서브비주얼

HOME > Publication > Paper

Paper

2016 | "Direct activation of CH4to oxygenates and unsaturated hydrocarbonsusi…

페이지 정보

작성자 관리자 /   작성일2018-02-21 /   조회639회

첨부파일

본문

Title : Direct activation of CH4to oxygenates and unsaturated hydrocarbonsusing N2O on Fe-modified zeolites
Authors : Kyung Soo Park, Jeong Hwa Kim, So Hyun Park, Dong Ju Moon, Hyun-Seog Roh,Chan-Hwa Chung, Soong Ho Um, Joon-Hwan Choi, Jong Wook Bae

Journal : Journal of Molecular Catalysis A: Chemical
Vol/No/Page : 426/130-140
DOI : http://dx.doi.org/10.1016/j.molcata.2016.11.008

Abstract :
 Direct activation of CH4to oxygenates and unsaturated light hydrocarbons was investigated using Fe-modified ZSM-5 and Ferrierite (FER) for a partial oxidation of CH4with N2O oxidant. The amount ofactive  -oxygen sites and number of Bronsted acid sites on the Fe-modified zeolites were well correlatedwith CH4conversion rate and product distributions. The amount of  -oxygen sites was largely changedaccording to preparation method such as wet impregnation or ion-exchange of iron precursor and typesof zeolites. A large number of Bronsted acid sites and  -oxygen sites on the Fe-modified FER revealed ahigher oxygenate formation such as methanol and dimethyl ether (DME) with COx, and a larger number ofstrong acid sites on Fe-modified ZSM-5 was also responsible for a higher selectivity to light hydrocarbonsby a successive dehydration of oxygenates formed. The different catalytic performances were verifiedthrough proper measurements of the amount and type of acidic sites as well as the  -oxygen sitesmeasured by N2O pulse chemisorption. The Fe-modified FER prepared by impregnation method possesseda larger amount of  -oxygen sites due to abundant Bronsted acid sites, which was responsible for a higherrate of CH4conversion to oxygenates with the help of N2O decomposition on the  -oxygen sites originatedfrom iron oxide nanoparticles.

Paper 목록

Total 77건 3 페이지
번호 Paper
57 2017 "Electrochemical deposition of NiCo magnetic layer on the aluminum substrate", Science of advanced materials
56 2017 "The symmetric cell configuration in a desalination battery with the electro-deposited dendritic silver electrodes", Science of advanced materials
55 2017 "Non-stoichiometric SnS microspheres with highly enhanced photoreduction efficiency for Cr(VI) ions", RSC Advances
54 2017 "Effect of electrolyte composition on the morphological structures of dendritic copper powders prepared by a spontaneous galvanic displacement reaction", Korean Journal of Chemical Engineering
53 2017 "Highly sensitive and selective electrochemical cortisol sensor using bifunctional protein interlayer-modified graphene electrodes", Sensors and Actuators B: Chemical
52 2017 "A Facile Electrochemical Preparation of Violarite (Ni2FeS4) Nanosheets on Carbon Sheet and its Application towards Non-Enzymatic Glucose Sensing", ChemistrySelect
51 2017 "Ultra-fine SnO2 nanoparticles doubly embedded in amorphous carbon and reduced graphene oxide (rGO) for superior lithium storage", Electrochimica Acta
50 2016 "Neutral pH Gel Electrolytes for V2O5·0.5H2O‑Based Energy Storage Devices", ACS APPLIED MATERIALS & INTERFACES
열람중 2016 "Direct activation of CH4to oxygenates and unsaturated hydrocarbonsusing N2O on Fe-modified zeolites", Journal of Molecular Catalysis A: Chemical
48 2016 "Fischer-Trospch Synthesis on Ordered Mesoporous Cobalt-Based Catalysts with Compact Multichannel Fixed-Bed Reactor Application: A Review", Catalysis Surveys from Asia