NiOOH@Cobalt copper carbonate hydroxide nanorods as bifunctional electrocatalysts for highly efficient water and hydrazine oxidation

Li, Bin; Wang, Kefeng; Ren, Jingxiao; Qu, Peng

doi:10.1039/d2nj00518b

Cited by 10 publications

(13 citation statements)

References 61 publications

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“…Another recent report presented the electrodeposition of NiOOH atop Ni‐foam‐supported CoCu carbonate hydroxide (CoCuCH) nanorods. [ 98 ] A standard three‐electrode configuration was used, where CoCuCH/NF, Ag/AgCl (saturated KCl), and a platinum plate served as the working, reference, and auxiliary electrodes, respectively. The electrodeposition was conducted in a 0.1 m aqueous solution of Ni(NO 3 ) 2 at −0.958 V for 7 min, and NiOOH@CoCuCH/NF was fabricated.…”

Section: General Synthetic Methods For Preparation Of Mtmch Electroca...mentioning

confidence: 99%

“…There are various modulation strategies for improving the OER kinetics and decreasing the overpotential of MTMCHs for alkaline OER. [ 55–57,68,72–99 ] Table 1 summarizes the different approaches undertaken to achieve excellent OER performance with the good long‐term stability of MTMCHs.…”

Section: Mtmch Electrocatalysts In Oxygen Evolution Reactionmentioning

confidence: 99%

“…Another recent report presented the efficient alkaline OER activity of a hybrid obtained by electrodepositing NiOOH on Ni‐foam‐supported CuCo carbonate hydroxide nanorods (NiOOH@CoCuCH@NF), as shown in Figure 10i,j. [ 98 ] This hybrid exhibited a lower OER overpotential ( η 10 ≈ 263 mV) than its individual components in 1.0 m KOH. The enhanced OER performance of NiOOH@CoCuCH@NF could be attributed to the availability of numerous active sites, firm NiOOH–CuCoCH interface enabled rapid charge transfer, and quick release of gas bubbles facilitating the mass transport.…”

Section: Mtmch Electrocatalysts In Oxygen Evolution Reactionmentioning

confidence: 99%

“…[131] Reports on MTMCHs infer that electrodeposition has mostly been used for modifying the surface of presynthesized metal carbonate hydroxides. [93,97,98] For example, Cai et al [93] electrodeposited a CeO 2 layer on hydrothermally prepared carbon fiber paper (CFP)-supported nickel-iron carbonate hydroxide hydrate (NiFeCH). An aqueous solution of Ce(NO 3 ) 3 and NaCl was employed as the electrolyte, and the deposition was performed at 0.30 mA cm À2 for a desired duration to control the amount of Ce loading.…”

Section: Electrodepositionmentioning

confidence: 99%

“…Figure displays a pie chart of the available reports on the electrocatalytic alkaline OER activities of transition metal carbonate hydroxides to date. [ 55–57,59,60,67–99 ] The present review commences with a general discussion of the electrochemical pathways and mechanism of OER in alkaline media. Subsequently, all the activity‐determining parameters in the OER and comprehensive studies on first‐row transition‐metal‐based multimetallic MTMCHs as OER electrocatalysts are discussed.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: General Synthetic Methods For Preparation Of Mtmch Electroca...mentioning

confidence: 99%

Section: Mtmch Electrocatalysts In Oxygen Evolution Reactionmentioning

confidence: 99%

Section: Mtmch Electrocatalysts In Oxygen Evolution Reactionmentioning

confidence: 99%