Corrigendum to “A modulated electronic state strategy designed to integrate active HER and OER components as hydrid heterostructures for efficient overall water splitting” [Appl. Catal. B: Environ. 260 (2020) (1-13) 118197]

Liu, Yali; Luo, Xiaohu; Zhou, Chengliang; Du, Shuo; Zhen, Deshuai; Chen, Bin; Li, Ji; Wu, Qian; Iru, Yorhyikazcu; Chen, Dongchu

doi:10.1016/j.apcatb.2019.118351

Cited by 25 publications

(25 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The adsorbed H 2 O molecules were dissociated into OH − ions and adsorbed H atoms (H*) by gaining electrons from the catalyst's surface [57] . Remarkably, the Co 3+ ions were produced by the surface oxidation of the catalyst in strong alkaline surroundings created abundant empty d‐orbitals to facilitate the adsorption of H atoms, which speeded up the dissociation of H 2 O into H* (the Volmer step) in HER process [58,59] . The adsorbed H atoms further reacted with H 2 O molecules by obtaining electrons from the catalyst and formed H 2 molecules and released.…”

Section: Resultsmentioning

confidence: 99%

Co(OH)₂ Nanosheets Array Doped by Cu²⁺ Ions with Optimal Electronic Structure for Urea‐Assisted Electrolytic Hydrogen Generation

Wang

Zhang

et al. 2021

ChemElectroChem

View full text Add to dashboard Cite

Urea electrolysis supplies a great potential in energy-saving hydrogen generation accompanied by simultaneous ureacontaining wastewater remediation. Herein, the Co(OH) 2 nanosheets arrays doped by different amount of Cu 2 + ions were prepared via a one-step solution-phase method for ureaassisted electrolytic hydrogen generation. The Cu integration can regulate electronic structure, activate Co active sites at low potential, and optimize the charge transfer properties and adsorption states of the catalyst. Moreover, the partially distorted cobalt surroundings caused by Cu dopant in the catalyst is conductive to favor the adsorption of urea and water molecules to the active sites. The optimal Cu 6.2% -Co(OH) 2 nanosheets array exhibited superior urea oxidation reaction (UOR) and hydrogen evolution reaction (HER) performances. Assembling an overall urea electrolyzer using two Cu 6.2% -Co(OH) 2 electrodes gave rise to very small voltages of 1.389 V for 10 mA cm À 2 and 1.781 V for a high current density of 500 mA cm À 2 with remarkable operational stability. The Cu 2 + ions doping strategy can be extended to a series of Ni-based compounds with adjustable electronic structures for boosting the activities of UOR and HER.

show abstract

Section: Resultsmentioning

confidence: 99%

Co(OH)₂ Nanosheets Array Doped by Cu²⁺ Ions with Optimal Electronic Structure for Urea‐Assisted Electrolytic Hydrogen Generation

Wang

Zhang

et al. 2021

ChemElectroChem

View full text Add to dashboard Cite

show abstract

“…Under the XPS spectrum of N 1s (Figure 5b), the three key peaks at 400.9, 399.8, and 398.9 eV can be attributable to graphitic N, pyrrolic N, and pyridinic N, respectively. [28,29] The peak at 399.2 eV ought to be CoÀ N. [30][31][32] With strong interaction, the CoÀ N bond creates a better electronic environment, which is beneficial for regulating adsorption and protonation/deprotonation. [33] Comparing all samples, we found that the addition of Cu introduces CoÀ N bonds.…”

Section: Nature Role and Necessity Of Ncocu-5 Cds For Enhancing Her Activitymentioning

confidence: 99%

NCoCu Carbon Dots Intertwined NiCo Double Hydroxide Nanorod Array for Efficient Electrocatalytic Hydrogen Evolution

et al. 2021

View full text Add to dashboard Cite

Electrocatalytic production of hydrogen from water is a faster and environmentally friendly way of producing bulk hydrogen with the highest purity. Herein, a highly efficient mesh-like cobalt hydroxide self-supporting catalyst coupled with NCoCu-5 carbon dots (CDs) on Ni foam (NF) is reported by a common hydrothermal way. The type of carbon dots on NiCo double hydroxide has a great effect on the morphology of the catalyst (NCoCu-5 CDs/NFÀ CoNi). The intertwined mesh-like NCoCu-5 CDs/NFÀ CoNi catalyst has an excellent HER performance, exhibiting a low overpotential of 65 mV at 10 mA cm À 2 . After coupling with NCoCu-5 CDs, a new CoÀ N electronic transfer channel is created in composite, and a suitable electronic environment is produced between Co and NCoCu-5 CDs.Copper cations react with NF to generate Cu + intermediate ions, thus further promoting the formation of Co 3 + . It supplies a high-speed charge channel for the transmission of ions and increases the active sites.

show abstract

“…Interface engineering is an effective approach to prompting electron transfer by constructing abundant interfaces within the catalysts. [33][34][35] This strategy has been proven to be effective in many electrochemical reactions, such as HER, [36] oxygen evolution reaction, [37,38] and nitrogen reduction reaction. [39] The introduced interfaces between the two materials with different work functions and Fermi levels would benefit the electronic interaction at the interface and assist the electron redistribution.…”

Section: Introductionmentioning

confidence: 99%

Interface‐Induced Electrocatalytic Enhancement of CO₂‐to‐Formate Conversion on Heterostructured Bismuth‐Based Catalysts

Sui

Zhu

et al. 2021

Small

View full text Add to dashboard Cite

greenhouse gas effect and to simultaneously convert CO 2 to value-added industrial products. [1][2][3][4][5] However, the inertness of CO 2 molecule, the sluggish multi-electron transfer kinetics, and the competitive hydrogen evolution reaction (HER) during CO 2 RR result in the high overpotential (η) to various degrees, which jeopardizes CO 2 RR performance. [6,7] Therefore, it is highly desirable to develop the electrocatalysts that are capable of compromising the above impediments and simultaneously achieving the optimal CO 2 RR performance through specific optimization process.Formic acid (HCOOH) or formate, as an important liquid product from CO 2 RR, has been widely employed as chemical intermediates in various industrial processes. [8] The common industrial manufacture of HCOOH involves the carbonylation of methanol prior to the hydrolyzing of methyl formate. This process is performed in the liquid phase at elevated pressure, which is an energy-intensive and high-cost process. [9] In contrast, CO 2 RR to HCOOH requires a quite mild reduction condition. Currently, some metal-based materials (e.g., Sn, [10][11][12] Pb, [13][14][15] In, [16,17] and Cd [18,19] ) have been studied for HCOOH formation during CO 2 RR because of their suitable binding energy for the intermediate HCOO*. [20,21] However, the high cost and toxicity of these heavy metals (e.g., Pb, Cd, In, etc.) preclude their scalability. Remarkably, Bi-based materials have attracted much attention owing to their low toxicity, earth-abundance, and good selectivity toward formate formation. Various features of Bi-based materials, such as size, morphology, and electrocatalysts with conductive support, have been widely investigated to achieve enhanced electrocatalytic activity and selectivity. [22][23][24] Nevertheless, their low current density (j) and high overpotential are still the bottlenecks that restrict their practical applications at industrial level. [25,26] Therefore, it is of great importance to fabricate the highly effective and stable Bi-based electrocatalysts, to explore the associated reaction mechanism in order to achieve an improved selectivity toward formate.The complicated multi-electron transfer steps during CO 2 RR suggest the importance of charge transfer ability of electrocatalyst. [27,28] Various studies on Bi-based electrocatalysts, including the construction of Bi 2 O 3 nanosheets (NSs) on multi-channel carbon matrix support, [29] the fabrication of Bi 2 O 3 @C derived Electrochemical CO 2 reduction reaction (CO 2 RR) is a promising approach to convert CO 2 to carbon-neutral fuels using external electric powers. Here, the Bi 2 S 3 -Bi 2 O 3 nanosheets possessing substantial interface being exposed between the connection of Bi 2 S 3 and Bi 2 O 3 are prepared and subsequently demonstrate to improve CO 2 RR performance. The electrocatalyst shows formate Faradaic efficiency (FE) of over 90% in a wide potential window. A high partial current density of about 200 mA cm −2 at −1.1 V and an ultralow onset potential with formate FE of ...

show abstract

Corrigendum to “A modulated electronic state strategy designed to integrate active HER and OER components as hydrid heterostructures for efficient overall water splitting” [Appl. Catal. B: Environ. 260 (2020) (1-13) 118197]

Cited by 25 publications

References 0 publications

Co(OH)₂ Nanosheets Array Doped by Cu²⁺ Ions with Optimal Electronic Structure for Urea‐Assisted Electrolytic Hydrogen Generation

Co(OH)₂ Nanosheets Array Doped by Cu²⁺ Ions with Optimal Electronic Structure for Urea‐Assisted Electrolytic Hydrogen Generation

NCoCu Carbon Dots Intertwined NiCo Double Hydroxide Nanorod Array for Efficient Electrocatalytic Hydrogen Evolution

Interface‐Induced Electrocatalytic Enhancement of CO₂‐to‐Formate Conversion on Heterostructured Bismuth‐Based Catalysts

Contact Info

Product

Resources

About

Corrigendum to “A modulated electronic state strategy designed to integrate active HER and OER components as hydrid heterostructures for efficient overall water splitting” [Appl. Catal. B: Environ. 260 (2020) (1-13) 118197]

Cited by 25 publications

References 0 publications

Co(OH)2 Nanosheets Array Doped by Cu2+ Ions with Optimal Electronic Structure for Urea‐Assisted Electrolytic Hydrogen Generation

Co(OH)2 Nanosheets Array Doped by Cu2+ Ions with Optimal Electronic Structure for Urea‐Assisted Electrolytic Hydrogen Generation

NCoCu Carbon Dots Intertwined NiCo Double Hydroxide Nanorod Array for Efficient Electrocatalytic Hydrogen Evolution

Interface‐Induced Electrocatalytic Enhancement of CO2‐to‐Formate Conversion on Heterostructured Bismuth‐Based Catalysts

Contact Info

Product

Resources

About

Co(OH)₂ Nanosheets Array Doped by Cu²⁺ Ions with Optimal Electronic Structure for Urea‐Assisted Electrolytic Hydrogen Generation

Co(OH)₂ Nanosheets Array Doped by Cu²⁺ Ions with Optimal Electronic Structure for Urea‐Assisted Electrolytic Hydrogen Generation

Interface‐Induced Electrocatalytic Enhancement of CO₂‐to‐Formate Conversion on Heterostructured Bismuth‐Based Catalysts