稻壳灰衍生SiO2无模板合成H-ZSM-5 Ni催化剂载体:清洁制氢非氧化CH4裂解研究

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL Catalysis Surveys from Asia Pub Date : 2022-09-13 DOI:10.1007/s10563-022-09365-9

Manasa Kandula, Naresh Gutta, Hari Padmasri Aytam, Vijayanand Perupogu, Kalpana Manda, Venugopal Akula

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引用次数: 0

摘要

以稻壳为原料合成了H-ZSM-5(RH)，并探讨了其作为Ni在甲烷(CCM)催化裂化中的载体作用。利用XRD、SEM、TEM、H2-TPR、DT/TGA和CO脉冲化学吸附技术对新催化剂和旧催化剂进行了详细的研究，结果表明，高CCM活性是由于Ni分散增强和Cu-Ni相互作用增强所致。在Ni/H-ZSM-5(RH)和双金属(Ni-M/H-ZSM-5(RH) M = Zn, Co, Fe, Cu)催化剂中，Cu-Ni/H-ZSM-5(RH)催化剂的产氢率为~ 275 Nm3/molNi，这与拉曼光谱分析证实的高石墨化程度有关。

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Rice Husk Ash Derived SiO2 for Template Free Synthesis of H-ZSM-5 Support for Ni Catalyst: Investigation on Non-Oxidative CH4 Cracking for Clean H2 Production

H-ZSM-5(RH) was synthesized using rice husk without an organic reagent and explored it as a support for Ni in the catalytic cracking of methane (CCM). Detailed investigations of the fresh and used catalysts analysed by using XRD, SEM, TEM, H₂-TPR, DT/TGA and CO pulse chemisorption techniques revealed that the high CCM activity was due to enhanced Ni dispersion and increased Cu-Ni interactions. Among the Ni/H-ZSM-5(RH) and bimetallic (Ni-M/H-ZSM-5(RH) M = Zn, Co, Fe, Cu) catalysts, the Cu-Ni/H-ZSM-5(RH) demonstrated a hydrogen yield of ~ 275 Nm³/mol_Ni which was explained by a high degree of graphitization confirmed by Raman spectroscopic analysis.

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来源期刊

Catalysis Surveys from Asia 化学-物理化学

CiteScore

4.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Early dissemination of important findings from Asia which may lead to new concepts in catalyst design is the main aim of this journal. Rapid, invited, short reviews and perspectives from academia and industry will constitute the major part of Catalysis Surveys from Asia . Surveys of recent progress and activities in catalytic science and technology and related areas in Asia will be covered regularly as well. We would appreciate critical comments from colleagues throughout the world about articles in Catalysis Surveys from Asia . If requested and thought appropriate, the comments will be included in the journal. We will be very happy if this journal stimulates global communication between scientists and engineers in the world of catalysis.