Jiujun Zhang

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Non-noble Iron Group (Fe, Co, Ni)-Based Oxide Electrocatalysts for Aqueous Zinc–Air Batteries: Recent Progress, Challenges, and Perspectives

Organometallics (2018)

Yi Jin Xiaoyu Liu Pengcheng Liang Kai Wu Jie Xu

With the increasing energy demand, energy conversion and storage technology has garnered intense attention. As one of the competitive electrochemical energy technologies, the zinc–air battery (ZAB) has been considered to be a promising candidate due to its advantages, including low cost and environmental friendliness. To overcome its technical challenges of low activity and stability of ZAB air electrode electrocatalysts, substantial efforts have been made to develop highly active and stable materials for improving the performance. In this paper, a comprehensive review of one type of the ZAB electrocatalyst, that is, iron group (Fe, Co, Ni)-based oxides, is provided. The discussion will be concentrated on the recent progress and challenges associated with this type of electrocatalyst as well as corresponding perspectives.

Electrochemical energy storage

Aqueous medium

10.1021/acs.organomet.8b00508

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Citations (56)

Turning Waste into Wealth: Li2co3 Impurity Conversion into Ionic Conductive and Lithiophlic Interphase for Garnet-Based Solid-State Lithium Batteries

Libin Hu Qiming Duan Yejing Li Shoushuang Huang Wenrong Li

Garnet-type solid-state electrolytes (SSEs) show great potential because of high ionic conductivity and steadiness against metallic Li. However, the unstable property of garnet in air and poor interface contact with Li metal dramatically influence the electrochemical performance. In this manuscript, TiO2 gel is coated on the surface of Li6.75La3Zr1.75Ta0.25O12 (LLZTO) pellets by a spin coating process, to remove the surface impurity and in-situ construct an air-stable and lithiophilic LixTiyOz (LTO) layer on the garnet electrolyte surface. The LTO interface layer acts as a critical role in the interface resistance reduction and suppression of Li dendrite growth. The low interfacial resistance (18.4 Ω cm2) in Li|LTO@LLZTO|Li symmetric cells manifests good wettability. Density functional theory (DFT) calculation results indicate that the modification layer owns higher work of adhesion and interfacial energy, suggesting excellent stability and inhibition in Li dendrite growth. Specifically, the Li symmetric cells with LTO-modified electrolyte show an enhanced current density of 0.9 mA cm-2 and outstanding capability to survive long cycling over 5000 h at 0.1 mA cm-2. The assembled LiFePO4-based full cell displays both high reversible capacity and cycling capability. This work provides a promising strategy to take advantage of interfacial Li2CO3 impurities on the garnet electrolytes.

Interphase

10.2139/ssrn.4837703

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Highly Efficient C@Nip-Pd Bifunctional Electrocatalyst for Energy-Saving Hydrogen Evolution and Value-Added Chemicals Co-Production from Ethanol Aqueous Solution

Hao Chen Xuexian Wu Danni Liu Chunyi Ye Lingui Huang

Energy-saving electrolytic hydrogen production could be realized by replacing sluggish oxygen evolution reaction (OER) with ethanol oxidation reaction (EOR). In this study, a C@NiP-Pd bifunctional catalyst is fabricated towards EOR and hydrogen evolution with high activity (close to the theoretical potential), selectivity, and stability (anti-poisoning). The potential of EOR is reduced by 1.072 V relative to OER at 100 mA cm-2. In the water-ethanol co-electrolysis device, the onset potential is as low as 0.4 V, the power consumption of device is still lower than the water electrolysis theory at high current density. High-selective acetate could be co-produced with hydrogen while without CO2 emission. The high selectivity is derived from the abundant OH* on the surface of Ni, which promotes the conversion of *CH3CO adsorbed on Pd to *CH3COOH. This study provides a new straight to design high-performance electrocatalysts for energy-saving co-generation of hydrogen and value-added chemicals while without CO2 emissions.

Oxygen evolution

Bifunctional catalyst

Electrolysis of water

NIP

10.2139/ssrn.4454185

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Surface reconstruction of NiCoP pre-catalysts for bifunctional water splitting in alkaline electrolyte

Electrochimica Acta (2020)

Wenwen Zou Congli Sun Kangning Zhao Jiantao Li Xuelei Pan

Oxygen evolution

10.1016/j.electacta.2020.136114

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Citations (87)

Novel diverse-structured h-WO3 nanoflake arrays as electrode materials for high performance supercapacitors

Electrochimica Acta (2020)

Feng Zheng Jing Wang Wenbo Liu Jianmin Zhou Hui Li

Tungsten trioxide

Horizontal scan rate

Power density

10.1016/j.electacta.2020.135641

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Citations (41)

A Novel Anion Receptor Additive for ‐40ºC Sodium Metal Batteries by Anion/Cation Solvation Engineering

Angewandte Chemie International Edition (2024)

Meng Li Jinlong Jiang Ying Chen Shoushuang Huang Xiaoyu Liu

Sodium metal batteries, known for their high theoretical specific capacity, abundant reserves, and promising low-temperature performance, have garnered significant attention. However, the large ionic radius of Na

Ionic radius

10.1002/anie.202413806

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Citations (1)

Mechanisms of the Accelerated Li⁺ Conduction in MOF‐Based Solid‐State Polymer Electrolytes for All‐Solid‐State Lithium Metal Batteries

Advanced Materials (2024)

Song Duan Lanting Qian Yun Zheng Yanfei Zhu Xiang Liu

Solid polymer electrolytes (SPEs) for lithium metal batteries have garnered considerable interests owing to their low cost, flexibility, lightweight, and favorable interfacial compatibility with battery electrodes. Their soft mechanical nature compared to solid inorganic electrolytes give them a large advantage to be used in low pressure solid-state lithium metal batteries, which can avoid the cost and weight of the pressure cages. However, the application of SPEs is hindered by their relatively low ionic conductivity. In addressing this limitation, enormous efforts are devoted to the experimental investigation and theoretical calculations/simulation of new polymer classes. Recently, metal-organic frameworks (MOFs) have been shown to be effective in enhancing ion transport in SPEs. However, the mechanisms in enhancing Li

Fast ion conductor

Lithium metal

Polymer Electrolytes

10.1002/adma.202314120

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Citations (26)

Time-frequency analysis of the spatial distribution for Li<sup>+</sup>concentration in the electrolyte throughout the full battery

Scientia Sinica Technologica (2021)

Yuxuan Bai Qiu‐An Huang Liang Wang Juan Wang FangZhou Zhang

Advanced battery management systems can improve the safety, operation efficiency, and service life of the power Li-ion battery. Such a battery management system requires accurate information about the spatial distribution of Li⁺ concentration in the electrolyte. In general, the acquisition of the spatial distribution information of Li⁺ concentration can be described based on the Li battery physicochemical model and its corresponding solution algorithm. In this study, a pseudo-2D electrochemical model is used as the Li battery physicochemical model, which can provide complete information about the spatial distribution of Li⁺ concentration in the electrolyte throughout the full battery. Regarding the solution algorithm, which normally takes considerable time for the traditional finite difference method to discretize the diffusion partial differential equation, a new algorithm combining the finite element and θ method is proposed and a simple and efficient linear basis function is introduced into the finite element method in this study, thus aiming at a quick calculation on the spatial distribution of Li⁺ concentration in the electrolyte throughout the complete battery under different charging/discharging modes. The results of numerical calculation show: (1) in the frequency domain, the numerical solution obtained by the finite element method is highly consistent with the analytical solution obtained by the variation-of-parameters method; (2) in the time domain, the numerical solution obtained by the combination of finite element method and θ method agrees well with that obtained by the finite difference method. The algorithm proposed in this paper provides a new method for obtaining the spatial distribution of Li⁺ concentration in the electrolyte throughout the full battery with high speed and accuracy.

Finite difference

10.1360/sst-2021-0157

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Citations (0)

Foreword

Electrochimica Acta (2015)

Shuhui Sun Jinli Qiao Andy Sun Zhongwei Chen Joey Chung‐Yen Jung

Energy density

10.1016/j.electacta.2015.06.089

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Citations (1)

N‐Doping and Defective Nanographitic Domain Coupled Hard Carbon Nanoshells for High Performance Lithium/Sodium Storage

Advanced Functional Materials (2018)

Shifei Huang Zhiping Li Bo Wang Jiujun Zhang Zhangquan Peng

Abstract Hard carbons (HCs) possess high lithium/sodium storage capacities, which however suffer from low electric conductivity and poor ion diffusion kinetics. An efficient structure design with appropriate heteroatoms doping and optimized graphitic/defective degree is highly desired to tackle these problems. This work reports a new design of N‐doped HC nanoshells (N‐GCNs) with homogeneous defective nanographite domains, fabricated through the prechelation between Ni 2+ and chitosan and subsequent catalyst confined graphitization. The as‐prepared N‐GCNs deliver a high reversible lithium storage capacity of 1253 mA h g −1 , with outstanding rate performance (175 mA h g −1 at a high rate of 20 A g −1 ) and good cycling stability, which outperforms most state‐of‐the‐art HCs. Meanwhile, a high reversible sodium storage capacity of 325 mA h g −1 is also obtained, which stabilizes at 174 mA h g −1 after 200 cycles. Density functional theory calculations are performed to uncover the coupling effect between heteroatom‐doping and the defective nanographitic domains down to the atomic scale. The in situ Raman analysis reveals the “adsorption mechanism” for sodium storage and the “adsorption–intercalation mechanism” for lithium storage of N‐GCNs.

Heteroatom

Nanoshell

10.1002/adfm.201706294

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Citations (487)