In:
EES Catalysis, Royal Society of Chemistry (RSC)
Abstract:
Ammonia (NH3), as an important foundational chemical and green hydrogen energy carrier, plays an indispensable role in the development of human society. However, it is evident that the traditional process for NH3 synthesis is no longer in line with the times due to its drawbacks, such as high energy consumption and high carbon emission. In recent years, photocatalytic nitrogen reduction reaction (PNRR), which reduces N2 to NH3 under mild conditions using inexhaustible solar energy, has been considered as a promising alternative. Nevertheless, the catalytic efficiency of PNRR is low and far from practical applications owing to the weak N2 adsorption, hard dissociation of inert N≡N, and competing reactions of hydrogen precipitation. Metal-support interactions (MSI) provides an efficient way to adjust the performance of both the active metal and support in photocatalytic process through geometric, electronic and bifunctional effects. The design of heterogeneous photocatalysts with tunable MSI has been proved a feasible way to enhance the catalytic performance of PNRR. In this review, we summarize the recent developments on MSI photocatalysts involved in nitrogen fixation. Firstly, the mechanism of MSI and its characterization as well as the synthesis strategies for photocatalyst with MSI construction are briefly outlined. Subsequently, the electronic & bifunctional effect of MSI photocatalyst and the corresponding PNRR mechanism are focused, from the aspects of supports such as metal oxides, bismuth oxyhalides, metal sulfides, metal-organic frameworks (MOFs) and carbon nitrides. Finally, the future development in this area such as creating the state-of-the-art materials with MSI and synthesis strategies, developing advanced technique to investigate reaction mechanisms for N2 fixation are prospected. It is expected that this review can provide some guidance for understanding and rationally designing MSI photocatalysts, especially for boosting PNRR.
Type of Medium:
Online Resource
ISSN:
2753-801X
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2023
detail.hit.zdb_id:
3146060-4
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