Holey platinum nanotubes for ethanol electrochemical reforming in aqueous solution

Wang, Tianjiao; Sun, Hui‐Ying; Xue, Qi; Zhong, Mingjun; Li, Fu-Min; Tian, Xinlong; Chen, Pei; Yin, Shibin; Chen, Yu

doi:10.1016/j.scib.2021.05.027

Cited by 72 publications

(22 citation statements)

References 42 publications

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“…SEM energy dispersive X‐ray spectroscopy (EDX) mapping patterns of DMG–Pd II reveal the uniform distribution of C, O, N, and Pd elements in nanorods (Figure ), which confirms the successful synthesis of DMG–Pd II nanorods. In the second step, DMG–Pd II nanorods are reduced in a hydrogen (H 2 ) atmosphere at 200°C to obtain Pd PNTs based on the inside–outside Ostwald ripening effect 47,52 . Specifically, the DMG–Pd II molecules on nanorods surface are first reduced to Pd grains.…”

Section: Resultsmentioning

confidence: 99%

“…In the second step, DMG-Pd II nanorods are reduced in a hydrogen (H 2 ) atmosphere at 200°C to obtain Pd PNTs based on the inside-outside Ostwald ripening effect. 47,52 Specifically, the DMG-Pd II molecules on nanorods surface are first reduced to Pd grains. Then, the DMG-Pd II molecules inside the nanorods are further reduced to form Pd atoms and diffuse in the formed Pd grains of nanorods.…”

Section: The Synthesis Process Of Pd 3 P Pntsmentioning

confidence: 99%

“…[40][41][42][43][44] At present, most 1D NTs are mainly fabricated by the template methods, such as hard-template, self-template, and soft-template strategies. 14,[45][46][47][48][49] Among them, the self-template method may be a preferred method for the synthesis of NTs, which avoids the addition of surfactant and tedious template removal steps. 50 Due to the removal of the template and the assembly of nanoparticles subunits in the synthesis process, the fabricated metal nanotubes tend to produce a porous structure, resulting in substantial defect atoms with high electroactivity.…”

Section: Introductionmentioning

confidence: 99%

“…At present, most 1D NTs are mainly fabricated by the template methods, such as hard‐template, self‐template, and soft‐template strategies 14,45–49 . Among them, the self‐template method may be a preferred method for the synthesis of NTs, which avoids the addition of surfactant and tedious template removal steps 50 .…”

Section: Introductionmentioning

confidence: 99%

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Porous palladium phosphide nanotubes for formic acid electrooxidation

et al. 2022

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The development of an efficient catalyst for formic acid electrocatalytic oxidation reaction (FAEOR) is of great significance to accelerate the commercial application of direct formic acid fuel cells (DFAFC). Herein, palladium phosphide (Pd x P y ) porous nanotubes (PNTs) with different phosphide content (i.e., Pd 3 P and Pd 5 P 2 ) are prepared by combining the self-template reduction method of dimethylglyoxime-Pd(II) complex nanorods and succedent phosphating treatment.During the reduction process, the self-removal of the template and the continual inside-outside Ostwald ripening phenomenon are responsible for the generation of the one-dimensional hollow and porous architecture. On the basis of the unique synthetic procedure and structural advantages, Pd 3 P PNTs with optimized phosphide content show outstanding electroactivity and stability for FAEOR. Importantly, the strong electronic effect between Pd and P promotes the direct pathway of FAEOR and inhibits the occurrence of the formic acid decomposition reaction, which effectively enhances the FAEOR electroactivity of Pd 3 P PNTs. In view of the facial synthesis, excellent electroactivity, high stability, and unordinary selectivity, Pd 3 P PNTs have the potential to be an efficient anode electrocatalyst for DFAFC.

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Section: Resultsmentioning

confidence: 99%

Section: The Synthesis Process Of Pd 3 P Pntsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Porous palladium phosphide nanotubes for formic acid electrooxidation

et al. 2022

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“…To modify the traditional Pt/C catalyst of carbon-supported Pt nanoparticles with the size of ~3 nm for further improving their catalytic ORR performance, considerable efforts have been made to design various Pt nanostructures, such as zero-dimensional (0D) polyhedrons, one-dimensional (1D) nanorods, nanowires and nanotubes, two-dimensional (2D) nanoplates, nano-sheets, and nanobelts, as well as three-dimensional (3D) networks. [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] Among them, the 3D porous networks have shown great advantages in the aspects of catalytic activity and durability. The hollow and porous structure of such a 3D porous network can expose abundant lattice planes, provide more active surface area and enhance mass transfer.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Surfactant‐Induced Platinum Nanospheres with a Porous Network Structure for Highly Effective Oxygen Reduction Catalysis

Zhao

Sun

Cai

et al. 2022

Chemistry An Asian Journal

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Developing a facile and eco-friendly method for the large-scale synthesis of highly active and stable catalysts toward oxygen reduction reaction (ORR) is very important for the practical application of proton exchange membrane fuel cells (PEMFCs). In this paper, a mild aqueous-solution route has been successfully developed for the gram-scale synthesis of three-dimensional porous Pt nanospheres (Pt-NSs) that are composed of network-structured nanodendrites and/or oval multipods. In comparison with the commercial Pt/C catalyst, X-ray photoelectron spectroscopy (XPS) demonstrates the dominant metallic-state of Pt and electrochemical impedance spectroscopy (EIS) indicates the substantial improvement of conductivity for the Pt-NSs/C catalyst. The surfactant-induced porous network nanostructure improves both the catalytic ORR activity and durability. The optimal Pt-NSs/C catalyst exhibits a half-wave potential of 0.898 V (vs. RHE), leading to the mass activity of 0.18 A mg Pt À 1 and specific activity of 0.68 mA cm À 2 which are respectively 1.9 and 5.7 times greater than those of Pt/C. Moreover, the highly-active Pt-NSs/C catalyst shows a superior stability with the tenable morphology and the retained 78% of initial mass activity rather than the severe Pt aggregation and the only 58% retention of the commercial Pt/C catalyst after 10000 cycles.

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High‐Density Rare‐Earth Single‐Atom‐Triggered Unconventional Transition of Adsorption Configuration on La₁Pd Monatomic Alloy Metallene for Sustainable Electrocatalytic Alkynol Semi‐Hydrogenation

Mao,

Wang,

et al. 2024

Adv Funct Materials

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Electrocatalytic alkynol semi‐hydrogenation for the high‐value chemicals alkenol with mild conditions and carbon‐free emission is a potentially green and sustainable alternative to conventional thermocatalytic routes, which generally involves the design of electrocatalysts with high activity and high selectivity. Here, the rare‐earth single‐atom (Ln = La, Nd, Pr) coordinated Pd metallene (Ln1Pdene) is reported for electrocatalytic 2‐methyl‐3‐butyn‐2‐ol (MBY) semi‐hydrogenation reaction (MBY ESHR) to synthesis of 2‐methyl‐3‐buten‐2‐ol (MBE). Typically, in alkaline medium containing 0.1 m MBY, MBY conversion and MBE selectivity of La1Pdene are as high as ≈97% and ≈95%, respectively, with excellent electrocatalytic stability. Meanwhile, in situ infrared spectra reveal the conversion of MBY to MBE during the dynamic electrocatalytic process. Theoretical calculations reveal that the interaction between La single‐atom and Pd host triggers an unconventional transformation of the intermediate MBE* adsorption configuration during electrocatalytic hydrogenation, achieving the optimal desorption energy between La1Pd and target product and optimizing the reaction energy barriers to inhibit the over‐hydrogenation of MBE. Moreover, La single‐atom as the adsorption active site of the hydrogen supplier H2O effectively reduces the competition adsorption between the reactants MBY and H2O, rendering La single‐atom and Pd host as the synergistic co‐catalytic active sites to promote the electrocatalytic MBY semi‐hydrogenation reaction.

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Holey platinum nanotubes for ethanol electrochemical reforming in aqueous solution

Cited by 72 publications

References 42 publications

Porous palladium phosphide nanotubes for formic acid electrooxidation

Porous palladium phosphide nanotubes for formic acid electrooxidation

Facile Synthesis of Surfactant‐Induced Platinum Nanospheres with a Porous Network Structure for Highly Effective Oxygen Reduction Catalysis

High‐Density Rare‐Earth Single‐Atom‐Triggered Unconventional Transition of Adsorption Configuration on La₁Pd Monatomic Alloy Metallene for Sustainable Electrocatalytic Alkynol Semi‐Hydrogenation

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Holey platinum nanotubes for ethanol electrochemical reforming in aqueous solution

Cited by 72 publications

References 42 publications

Porous palladium phosphide nanotubes for formic acid electrooxidation

Porous palladium phosphide nanotubes for formic acid electrooxidation

Facile Synthesis of Surfactant‐Induced Platinum Nanospheres with a Porous Network Structure for Highly Effective Oxygen Reduction Catalysis

High‐Density Rare‐Earth Single‐Atom‐Triggered Unconventional Transition of Adsorption Configuration on La1Pd Monatomic Alloy Metallene for Sustainable Electrocatalytic Alkynol Semi‐Hydrogenation

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High‐Density Rare‐Earth Single‐Atom‐Triggered Unconventional Transition of Adsorption Configuration on La₁Pd Monatomic Alloy Metallene for Sustainable Electrocatalytic Alkynol Semi‐Hydrogenation