Defects-engineered tailoring of tri-doped interlinked metal-free bifunctional catalyst with lower gibbs free energy of OER/HER intermediates for overall water splitting

Yasin，G.1,2; Ibraheem，S.1,2; Ali，S.3; Arif，M.4; Ibrahim，S.5; Iqbal，R.1,2; Kumar，A.6; Tabish，M.7; Mushtaq，M. A.1; Saad，A.1,2; Xu，H.3; Zhao，W.1

2022-03-01

10.1016/j.mtchem.2021.100634

Materials Today Chemistry   影响因子和分区

2468-5194

2468-5194

Controllable tailoring of metal-free/carbon-based nanostructures tends an encouraging way to enhance the bifunctional activity of electrodes, but a great challenge owing to the sluggish kinetics of oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Herein, a facile tempted-defects assisted fractionation strategy is presented to synthesize N, S, and O tri-doped metal-free catalyst (DE-TDAP). Due to this effective tempted-defects and heteroatoms interlinking in DE-TDAP, it delivers the lowest overpotential toward both the OER (346 mV) and HER (154 mV) at 10 mA cm. Remarkably, the DE-TDAP-electrode carries only a cell voltage of 1.81 V at 10 mA cm for overall water splitting and long-term stability. Considerably, the density functional theory (DFT) calculation exposes that the tailored-defects in tri-doped interlinking could enhance bifunctional catalytic performance devising from lower Gibbs free energy of OER/HER intermediates on active sites. This struggle henceforth provides a perceptive understanding of the synergetic principles of heteroatom-interlinking-tailoring nanostructures in water splitting.

Defect-engineering DFT Heteroatom-interlinking-tailoring Metal-free catalyst Overall water splitting

SCI ; EI

英语

其他

Natural Science Foun-dation of China[21972096] ; Shenzhen Science and Tech-nology Program[JCYJ20190808150615285]

Chemistry ; Materials Science

Chemistry, Multidisciplinary ; Materials Science, Multidisciplinary

WOS:000719667100004

ELSEVIER SCI LTD

20214611179487

Catalysts ; Defect engineering ; Design for testability ; Electrodes ; Free energy ; Gibbs free energy ; Metals ; Nanostructures ; Reaction kinetics

Metallurgy and Metallography:531 ; Thermodynamics:641.1 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Probability Theory:922.1 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4 ; Solid State Physics:933 ; Crystalline Solids:933.1 ; Materials Science:951

2-s2.0-85119056739

Scopus

1.Institute for Advanced Study,Shenzhen University,Shenzhen,518060,China
2.College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen,518060,China
3.Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China
4.Institute of Advanced Synthesis,Northwestern Polytechnical University,Xi'an,710072,China
5.College of Life Science and Technology,Beijing University of Chemical Technology,Beijing,100029,China
6.Nano-Technology Research Laboratory,Department of Chemistry,GLA University,Mathura,281406,India
7.State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology,Beijing,100029,China

Yasin，G.,Ibraheem，S.,Ali，S.,et al. Defects-engineered tailoring of tri-doped interlinked metal-free bifunctional catalyst with lower gibbs free energy of OER/HER intermediates for overall water splitting[J]. Materials Today Chemistry,2022,23.

Yasin，G..,Ibraheem，S..,Ali，S..,Arif，M..,Ibrahim，S..,...&Zhao，W..(2022).Defects-engineered tailoring of tri-doped interlinked metal-free bifunctional catalyst with lower gibbs free energy of OER/HER intermediates for overall water splitting.Materials Today Chemistry,23.

Yasin，G.,et al."Defects-engineered tailoring of tri-doped interlinked metal-free bifunctional catalyst with lower gibbs free energy of OER/HER intermediates for overall water splitting".Materials Today Chemistry 23(2022).