Methanol Steam Reforming for Hydrogen Production over CuZnZrOx: Promotion Effect of Cu
Source abstract
Abstract
Mixed metal oxides catalyze steam reforming of methanol (SRM) usually at reaction temperatures of >400 °C, leading to high energy consumption. Herein, we report that a small amount of Cu doping can greatly promote the activity of ZnZrO x in the SRM at low temperatures. The 2%CuZnZrO x can efficiently catalyze the SRM at temperatures as low as 300 °C to give 95.3% methanol conversion, but ZnZrO x only shows low methanol conversion (23.6%) under similar reaction conditions. Structural characterizations show that CuZnZrO x catalysts are ternary solid solutions rich in Ov, which is favorable for water activation. CuZnZrO x with low-valence Cu δ+ shows faster kinetics for the generation and decomposition of HCOOH intermediate than ZnZrO x . The co-presence of Cu δ+ and Ov contributes to the excellent performance of CuZnZrO x . These findings provide an efficient strategy for promoting the catalytic performance of metal oxides toward SRM.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Catalytic Processes in Materials Science · Catalysts for Methane Reforming · Electrocatalysts for Energy Conversion
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China
Department of Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, 2205 Songhu Road, Shanghai 200438, P. R. China
Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, P. R. China
Funding
National Natural Science Foundation of China · Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang
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