Photothermal Catalysis: Efficient Visible‐Light Driven Photothermal Conversion of CO₂ to Methane by Nickel Nanoparticles Supported on Barium Titanate (Adv. Funct. Mater. 8/2021)

Abstract

In article number 2008244, Jorge Gascon and co‐workers report complete visible‐light photo‐thermal CO2 conversion to methane using a new composite catalyst based on Ni nanoparticles supported on barium titanate. Under optimal conditions, the photocatalyst displays an outstanding CH4 production rate of 103.7 mmol g−1 h−1 derived from its excellent photo‐thermal performance and light harvesting properties.

Making light work: designing plasmonic structures for the selective photothermal methanation of carbon dioxide

“…9 NiO reduction to metallic Ni must occur to enable the H 2 dissociation required for CH 4 production, as NiO is not active towards CO 2 methanation. 11,36 The temperature within the batch reactor (as governed by photothermal effects induced by the catalyst) and Ni reducibility work cooperatively to initiate Ni reduction and facilitate subsequent reaction. Herein, TiN thermalization initiates the NiO reduction process.…”

“…[7][8][9][10] Whilst Ni, Ru and Co have demonstrated good light-for-heat tendencies for light-driven/light assisted applications, Ni is the most explored element due to low-cost and earth abundance. 3,[10][11][12][13] The application of Ni facilitates an economic and efficient approach for a deep hydrogenation of CO 2 required for CH 4 synthesis.…”

In Situ Nanofluid Dispersion Monitoring by Liquid–Solid Triboelectric Nanogenerator Based on Tuning the Structure of the Electric Double Layer

“…As above, the overall equivalent circuit model is established in Figure 5c. For the equivalent circuit model with n branches, the solution details are given in Note S3, Supporting Information, and the internal capacitance C in of the VFLS-TENG can be expressed by Equation (5).…”

“…Nanofluids are colloidal suspensions by adding nanoparticles in a base liquid with unique features of nano-effects, especially the distinct thermal conductivity, viscosity, and specific heat as heat-transfer dielectrics that are being engineered into transformer oil, turbine lubricants, targets drug carriers, and photothermal conversion medium in various industrial applications. [1][2][3][4][5] However, the van Der Waals forces between nanoparticles inevitably render themselves prone to agglomeration leading to a significant reduction in the surface effects of nanoparticles, which causes a limitation or even degradation of the overall performance of nanofluids. [6][7][8] The nanoparticle dispersion that evaluates the average distance of the nanoparticles in nanofluid is a decisive factor reflecting the degree of the maintained overall performance, which depends mainly on the individual size of the particles and their distributions.…”

Guiding the Driving Factors on Plasma Super‐Photothermal S‐Scheme Core‐Shell Nanoreactor to Enhance Photothermal Catalytic H2 Evolution and Selective CO2 Reduction

“…[30,31] The heat-assisted photocatalysis strategy can maximize the use of solar energy and use part of the photothermal energy to initiate the surface catalytic reaction or adjust the reaction pathway, thereby promoting the conversion efficiency of solar energy to fuel. [32,33] However, for common semiconductor photocatalysts, the photothermal effect is too weak to form a relatively stable local temperature field with the heat dissipating quickly. Therefore, for the efficient photothermal catalytic reactions, chemical reaction active points need to be concentrated in the local temperature field.…”