Highly efficient photocatalytic formic acid decomposition to syngas under visible light using CdS nanorods integrated with crystalline W₂N₃ nanosheets

Abstract

Syngas (H2/CO) production by photocatalytic formic acid decomposition is a promising method for solar energy conversion. Furthermore, syngas can be used as a fuel in internal combustion engines and can...

Photocatalytic Conversion of Formic Acid to Syngas (CO + H2) and Methane with Homogeneous Molecular Cobaloxime Catalysts

“…According to the reported literatures, CdS NRs were prepared through a solvothermal method . Briefly, 60 mL ethylenediamine was used to dissolve 20.25 mmol CdCl 2 ·2.5H 2 O and 60.75 mmol thiourea.…”

“…According to the reported literatures, CdS NRs were prepared through a solvothermal method. 11 Briefly, 60 mL ethylenediamine was used to dissolve 20.25 mmol CdCl 2 • 2.5H 2 O and 60.75 mmol thiourea. Subsequently, the mixture was transferred to a 100 mL Teflon-lined stainless steel autoclave and held at 160 °C for 48 h. After cooling to room temperature, the yellow powder was obtained by centrifugation with ethanol and water several times.…”

“…With the increasing consumption of fossil fuel energy and the increase in environmental pollution, developing clean energy alternatives to traditional fossil fuels is highly desirable. − Formic acid (HCOOH, FA) has been widely researched in recent decades as a potential hydrogen storage material. − It has many advantages, such as high hydrogen storage capacity (4.3 wt %), low toxicity, straightforward transportation, refueling, and handling, comparable to those of diesel and gasoline. − The decomposition of formic acid mainly involves two pathways: dehydrogenation and dehydration. , As fuels for the future, syngas can be produced when these two reactions occur simultaneously. It is directly useful in internal combustion engines and can also be a feedstock for the chemical industry. − However, the high requirements for FA decomposition reactions, such as noble-metal-based catalysts and extra energy input, restrict further progress in practical applications. − Recently, photocatalytic syngas production from formic acid has attracted much attention because it is economically feasible and environmentally friendly .…”

Few‐Layer Fullerene Network for Photocatalytic Pure Water Splitting into H2 and H2O2

“…The photocurrent of the few-layer C 60 nanosheets is much higher than that of bulk Mg 4 C 60 , suggesting a more efficient charge-separation process. [22] These efficient charge transfer and separation processes result in good photocatalytic performance of fewlayer C 60 nanosheets for splitting pure water into H 2 and H 2 O 2 .…”

Boosting photocatalytic conversion of formic acid to CO over P-doped CdS

“…8 Notably, star semiconductor CdS has the capacity to exhibit visible light response and has a suitable energy band structure, 9,10 and has been used in the photocatalytic decomposition of HCOOH. 11 However, in most of the work, the decomposition products of HCOOH are H 2 and the equivalent amount of carbon dioxide (CO 2 ), 3,12,13 while only a few works report the generation of CO. 14,15 H 2 can be produced by many environmentally friendly means, which could be obtained by electrocatalytic and photocatalytic water splitting. [16][17][18] Whereas the current environmentally friendly method of producing CO mainly relies on the CO 2 reduction reaction, 19,20 and the reaction is usually limited by the CO 2 concentration and storage method.…”