Encapsulating highly catalytically active metal nanoclusters inside porous organic cages

Yang, Xinchun; Sun, Jian‐Ke; Kitta, Mitsunori; Pang, Huan; Xu, Qiang

doi:10.1038/s41929-018-0030-8

Cited by 323 publications

(221 citation statements)

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“…Among numerous nonprecious materials, the composites composed of earth‐abundant transition metals (e.g., Fe, Co, Ni, Mn, and Cu) and N‐doped carbonaceous materials (TMs/NC) with excellent catalytic stability have been broadly viewed as a class of promising candidates owing to the unique d electron orbital of TMs and the strong TM‐N/C chemical bonding between TMs and NC . However, its electrocatalytic activities are still unsatisfactory . Up to now, numerous investigations have been devoted to enhancing the electrocatalytic activities of TMs/NC by tuning the structures and components, including increase the number of active sites and boost the intrinsic activity .…”

Section: Introductionmentioning

confidence: 99%

Enhanced Electrocatalytic Performance through Body Enrichment of Co‐Based Bimetallic Nanoparticles In Situ Embedded Porous N‐Doped Carbon Spheres

Song

Wang

et al. 2019

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Extending available body space loading active species and controllably tailoring the d‐band center to Fermi level of catalysts are of paramount importance but extremely challenging for the enhancement of electrocatalytic performance. Herein, a melamine‐bridged self‐construction strategy is proposed to in situ embed Co‐based bimetallic nanoparticles in the body of N‐doped porous carbon spheres (CoM‐e‐PNC), and achieve the controllable tailoring of the d‐band center position by alloying of Co and another transition metal M (M = Ni, Fe, Mn, and Cu). The enrichment and exposure of the active sites in the body interior of porous carbon spheres, and the best balance between the adsorption of OH species and the desorption of O2 induced by optimizing the d‐band center position, collectively enhance the oxygen evolution reaction (OER) performance. Meanwhile, the relationship of d‐band center position and OER activity is found to exhibit the volcano curve rule, where the CoNi‐e‐PNC catalyst shows optimal OER performance with an overpotential of 0.24 V at 10 mA cm−2 in alkaline media, outperforming those of the ever‐reported CoNi‐based catalysts. Besides, CoNi‐e‐PNC catalyst also demonstrates high OER stability with slight current decrease after 100 h.

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Section: Introductionmentioning

confidence: 99%

Enhanced Electrocatalytic Performance through Body Enrichment of Co‐Based Bimetallic Nanoparticles In Situ Embedded Porous N‐Doped Carbon Spheres

Song

Wang

et al. 2019

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“…[60][61][62][63][64] Generally, the hydrogen release rate from these LHSMs relies on the catalytic systems. [60][61][62][63][64] Generally, the hydrogen release rate from these LHSMs relies on the catalytic systems.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

“…[65] The first synthesis of AB was reported in 1955. [68] Since the first report of AB hydrolysis using metal nanoparticle catalysts by our group in 2006, [69] a large number of studies have been performed by many groups to prepare MNPs with good dispersion, controlled sizes, and morphologies on different supports to achieve high-efficient catalysis for AB hydrolysis (1) [59][60][61][62][63] H NBH aq 2H O l NH BO aq 3H g [68] Since the first report of AB hydrolysis using metal nanoparticle catalysts by our group in 2006, [69] a large number of studies have been performed by many groups to prepare MNPs with good dispersion, controlled sizes, and morphologies on different supports to achieve high-efficient catalysis for AB hydrolysis (1) [59][60][61][62][63] H NBH aq 2H O l NH BO aq 3H g…”

Section: Ammonia Borane (Ab) Hydrolysismentioning

confidence: 99%

Metal–Organic Frameworks for Energy

Hou

2018

Advanced Energy Materials

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substance transport in the energy storage/ conversion processes. [13][14][15] To meet the requirements of particular applications, metal-organic frameworks (MOFs), a newly emerging class of porous hybrid materials, has been rapidly developed. [16][17][18][19][20] MOFs, also named as porous coordination networks (PCNs) [21] or porous coordination polymers (PCPs), [22] are built from metal nodes (ions or clusters) and a variety of organic linkers to form 1D, 2D, and 3D structures. [23] Compared with conventional porous materials like zeolites, active carbons, and mesoporous silicas, these hybrid inorganic-organic materials possess particular advantages like ultrahigh surface areas (up to 10 000 m 2 g −1 ), well-defined pore sizes (up to 9.8 nm), and large pore volumes with low density (≈0.13 g cm −3 ). [24][25][26] Moreover, MOFs could meet the particular requirements of different applications by feasibly selecting welldefined bridging ligands and metal-based secondary building units (SBUs) through a variety of controllable construction approaches including the predesign [27] and postsynthesis methods. [28] The captivating and unique features make MOFs exhibit fascinating performance in many applications including gas adsorption, [29] drug delivery, [30] luminescence, [31] sensors, [32] magnetism, [33] and others. Especially, electrochemical applications and catalysis of MOFs have attracted tremendous interests in the present energy field. [34] In addition to pristine MOFs, the nanospace of MOFs can be used to encapsulate guest nanomaterials, for example, metal nanoparticles (MNPs), which have shown superior catalytic performances in a series of energy applications. [35][36][37] The organic and metal components of MOFs can also be used as templates/precursors to produce functional nanomaterials, including carbon nanomaterials and metal/ metal oxide materials as well as their composites. [38][39][40][41][42] The present article summarizes our group's research progress on the developments of MNP@MOF composites and MOF derivatives and their energy applications (Scheme 1). We will comprehensively discuss their design and synthetic strategies, structures, and properties as well as their performances in catalysis and electrochemical applications. An outlook and prospective for future works with these MOF-based materials will be presented, especially for energy applications. MOF Composites for CatalysisDue to the inherent properties and unique advantages as discussed above, the use of MOFs for catalysis has been widely Serious environmental problems, growing demand for energy, and the pursuit of environmental-friendly, sustainable, and effective energy technologies to store and transform clean energy have all drawn great attention recently. As a part of the special issue "Energy Research in National Institute of Advanced Industrial Science and Technology (AIST)" this review systematically summarizes the research progress of metal-organic framework (MOF) composites and derivatives in energy applications, including catalyti...

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“…Metal–organic polyhedra (MOPs) as crystalline coordination materials that are constituted by metal ions and organic ligands . Owing to their unique features, such as permanent porosity and unsaturated metal centers, MOPs have shown great potential for applications in drug delivery, gas adsorption and storage, chemical sensors, and catalysis . As a common ligand isophthalic acid and its corresponding derivatized ligands have been widely used to prepare MOP materials .…”

Section: Introductionmentioning

confidence: 99%

Amino‐Induced 2D Cu‐Based Metal–Organic Framework as an Efficient Heterogeneous Catalyst for Aerobic Oxidation of Olefins

Tang

Cai

Xie

et al. 2020

Chemistry A European J

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With the assistance of hydrogen bonds of the o‐amino group, we have successfully tuned a coordination structure from a metal–organic polyhedron (MOP) to a two‐dimensional (2D) metal–organic framework (MOF). The amino group forms hydrogen bonds with the two vicinal carboxylic groups, and induces the ligand to coordinate with copper ions to form the 2D structure. The obtained 2D Cu‐based MOF (Cu‐AIA) has been applied as an efficient heterogeneous catalyst in the aerobic epoxidation of olefins by using air as oxygen source. Without the aggregation problem of active sites in MOPs, Cu‐AIA possesses much higher reactivity than MOP‐1. Furthermore, the amino group of the framework has been used as a modifiable site through post‐synthetic metalation (PSMet) to prepare a 2D MOF‐supported Pd single‐site heterogeneous catalyst, which shows excellent catalytic performance for the Suzuki reaction. It indicates that Cu‐AIA can also work as a good 2D MOF carrier for the derivation of other heterogeneous catalysts.

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Encapsulating highly catalytically active metal nanoclusters inside porous organic cages

Cited by 323 publications

References 53 publications

Enhanced Electrocatalytic Performance through Body Enrichment of Co‐Based Bimetallic Nanoparticles In Situ Embedded Porous N‐Doped Carbon Spheres

Enhanced Electrocatalytic Performance through Body Enrichment of Co‐Based Bimetallic Nanoparticles In Situ Embedded Porous N‐Doped Carbon Spheres

Metal–Organic Frameworks for Energy

Amino‐Induced 2D Cu‐Based Metal–Organic Framework as an Efficient Heterogeneous Catalyst for Aerobic Oxidation of Olefins

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