Triazine/thiophene‐based microporous organic polymer for electrocatalytic hydrogen evolution reaction

Abstract

In this study, sulfur-enriched microporous organic polymer (MOP) was prepared using one-pot Shiff-base type polycondensation reaction of thiophendicarboxaldehyde with melamine. With 195.731 m 2 g À1 surface area and 0.047 cm 3 g À1 pore volume, the as-synthesized MOP has a cotton-like morphology and a micropore-dominated pore size distribution. After loading MOP with nickel as a co-catalyst, we demonstrated that the obtained framework could be used as an efficient and robust electrocatalyst for hydrogen evolution reaction (HER) in an alkaline medium with the optimum composite (Ni 2 @MOP) exhibiting a low onset potential of À66 mV. Furthermore, the optimum electrocatalyst showed good stability, delivering 91% faradaic efficiency (FE) after a 3.5 h chronoamperometry experiment.

Triazine‐based mesoporous organic polymers as palladium supports: physicochemical properties, porosity and catalytic performance in Suzuki coupling reaction

“…Micro-V (cm 3 wileyonlinelibrary.com/journal/pi Generally, the mesopore volume is higher than the micropore volume, and this result is clearly evident from the gas isotherm, representing the micro-meso type. 13 Thermal stability of triazine-based polymers Thermo-oxidative stability of polymers is one of the most significant parameters concerning the usefulness of polymers in practical applications requiring air sensitivity.…”

“…2 Triazine-conjugated and triazine-thiophene microporous polymers were applied for hydrogen production and electrocatalytic hydrogen evolution reactions. 3,4 Recently, for public health, nitrogen-rich triazine-based polymers have shown a significant performance toward capturing and storing radioactive and volatile iodine. 5 For catalytic applications, a microporous triazine-thiophene-based polymer was prepared and used as a solid acid catalyst to synthesize valuable organic compound 5-hydroxymethylfurfural from carbohydrates.…”

“…For example, microporous triazine‐benzimidazole was prepared to capture and separate CO 2 , CH 4 and N 2 small‐molecule gases from air mixtures 2 . Triazine‐conjugated and triazine‐thiophene microporous polymers were applied for hydrogen production and electrocatalytic hydrogen evolution reactions 3,4 . Recently, for public health, nitrogen‐rich triazine‐based polymers have shown a significant performance toward capturing and storing radioactive and volatile iodine 5 .…”

Ruthenium nanoparticles on covalent triazine frameworks incorporating thiophene for the electrocatalytic hydrogen evolution reaction

“…As a singular example, Yau et al synthesized a CTF-related nickel containing microporous organic polymer incorporating triazine and thiophene moieties by polycondensation of 2,5-thiophenedicarboxaldehyde and melamine; the resulting material demonstrated an overpotential of 597 mV. 67 Among non-thiophene CTF work, Siebels et al deposited Rh- and Pt-NPs on 1,4-dicyanobenzene-based CTF-1 and the materials demonstrated overpotentials of 58 and 111 mV, respectively, in 0.5 mol L −1 H 2 SO 4 . 68 Qiao et al tested molybdenum sulfide NPs on CTF-1 achieving 93 mV.…”