An Efficient Metal–Organic Framework‐Derived Nickel Catalyst for the Light Driven Methanation of CO₂

Abstract

We report the synthesis of a highly active and stable metal‐organic framework derived Ni‐based catalyst for the photothermal reduction of CO2 to CH4. Through the controlled pyrolysis of MOF‐74 (Ni), the nature of the carbonaceous species and therefore photothermal performance can be tuned. CH4 production rates of 488 mmol g−1 h−1 under UV‐visible‐IR irradiation are achieved when the catalyst is prepared under optimized conditions. No particle aggregation or significant loss of activity were observed after ten consecutive reaction cycles or more than 12 hours under continuous flow configuration. Finally, as a proof‐of‐concept, we performed an outdoor experiment under ambient solar irradiation, demonstrating the potential of our catalyst to reduce CO2 to CH4 using only solar energy.

NiS Cocatalyst–Modified ZnIn2S4 as Ohmic‐Junction Photocatalyst for Efficient Conversion of CO2

“…[6][7][8][9] Whereas, due to the impact of the low utilization of visible light, slow carrier dynamics, and high CO 2 activation energy, the activity of photocatalyst is far from reaching the level of practical applications. [10][11][12][13][14] Thus, exploring photocatalysts with high carrier separation efficiency and lightutilization efficiency is the focus of many research workers.Heretofore, countless semiconductors have been used to photocatalytic technology, such as CuIn 5 S 8 , WO 3 , CdS, ZnIn 2 S 4 , g-C 3 N 4 , and so on. [14][15][16][17][18][19][20][21][22] Among these traditional and popular semiconductors, ZnIn 2 S 4 as a low-cost ternary metal sulfide has been applied in photocatalytic reduction of CO 2 field owing to its suitable bandgap, good light resistance, and excellent photoelectric characteristics.…”

“…[10][11][12][13][14] Thus, exploring photocatalysts with high carrier separation efficiency and lightutilization efficiency is the focus of many research workers.Heretofore, countless semiconductors have been used to photocatalytic technology, such as CuIn 5 S 8 , WO 3 , CdS, ZnIn 2 S 4 , g-C 3 N 4 , and so on. [14][15][16][17][18][19][20][21][22] Among these traditional and popular semiconductors, ZnIn 2 S 4 as a low-cost ternary metal sulfide has been applied in photocatalytic reduction of CO 2 field owing to its suitable bandgap, good light resistance, and excellent photoelectric characteristics. [23,24] In addition, compared with independent 1D and 2D, the 3D ZnIn 2 S 4 assembled by ultrathin structures provides superior specific surface area and enriches CO 2 -adsorption sites, thereby improving the ability to anchor CO 2 molecules.…”

“…[6][7][8][9] Whereas, due to the impact of the low utilization of visible light, slow carrier dynamics, and high CO 2 activation energy, the activity of photocatalyst is far from reaching the level of practical applications. [10][11][12][13][14] Thus, exploring photocatalysts with high carrier separation efficiency and lightutilization efficiency is the focus of many research workers.…”

A shared future: chemistry's engagement is essential for resilience of people and planet

“…Chemistry research has sought 'green' options that do not generate CO 2 , for both ammonia and hydrogen production [29][30][31], as well as methods by which CO 2 generated can be captured, either for long-term lock-in (e.g. as stable carbonates) or for use in other chemical and physical applications [32,33].…”

Metallocavitins as Promising Industrial Catalysts: Recent Advances

“…Anionic MOFs as a host and a cationic photosensitizer as a guest were self-assembled into a photocatalytic system, Ru@ Cu-HHTP, which showed high activity for photocatalytic CO 2 R under sunlight with CO selectivity of 91.3% (Figure 3B, Huang et al, 2021). An Ni-MOF-derived catalyst for the light-driven methanation of CO 2 produces methane with a rate of 488 mmol g _1 h _1 under UV-visible-IR irradiation and displayed excellent recyclability without loss of catalytic activity (Khan et al, 2021). Because of the highly stacked layers, some COFs have semiconductive properties and exhibit good catalytic performance in photo-CO 2 R (Nguyen and Alzamly, 2021).…”