Co3(hexahydroxytriphenylene)2: A conductive metal—organic framework for ambient electrocatalytic N2 reduction to NH3

Xiong, Wei; Cheng, Xin; Wang, Ting; Luo, Yongsong; Feng, Jing; Lu, Siyu; Asiri, Abdullah M.; Li, Wei; Jiang, Zhenju; Sun, Xuping

doi:10.1007/s12274-020-2733-9

Cited by 70 publications

(43 citation statements)

References 61 publications

(33 reference statements)

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“…Noble metals are the widely studied NRR catalysts [6][7][8], but their low activity, poor selectivity and high cost restrict their widespread applications. To this end, extensive studies have been conducted to explore noble-metal-free catalysts, such as transition metal compounds [9][10][11][12][13][14][15][16][17][18], and nonmetallic materials [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

FeTe2 as an earth-abundant metal telluride catalyst for electrocatalytic nitrogen fixation

Guo

Cheng

et al. 2021

Journal of Energy Chemistry

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Section: Introductionmentioning

confidence: 99%

FeTe2 as an earth-abundant metal telluride catalyst for electrocatalytic nitrogen fixation

Guo

Cheng

et al. 2021

Journal of Energy Chemistry

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“…[ 39 ] YbHHTP shows three absorption peaks which could be assigned to the electronic transitions of π–π* (CC, 212 nm) and n–π* (CO, 335 nm) in the partially oxidized organic ligands and charge transfer between metal ions and organic ligands (260 nm) in MOF, respectively. [ 40,41 ] GO/YbHHTP composites exhibit spectra similar to that of pure MOF presumably due to the low content of GO. However, the peaks corresponding to π–π* and n–π* electronic transitions in YbHHTP were found to redshift slightly and decrease notably in intensity after integrating with GO.…”

Section: Resultsmentioning

confidence: 98%

Integrating Conductive Metal–Organic Framework with Graphene Oxide to Highly Sensitive Platform for Electrochemical Sensing

Shi

Zhao

et al. 2021

Adv Materials Inter

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The abnormal level of DA concentration may mean several neurodegenerative diseases including spinocerebellar atrophy, schizophrenia, Parkinsonism, and Alzheimer. [2] Uric acid (UA) is an eventual product of dietary and endogenous purine metabolism and its overproduction is considered to be closely related to many illnesses such as hyperuricemia, gout, pneumonia, leukemia, cardiovascular disease, kidney disease, and neurological diseases. [3] Among the established methods for detecting DA and UA, [4][5][6][7][8] the electrochemical approach has attracted great attentions due to its rapid response, high sensitivity and accuracy, and low cost. [9] Relying on the rational selection and integration of materials, electrochemical detection of biological molecules has been developed rapidly in the past two decades. [10][11][12] Metal-organic frameworks (MOFs) are a kind of crystalline porous materials that consist of metal ions linked by organic ligands. [13] Due to their high surface area, regular but tunable pore size, and tailorable surface chemistry, MOFs have exhibited great potential in the fields of gas separation and storage, [14,15] drug delivery, [16] optoelectronics, [17] sensing, [18] heterogeneous catalysis, [19] and energy storage and conversion. [20,21] Some MOFs also have been explored as candidate materials for electrochemical sensing, [22,23] but their insulated nature might impose to some extent a limit on the further enhancement of sensing performances. In this regard, the conductive MOFs, typified by those containing benzene-/triphenylene-derived ligands, [24,25] would no doubt be more attractive to electrochemical sensing [26] as well as other electrochemical applications including electrocatalysis [27] and energy storage/conversion. [20,28] On the other hand, integrating MOFs with other functional materials provides an alternative route to improving the sensing performances. [29] Graphene oxide (GO), an extensively studied carbonaceous material, has also been integrated with MOFs for applications ranging from gas separation to energy storage. [30][31][32][33][34] In particular, Zhu and co-workers have reported a physical mixing process to prepare highly stable NH 2 -MIL-101(Fe)-GO (MIL = Materials of Institute Lavoisier) composites for the detection of purines and their metabolites. [35] Wang and co-workers have demonstrated the low The rational selection and integration of materials play important roles in advancing electrochemical sensing. Herein, a highly sensitive electrochemical platform based on composites of graphene oxide (GO) and conductive YbHHTP metal-organic framework (HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene) for the detection of dopamine (DA) and uric acid (UA) is reported. The composites are prepared by the introduction of GO into the hydrothermal synthesis of YbHHTP. The morphology, structure, and property of the resultant GO/YbHHTP composites are characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, ultraviolet-visible spectroscopy,...

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“…Compared with the HHTP, the peaks at 679 cm −1 in Co 3 HHTP 2 , 676 cm −1 in Ni 3 HHTP 2 , and 714 cm −1 in Cu 3 HHTP 2 are corresponding to the formation of CuO, CoO, and NiO bond. [ 37–39 ]…”

Section: Resultsmentioning

confidence: 99%

Superb Nonlinear Absorption of Triphenylene‐Based Metal–Organic Frameworks Associated with Abundant Metal d Electrons

Sun

Gao

et al. 2021

Advanced Optical Materials

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The exploitation of high‐performance nonlinear optical (NLO) materials is necessitated by the broad application of ultra‐intensive and ultra‐fast lasers. The superb nonlinear absorption and electronic‐structure‐related NLO response of M3HHTP2 are introduced here, where M is Co(II), Ni(II), or Cu(II) and HHTP is 2,3,6,7,10,11‐hexahydroxytriphenylene. With the laser excitation at 532 nm, the Cu3HHTP2 exhibits a two‐photon absorption (2PA) cross‐section of 1.38 ± 0.11 × 107 GM, a value much larger than those of most reported NLO materials so far. The NLO response of M3HHTP2 correlates strongly with the number of metal d electrons. With metal d electrons number increasing from 7 to 10, the optical nonlinearity of M3HHTP2 under the laser excitation at 532 nm varies from three‐photon absorption (3PA) in Co3HHTP2, a combination of 3PA and 2PA in Ni3HHTP2, to 2PA in Cu3HHTP2. Abundant metal d electrons can mitigate the ground‐state depletion, and therefore the 2PA is enhanced. Accordingly, the superb nonlinear absorption of Cu3HHTP2 can be associated with abundant d electrons in Cu.

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Co3(hexahydroxytriphenylene)2: A conductive metal—organic framework for ambient electrocatalytic N2 reduction to NH3

Cited by 70 publications

References 61 publications

FeTe2 as an earth-abundant metal telluride catalyst for electrocatalytic nitrogen fixation

FeTe2 as an earth-abundant metal telluride catalyst for electrocatalytic nitrogen fixation

Integrating Conductive Metal–Organic Framework with Graphene Oxide to Highly Sensitive Platform for Electrochemical Sensing

Superb Nonlinear Absorption of Triphenylene‐Based Metal–Organic Frameworks Associated with Abundant Metal d Electrons

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