Cobalt carbonate hydroxide mesostructure with high surface area for enhanced electrocatalytic oxygen evolution

Li, Jie; Li, Xiaoxin; Luo, Yunli; Cen, Qinchun; Ye, Qinglan; Xu, Xuetang; Wang, Fan

doi:10.1016/j.ijhydene.2018.03.229

Cited by 25 publications

(24 citation statements)

References 57 publications

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“…Alternatively, 2D rectangular nanoplates of NiCCH and 3D octahedral MnCCH particles could also facilitate electrolyte penetration for better contact with available active sites for the OER. Furthermore, the η 10 value obtained for NiCCH outperformed other recently reported Co-based OER electrcatalysts, such as CoCH superstructures (320 mV), 6 CoCH/ MWCNT (285 mV), 14 mesoporous CoCH (320 mV), 11 Mn 1 Co 1 CH nanosheets/NF (322 @ η 50 ), 15 Ni promoted mesoporous Co 3 O 4 (381 mV), 39 and Cu−Co(OH) 2 (300 mV). 40 Tafel analysis was performed to gain insights into the OER kinetics of RuO 2 , CCH, NiCCH, and MnCCH and the findings are shown in Figure 5c.…”

Section: ■ Results and Discussionmentioning

confidence: 54%

“…In this context, cobalt (Co)-based materials, such as oxides, phosphides, chalcogenides, nitrides, hydroxides, and layered double hydroxides, have been explored as potential alternatives to the commercial OER electrocatalysts owing to their comparatively low cost, high electrocatalytic activity, and good corrosion stability. 3,11 Transition metal carbonate hydroxides (TMCHs) constitute a structurally and chemically well-defined family of compounds. They crystallize in layered materials comprising positively charged cationic layers and interlayer anions.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In another study, CCH grown on multiwalled carbon nanotubes (MWCNT) 14 and carbon cloth (CC) 5 demonstrated low OER overpotentials of about 285 and 323 mV in 1.0 M KOH electrolyte, respectively. Li et al 11 reported η 10 (320 mV) for the OER in an alkaline medium for mesoporous CCH. However, efforts are still being focused to improve the electrocatalytic activity of the electrode materials by exposing them to electrolytes through controlled morphology.…”

Section: ■ Introductionmentioning

confidence: 99%

“…However, these electrocatalysts are unsuitable for large-scale practical applications due to low abundance, very high cost, and inferior durability under strong alkaline conditions. , Therefore, the development of cost-effective, high-performing, and durable electrocatalysts for the OER has been receiving a considerable amount of attention. In this context, cobalt (Co)-based materials, such as oxides, phosphides, chalcogenides, nitrides, hydroxides, and layered double hydroxides, have been explored as potential alternatives to the commercial OER electrocatalysts owing to their comparatively low cost, high electrocatalytic activity, and good corrosion stability. , …”

Section: Introductionmentioning

confidence: 99%

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Transition-Metal-Substituted Cobalt Carbonate Hydroxide Nanostructures as Electrocatalysts in Alkaline Oxygen Evolution Reaction

Karmakar

Srivastava

2020

ACS Appl. Energy Mater.

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Tuning of morphology and the electronic structure through substitution in the crystal lattice can enhance the performance of electrocatalysts. In view of this, the present work is focused on one-step hydrothermal fabrication of graphite paper (GP)supported cobalt carbonate hydroxide (Co 2 (CO 3 )(OH) 2 /GP) nanostructures and its nickel-and manganese-substituted products, Co 1.9 Ni 0.1 (CO 3 )(OH) 2 /GP and Co 0.95 Mn 0.05 CO 3 /GP, respectively. This is followed by the investigation of their crystal structure, morphology, and electrocatalytic oxygen evolution activity. Our findings showed modification of the electronic structure in substituted cobalt carbonate hydroxides. In addition, specific and electrochemically active surface areas were also enhanced in Co 1.9 Ni 0.1 (CO 3 )(OH) 2 /GP and Co 0.95 Mn 0.05 CO 3 /GP compared to pure Co 2 (CO 3 )(OH) 2 /GP. It was noted that Ni-and Mn-substituted Co 2 (CO 3 )(OH) 2 exhibited dramatically enhanced oxygen evolution reaction (OER) performance in 1.0 M KOH. In addition, the mechanism of the OER was explored experimentally to reveal the origin of their enhanced electrocatalytic activity. Our findings also established the relatively superior performance of Co 1.9 Ni 0.1 (CO 3 )(OH) 2 /GP and Co 0.95 Mn 0.05 CO 3 /GP compared to the commercial RuO 2 electrocatalyst for oxygen evolution in alkaline media. It was also inferred that Co 1.9 Ni 0.1 (CO 3 )(OH) 2 /GP exhibited the best performance as indicated by the lowest overpotential (∼ 266 mV) in achieving 10 mA cm −2 current density, a small Tafel slope (∼ 44.8 mV dec −1 ), quite low chargetransfer resistance (∼ 0.72 Ω), and excellent durability. Thus, Ni-substituted Co 2 (CO 3 )(OH) 2 nanostructures could be employed as promising, efficient, and durable electrocatalysts for the OER in alkaline media.

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Section: ■ Results and Discussionmentioning

confidence: 54%

Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Transition-Metal-Substituted Cobalt Carbonate Hydroxide Nanostructures as Electrocatalysts in Alkaline Oxygen Evolution Reaction

Karmakar

Srivastava

2020

ACS Appl. Energy Mater.

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“…X-ray photoelectron spectroscopy (XPS) analysis was performed to gain insight into the electronic states of the elements in the samples. The C 1s spectrum of CoCO 3 /NCNT-1 (Figure e) shows a characteristic peak of C 1s at 284.8 eV assigned to C-C in NCNTs, and two peaks at 286.4 and 288.9 eV can be ascribed to C–N and O–CO, respectively, originating from the C atoms connected to the doped N in NCNT and from CoCO 3 . − In the N 1s spectrum (Figure S2a) of CoCO 3 /NCNT-1, three characteristic peaks can be observed at 399.5, 400.5, and 404.3 eV, corresponding to pyridinic, pyrrolic, and oxidized nitrogen, respectively. − The O 1s spectrum (Figure S2b) reveals a peak at 532.1 eV assigned to the oxygen of cobalt carbonate, giving information on the formation of cobalt carbonate . In the Co 2p XPS spectra (Figure f) of pure CoCO 3 and CoCO 3 /NCNT-1, the binding energies (BEs) of Co 2p 3/2 and Co 2p 1/2 were centered at 781.6 and 797.4 eV for pure CoCO 3 and 781.3 and 797.2 eV for CoCO 3 /NCNT-1, respectively.…”

Section: Resultsmentioning

confidence: 99%

Cobalt Carbonate-Coated Nitrogen-Doped Carbon Nanotubes with a Sea-Cucumber Morphology for Electrocatalytic Water Splitting

Wang

Zhang

et al. 2021

Langmuir

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Herein, we report CoCO 3 -coated nitrogen-doped carbon nanotubes (NCNTs) with a sea cucumber-like morphology for water splitting. The sample with a CoCO 3 content of 26.8 wt % (CoCO 3 /NCNT-1) exhibits excellent performance for the hydrogen evolution reaction in 1.0 M KOH electrolyte with an overpotential of 58 mV to reach 10 mA cm −2 , better than the most nonnoble metal catalysts reported; meanwhile, it exhibits superior electrocatalytic activity for the oxygen evolution reaction. The excellent performance of the catalyst is attributed to the nanotip effect caused by the sea-cucumber-like morphology. Notably, CoCO 3 /NCNT-1 can attain turnover frequencies of 2.7 s −1 at an overpotential of 50 mV, higher than that of Pt/C (1.5 s −1 ). A cell constructed using CoCO 3 /NCNT-1 as the catalyst of the electrode pair needs a low cell voltage of 1.54 V at 10 mA cm −2 , superior to most reported cells. In addition, CoCO 3 /NCNT-1 can maintain 10 mA cm −2 for overall water splitting for 100 h without activity loss.

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Mixed Transition Metal Carbonate Hydroxide‐Based Nanostructured Electrocatalysts for Alkaline Oxygen Evolution: Status and Perspectives

Karmakar

Chavan

Jeong

et al. 2022

Adv Energy and Sustain Res

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To date, conventional fossil fuels have been considered the main energy source for modern civilization. [1] The nonrenewable nature and continuous depletion of fossil fuels and the increasing CO 2 emission levels necessitate the development of cost-effective renewable energy conversion/storage systems. [2][3][4][5] In this context, hydrogen, as a fuel, is considered an important alternative to many conventional energy resources owing to its several advantages, such as facile energy storage/carrier, high energy density, and zero-emission upon combustion. [6][7][8] Hydrogen has applications in heat generation, [9] refining processes in industry, [10] and provides electricity in stationary and transport/ vehicle. [11] Hydrogen can be manufactured using a variety of methods, such as hightemperature steam reforming, water electrolysis, solar water splitting-thermolysis, and biomass conversion. [12] Among these methods, steam reforming is the preferred method; it fulfills %96% of global hydrogen demand. [13,14] However, this process requires high temperatures (700-1100 °C) and fossil fuels/natural hydrocarbons, and it is accompanied by greenhouse gas (CO 2 ) emissions. [15][16][17] Among various hydrogen production technologies, water electrolysis can be considered a major contributor to the production of ultrapure hydrogen (>99.9%); moreover, water electrolysis is environmentally benign. In addition, the electrolysis of water in alkaline media is a highly cost-effective, sustainable, and industrially viable method for hydrogen production. [18] However, efficient hydrogen production through water electrolysis is limited by the high overpotential and sluggish kinetics of the anodic oxygen evolution reaction (OER) and the cathodic hydrogen evolution reaction (HER). [11] The OER involves four-electron transfer pathways under acidic and alkaline conditions. Further, OER is associated with many other energy conversion and storage processes/devices, such as solar fuel production [2] and metal-air batteries. [19] The OER is a four-electron transfer process and has a relatively higher overpotential than the HER and a complex reaction mechanism; hence, OER can be considered the rate-determining step (RDS) for hydrogen production through water electrolysis. [20] Furthermore, the OER has unusually low rate constants and high

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Cobalt carbonate hydroxide mesostructure with high surface area for enhanced electrocatalytic oxygen evolution

Cited by 25 publications

References 57 publications

Transition-Metal-Substituted Cobalt Carbonate Hydroxide Nanostructures as Electrocatalysts in Alkaline Oxygen Evolution Reaction

Transition-Metal-Substituted Cobalt Carbonate Hydroxide Nanostructures as Electrocatalysts in Alkaline Oxygen Evolution Reaction

Cobalt Carbonate-Coated Nitrogen-Doped Carbon Nanotubes with a Sea-Cucumber Morphology for Electrocatalytic Water Splitting

Mixed Transition Metal Carbonate Hydroxide‐Based Nanostructured Electrocatalysts for Alkaline Oxygen Evolution: Status and Perspectives

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