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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2220-8054-2021-12-2-182-187</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-357</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>НАНОСИСТЕМЫ: ФИЗИКА, ХИМИЯ, МАТЕМАТИКА</subject></subj-group></article-categories><title-group><article-title>Layer-by-layer synthesis of Zn-doped MnO2 nanocrystals as cathode materials for aqueous zinc-ion battery</article-title><trans-title-group xml:lang="ru"><trans-title>Послойный синтез нанокристаллов MnO2, легированных цинком, в качестве катодных материалов для водной цинк-ионной батареи</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Lobinsky</surname><given-names>A. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Lobinsky</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Peterhof, 198504 Saint Petersburg</p></bio><bio xml:lang="en"><p>Peterhof, 198504 Saint Petersburg</p></bio><email xlink:type="simple">lobinsky.a@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Kaneva</surname><given-names>M. V.</given-names></name><name name-style="western" xml:lang="en"><surname>Kaneva</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Peterhof, 198504 Saint Petersburg</p></bio><bio xml:lang="en"><p>Peterhof, 198504 Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Saint Petersburg State University</institution></aff><aff xml:lang="en"><institution>Saint Petersburg State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>28</day><month>07</month><year>2025</year></pub-date><volume>12</volume><issue>2</issue><fpage>182</fpage><lpage>187</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Lobinsky A.A., Kaneva M.V., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Lobinsky A.A., Kaneva M.V.</copyright-holder><copyright-holder xml:lang="en">Lobinsky A.A., Kaneva M.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://nanojournal.ifmo.ru/jour/article/view/357">https://nanojournal.ifmo.ru/jour/article/view/357</self-uri><abstract><p>This work first described the new oxidation-reduction route for the synthesis of Zn-doped MnO2 nanocrystals via layer-by-layer method as cathode material for an aqueous zinc-ion battery. The obtained nanolayers were characterized by SEM, XRD, XPS and FTIR spectroscopy. The results show the synthesized nanolayers were formed from two-dimensional nanocrystals Zn0.3MnO2 the thickness of about 3-8 nm and the morphology of “nanosheets” with the birnessite-like crystal structure. Benefiting from the aqueous 2M ZnSO4 electrolyte and Zn0.3MnO2 nanocrystals-based cathode, the zinc-ion battery delivers a high specific capacity (216 mAh/g at 1 A/g) and excellent cycling stability (95% capacity retention after 1000 charge-discharge cycles). The obtained results demonstrate the manganese oxide-based aqueous zinc-ion battery is a promising technology for powering next-generation electronics. </p></abstract><trans-abstract xml:lang="ru"><p>В этой работе впервые описан новый окислительно-восстановительный синтез нанокристаллов MnO2, легированных цинком, послойным методом в качестве катодного материала для водной цинк-ионной батареи. Полученные нанослои были охарактеризованы методами SEM, XRD, XPS и FTIR-спектроскопии. Результаты показывают, что синтезированные нанослои сформированы из двумерных нанокристаллов Zn0.3MnO2 толщиной около 3–8 нм и имеют морфологию «нанолистов» с бирнесситоподобной кристаллической структурой. Благодаря преимуществам водного электролита 2M ZnSO4 и катода на основе нанокристаллов Zn0.3MnO2, ионно-цинковый аккумулятор обладает высокой удельной емкостью (216 мАч/г при 1 А/г) и отличной циклической стабильностью (сохранение емкости 95 % после 1000 зарядок). циклы разрядки). Полученные результаты демонстрируют, что водная цинк-ионная батарея на основе оксида марганца является перспективной технологией для питания электроники следующего поколения.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Оксид марганца</kwd><kwd>цинк</kwd><kwd>нанокристаллы</kwd><kwd>послойное нанесение</kwd><kwd>электродные материалы</kwd><kwd>цинк-ионный аккумулятор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Manganese oxide</kwd><kwd>zinc</kwd><kwd>nanocrystals</kwd><kwd>layer-by-layer</kwd><kwd>electrode materials</kwd><kwd>zinc-ion battery</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">This research was financial supported by an RSF grant, project number 19-73-00304. The authors are grateful to the Centers for X-ray diffraction studies and Nanotechnology of Saint Petersburg State University.</funding-statement><funding-statement xml:lang="en">This research was financial supported by an RSF grant, project number 19-73-00304. The authors are grateful to the Centers for X-ray diffraction studies and Nanotechnology of Saint Petersburg State University</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Kaiyue Zhu, Tao Wu, Shichen Sun, Yeting Wen, Kevin Huang. Electrode Materials for Practical Rechargeable Aqueous Zn Ion Batteries. Challenges and Opportunities, ChemElectroChem, 2020, 7, P. 2714–2734.</mixed-citation><mixed-citation xml:lang="en">Kaiyue Zhu, Tao Wu, Shichen Sun, Yeting Wen, Kevin Huang. Electrode Materials for Practical Rechargeable Aqueous Zn Ion Batteries. Challenges and Opportunities, ChemElectroChem, 2020, 7, P. 2714–2734.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Jianping Yan, Edison Huixiang Ang, Yang Yang, Yufei Zhang, Minghui Ye, Wencheng Du, Cheng Chao Li. High Voltage Zinc Ion Batteries. Design Strategies and Challenges, Advanced Functional Materials, 2021, 335, P. 2010213.</mixed-citation><mixed-citation xml:lang="en">Jianping Yan, Edison Huixiang Ang, Yang Yang, Yufei Zhang, Minghui Ye, Wencheng Du, Cheng Chao Li. High Voltage Zinc Ion Batteries. Design Strategies and Challenges, Advanced Functional Materials, 2021, 335, P. 2010213.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Yanxia Yu, Jinhao Xie, Haozhe Zhang, Ruofei Qin, Xiaoqing Liu, Xihong Lu. High Voltage Rechargeable Aqueous Zinc Based Batteries. Latest Progress and Future Perspectives, Small Science, 2021, 355, P. 2000066.</mixed-citation><mixed-citation xml:lang="en">Yanxia Yu, Jinhao Xie, Haozhe Zhang, Ruofei Qin, Xiaoqing Liu, Xihong Lu. High Voltage Rechargeable Aqueous Zinc Based Batteries. Latest Progress and Future Perspectives, Small Science, 2021, 355, P. 2000066.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Niklas Borchers, Simon Clark, Birger Horstmann, Kaushik Jayasayee, Mari Juel, Philippe Stevens.Innovative zinc-based batteries. Journal of Power Sources, 2021, 484, P. 229309.</mixed-citation><mixed-citation xml:lang="en">Niklas Borchers, Simon Clark, Birger Horstmann, Kaushik Jayasayee, Mari Juel, Philippe Stevens.Innovative zinc-based batteries. Journal of Power Sources, 2021, 484, P. 229309.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Nengyan Ma, Peijun Wu, Yixue Wu, Donghao Jiang, Gangtie Lei. Progress and perspective of aqueous zinc-ion battery. Functional Materials Letters, 2019, 12(5), P. 1930003.</mixed-citation><mixed-citation xml:lang="en">Nengyan Ma, Peijun Wu, Yixue Wu, Donghao Jiang, Gangtie Lei. Progress and perspective of aqueous zinc-ion battery. Functional Materials Letters, 2019, 12(5), P. 1930003.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Dinesh Selvakumarana, Anqiang Pana, Shuquan Lianga, Guozhong Cao. A review on recent developments and challenges of cathode materials for rechargeable aqueous Zn-ion batteries. J. Mater. Chem. A, 2019, 7, P. 18209–18236.</mixed-citation><mixed-citation xml:lang="en">Dinesh Selvakumarana, Anqiang Pana, Shuquan Lianga, Guozhong Cao. A review on recent developments and challenges of cathode materials for rechargeable aqueous Zn-ion batteries. J. Mater. Chem. A, 2019, 7, P. 18209–18236.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Zixuan Fan, Wei He, Meng Ni, Peigeng Zhang, Wubian Tian, Wei Zhang, Long Pan, ZhengMing Sun. Recent Developments of Preintercalated Cathodes for Rechargeable Aqueous Zn-Ion Batteries. Energy Technol, 2021, 9, P. 2000829.</mixed-citation><mixed-citation xml:lang="en">Zixuan Fan, Wei He, Meng Ni, Peigeng Zhang, Wubian Tian, Wei Zhang, Long Pan, ZhengMing Sun. Recent Developments of Preintercalated Cathodes for Rechargeable Aqueous Zn-Ion Batteries. Energy Technol, 2021, 9, P. 2000829.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Wen Shi, Wee Siang Vincent Lee, Junmin Xue. Recent Development of Mn-based Oxides as Zinc-Ion Battery Cathode. ChemSusChem, 2021, 14, P. 1–26.</mixed-citation><mixed-citation xml:lang="en">Wen Shi, Wee Siang Vincent Lee, Junmin Xue. Recent Development of Mn-based Oxides as Zinc-Ion Battery Cathode. ChemSusChem, 2021, 14, P. 1–26.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Muhammad Rashad, Muhammad Asif, Yuxin Wang, Zhen He, Iftikhar Ahmed. Recent advances in electrolytes and cathode materials for magnesium and hybrid-ion batteries. Energy Storage Materials, 2020, 25, P. 342–375.</mixed-citation><mixed-citation xml:lang="en">Muhammad Rashad, Muhammad Asif, Yuxin Wang, Zhen He, Iftikhar Ahmed. Recent advances in electrolytes and cathode materials for magnesium and hybrid-ion batteries. Energy Storage Materials, 2020, 25, P. 342–375.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Na Liu, Bin Li, Zhangxing He, Lei Dai, Haiyan Wang, Ling Wang. Recent advances and perspectives on vanadium- and manganese-based cathode materials for aqueous zinc ion batteries. Journal of Energy Chemistry, 2021, 59, P. 134–159.</mixed-citation><mixed-citation xml:lang="en">Na Liu, Bin Li, Zhangxing He, Lei Dai, Haiyan Wang, Ling Wang. Recent advances and perspectives on vanadium- and manganese-based cathode materials for aqueous zinc ion batteries. Journal of Energy Chemistry, 2021, 59, P. 134–159.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Tong Xue, Hong Jin Fan, From aqueous Zn-ion battery to Zn-MnO2 flow battery: A brief story. Journal of Energy Chemistry, 2021, 54, P. 194–201.</mixed-citation><mixed-citation xml:lang="en">Tong Xue, Hong Jin Fan, From aqueous Zn-ion battery to Zn-MnO2 flow battery: A brief story. Journal of Energy Chemistry, 2021, 54, P. 194–201.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Boya Tang, Lutong Shan, Shuquan Liang, Jiang Zhou. Issues and opportunities facing aqueous zinc-ion batteries. Energy Environ. Sci., 2019, 12, P. 3288.</mixed-citation><mixed-citation xml:lang="en">Boya Tang, Lutong Shan, Shuquan Liang, Jiang Zhou. Issues and opportunities facing aqueous zinc-ion batteries. Energy Environ. Sci., 2019, 12, P. 3288.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Yingchang Yang, Xuejing Qiu, Wei Shi at all. Controllable fabrication of two-dimensional layered transition metal oxides through electrochemical exfoliation of non-van der Waals metals for rechargeable zinc-ion batteries. Chemical Engineering Journal, 2021, 15, P. 127247.</mixed-citation><mixed-citation xml:lang="en">Yingchang Yang, Xuejing Qiu, Wei Shi at all. Controllable fabrication of two-dimensional layered transition metal oxides through electrochemical exfoliation of non-van der Waals metals for rechargeable zinc-ion batteries. Chemical Engineering Journal, 2021, 15, P. 127247.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Huicong Xia, Qun Xu, Jianan Zhang. Recent Progress on Two-Dimensional Nanoflake Ensembles for Energy Storage Applications. Nanomicro Lett., 2018, 10.</mixed-citation><mixed-citation xml:lang="en">Huicong Xia, Qun Xu, Jianan Zhang. Recent Progress on Two-Dimensional Nanoflake Ensembles for Energy Storage Applications. Nanomicro Lett., 2018, 10.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Wang Xiao, Li Yaguang, Wang Sen, Zhou Feng, Das Pratteek, Sun Chenglin, Zheng Shuanghao, Wu Zhong Shuai. 2D Amorphous V2O5/Graphene Heterostructures for High Safety Aqueous Zn Ion Batteries with Unprecedented Capacity and Ultrahigh Rate Capability. Advanced energy materials, 2020, 10.</mixed-citation><mixed-citation xml:lang="en">Wang Xiao, Li Yaguang, Wang Sen, Zhou Feng, Das Pratteek, Sun Chenglin, Zheng Shuanghao, Wu Zhong Shuai. 2D Amorphous V2O5/Graphene Heterostructures for High Safety Aqueous Zn Ion Batteries with Unprecedented Capacity and Ultrahigh Rate Capability. Advanced energy materials, 2020, 10.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Shamsayei M., Yamini Y., Asiabi H. Layer-by-layer assembly of layered double hydroxide/histidine/δ-MnO2 nanosheets: Synthesis, characterization, and applications. Applied Clay Science, 2020, 188, P. 105540.</mixed-citation><mixed-citation xml:lang="en">Shamsayei M., Yamini Y., Asiabi H. Layer-by-layer assembly of layered double hydroxide/histidine/δ-MnO2 nanosheets: Synthesis, characterization, and applications. Applied Clay Science, 2020, 188, P. 105540.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Kodintsev I.A., Martinson K.D., Lobinsky A.A., Popkov V.I. SILD synthesis of the efficient and stable electrocatalyst based on CoO-NiO solid solution toward hydrogen production. Nanosystems: Physics, Chemistry, Mathematics, 2019, 10(6), P. 681–685.</mixed-citation><mixed-citation xml:lang="en">Kodintsev I.A., Martinson K.D., Lobinsky A.A., Popkov V.I. SILD synthesis of the efficient and stable electrocatalyst based on CoO-NiO solid solution toward hydrogen production. Nanosystems: Physics, Chemistry, Mathematics, 2019, 10(6), P. 681–685.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Mangesh A. Desai, Aditi Kulkarni, Girish Gund, Shrikrishna. D. Sartale, SILAR-grown K+ and Na+ions pre-inserted MnO2 nanostructures for supercapacitor applications: A comparative study. Energy Fuels, 2021, 35, P. 4577–4586.</mixed-citation><mixed-citation xml:lang="en">Mangesh A. Desai, Aditi Kulkarni, Girish Gund, Shrikrishna. D. Sartale, SILAR-grown K+ and Na+ions pre-inserted MnO2 nanostructures for supercapacitor applications: A comparative study. Energy Fuels, 2021, 35, P. 4577–4586.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Tolstoy V.P., Lobinsky A.A., Levin O.V., Kuklo L.I. Direct synthesis of Ni2Al(OH)7−x(NO3)x•nH2O layered double hydroxide nanolayers by SILD and their capacitive performance. Materials Letters, 2015, 139, P. 4–6.</mixed-citation><mixed-citation xml:lang="en">Tolstoy V.P., Lobinsky A.A., Levin O.V., Kuklo L.I. Direct synthesis of Ni2Al(OH)7−x(NO3)x•nH2O layered double hydroxide nanolayers by SILD and their capacitive performance. Materials Letters, 2015, 139, P. 4–6.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Tolstoy V.P., Lobinsky A.A. Synthesis of 2D Zn-Co LDH nanosheets by a successive ionic layer deposition method as a material for electrodes of high-performance alkaline battery-supercapacitor hybrid devices. RSC Advances, 2018, 8, P. 29607–29612.</mixed-citation><mixed-citation xml:lang="en">Tolstoy V.P., Lobinsky A.A. Synthesis of 2D Zn-Co LDH nanosheets by a successive ionic layer deposition method as a material for electrodes of high-performance alkaline battery-supercapacitor hybrid devices. RSC Advances, 2018, 8, P. 29607–29612.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Hongjun Yue, Xingkang Huang, Yong Yang. Preparation and electrochemical performance of manganese oxide/carbon nanotubes composite as a cathode for rechargeable lithium battery with high power density. Mater. Lett., 2008, 62, P. 3388–3390.</mixed-citation><mixed-citation xml:lang="en">Hongjun Yue, Xingkang Huang, Yong Yang. Preparation and electrochemical performance of manganese oxide/carbon nanotubes composite as a cathode for rechargeable lithium battery with high power density. Mater. Lett., 2008, 62, P. 3388–3390.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Kodintsev I.A., Martinson K.D., Lobinsky A.A., Popkov V.I. Successive ionic layer deposition of Co-doped Cu(OH)2 nanorods as electrode material for electrocatalytic reforming of ethanol. Nanosystems: Physics, Chemistry, Mathematics, 2019, 10(5), P. 573–578.</mixed-citation><mixed-citation xml:lang="en">Kodintsev I.A., Martinson K.D., Lobinsky A.A., Popkov V.I. Successive ionic layer deposition of Co-doped Cu(OH)2 nanorods as electrode material for electrocatalytic reforming of ethanol. Nanosystems: Physics, Chemistry, Mathematics, 2019, 10(5), P. 573–578.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Yu Xin Zhang, Xiao Long Guo, Ming Huang, Xiao-Dong Hao, Yuan Yuan, Chao Hua. Engineering birnessite-type MnO2 nanosheets on fiberglass for pH-dependent degradation of methylene blue. J. Phys. and Chem. of Sol., 2015, 83, P. 40–46.</mixed-citation><mixed-citation xml:lang="en">Yu Xin Zhang, Xiao Long Guo, Ming Huang, Xiao-Dong Hao, Yuan Yuan, Chao Hua. Engineering birnessite-type MnO2 nanosheets on fiberglass for pH-dependent degradation of methylene blue. J. Phys. and Chem. of Sol., 2015, 83, P. 40–46.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Shumin Sun, Shen Wang, Tongchi Xia, Xiaofeng Li, Qingxian Jin, Qiong Wu. Hydrothermal synthesis of a MnOOH/three-dimensional reduced graphene oxide composite and its electrochemical properties for supercapacitors. J. Mater. Chem. A., 2015, 3, P. 20944–20951.</mixed-citation><mixed-citation xml:lang="en">Shumin Sun, Shen Wang, Tongchi Xia, Xiaofeng Li, Qingxian Jin, Qiong Wu. Hydrothermal synthesis of a MnOOH/three-dimensional reduced graphene oxide composite and its electrochemical properties for supercapacitors. J. Mater. Chem. A., 2015, 3, P. 20944–20951.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Biesinger M.C., Payne B.P., Grosvenor A.P., Lau L.W.M., Gerson A.R., Smart R.St.C. Resolving surface chemical states in XPS analysis of first-row transition metals, oxides and hydroxides: Cr, Mn, Fe, Co and Ni. Appl. Surf. Sci., 2011, 257, P. 2717–2730.</mixed-citation><mixed-citation xml:lang="en">Biesinger M.C., Payne B.P., Grosvenor A.P., Lau L.W.M., Gerson A.R., Smart R.St.C. Resolving surface chemical states in XPS analysis of first-row transition metals, oxides and hydroxides: Cr, Mn, Fe, Co and Ni. Appl. Surf. Sci., 2011, 257, P. 2717–2730.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Lobinsky A.A., Tolstoy V.P. Synthesis of γ-MnOOH nanorods by successive ionic layer deposition method and their capacitive performance. Journal of Energy Chemistry, 2017, 26, P. 336–339.</mixed-citation><mixed-citation xml:lang="en">Lobinsky A.A., Tolstoy V.P. Synthesis of γ-MnOOH nanorods by successive ionic layer deposition method and their capacitive performance. Journal of Energy Chemistry, 2017, 26, P. 336–339.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
