Nanoarchitectured metal–organic framework/polypyrrole hybrids for brackish water desalination using capacitive deionization

Wang, Ziming; Xu, Xingtao; Kim, Jeonghun; Malgras, Victor; Mo, Ran; Li, Chenglong; Lin, Yuzhu; Tan, Haibo; Tang, Jing; Pan, Likun; Bando, Yoshio; Yang, Tao; Yamauchi, Yusuke

doi:10.1039/c9mh00306a

Cited by 255 publications

(119 citation statements)

References 45 publications

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“…[ 1,2 ] To tackle the looming energy crisis and the related problem of environmental pollution, significant efforts are being made to develop advanced energy storage and conversion systems. [ 3–5 ] Among them, direct formic acid fuel cells (DFAFCs) and direct methanol fuel cells (DMFCs) have attracted particular attention because of their high energy‐conversion efficiency, low pollutant emissions, and simplicity of fabrication as well as the ease of storage and transport of the liquid fuels involved. [ 6 ] Since the power supply capability of fuel cells is largely dependent on the properties of the electrode material used, the design and fabrication of highly efficient electrocatalysts with long lifespans and high activity with respect to the oxidation of formic acid and methanol is essential for improving the performances of DFAFCs and DMFCs.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Multiple‐Twinned Pd Nanoparticles Anchored on Graphitic Carbon Nanosheets for Use as Highly‐Active Multifunctional Electrocatalyst in Formic Acid and Methanol Oxidation Reactions

Wei

Shen

Zhang

et al. 2020

Adv Materials Inter

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Although direct formic acid fuel cells and direct methanol fuel cells have attracted a lot of interest owing to their high energy‐conversion efficiency and low pollutant emissions, their large‐scale commercial applicability is limited by lack of suitable catalysts that exhibit high activity and are cheap. Here, a synergistic morphology and defect engineering strategy for the “clean” synthesis of multiple‐twinned Pd nanoparticles on nitrogen‐doped low‐defect graphitic carbon nanosheets (Pd/NL‐GCN) without using a template or surfactant are presented. The unique grain‐boundary‐enriched multiple‐twinned Pd nanoparticles provide a large number of catalytically active sites, while the graphitic carbon frameworks with a modulated electronic structure afford high electron conductivity as well as strong poison tolerance. Consequently, the Pd/NL‐GCN hybrid shows outstanding catalytic performance with respect to the oxidation of formic acid and methanol, exhibiting a large electrochemically active surface area, high mass activity, and good long‐term durability. Moreover, the catalyst outperforms conventional Pd‐nanoparticle‐based catalysts supported on carbon black, carbon nanotubes, and graphene materials.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Multiple‐Twinned Pd Nanoparticles Anchored on Graphitic Carbon Nanosheets for Use as Highly‐Active Multifunctional Electrocatalyst in Formic Acid and Methanol Oxidation Reactions

Wei

Shen

Zhang

et al. 2020

Adv Materials Inter

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“…Recent advances in nanomaterials have significantly influenced various fields, e.g., material science, medical science, environmental science, magnetics, mechanics, and optics. Because the synthesis method largely determines the physical properties and applications of nanomaterials, developing new methods to design appropriate synthetic routes has been the research hotspot (Wang et al, 2019;Xu et al, 2019). Among the diverse physical and chemical synthesis methods, sonochemistry method has been considered one of the most powerful tools for synthesizing nanomaterials (Bang and Suslick, 2010).…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic Cavitation: A Promising Technology for Industrial-Scale Synthesis of Nanomaterials

et al. 2020

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One of the most challenging issues for the large-scale application of nanomaterials, especially nanocarbons, is the lack of industrial synthetic methods. Sonochemistry, which creates an extreme condition of high pressure and temperature, has been thereby applied for synthesizing a wide variety of unusual nanostructured materials. Hydrodynamic cavitation (HC), characterized by high effectiveness, good scalability, and synergistic effect with other physical and chemical methods, has emerged as the promising sonochemistry technology for industrial-scale applications. Recently, it was reported that HC can not only significantly enhance the performance of biochar, but also preserve or improve the respective chemical composition. Moreover, the economic efficiency was found to be at least one order of magnitude higher than that of conventional methods. Due to the great potential of HC in the industrial-scale synthesis of nanomaterials, the present perspective focuses on the mechanism of sonochemistry, advances in HC applications, and development of hydrodynamic cavitation reactors, which is supposed to contribute to the fundamental understanding of this novel technology.

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“…[51][52][53] Recently,s everal MCDI electrodes have been explored and exhibited clearly higher SAC and SAR than neat CDI electrodes. [54][55][56][57][58] Among pseudocapacitive materials, polyoxometalate (POM)based composites have high capacitance, high stability, and good capacity during charge/discharge. In the family of POMbased pseudocapacitive materials, composites of POMs and conductive polymers are attractive options for MCDI electrodes.…”

Section: Introductionmentioning

confidence: 99%

A Polyoxometalate‐Based Binder‐Free Capacitive Deionization Electrode for Highly Efficient Sea Water Desalination

Liu

Zhang

et al. 2020

Chemistry A European J

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Capacitive deionization is a promising technique in sea water desalination. Compared with common electrodes, mixed capacitive‐deionization electrodes exhibit better performance in sea water desalination because they integrate pseudocapacitance and electric double‐layer capacitance in one system. Herein, a 3D binder‐free mixed capacitive‐deionization electrode was fabricated by direct electrodeposition of SiW12O404− and polyaniline on a 3D exfoliated graphite carrier. In this electrode, SiW12O404−/polyaniline composite particles with a size of about 100–120 nm are dispersed homogenously on the 3D exfoliated graphite carrier. Its specific capacitance reaches 352 F g−1 at 1 A g−1. With increasing current from 1 to 20 A g−1, the specific capacitance only decays by 32 %. When employed in sea water desalination, the performance of this mixed capacitive‐deionization electrode is also excellent. At 1.2 V, the salt adsorption capacity of this mixed electrode reaches 23.1 mg g−1 with a salt adsorption rate of 1.38 mg g−1 min−1 in 500 mg L−1 NaCl. The performance of this electrode is well retained after 30 cycles. The excellent sea water desalination performance originates from the synergistic effect between SiW12O404− and polyaniline. This work has developed polyoxometalate as a new material for capacitive‐deionization electrodes.

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Nanoarchitectured metal–organic framework/polypyrrole hybrids for brackish water desalination using capacitive deionization

Abstract: Metal–organic framework/polypyrrole hybrids are synthesized and directly used in capacitive deionization for the first time.

Cited by 255 publications

References 45 publications

Synthesis of Multiple‐Twinned Pd Nanoparticles Anchored on Graphitic Carbon Nanosheets for Use as Highly‐Active Multifunctional Electrocatalyst in Formic Acid and Methanol Oxidation Reactions

Synthesis of Multiple‐Twinned Pd Nanoparticles Anchored on Graphitic Carbon Nanosheets for Use as Highly‐Active Multifunctional Electrocatalyst in Formic Acid and Methanol Oxidation Reactions

Hydrodynamic Cavitation: A Promising Technology for Industrial-Scale Synthesis of Nanomaterials

A Polyoxometalate‐Based Binder‐Free Capacitive Deionization Electrode for Highly Efficient Sea Water Desalination

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