2017
DOI: 10.1021/jacs.6b12074
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Abstract: The selectivity control toward aldehyde in the aromatic alcohol oxidation remains a grand challenge using molecular oxygen under mild conditions. In this work, we designed and synthesized Pt/PCN-224(M) composites by integration of Pt nanocrystals and porphyrinic metal-organic frameworks (MOFs), PCN-224(M). The composites exhibit excellent catalytic performance in the photo-oxidation of aromatic alcohols by 1 atm O at ambient temperature, based on a synergetic photothermal effect and singlet oxygen production. … Show more

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Cited by 619 publications
(361 citation statements)
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“…As we know, porphyrin compounds are extensively used for 1 O 2 generation in photocatalysis due to their high efficiency in light harvesting . A series of photochemical experiments was conducted.…”
supporting
confidence: 54%
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“…As we know, porphyrin compounds are extensively used for 1 O 2 generation in photocatalysis due to their high efficiency in light harvesting . A series of photochemical experiments was conducted.…”
supporting
confidence: 54%
“…Moreover, 2,2,6,6‐tetramethyl‐4‐piperidone hydrochloride (4‐oxo‐TMP) was able to trap 1 O 2 to afford the stable nitroxide radical 4‐oxo‐TEMPO, which could be measured through electron spin resonance (ESR). To our delight, a triplet with a g value of 2.006 assigned to the characteristic signal of 4‐oxo‐TEMPO for UNs‐FA was successfully detected, which further confirmed the 1 O 2 generation (Figure c) . As a proof‐of‐concept application, the UNs‐FA was used as catalyst for the photooxidation of 1,5‐dihydroxynaphthalene (1,5‐DHN) to synthesize juglone.…”
mentioning
confidence: 96%
“…[13][14][15][16] Meanwhile, photothermal catalysis has attracted more and more attention. [17][18][19][20] Ap ossible approachf or efficient conversion of solar energy is based on the photothermal effect of nanoparticles (NPs) to generate hot carrierst op articipate in redox reactions, or to dissipate the absorbed photon energy into heat to accelerate the reactionrate. [21][22][23][24][25] Titanium dioxide (TiO 2 )i st he most representative material for photocatalysis, which has the advantages of low cost, nontoxic, high photoelectric conversione fficiency,h igh photocata-lytic activity,h igh chemicals tability,l arge specific surface area and pore volume.…”
Section: Introductionmentioning
confidence: 99%
“…As a kind of active oxygen, singlet oxygen has broad prospects in various applications such as selective organic synthesis, photodynamic therapy,and wastewater treatment because of its high oxidizability and reactivity. [29][30][31][32] The photosensitizer is an ecessary condition for generating singlet oxygen because the triplet molecular oxygen ( 3 O 2 )c annotb ed irectly excited to become 1 O 2 . [33] When the photosensitizer is in the lowest excited singlet state (S1), it absorbs light and then convertst ot he lowest excited triplet state (T1), and then transfers the energy to 3 O 2 to generate 1 O 2 .…”
mentioning
confidence: 99%