The engineering and economic feasibility of large‐scale electrochemical reduction of carbon dioxide to formate salts and formic acid is the focus of this Full Paper. In our study we investigated the ...long‐term performance of tin and other proprietary catalysts in the reduction of carbon dioxide to formate/formic acid at a gas/solid/liquid interface, using a flow‐through reactor. The overall economics and energy consumption of the process are evaluated through a value chain analysis. The sensitivity of the net present value of the process to various process parameters is examined.
Formic acid and formate salts produced from carbon dioxide are commercially attractive end products for the energy, transportation, pharmaceutical, and other industries. Recent progress towards a commercially viable electrochemical route to reduce carbon dioxide into formic acid is described. A value chain analyses of two different production scenarios is compared to carbon capture and geological sequestration.
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BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SBCE, SBMB, UL, UM, UPUK
Three different bis-BODIPY-meso-phenyleneethynylene dimers were prepared in a straightforward manner following a sequence Liebeskind-Srogl- Stille cross-couplings, which allowed us to control the ...architecture of the final products. The phenyleneethynylene (PE) bridged bis-meso-BODIPYs, indistinctly of the ortho, meta or para substitution exhibit in dichloromethane, a main excitonic (S0–S1 electronic transition) peak at 503 ± 1 nm, similar to that of the monomer meso-phenyl BODIPY, evidencing the poor electronic communication between the two BODIPYs. This is supported by theoretical study where modest energy splitting of the S0–S1 electronic transition was found and by voltammetry where voltammograms of para and meta dimers show similar redox process to that of the monomer. The fluorescence spectra are also quite similar, but the ortho dimer presents two emission bands. The fluorescence quantum yield (φ) is much lower for para (0.6 %) and meta (2.9 %) dimers with respect to the monomer (4.3 %) and to the ortho homologous (15.1 %). This is likely due to non-radiative losses derived from the free rotation of the two BODIPYs in meso that is restricted in the ortho substitution. Intramolecular charge transfer (ICT) through photoinduced symmetry breaking can also occur in this latter dimer according to the Weller equation using the voltammetric oxidation/reduction potentials, and to the fluorescence quenching in polar solvents. Noncovalent interactions studies indicate significant π-π interactions in the excited state that could promote excimer formation. For which, the two emission bands in this compound could be also due to a monomer-like ICT state and excimers.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
The Front Cover shows how the most typical elements present in electrochemistry work together to power and light up the 10th anniversary sign celebrating the last decade of excellent research ...published in ChemElectroChem. More information about the journal can be found in the Editorial by Rosalba A. Rincón. Cover art by Tomáš Belloň (IOCB Prague).
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FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SBCE, SBMB, UL, UM, UPUK
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•Ammonia synthesis through electrochemical nitrate reduction was summarized.•Mechanisms in electrochemical nitrate reduction to ammonia were briefly discussed.•Electrocatalysts used ...for nitrate reduction to ammonia were introduced.•Guidance can be provided for the design and development of advanced electrocatalysts.
Nitrate (NO3-) pollution has become increasingly prominent due to industry and agriculture. Electrochemical reduction can convert NO3- into high value-added ammonia (NH3) and remove NO3- pollution. This review focuses on the latest research progress in the field of electrochemical nitrate reduction reaction (NO3-RR) to NH3. The mechanism of NO3-RR is briefly discussed. Catalysts, as well as qualitative and quantitative methods for the detection of NH3 are also summarized. Finally, the challenges and prospects in this field are discussed. We hope this mini review aids researchers in the design and development of advanced research strategies for electrochemical NO3--to-NH3 processes.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
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