重要步骤;CO气体分子在Pt纳米颗粒上脱附的位置包含台阶位置(Ptstep)和平台位置(Ptterrace).结果表明,反应过程中CO气体分子从Pt表面的脱附有利于催化剂暴露出Pt反应活性位点.值得注意的是,在光热协同催化CO2加氢反应过程中,光照和温度因素对CO气体分子的脱附过程具有不同影响.吸附能的计算结果证明, CO气体分子吸附在Ptstep和Ptterrace上的吸附能分别为-1.24和-1.43eV.由此可见, CO气体分子与Pt纳米颗粒上的Ptstep吸附位点之间相互作用更强.在无光照作用的条件下对催化剂进行加热, CO气体分子更容易从Ptterrace吸附位点发生脱附;但是在对应的温度下加入光照作用后,吸附在Ptstep位点上的CO气体分子会先转移到Ptterrace吸附位点上,随后脱附,从而促进CO2加氢反应的进行. | 赵梓俨 Dmitry EDoronkin 叶英浩 Jan-Dierk Grunwaldt 黄泽皑 周莹 | 2020 | Chinese Journal of Catalysis2020，41，2： | 4 |
| 2 | Reduction and carburization of iron oxides for Fischer–Tropsch synthesis显示文摘The activation of iron oxide Fischer–Tropsch Synthesis(FTS) catalysts was investigated during pretreatment: reduction in hydrogen followed by carburization in either CO or syngas mixture, or simultaneously reduction and carburization in syngas. A combination of different complementary in situ techniques was used to gain insight into the behavior of Fe-based FTS catalysts during activation. In situ XRD was used to identify the crystalline structures present during both reduction in hydrogen and carburization. An increase in reduction rate was established when increasing the temperature. A complete reduction was demonstrated in the ETEM and a grain size dependency was proven, i.e. bigger grains need higher temperature in order to reduce. XPS and XAS both indicate the formation of a small amount of carbonaceous species at the surface of the bulk metallic iron during carburization. | Monia Runge Nielsen Asger Barkholt Moss Anton Simon Bjrnlund Xi Liu Axel Knop-Gericke Alexander YuKlyushin Jan-Dierk Grunwaldt Thomas LSheppard Dmitry EDoronkin Anna Zimina Thomas Eric Lyck Smitshuysen Christian Danvad Damsgaard Jakob Birkedal Wagner Thomas Willum Hansen | 2020 | Journal of Energy Chemistry2020，29，12： | 2 |
| 3 | Gold/titania interfaces and theirrole in carbon monoxide oxidation显示文摘 | Grunwaldt J D Balker A | 1999 | J Phys Chem B1999，103，6： | 1 |
| 4 | Preparation of supported gold catalysts for low-temperature CO oxidation via‘size-controlled'gold colloids显示文摘 | Grunwaldt J D Kiener C Wogerbauer C | 1999 | Journal of Catalysis1999，181，2： | 1 |
| 5 | A review of catalytic upgrading of bio-oil to engine fuels显示文摘 | MORTENSEN P M GRUNWALDT J D JENSEN P A KNUDSEN K G JENSEN A D | 2011 | Appl Catal A: Gen2011，407，1： | 1 |
| 6 | Preparation of supported gold catalysts for low-temperature CO oxidation via 'size-controlled' gold colloids 显示文摘 | Grunwaldt J D Kiener C WSgerbauer C Baiker Alfons | 1999 | Journal of Catalysis1999，181，： | 1 |
| 7 | Pierre Robin Sequence : a perioperative review 显示文摘 | Cladis F Kumar A Grunwaldt L | 2014 | Anesth Analg2014，119，2： | 1 |
| 8 | Scalp reconstruction:regeneration with acellular dermal matrix显示文摘 | Kinsella CR Jr Grunwaldt LJ Cooper GM | 2010 | J Craniofac Surg2010，21，2： | 1 |
| 9 | A simple route to highly active ruthenium catalysts for formylation reactions with hydrogen and carbon dioxide显示文摘 | Rohr M Grunwaldt J D Baiker A | 2005 | J Mol Catal A2005，226，： | 1 |
| 10 | A review of cata- lytic upgrading of bio-oil to engine fuels 显示文摘 | Mortensen P M Grunwaldt J D Jensen P A | 2011 | Applied Catalysis A : General2011，407，： | 1 |
| 11 | Simple preparation routes towards novel Zn-based catalysts for the solventless synthesis of propylene carbonate using dense carbon dioxide显示文摘 | Ramin M van Vegten N Grunwaldt J D | | 0，，： | 1 |
| 12 | Preparation of supported gold catalysts for low temperature CO oxidation via 'size-controlled' gold colloids 显示文摘 | GRUNWALDT J D KIENER C BAIKER A | 1999 | J Catal1999，181，2： | 1 |
| 13 | Sol-gel bismuth-molybdenum-titanium mixed oxides(I): preparation and structural properties显示文摘 | WILDBERGER M D GRUNWALDT J D MACIEJEWSKI M | 1998 | Appl Catal:A1998，175，12： | 1 |
| 14 | 显示文摘 | Grunwaldt J - D Koppel R A | 1999 | J Mol Catal A1999，139，： | 1 |
| 15 | Formation and stability of barium aluminate and cerate in NOx storage-reduction catalysts 显示文摘 | Maria Casapu Jan-Dierk Grunwaldt Marek Maciejewski | 2005 | Applied Catalysis B : Environmental2005，63，2006： | 1 |
| 16 | Simple preparation routes towards novel Zn-based eatalysts for the solventless synthesis of propylene carbonate using dense carbon dioxide显示文摘 | Ramin m Vegten N V Grunwaldt J D | 2006 | J Mol Catal A2006，258，16： | 1 |
| 17 | Internal steam reforming in solid oxide fuel cells: Status and opportunities of kinetic studies and their impact on modelling显示文摘 | D. Mogensen J.-D. Grunwaldt P.V. Hendriksen K. Dam-Johansen J.U. Nielsen | 2010 | Journal of Power Sources2010，，1： | 1 |
| 18 | 显示文摘 | Atamny F Gobel U Baiker A | 1996 | Appl Surf Sci1996，99，： | 1 |
| 19 | Preparation and characterization of thin TiO2-Films on gold/mica显示文摘 | Grunwaldt J -D Gbel U Baiker A | 1997 | Fresenius J Anal Chem1997，，358： | 1 |
| 20 | Sol-gel bismuth-molybdenum-titanium mixed oxides显示文摘 | Wildberger M D Maciejewski M Grunwaldt J D | 1999 | Applied Cataysis A1999，1179，： | 1 |
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