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Luo D, Yang B, Mei Z, Kang Q, Chen G, Liu X, Zhang N. Tuning the d-Band States of Ni-Based Serpentine Materials via Fe 3+ Doping for Efficient Oxygen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2022; 14:52857-52867. [PMID: 36383731 DOI: 10.1021/acsami.2c14720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The serpentine germanate materials are promising oxygen evolution reaction (OER) electrocatalysts due to their unique layered crystal structure and electronic structure. However, the catalytic activities still need to be improved to satisfy the practical applications. Adjusting the d-band center of metal active site to balance the adsorption and desorption of intermediates is considered an effective approach to improve the OER activity. In this work, an element dopant strategy was proposed to optimize the d-band state of Ni3Ge2O5(OH)4 serpentine to improve the OER activity. The density functional theory calculations revealed that Fe3+ doping increased the d-band center of the Ni3Ge2O5(OH)4 serpentine, which optimized the adsorption strength of intermediates on surface Ni and Fe atoms so that the Fe3+ doped Ni3Ge2O5(OH)4 (Ni2.25Fe0.75Ge2O5(OH)4) exhibited much reduced Gibbs free energy changes in the rate-determining step compared with pristine serpentine. Inspired by the theoretical calculations, the NixFe3-xGe2O5(OH)4 nanosheets with different amounts of doped Fe3+ were designed and synthesized. The structural characterizations indicated that Fe3+ was successfully doped into Ni3Ge2O5(OH)4 and replaced the Ni2+. The Fe3+ doped NixFe3-xGe2O5(OH)4 nanosheets showed greatly improved OER activity than Ni3Ge2O5(OH)4 and Fe3Ge2O5(OH)4. Further electrochemical analysis illustrated that Fe3+ doping reduced the adsorptive/formative resistance of intermediates and the charge transfer resistance and facilitated the kinetic process of OER. The in situ Raman spectra indicated that the Fe3+ doped Ni3Ge2O5(OH)4 possesses a more active Ni-O bond than pristine Ni3Ge2O5(OH)4. This work provides an effective strategy to tune the d-band center of serpentines for efficient electrocatalytic OER.
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Affiliation(s)
- Dingzhong Luo
- School of Materials Science and Engineering, Central South University, Changsha 410083, China
| | - Baopeng Yang
- School of Materials Science and Engineering, Central South University, Changsha 410083, China
- School of Physics and Electronics, Central South University, Changsha 410083, China
| | - Zongwei Mei
- Yangtze Delta Region Institute (Huzhou) & School of Physics, University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Qing Kang
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan 250022, China
| | - Gen Chen
- School of Materials Science and Engineering, Central South University, Changsha 410083, China
| | - Xiaohe Liu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Ning Zhang
- School of Materials Science and Engineering, Central South University, Changsha 410083, China
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Wen N, Zhang K, Feng J, Zhou Z, Chen S, Wang Y, Liu S, Kuang Q, Dong Y, Zhao Y. One-step in situ hydrothermal synthesis of layered Ni3Ge2O5(OH)4/carbon nanocomposite with superior sodium storage properties. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Xiao Y, Li B, Qin L, Lin H, Li Q, Nie M, Li Y, Liao B. CuGeO3 micro-nanomaterial as Electrocatalyst for hydrogen evolution reaction. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.106075] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Jing YQ, Qu J, Zhai XZ, Chen Z, Liu HJ, Chang W, Yu ZZ. Achieving High Lithium Storage Capacity and Long-Term Cyclability of Novel Cobalt Germanate Hydroxide/Reduced Graphene Oxide Anodes with Regulated Electrochemical Catalytic Conversion Process of Hydroxyl Groups. ACS APPLIED MATERIALS & INTERFACES 2020; 12:14037-14048. [PMID: 32129062 DOI: 10.1021/acsami.0c01127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
To develop ternary transition-metal germanate anodes with superior lithium storage performances for lithium-ion batteries, a novel capacity counterbalance approach in one compound is designed by introducing an electrocatalytic conversion-type component with a positive cycling trend to compensate the negative cycling trend of the GeO2 component. Novel cobalt germanate hydroxide (CGH) nanoplates chemically bonded on reduced graphene oxide (RGO) sheets are thus synthesized with a mild one-pot hydrothermal approach, constructing maximal face-to-face contact interfaces with interfacial bonds to boost the electrochemical conversion reactions. Furthermore, the hydroxyl groups (Co-OH) of CGH nanoplates are regulated by thermal annealing treatments, thus controlling the capacity contribution resulting from the electrocatalytic conversion reaction of LiOH to exactly offset the capacity fading of GeO2. The results on the CGH electrodes at different cycling potentials confirm the stepwise electrochemical reactions of Co, GeO2, and LiOH. The equilibrium of these electrochemical reactions ensures a stable cycling capacity without obvious fluctuations. Consequently, the optimal CGH/RGO hybrid anode delivers a reversible capacity as high as 1136 mA h g-1 at 0.1 A g-1 until 100 cycles. It also exhibits a long cyclability with a retained capacity of 560 mA h g-1 at 1 A g-1 until 1000 cycles. This work demonstrates a general and efficient capacity counterbalance method to highly boost lithium storage performances in terms of high capacity and long-term cyclability.
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Affiliation(s)
- Ya-Qiong Jing
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jin Qu
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xian-Zhi Zhai
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhe Chen
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Hong-Jun Liu
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wei Chang
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhong-Zhen Yu
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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Qu R, Zhang W, Li X, Liu Y, Wei Y, Feng L, Jiang L. Peanut Leaf-Inspired Hybrid Metal-Organic Framework with Humidity-Responsive Wettability: toward Controllable Separation of Diverse Emulsions. ACS APPLIED MATERIALS & INTERFACES 2020; 12:6309-6318. [PMID: 31934738 DOI: 10.1021/acsami.9b21118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Damage to the responsive superwetting material by external stimuli during the responsive process has been a ticklish question in recent years. We overcome this barrier by imitating a peanut leaf and designing a humidity-responsive MIL-100 (Fe)/octadecylamine-coated stainless steel mesh (HR-MOS). Such a material shows superhydrophilicity when ambient humidity is higher than saturated humidity, while it shows superhydrophobicity and high adhesion to water when ambient humidity is lower than saturated humidity. The peanut leaf-like two-level nanostructure of MIL-100 (Fe) is speculated as the principal factor to bring about the binary synergy wettability of the material. Accordingly, the material can realize humidity-controlled separation of at least 12 types of emulsions along with satisfactory durability. The responsive condition of the material is mild and green, which does lower damage to the material and environment. This strategy is the first to realize humidity-responsive wettability transition and provides a novel approach for manually controlled environmental protection.
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Affiliation(s)
- Ruixiang Qu
- Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China
| | - Weifeng Zhang
- Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China
| | - Xiangyu Li
- Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China
| | - Yanan Liu
- Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China
| | - Yen Wei
- Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China
| | - Lin Feng
- Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China
| | - Lei Jiang
- Key Laboratory of Bio-Inspired Smart Interface Sciences, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100084 , P. R. China
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Jing YQ, Qu J, Chang W, Ji QY, Liu HJ, Zhang TT, Yu ZZ. Cobalt Hydroxide Carbonate/Reduced Graphene Oxide Anodes Enabled by a Confined Step-by-Step Electrochemical Catalytic Conversion Process for High Lithium Storage Capacity and Excellent Cyclability with a Low Variance Coefficient. ACS APPLIED MATERIALS & INTERFACES 2019; 11:33091-33101. [PMID: 31414794 DOI: 10.1021/acsami.9b12088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Transition metal carbonates/hydroxides have attracted much attention as appealing anode materials due to their considerable reversible electrochemical catalytic conversion capacity. However, their serious positive or negative trends with cycles caused by the electrochemical catalytic conversion seriously affect their practical applications. Herein, novel one-dimensional cobalt hydroxide carbonate (CHC) nanomaterials are tightly anchored on reduced graphene oxide (RGO) sheets via a facile one-pot hydrothermal synthesis, forming surface-confined domains to further restrict the electrochemical catalytic conversion process. The analysis on the cycled electrodes at varied potentials confirms that the added capacity of CHC arises from the step-by-step reversible reactions of Li2CO3 and LiOH under the electrochemical catalysis of Co metal generated by the conversion reaction of CHC. The reversible reaction of Li2CO3 is followed closely by that of LiOH in the discharge process, while the order is opposite in the charge process. Such a step-by-step electrochemical catalytic conversion process could confine each other to accommodate the volume change and avoid side reactions. The confined effect is further enhanced by limiting the width and length of the CHC, which are determined by regulating the nucleation and growth of CHC on the surface of RGO, leading to an extraordinary cyclability. The optimized CHC/RGO hybrid maintains a high reversible capacity of 1110 mA h g-1 after 100 cycles at 0.1 A g-1, which is much higher than the theoretical value of CHC (506 mA h g-1) on the basis of the recognized conversion reaction. Furthermore, it keeps high reversible capacities of 755 and 506 mA h g-1 after 200 cycles at 1 and 2 A g-1, respectively, exhibiting a high-rate cyclability with the lowest coefficient of variance of 9.4% among the reported ones. The confined step-by-step electrochemical catalytic conversion process facilitates high lithium storage capacity and satisfactory cyclability with a pretty low variance coefficient.
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Zhang N, Yang B, He Y, He Y, Liu X, Liu M, Song G, Chen G, Pan A, Liang S, Ma R, Venkatesh S, Roy VAL. Serpentine Ni 3 Ge 2 O 5 (OH) 4 Nanosheets with Tailored Layers and Size for Efficient Oxygen Evolution Reactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1803015. [PMID: 30328265 DOI: 10.1002/smll.201803015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/16/2018] [Indexed: 05/26/2023]
Abstract
Layered serpentine Ni3 Ge2 O5 (OH)4 is compositionally active and structurally favorable for adsorption and diffusion of reactants in oxygen evolution reactions (OER). However, one of the major problems for these materials is limited active sites and low efficiency for OER. In this regard, a new catalyst consisting of layered serpentine Ni3 Ge2 O5 (OH)4 nanosheets is introduced via a controlled one-step synthetic process where the morphology, size, and layers are well tailored. The theoretical calculations indicate that decreased layers and increased exposure of (100) facets in serpentine Ni3 Ge2 O5 (OH)4 lead to much lower Gibbs free energy in adsorption of reactive intermediates. Experimentally, it is found that the reduction in number of layers with minimized particle size exhibits plenty of highly surface-active sites of (100) facets and demonstrates a much enhanced performance in OER than the corresponding multilayered nanosheets. Such a strategy of tailoring active sites of serpentine Ni3 Ge2 O5 (OH)4 nanosheets offers an effective method to design highly efficient electrocatalysts.
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Affiliation(s)
- Ning Zhang
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Baopeng Yang
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Yuanqing He
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Yulu He
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Xiaohe Liu
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Min Liu
- School of Physical Science and Electronics, Central South University, Changsha, Hunan, 410083, China
| | - Guoyong Song
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083, China
| | - Gen Chen
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Anqiang Pan
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Shuquan Liang
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Renzhi Ma
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Shishir Venkatesh
- Department of Materials Science & Engineering and State Key Laboratory of Millimeter Waves, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, 999077, China
| | - Vellaisamy A L Roy
- Department of Materials Science & Engineering and State Key Laboratory of Millimeter Waves, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, 999077, China
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