New High‐Performance Pb‐Based Nanocomposite Anode Enabled by Wide‐Range Pb Redox and Zintl Phase Transition

Han, Jinhyup; Park, Jehee; Bak, Seong‐Min; Son, Seoung Bum; Gim, Jihyeon; Villa, Cesar; Hu, Xiaobing; Dravid, Vinayak P.; Su, Chi Cheung; Kim, Young‐Sik; Johnson, Christopher; Lee, Eungje

doi:10.1002/adfm.202005362

Cited by 8 publications

(22 citation statements)

References 54 publications

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“…However, the Pb 4f peaks of NH 3 -treated TMOF-6(Cl) were slightly shifted to a lower binding energy, suggesting the possibility of a coordination between Pb 2+ and NH 3 (Figure b). NH 3 is a stronger electron-donating molecule than H 2 O, leading to the higher electron densities locating at Pb 2+ centers and affording the red shift of Pb 4f XPS peaks. − Indeed, the peak shift toward a lower binding energy was more obvious at higher NH 3 concentrations, which further evidenced the higher tendency to form Pb 2+ –NH 3 species. Raman spectroscopy of TMOF-6(Cl) showed a low-frequency broadband at 100–180 cm –1 owing to the presence of Pb–Cl stretching and bending modes (Figure c).…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Robust and Porous Lead Chloride-Based Metal–Organic Frameworks toward a Selective and Sensitive Smart NH₃ Sensor

Chen

Yang

et al. 2021

ACS Appl. Mater. Interfaces

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Organolead halide materials have shown promising optoelectronic properties that are suitable for light-emitting diodes (e.g., strong photoluminescence, narrow emission width, and high charge carrier mobility). However, the vast majority of them have no open porosity or open metal sites for host−guest interactions and are therefore not widely applicable in intrinsic fluorescent sensing of small molecules. Herein, we report a lead chloride-based metal−organic framework (MOF) with high porosity and stability and promising photoluminescent characteristics, performing as a sensitive, selective, and long-term stable fluorescence probe for NH 3 . For the first time, a homemade dynamic realtime photoluminescence monitoring system was developed, which showed that our haloplumbate-based MOF has an immediate response and an extremely low limit of detection (12 ppm) toward NH 3 . A variety of experimental characterization and theoretical calculations evidenced that the photoluminescence quenching was ascribed to the coordination between NH 3 guests and exposed Pb 2+ centers in MOFs. Moreover, a portable on-site smart NH 3 detector was designed based on this haloplumbate-MOF using a 3D printer, and the quantitative recovery experiment demonstrated the effective detection of NH 3 in the range of 15−150 ppm. This study opens a new pathway to design organolead halide-based MOFs to perform on-site chemical sensing of small molecules and shows their high potential to monitor safety concentrations of NH 3 in different industrial sites.

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Section: Resultsmentioning

confidence: 99%

Fabrication of Robust and Porous Lead Chloride-Based Metal–Organic Frameworks toward a Selective and Sensitive Smart NH₃ Sensor

Chen

Yang

et al. 2021

ACS Appl. Mater. Interfaces

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“…Additionally, the Pb and Sb based composites can also be applied as alloy anode materials. Lee et al reported a unique Pb@PbO core‐shell nanoparticles in carbon matrix as anode for LIBs 111 . Further investigation revealed the wide‐range reversible Pb redox (between Pb 2+ and Pb 4− ) and Zintl‐type Li y Pb phase transition occurred during the electrochemical lithium reaction, which provides novel insights of lithium storage mechanism for the Pb‐based alloy anode materials.…”

Section: Interface Engineering Strategies Toward Improved Performancementioning

confidence: 94%

Interface engineering towardhigh‐efficiencyalloy anode for next‐generation energy storage device

Wang

Tang

2021

EcoMat

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Alloy materials are considered as the promising anodes for next‐generation energy storage devices attributed to their high theoretical capacities and suitable working voltage. However, further commercialization is hindered by their remarkable volume change during cycling. The interface engineering has been proposed as an effective strategy to alleviate the volume expansion and improve the electrochemical performance of alloy anode. In this review, we discuss the failure mechanisms for alloy anode during charging/discharging processes. Then the mechanisms of interface engineering for alloy anode were proposed. Next, the interface engineering strategies for alloy anode such as artificial solid electrolyte interphase (SEI), structure control, and electrolyte composition design toward improved performance were summarized. Finally, the challenge and perspective of interface engineering of alloy anodes was discussed. This review may promote the development of alloy anode with improved electrochemical performance for practical renewable energy applications.image

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“…A Pb@PbO−C nanocomposite was synthesized by the high-energy ball milling (HEBM) method using PbO and carbon black, as reported in our previous paper. 29 We selected PbO as the starting material because it is brittle enough to be mechanically pulverized during HEBM. The nanoparticles were then reduced to metallic Pb by carbothermal reduction with carbon black (2PbO + C → 2Pb + CO 2 ) as the continued HEBM process generated local heat.…”

Section: Synthesis and Characterization Of Pb@pbo−c Nanocompositesmentioning

confidence: 99%

“…A more detailed description of the Pb@PbO−C nanocomposite can be found in our previous report. 29 3.2. Electrochemical Performance.…”

Section: Synthesis and Characterization Of Pb@pbo−c Nanocompositesmentioning

confidence: 99%

“…Recently, we have developed Pb@PbO core−shell nanoparticles uniformly embedded in a carbon matrix (Pb@PbO− C nanocomposite), demonstrating high capacity and improved cycling performance in LIB applications (∼600 mAh/g). 29 Building on this previous work, herein, we present the electrochemical sodium storage performance of the Pb@ PbO−C nanocomposite anode. The anode can deliver a reversible capacity of 380 mAh/g at a current density of 20 mA/g, with decent cycle stability over 100 cycles.…”

Section: Introductionmentioning

confidence: 97%

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Evidence of Zintl Intermediate Phase and Its Impacts on Li and Na Storage Performance of Pb-Based Alloying Anodes

et al. 2023

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Anode materials based on conversion and alloying reactions are promising to achieve high energy density of advanced sodium-ion batteries (SIBs). While the chemical similarities between sodium and lithium as alkali elements make the benchmarking strategy practical in developing new high-performance anodes, simply borrowing the anode material from one system to the other does not always guarantee success unless it is based on sound understanding of both Li- and Na-reaction mechanisms. In this work, we report the Na storage performance of a Pb-based anode and its fundamental reaction dynamics. In contrast to its excellent electrochemical performances in Li cells (reversible ∼600 mAh/g), the newly developed Pb@PbO–C nanocomposite anode has limited electrochemical Na reaction properties showing moderate capacity and rate performances (∼300 mAh/g at 20 mA/g). Synchrotron-based X-ray diffraction and absorption spectroscopy studies reveal the fundamental differences in the Na and Li reaction mechanism of the Pb-based anode. Unlike Li reaction, the unique Na reaction mechanism involves the formation of a highly ionic NaPb Zintl phase, which comprises tetrahedral Pb4 clusters, as an intermediate phase. The strong covalent character of the Pb4 Zintl clusters adversely affects the electronic conductivity and thus limits the electrochemical performance of the Pb-based anode in Na cells. These findings provide new insights applicable to developing high-performance alloying anode materials.

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New High‐Performance Pb‐Based Nanocomposite Anode Enabled by Wide‐Range Pb Redox and Zintl Phase Transition

Cited by 8 publications

References 54 publications

Fabrication of Robust and Porous Lead Chloride-Based Metal–Organic Frameworks toward a Selective and Sensitive Smart NH₃ Sensor

Fabrication of Robust and Porous Lead Chloride-Based Metal–Organic Frameworks toward a Selective and Sensitive Smart NH₃ Sensor

Interface engineering towardhigh‐efficiencyalloy anode for next‐generation energy storage device

Evidence of Zintl Intermediate Phase and Its Impacts on Li and Na Storage Performance of Pb-Based Alloying Anodes

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New High‐Performance Pb‐Based Nanocomposite Anode Enabled by Wide‐Range Pb Redox and Zintl Phase Transition

Cited by 8 publications

References 54 publications

Fabrication of Robust and Porous Lead Chloride-Based Metal–Organic Frameworks toward a Selective and Sensitive Smart NH3 Sensor

Fabrication of Robust and Porous Lead Chloride-Based Metal–Organic Frameworks toward a Selective and Sensitive Smart NH3 Sensor

Interface engineering towardhigh‐efficiencyalloy anode for next‐generation energy storage device

Evidence of Zintl Intermediate Phase and Its Impacts on Li and Na Storage Performance of Pb-Based Alloying Anodes

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Product

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Fabrication of Robust and Porous Lead Chloride-Based Metal–Organic Frameworks toward a Selective and Sensitive Smart NH₃ Sensor

Fabrication of Robust and Porous Lead Chloride-Based Metal–Organic Frameworks toward a Selective and Sensitive Smart NH₃ Sensor