Scalable Dry Production Process of a Superior 3D Net‐Like Carbon‐Based Iron Oxide Anode Material for Lithium‐Ion Batteries

Li, Min; Du, Haoran; Kuai, Long; Huang, Kuangfu; Xia, Yuanyuan; Geng, Baoyou

doi:10.1002/ange.201707647

Cited by 31 publications

(22 citation statements)

References 53 publications

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“…[163] A carbon-encapsulated 3D netlike FeO x /C material was facilely prepared by utilizing filter paper as carbon source and porous scaffold to adsorb ferrite nitrate, and then directly pyrolyzed to achieve the high-yield and high-performance anode materials for lithium ion batteries (LIBs). [164] Researchers could also select easily obtainable porous scaffold as substrate, and then the functional porous composites are produced via coating, loading or deposition. Wu and co-workers recently reported a delicate 2D molecular brushes as a functional layer on the commercial porous polypropylene (PP) separators for Li deposition optimization.…”

Section: Introductionmentioning

confidence: 99%

Emerging Functional Porous Polymeric and Carbonaceous Materials for Environmental Treatment and Energy Storage

Zheng

Lin

Zhang

et al. 2019

Adv Funct Materials

197

118

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The demand for practical and cost-effective environmental treatment and energy storage materials is exploding. Porous polymeric and carbonaceous materials have attracted tremendous interest on account of their welldeveloped porosity and tunable surface chemistry. Functionalization of pore structures further enhances their properties for environmental treatment and energy storage. Herein, the procedures for functionalization of porous structures are introduced, including predesign and postsynthetic strategies. Subsequently, the important advancements of emerging porous polymers for environmental treatment in sorption (e.g., organic micropollutant adsorption, heavy metal ion removal, radionuclide extraction, and oil absorption) and membrane separation (e.g., aqueous micropollutant separation, organic solvent nanofiltration, desalination and pervaporation), as well as for energy storage ranging from the electrodes and separators of batteries to supercapacitor electrodes are highlighted. Moreover, given the combined merits of high intrinsic conductivity, porosity, and physicochemical stability, novel polymer-based porous carbons for energy storage are also highlighted. Key functionalization chemistry for each application is discussed and an in-depth understanding of the structure-property relationships of these functional porous materials is provided. Finally, the challenges and perspectives of emerging functional porous polymeric and carbonaceous materials for environmental treatment and energy storage are proposed.

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Section: Introductionmentioning

confidence: 99%

Emerging Functional Porous Polymeric and Carbonaceous Materials for Environmental Treatment and Energy Storage

Zheng

Lin

Zhang

et al. 2019

Adv Funct Materials

197

118

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“…According to the TGA curves in the Figure S2 , the carbon contents of Fe 3 O 4 @G-500, Fe 3 O 4 @G600 and Fe 3 O 4 @G-700 were 23.29, 22.37, and 22.43%, respectively. High-resolution TEM and SAED images confirmed the crystallization of Fe 3 O 4 nanoparticles (Wang et al, 2013 ), and lattice fringes with a spacing of 0.47 nm can be seen from the HRTEM image, corresponding to the (111) planes of Fe 3 O 4 (Figure 2G ; Li et al, 2017 ).…”

Section: Carbothermal Reduction Methods To Prepare Fe 3 mentioning

confidence: 73%

“…As shown in Figure S1B , the main diffraction peaks of the Fe 3 O 4 @G can be indexed to magnetite-based on their good agreement with JCPDS Card No. 88-0866, indicating the reduction reaction occurred from the Fe 2 O 3 /LPAN precursor (Zeng et al, 2014 ; Li et al, 2017 ). During carbonization, LPAN transforms into graphene, and Fe 2 O 3 is mainly reduced to Fe 3 O 4 .…”

Section: Carbothermal Reduction Methods To Prepare Fe 3 mentioning

confidence: 99%

Carbothermal Synthesis of Nitrogen-Doped Graphene Composites for Energy Conversion and Storage Devices

Yang

et al. 2018

Front. Chem.

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Metal oxides and carbonaceous composites are both promising materials for electrochemical energy conversion and storage devices, such as secondary rechargeable batteries, fuel cells and electrochemical capacitors. In this study, Fe3O4 nanoparticles wrapped in nitrogen-doped (N-doped) graphene nanosheets (Fe3O4@G) were fabricated by a facile one-step carbothermal reduction method derived from Fe2O3 and liquid-polyacrylonitrile (LPAN). The unique two-dimensional structure of N-doped graphene nanosheets, can not only accommodate the volume changes during lithium intercalation/extraction processes and suppress the particles aggregation but also act as an electronically conductive matrix to improve the electrochemical performance of Fe3O4 anode, especially the rate capability. What's more, by etching Fe3O4@G to remove the iron-based oxide template, porous N-doped graphene composites (NGCs) were prepared and presented abundant pore structure with high specific surface area, delivering a specific capacitance of 172 F·g−1 at 0.5 A·g−1. In this way, Fe2O3 was both template and activator to adjust the pore size of graphene. And the effect of specific surface area and pore size tuned by the Fe2O3 activator were also revealed.

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“…The spectra can be decomposed into two doublets at 707.9/720.8 eV and 709.6/723.2 eV, which are ascribed to contributions from Fe bonded to S and the satellite peaks, respectively (Figure 1i). 46,47 The splitting of the S2p and Mo3d spectra (Supplementary Figure 6a, b X-ray absorption near-edge spectroscopy (XANES) and extended X-ray absorption fine structure (EXAFS) were acquired to elucidate the electronic and coordination structure of Fe-MoS2. Figure 1j shows the Fe K-edge XANES profiles for Fe-MoS2, compared to that of Fe2O3, FeS, and Fe metal used as references for Fe 3+ , Fe 2+, and Fe , respectively.…”

Section: Synthesis and Characterization Of The Fe-mos2 Sacmentioning

confidence: 99%

3.4 % solar-to-ammonia efficiency from nitrate using Fe single atomic catalyst supported on MoS2 nanosheets

Zhang

Liu

et al. 2021

Preprint

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Electrochemical synthesis of NH3 is a carbon-free alternative to the traditional Haber-Bosch process. The challenge with nitrogen reduction reaction (NRR) to NH3 is cleavage of the inert N≡N triple bond of nitrogen gas. Obtaining NH3 from environmental pollutants, such as nitrates or nitrites, is a more practical route than NRR. However, reduction of nitrates or nitrites to ammonia is currently hampered by modest Faradaic efficiencies, typically below 10 %. Here, we report a novel heterogeneous catalyst based on iron (Fe) single-atoms supported on two-dimensional MoS2 (Fe-MoS2) for the nitrate reduction reaction (NO3RR). We have found that Fe-MoS2 exhibits remarkable performance with a maximum Faradaic efficiency of 98 % for NO3RR to NH3 at an overpotential of -0.48 V vs. the reversible hydrogen electrode (RHE) as confirmed by our isotopic nuclear magnetic resonance (NMR) analyses. Density function theory (DFT) calculations reveal that the enhanced selectivity for the production of NH3 from single Fe atoms supported on MoS2 is attributed to a reduced energy barrier of 0.38 eV associated with de-oxidation of *NO to *N – the usual potential limiting step in NO3RR. We assembled our catalyst in a two-electrode electrolyzer coupled to an InGaP/GaAs/Ge triple-junction solar cell to demonstrate a solar-to-ammonia (STA) conversion efficiency of 3.4 % and a yield rate of 0.03 mmol h-1 cm-2 equivalent to 510 µg h-1 cm-2. Our results open new avenues for design of single-atom catalysts (SAC) for the realization of solar-driven ammonia production.

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Scalable Dry Production Process of a Superior 3D Net‐Like Carbon‐Based Iron Oxide Anode Material for Lithium‐Ion Batteries

Cited by 31 publications

References 53 publications

Emerging Functional Porous Polymeric and Carbonaceous Materials for Environmental Treatment and Energy Storage

Emerging Functional Porous Polymeric and Carbonaceous Materials for Environmental Treatment and Energy Storage

Carbothermal Synthesis of Nitrogen-Doped Graphene Composites for Energy Conversion and Storage Devices

3.4 % solar-to-ammonia efficiency from nitrate using Fe single atomic catalyst supported on MoS2 nanosheets

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