Two-dimensional flower-like cobalt-porphyrin MOF/rGO composite anodes for high-performance Li-ion batteries

Han, Yang; Liu, Zhoujia; Zheng, Fenfen; Bai, Yixuan; Zhang, Zhiqian; Li, Yong; Xiong, Wenhui; Zhang, Junhao; Yuan, Aihua

doi:10.1016/j.jallcom.2021.160531

Cited by 80 publications

(41 citation statements)

References 30 publications

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“…As shown in Figure d, TEM further demonstrates the layered structure characteristics of NOH50. This two-dimensional characteristic assists in electrode/electrolyte contact and Li + trapping and also reduces charge transportation . The lattice fringes of NOH50 with pitches of 0.374 and 1.122 nm were observed by high-resolution transmission electron microscopy (HRTEM, Figure e,f), corresponding to the (0 6 0) and (0 2 0) planes of H 3 ONb 3 O 8 , which are consistent with the XRD results.…”

Section: Resultssupporting

confidence: 85%

“…This two-dimensional characteristic assists in electrode/electrolyte contact and Li + trapping and also reduces charge transportation. 48 The lattice fringes of NOH50 with pitches of 0.374 and 1.122 nm were observed by high-resolution transmission electron microscopy (HRTEM, Figure 3e,f), corresponding to the (0 6 0) and (0 2 0) planes of H 3 ONb 3 O 8 , which are consistent with the XRD results. It is worth mentioning that the size of the smallest structural unit niobium oxide of the substance has reached the quantum dot level.…”

Section: Resultssupporting

confidence: 83%

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Layered Niobium Oxide Hydrate Anode with Excellent Performance for Lithium-Ion Batteries

Liang

Jiang

et al. 2021

ACS Appl. Mater. Interfaces

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Benefiting from the advantages of cost-effectiveness and sustainability, lithium-ion batteries (LIBs) are recognized as a next-generation energy technology with great development potential. Herein, niobium oxide hydrate (H 3 ONb 3 O 8 ) synthesized by a facile and inexpensive solvothermal method is proposed as the anode of LIBs. It is a layered two-dimensional material composed of negatively charged two-dimensional lamellae and positively charged interlayer hydronium ions. The former consist of NbO 6 octahedral units connected by bridging oxygen. Because of the mutual effect of hydronium ions and niobium oxide quantum dots, niobium oxide hydrate exhibits excellent electrochemical activity when used as an anode material. This compound is first applied to lithium-ion batteries, obtaining a high specific capacity (1232 mAh g −1 ) at 100 mA g −1 and maintaining an outstanding performance after 200 cycles. Therefore, this work not only proposes a simple preparation method of niobium oxide hydrate but also expands the variety of high-performance anode materials.

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Section: Resultssupporting

confidence: 85%

Section: Resultssupporting

confidence: 83%

Layered Niobium Oxide Hydrate Anode with Excellent Performance for Lithium-Ion Batteries

Liang

Jiang

et al. 2021

ACS Appl. Mater. Interfaces

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“…Raman spectra of TCPP-Co and PFC-72-Co display signature vibration bands of porphyrins as reported in previous works (Supplementary Fig. S7 ) 42 . The band at 1017 cm −1 corresponds to the Co-N stretching vibration.…”

Section: Resultssupporting

confidence: 75%

Theory-guided design of hydrogen-bonded cobaltoporphyrin frameworks for highly selective electrochemical H2O2 production in acid

et al. 2022

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The pursuit of selective two-electron oxygen reduction reaction to H2O2 in acids is demanding and largely hampered by the lack of efficient non-precious-metal-based electrocatalysts. Metal macrocycles hold promise, but have been relatively underexplored. Efforts are called for to promote their inherent catalytic activities and/or increase the surface exposure of active sites. In this contribution, we perform the high-throughput computational screening of thirty-two different metalloporphyrins by comparing their adsorption free energies towards key reaction intermediates. Cobalt porphyrin is revealed to be the optimal candidate with a theoretical overpotential as small as 40 mV. Guided by the computational predictions, we prepare hydrogen-bonded cobaltoporphyrin frameworks in order to promote the solution accessibility of catalytically active sites for H2O2 production in acids. The product features an onset potential at ~0.68 V, H2O2 selectivity of >90%, turnover frequency of 10.9 s−1 at 0.55 V and stability of ~30 h, the combination of which clearly renders it stand out from existing competitors for this challenging reaction.

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“…[149][150][151][152][153][154][155][156][157][158][159][160][161][162] COF and MOF have also been widely applied in the field of energy storage in the form of Li-ion batteries, supercapacitors, and hydrogen storage for their porous structure and atom-level designability. [163][164][165][166][167][168][169][170][171][172][173][174][175] Intimate hybridization between the two components was highly desirable by combining the merits of COF and MOF to acquire the maximum performance. Wang and co-workers report a facile bottom-up strategy to prepare highly dispersed Co 3 O 4 supported on N-doped porous carbon (NPC).…”

Section: Energy Storagementioning

confidence: 99%

Progress in Hybridization of Covalent Organic Frameworks and Metal–Organic Frameworks

Deng

Wang

Xiao

et al. 2022

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Metal–organic frameworks (MOFs) and covalent organic frameworks (COFs) hybrid materials are a class of porous crystalline materials that integrate MOFs and COFs with hierarchical pore structures. As an emerging porous frame material platform, MOF/COF hybrid materials have attracted tremendous attention, and the field is advancing rapidly and extending into more diverse fields. Extensive studies have shown that a broad variety of MOF/COF hybrid materials with different structures and specific properties can be synthesized from diverse building blocks via different chemical reactions, driving the rapid growth of the field. The allowed complementary utilization of π‐conjugated skeletons and nanopores for functional exploration has endowed these hybrid materials with great potential in challenging energy and environmental issues. It is necessary to prepare a “family tree” to accurately trace the developments in the study of MOF/COF hybrid materials. This review comprehensively summarizes the latest achievements and advancements in the design and synthesis of MOF/COF hybrid materials, including COFs covalently bonded to the surface functional groups of MOFs (MOF@COF), MOFs grown on the surface of COFs (COF@MOF), bridge reaction between COF and MOF (MOF+COF), and their various applications in catalysis, energy storage, pollutant adsorption, gas separation, chemical sensing, and biomedicine. It concludes with remarks concerning the trend from the structural design to functional exploration and potential applications of MOF/COF hybrid materials.

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Two-dimensional flower-like cobalt-porphyrin MOF/rGO composite anodes for high-performance Li-ion batteries

Cited by 80 publications

References 30 publications

Layered Niobium Oxide Hydrate Anode with Excellent Performance for Lithium-Ion Batteries

Layered Niobium Oxide Hydrate Anode with Excellent Performance for Lithium-Ion Batteries

Theory-guided design of hydrogen-bonded cobaltoporphyrin frameworks for highly selective electrochemical H2O2 production in acid

Progress in Hybridization of Covalent Organic Frameworks and Metal–Organic Frameworks

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