21:I[432972,["/_next/static/chunks/bb923814e1f4d2e9.js","/_next/static/chunks/dd3ee9f5b7716ca6.js","/_next/static/chunks/4204a0ae82542ca8.js","/_next/static/chunks/1270dead247da766.js","/_next/static/chunks/6e1aa89a642f40be.js","/_next/static/chunks/2d7aa753e81324a8.js","/_next/static/chunks/8ffd0b71567920d8.js","/_next/static/chunks/67ea6dfd21f16c5f.js","/_next/static/chunks/24eb4379f68013fd.js","/_next/static/chunks/b8cd775ffdf935bd.js","/_next/static/chunks/983103cd9eb7b428.js","/_next/static/chunks/263f2cdcb9aa2341.js","/_next/static/chunks/294b9525248c8e5f.js"],"default"] 22:T533,Two novel cobalt(II)-based metal–organic frameworks (MOFs), namely, {[Co3(TTHA)(bibp)2(H2O)]}n (1) and {[Co2(H2TTHA)(bidpe)2]}n (2) (H6TTHA = 1,3,5-triazine-2,4,6-triamine hexaacetic acid, bibp = 4,4′-bis(imidazolyl)biphenyl, bidpe = 4,4-bis(imidazoly)diphenyl ether), were hydrothermally prepared based on the mixed ligands strategy and fully characterized. Due to the rich coordination modes of the carboxylic acid ligand, 1 possesses a three-dimensional (3D) structure with two secondary building units ([Co3N3(CO2)4(CO)4] and [Co2N2(CO2)4]), whereas 2 exhibits a tangled one-dimensional (1D) chain structure and further forms a 3D structure assembled by weak interactions. Interestingly, 1 can serve as an unusual turn-on sensor for the detection of trivalent metal ions (Al3+, Cr3+, and Fe3+) in an aqueous solution with a low detection limit, and 2 shows high-sensitivity fluorescence turn-off behavior toward polystyrene and styrene biomarker phenylglyoxylic acid (PGA). Significantly, 2 can effectively sense the PGA in complicated biological environments. The mechanism study indicated that the absorbance-caused enhancement mechanism is responsible for the fluorescence turn-on phenomena of 1 induced by trivalent metal ions, while the occurrence of the structural collapse of 2 leads to a turn-off effect toward PGA.23:T4b2,A structural mechanics and energy storage difunctional supercapacitor based on a geopolymer membrane injected with a 0.5 M Na₂SO₄ electrolyte and a pseudocapacitive electrode Mn₇O₁₃ is designed and assembled. The geopolymer membrane is prepared as a structural electrolyte with metakaolin and alkaline activator solution. The wide channels in the geopolymer matrix provide paths for ion movement. The Mn₇O₁₃ electrode is prepared by different hydrothermal treatments at different temperatures and times, and assembled with activated carbon and a geopolymer with different moduli to form a difunctional supercapacitor. The results show that the electrode sample annealed at 300 °C for 45 min after hydrothermal treatment at 160 °C for 24 h exhibits the best comprehensive performance. The specific capacitance of the electrode is 175.5 F g^-1 (2392.6 F m^-2) at 1 A g^-1, and the specific capacitance of the difunctional structure supercapacitor assembled with a geopolymer with a modulus of 1.2 and cured for 28 days is 144.12 F g^-1 (1960.0F m^-2) at 1 A g^-1 under 15 MPa.

#	Concept	H-Index	Publications	Citations
1	Engineering	1	1	21
2	Chemical Engineering	1	1	21
3	Chemistry	1	1	21
4	Materials Science	1	1	21
5	Catalysis	1	1	21

	Year	Citations

About

Top Concepts