期刊
ADVANCED MATERIALS
卷 33, 期 36, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202103248
关键词
phosphidation; photothermal catalysis; solar-driven; value-added hydrocarbons
类别
资金
- National Key Projects for Fundamental Research and Development of China [2018YFB1502002]
- National Natural Science Foundation of China [51825205, 51772305, 21902168]
- Beijing Natural Science Foundation [2191002]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB17000000]
- Royal Society Newton Advanced Fellowship [NA170422]
- International Partnership Program of Chinese Academy of Sciences [GJHZ1819, GJHZ201974]
- K. C. Wong Education Foundation
- Youth Innovation Promotion Association of the CAS
- MacDiarmid Institute for Advanced Materials and Nanotechnology
- Energy Education Trust of New Zealand
This research demonstrates a partial phosphidation strategy to prepare titania supported Ni2P/Ni photothermal catalysts, which can enhance the selectivity of multi-carbon products (C2+) in Fischer-Tropsch synthesis and efficiently harness solar energy for high value product production.
Solar-driven Fischer-Tropsch synthesis (FTS) holds great potential for the sustainable production of fuels from syngas and solar energy. However, the selectivity toward multi-carbon products (C2+) is often hampered by the difficulty in the regulation of transition metals acting as both light absorption units and active sites. Herein, a partial phosphidation strategy to prepare titania supported Ni2P/Ni catalysts for photothermal FTS is demonstrated. Under Xenon lamp or concentrated sunlight irradiation, the optimized catalyst shows a C2+ selectivity of 70% at a CO conversion of >20%. Conversely, nickel metal in the absence of Ni2P delivers negligible C2+ products (approximate to 1%) with methane being the major product (>90%). Structural characterization and density functional theory calculation reveal that the partial phosphidation allows exposed metallic Ni to be active for CO adsorption and activation, while the existence of Ni2P/Ni interface is responsible to inhibit CO methanation and promote C-C coupling of adsorbed *CH intermediates. This work introduces a novel phosphidation strategy for nickel-based photothermal catalysts in efficiently harnessing solar energy, and regulating the reaction pathways for CO hydrogenation to deliver high value products.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据