Synthesis of yolk-shell Co3O4/Co1-xRuxO2 microspheres featuring an enhanced electrocatalytic oxygen evolution activity in acidic medium

被引：9

作者：

Annamalai, Abinaya ^{[1
,4
]}

Shinde, Dipak V. ^{[1
]}

Buha, Joka ^{[1
]}

Marras, Sergio ^{[2
]}

Prato, Mirko ^{[2
]}

Lauciello, Simone ^{[3
]}

De Trizio, Luca ^{[1
]}

Manna, Liberato ^{[1
]}

机构：

[1] Ist Italiano Tecnol, Nanochem Dept, Via Morego 30, I-16163 Genoa, Italy

[2] Ist Italiano Tecnol, Mat Characterizat Facil, Via Morego 30, I-16163 Genoa, Italy

[3] Ist Italiano Tecnol, Electron Microscopy Facil, Via Morego 30, I-16163 Genoa, Italy

[4] Univ Genoa, Dipartimento Chim & Chim Ind, Via Dodecaneso 31, Genoa, Italy

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2021年 / 9卷 / 16期

基金：

欧洲研究理事会; 欧盟地平线“2020”;

关键词：

Oxygen;

D O I：

10.1039/d1ta00325a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hollow structures made of nanoscale building blocks are of great interest as catalysts for electrochemical water splitting. Here we report a solution-phase synthesis of yolk-shell Co3O4/Co1-xRuxO2 microspheres (MSs) having a shell made of Co1-xRuxO2 nanorods and the core of Co3O4. Benefiting from the peculiar morphology and the synergy between the different materials present in the MSs, the latter exhibit enhanced electrochemical oxygen evolution activity and long-term stability in acidic media. The catalyst achieves a catalytic current density of 10 mA cm(-2) at an overpotential of only 240 mV, a small Tafel slope of 70 mV dec(-1), and a high mass activity of 600 A g(-1) and maintains its activity throughout a 24 h chronopotentiometry tests at constant current densities of 10 and 20 mA cm(-2).

引用

页码：10385 / 10392

页数：8

共 63 条

[1] Recent Trends and Perspectives in Electrochemical Water Splitting with an Emphasis on Sulfide, Selenide, and Phosphide Catalysts of Fe, Co, and Ni: A Review [J].

Anantharaj, Sengeni ;

Ede, Sivasankara Rao ;

Sakthikumar, Kuppan ;

Karthick, Kannimuthu ;

Mishra, Soumyaranjan ;

Kundu, Subrata .

ACS CATALYSIS, 2016, 6 (12) :8069-8097

[2] Research Advances Towards Low Cost, High Efficiency PEM Electrolysis [J].

Ayers, K. E. ;

Anderson, E. B. ;

Capuano, C. B. ;

Carter, B. D. ;

Dalton, L. T. ;

Hanlon, G. ;

Manco, J. ;

Niedzwiecki, M. .

POLYMER ELECTROLYTE FUEL CELLS 10, PTS 1 AND 2, 2010, 33 (01) :3-15

[3] Resolving surface chemical states in XPS analysis of first row transition metals, oxides and hydroxides: Cr, Mn, Fe, Co and Ni [J].

Biesinger, Mark C. ;

Payne, Brad P. ;

Grosvenor, Andrew P. ;

Lau, Leo W. M. ;

Gerson, Andrea R. ;

Smart, Roger St. C. .

APPLIED SURFACE SCIENCE, 2011, 257 (07) :2717-2730

[4] Generalized preparation of Au NP @ Ni(OH)2 yolk-shell NPs and their enhanced catalytic activity [J].

Cai, Ren ;

Jin, Haiyan ;

Yang, Dan ;

Lin, Keng-Te ;

Chan, Kitying ;

Sun, Jianke ;

Chen, Zhuo ;

Zhang, Xiaobing ;

Tan, Weihong .

NANO ENERGY, 2020, 71

[5] A comprehensive review on PEM water electrolysis [J].

Carmo, Marcelo ;

Fritz, David L. ;

Merge, Juergen ;

Stolten, Detlef .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (12) :4901-4934

[6] Intrinsically stable in situ generated electrocatalyst for long-term oxidation of acidic water at up to 80 °C [J].

Chatti, Manjunath ;

Gardiner, James L. ;

Fournier, Maxime ;

Johannessen, Bernt ;

Williams, Tim ;

Gengenbach, Thomas R. ;

Pai, Narendra ;

Cuong Nguyen ;

MacFarlane, Douglas R. ;

Hocking, Rosalie K. ;

Simonov, Alexandr N. .

NATURE CATALYSIS, 2019, 2 (05) :457-465

[7] Mn-Doped RuO2 Nanocrystals as Highly Active Electrocatalysts for Enhanced Oxygen Evolution in Acidic Media [J].

Chen, Shi ;

Huang, Hao ;

Jiang, Peng ;

Yang, Kang ;

Diao, Jiefeng ;

Gong, Shipeng ;

Liu, Shuai ;

Huang, Minxue ;

Wang, Hui ;

Chen, Qianwang .

ACS CATALYSIS, 2020, 10 (02) :1152-+

[8] Oxygen and hydrogen evolution reactions on Ru, RuO2, Ir, and IrO2 thin film electrodes in acidic and alkaline electrolytes: A comparative study on activity and stability [J].

Cherevko, Serhiy ;

Geiger, Simon ;

Kasian, Olga ;

Kulyk, Nadiia ;

Grote, Jan-Philipp ;

Savan, Alan ;

Shrestha, Buddha Ratna ;

Merzlikin, Sergiy ;

Breitbach, Benjamin ;

Ludwig, Alfred ;

Mayrhofer, Karl J. J. .

CATALYSIS TODAY, 2016, 262 :170-180

[9] Oxygen evolution at RuO2(x) plus Co3O4(1-x) electrodes from acid solution [J].

Da Silva, LM ;

Boodts, JFC ;

De Faria, LA .

ELECTROCHIMICA ACTA, 2001, 46 (09) :1369-1375

[10] Challenges In Going from Laboratory to Megawatt Scale PEM Electrolysis [J].

Danilovic, N. ;

Ayers, K. ;

Capuano, C. ;

Renner, J. ;

Wiles, L. ;

Pertoso, M. .

POLYMER ELECTROLYTE FUEL CELLS 16 (PEFC 16), 2016, 75 (14) :395-402

← 1 2 3 4 5 6 7 →