Constructing multifunctional ‘Nanoplatelet-on-Nanoarray’ electrocatalyst with unprecedented activity towards novel selective organic oxidation reactions to boost hydrogen production

Deng, Xiaohui; Li, Mei; Fan, Yun; Wang, Lei; Fu, Xian‐Zhu; Luo, Jing‐Li

doi:10.1016/j.apcatb.2020.119339

Cited by 105 publications

(63 citation statements)

References 87 publications

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“…Valuable chemicals can be obtained from the electro-oxidation of various alcohols, accompanied by H 2 generation at the counter electrode. For example, formate/ formic acid from methanol [48][49][50][51][52] or glycerol, [53,54] acetate [55][56][57][58][59] or ethyl acetate [60] from ethanol, acetone [36] from isopropanol, lactate or pyruvate [11] from 1,2-propanediol, acrylate [61] from 1,3-propandiol, tartronate or mesoxalate [62] from glycerol, etc.…”

Section: Her and Alcohol Oxidation Reactionmentioning

confidence: 99%

“…For example, bimetallic t-NiCo-MOF and MoNi 4 served as anodic and cathodic electrocatalysts in an unsymmetrical two-electrode system, which exhibited dramatically higher selectivity toward formate and H 2 co-generation. [49] The bifunctional electrocatalysts involving nickel-cobalt hydroxides (Ni x Co 1-x (OH) 2 , [51] Co(OH) 2 @HOS/CP, [63] t-NiCo-MOF, [49] CNFs@NiSe, [48] etc.) required lower cell voltage (≈1.4 V) to drive higher current density for the integrating of MOR at the anode and HER at the cathode.…”

Section: Mono-alcohol Oxidationmentioning

confidence: 99%

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Recent Advances on Electrolysis for Simultaneous Generation of Valuable Chemicals at both Anode and Cathode

Xiang

Peng

et al. 2021

Advanced Energy Materials

161

123

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Affected by both the energy shortage and environmental crisis, the development of electrocatalytic conversion process powered by renewable energy (wind, solar, tide, etc.) has received considerable attention. [1][2][3][4][5] Generally, electrocatalytic reactions involve To make efficient use of electrical energy in the whole electrocatalysis conversion process, the integrating of anode and cathode reactions plays a vital role. The combination of electrocatalytic anodic oxidation with cathodic reduction can not only maximize the return of energy investment, but also produces value-added materials on both sides. Herein, in this review, recent advances in co-electrolysis processes for valuable chemical production are systematically summarized. To be more specific, the popular hydrogen evolution reaction, carbon dioxide reduction reaction, nitrogen reduction reaction as well as nitrate reduction reaction integrated with anodic oxidation reactions to valueadded products, respectively are comprehensively reviewed, and then other paired electrolysis systems (especially for biomass-based compounds) toward high-value-added chemical generation are discussed in detail. This review sheds light on the integration of electrocatalytic reductions and oxidation reactions to develop high-value substances. To benefit researchers and facilitate the progress in this field, the challenges and future prospects for these integrated reactions are also proposed.

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Section: Her and Alcohol Oxidation Reactionmentioning

confidence: 99%

Section: Mono-alcohol Oxidationmentioning

confidence: 99%

Recent Advances on Electrolysis for Simultaneous Generation of Valuable Chemicals at both Anode and Cathode

Xiang

Peng

et al. 2021

Advanced Energy Materials

161

123

View full text Add to dashboard Cite

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“…[9][10][11][12] Previously, numerous research efforts focused on organic molecules like urea, hydrazine and various alcohols (including methanol, glycerol and 5-hydroxymethylfurfural) as the more readily oxidized species. [13][14][15][16][17][18][19][20][21][22][23][24] Compared with OER, they could not only significantly enhance anodic reaction kinetics, but also dramatically reduced the working voltage of the whole cell. [25][26] Nevertheless, oxidizing urea or hydrazine would generate valueless decomposition products (CO 2 , H 2 O and N 2 ), and primary alcohol would be usually oxidized into corresponding fully oxidized products (organic acids).…”

mentioning

confidence: 99%

Accelerating H₂ Evolution by Anodic Semi‐dehydrogenation of Tetrahydroisoquinolines in Water over Co₃O₄ Nanoribbon Arrays Decorated Nickel Foam

Xiang

Wang

et al. 2021

Chemistry A European J

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Coupling the H 2 evolution reaction in water with thermodynamically favorable organic oxidation reactions is highly desirable, because it can enhance the energy conversion efficiency compared with electrocatalytic water splitting, and produce value-added chemicals instead of O 2 in the anodic reaction. Herein, Co 3 O 4 nanoribbon arrays in situ grown on nickel foam (Co 3 O 4 @NF) was employed as an effective electrocatalyst for the selective oxidation of tetrahydroisoquinolines (THIQs). Various value-added semidehydrogenation products including dihydroisoquinolines with electro-deficient or -rich groups could be obtained with moderate yields and faradaic efficiencies. Benefitting from the rich surface active sites of Co 3 O 4 @NF, a twoelectrode (Co 3 O 4 @NF j j Pt) electrolytic system drove a benchmark current density of 10 mA cm À 2 at a cell voltage as low as 1.446 V in 1.0 M KOH aqueous solution containing 0.02 M THIQ, which was reduced by 174 mV in comparison with that of overall water splitting.

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“…The electrochemical upgrading of glycerol is also an appealing biomass conversion process to mainly yield formate. [25,47,48] By employing Ni 2 PÀ CoP/NF anode, glycerol is discovered to undergoe a dominant 8-electron oxidation process to selectively form formate as identified by IC (Figure 5f). The concentration of formate with the corresponding product selectivity as a function of the total charge passed throughout the entire electrolysis are presented in Figure 5g.…”

Section: Co-generation Of H 2 and Formate For Ni 2 Pà Cop/nf Bifunctional Electrodesmentioning

confidence: 99%

Energy‐saving H₂ Generation Coupled with Oxidative Alcohol Refining over Bimetallic Phosphide Ni₂P−CoP Junction Bifunctional Electrocatalysts

Hao

Wang

et al. 2021

ChemSusChem

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The realization of large-scale H 2 production from electrocatalytic water splitting is severely impeded by the kinetically sluggish and economically less viable anodic oxygen evolution reaction.Here, an efficient strategy was established for the concurrent H 2 production and oxidative alcohols refining into value-added formate by utilizing self-supported Ni 2 PÀ CoP bifunctional electrocatalysts. Benefiting from high intrinsic activity, abundant active sites, and synergistic promoting effects of bimetallic phosphides, the constructed two-electrode electrolyzer required a cell voltage of around 1.3 V to achieve 10 mA cm À 2 , which is more than 200 mV lower than that of pure water splitting. Moreover, simultaneous productions of H 2 with nearunity conversion efficiency and formate at high faradaic efficiencies of 99.8 and 89.6 % oxidatively produced from methanol and glycerol, respectively, were achieved with excellent durability. This work presents a general and economic approach toward the fabrication of cost-effective electrocatalysts for energy-efficient and profitable large-scale renewable energy integration.

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Constructing multifunctional ‘Nanoplatelet-on-Nanoarray’ electrocatalyst with unprecedented activity towards novel selective organic oxidation reactions to boost hydrogen production

Cited by 105 publications

References 87 publications

Recent Advances on Electrolysis for Simultaneous Generation of Valuable Chemicals at both Anode and Cathode

Recent Advances on Electrolysis for Simultaneous Generation of Valuable Chemicals at both Anode and Cathode

Accelerating H₂ Evolution by Anodic Semi‐dehydrogenation of Tetrahydroisoquinolines in Water over Co₃O₄ Nanoribbon Arrays Decorated Nickel Foam

Energy‐saving H₂ Generation Coupled with Oxidative Alcohol Refining over Bimetallic Phosphide Ni₂P−CoP Junction Bifunctional Electrocatalysts

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Constructing multifunctional ‘Nanoplatelet-on-Nanoarray’ electrocatalyst with unprecedented activity towards novel selective organic oxidation reactions to boost hydrogen production

Cited by 105 publications

References 87 publications

Recent Advances on Electrolysis for Simultaneous Generation of Valuable Chemicals at both Anode and Cathode

Recent Advances on Electrolysis for Simultaneous Generation of Valuable Chemicals at both Anode and Cathode

Accelerating H2 Evolution by Anodic Semi‐dehydrogenation of Tetrahydroisoquinolines in Water over Co3O4 Nanoribbon Arrays Decorated Nickel Foam

Energy‐saving H2 Generation Coupled with Oxidative Alcohol Refining over Bimetallic Phosphide Ni2P−CoP Junction Bifunctional Electrocatalysts

Contact Info

Product

Resources

About

Accelerating H₂ Evolution by Anodic Semi‐dehydrogenation of Tetrahydroisoquinolines in Water over Co₃O₄ Nanoribbon Arrays Decorated Nickel Foam

Energy‐saving H₂ Generation Coupled with Oxidative Alcohol Refining over Bimetallic Phosphide Ni₂P−CoP Junction Bifunctional Electrocatalysts