Triboelectric nanogenerators powered electrodepositing tri-functional electrocatalysts for water splitting and rechargeable zinc-air battery: A case of Pt nanoclusters on NiFe-LDH nanosheets

Han, Junxing; Meng, Xiaoyi; Lu, Liang; Wang, Zhong Lin; Sun, Chunwen

doi:10.1016/j.nanoen.2020.104669

Cited by 126 publications

(72 citation statements)

References 44 publications

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“…Ever since the discovery of TENG by Wang's group in 2012, TENG had been utilized as an external power supply for water splitting [165,166]. In terms of energy conversion of TENG, the transfer of contact-induced charges between two triboelectric materials with opposite polarity produced a potential difference during the separation of them [167][168][169][170][171]. Then the produced potential difference would prompt the flow of electrons/ions in the external circuit; hence, it could be utilized as power source [168,[172][173][174][175][176][177][178].…”

Section: Water Splitting Driven By a Triboelectric Nanogeneratormentioning

confidence: 99%

Water Splitting: From Electrode to Green Energy System

et al. 2020

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HIGHLIGHTS • Bifunctional electrode and electrolytic cell configuration for electrochemical water splitting are reviewed. • The different green energy systems powered water splitting are summarized and discussed. • An outlook of future research prospects for the development of green energy system powered water splitting in practical application process is proposed. ABSTRACT Hydrogen (H 2) production is a latent feasibility of renewable clean energy. The industrial H 2 production is obtained from reforming of natural gas, which consumes a large amount of nonrenewable energy and simultaneously produces greenhouse gas carbon dioxide. Electrochemical water splitting is a promising approach for the H 2 production, which is sustainable and pollution-free. Therefore, developing efficient and economic technologies for electrochemical water splitting has been an important goal for researchers around the world. The utilization of green energy systems to reduce overall energy consumption is more important for H 2 production. Harvesting and converting energy from the environment by different green energy systems for water splitting can efficiently decrease the external power consumption. A variety of green energy systems for efficient producing H 2 , such as two-electrode electrolysis of water, water splitting driven by photoelectrode devices, solar cells, thermoelectric devices, triboelectric nanogenerator, pyroelectric device or electrochemical water-gas shift device, have been developed recently. In this review, some notable progress made in the different green energy cells for water splitting is discussed in detail. We hoped this review can guide people to pay more attention to the development of green energy system to generate pollution-free H 2 energy, which will realize the whole process of H 2 production with low cost, pollution-free and energy sustainability conversion.

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Section: Water Splitting Driven By a Triboelectric Nanogeneratormentioning

confidence: 99%

Water Splitting: From Electrode to Green Energy System

et al. 2020

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“…The following are available online at , Figure S1: Scanning electron microscopic (SEM) images of (a, b) bulk Nb 2 CT x ; (c, d) Pt/ Nb 2 CT x catalyst synthesized by ball milling, Figure S2: Transmission electron microscopic (TEM) images of Pt/ Nb 2 CT x catalyst synthesized by ball milling, Figure S3: Selective area electron diffraction (SAED) of ( a ) pristine Nb 2 CT x and ( b ) Pt/ Nb 2 CT x -600, Figure S4: The intensity profile across the lattice of pristine Nb 2 CT x and Pt/ Nb 2 CT x , Figure S5: The XRD pattern of pristine Nb 2 CT x , Figure S6: The whole spectrum survey of Pt/Nb 2 CT x and Pt/Nb 2 CT x -600 calibrated with the main peak of C 1s at 284.8 eV, Figure S7: The HER polarization curve of the pristine Nb 2 CT x substrate, Figure S8: The HER Tafel plot of the pristine Nb 2 CT x substrate, Figure S9: TEM images of Pt/ Nb 2 CT x -600 after a 5k ADT cycles long-term stability test, Figure S10: XRD patterns of Pt/ Nb 2 CT x -600 and Pt/ Nb 2 CT x -600 after a 5k ADT cycles long-term stability test, Figure S11: Pt 4f XPS spectrum of Pt/ Nb 2 CT x -600 after a 5k ADT cycles long-term stability test, Table S1: The EIS fitting results of Pt/Nb 2 CT x and Pt/Nb 2 CT x -600 catalysts, Table S2: HER activity for recently reported noble metal catalysts in 0.5 M H 2 SO 4 (* represents 0.1M H 2 SO 4 ). References [ 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 ] are cited in the supplementary materials…”

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confidence: 99%

Mechanochemical Synthesis of Pt/Nb2CTx MXene Composites for Enhanced Electrocatalytic Hydrogen Evolution

Fan

et al. 2021

Materials

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Production of hydrogen from water splitting has been considered as a promising solution for energy conversion and storage. Since a noble metal-based structure is still the most satisfactory but scarce kind of catalyst, it is significant to allow for practical application of such catalysts by engineering the heterogeneous structure and developing green and facile synthetic strategies. Herein, we report a mechanochemical ball milling synthesis of platinum nanoclusters immobilized on a 2D transition metal carbide MXene (Nb2CTx) as an enhanced catalyst for hydrogen evolution. After annealing at 600 °C, ultrafine Pt3Nb nanoclusters are formed on the Pt/Nb2CTx catalyst. As prepared, the Pt/Nb2CTx-600 catalyst demonstrates superior electrochemical HER activity and stability with an ultralow overpotential of 5 mV and 46 mV to achieve 10 mA cm−2 and 100 mA cm−2, respectively, in comparison with other Nb2CTx-based catalysts and commercial Pt/C catalysts. Moreover, the remarkable durability is also confirmed by accelerated durability tests (ADTs) and long-term chronoamperometry (CA) tests. The excellent HER performance was attributed to high Pt dispersion and more active site exposure by the mechanochemical process and thermal treatment. Such results suggest that the mechanochemical strategy provides a novel approach for rational design and cost-effective production of electrocatalysts, also providing other potential applications in a wide range of areas.

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“…ZABs have become one of the most promising energy storage technologies because of their high theoretical energy density and low price. [ 36–39 ] We also examined the feasibility of the obtained NiCoFeP NFs catalyst as the cathode for rechargeable ZABs. Figure a shows the long‐term cycling performance of the ZAB using NiCoFeP NFs catalyst at a current density of 10 mA cm −2 with each cycle of 30 min.…”

Section: Resultsmentioning

confidence: 99%

NiCoFeP Nanofibers as an Efficient Electrocatalyst for Oxygen Evolution Reaction and Zinc–Air Batteries

Bian

Sun

2021

Adv Energy and Sustain Res

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The development of high‐performance and low‐cost bifunctional electrocatalysts is still challenging for solving current energy and environmental problems. However, most electrocatalysts require complex synthesis processes, which prohibit mass production. Herein, NiCoFeP nanofibers are synthesized by phosphating the electrospun Ni,Co precursor nanofibers and subsequent displacement reaction of Ni and Fe3+ via impregnation of Fe(NO3)3 solution. The obtained NiCoFeP nanofibers catalyst possesses high intrinsic activity, abundant active sites, and superior kinetics, which shows excellent oxygen evolution reaction (OER) performance with low overpotential of 0.309 V at 50 mA cm−2 in 1 m KOH solution. It also exhibits a long‐term cycling performance for 200 h at 10 mA cm−2 as the cathode for zinc–air battery. Furthermore, it is demonstrated that this displacement reaction method is also suitable for preparing other catalysts NiMnP and NiCuP to enhance their OER performance. This work presents a novel approach for the fabrication of multimetallic catalysts for electrocatalysis.

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Triboelectric nanogenerators powered electrodepositing tri-functional electrocatalysts for water splitting and rechargeable zinc-air battery: A case of Pt nanoclusters on NiFe-LDH nanosheets

Cited by 126 publications

References 44 publications

Water Splitting: From Electrode to Green Energy System

Water Splitting: From Electrode to Green Energy System

Mechanochemical Synthesis of Pt/Nb2CTx MXene Composites for Enhanced Electrocatalytic Hydrogen Evolution

NiCoFeP Nanofibers as an Efficient Electrocatalyst for Oxygen Evolution Reaction and Zinc–Air Batteries

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