Designed synthesis of multi-walled carbon nanotubes@Cu@MoS2 hybrid as advanced electrocatalyst for highly efficient hydrogen evolution reaction

Li, Feng; Li, Jing; Lin, Xiaoqing; Li, Xinzhe; Fang, Yiyun; Jiao, Lixin; An, Xincai; Fu, Yan; Jin, Jun; Li, Rong

doi:10.1016/j.jpowsour.2015.09.084

Cited by 82 publications

(35 citation statements)

References 38 publications

(38 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Apparently, the BEs of the XPS peaks for Pt 4f 7/2 and Pt 4f 5/2 have both undergone a 0.4 eV negative shift from Pt/CNFs to PtCu/CNFs‐1:2. Moreover, As shown in Figure e, it can be seen that two sharp and strong peaks in the spectrum of the Cu/CNFs appear at 932.3 and 952.0 eV and are assigned to Cu 2p 3/2 and Cu 2p 1/2 , respectively . In Figure f, for PtCu/CNFs‐1:2, the BEs of Cu 2p 3/2 and Cu 2p 1/2 are shifted to 932.8 and 952.5 eV, respectively.…”

Section: Resultsmentioning

confidence: 80%

Designed Synthesis of Size‐Controlled PtCu Alloy Nanoparticles Encapsulated in Carbon Nanofibers and Their High Efficient Electrocatalytic Activity Toward Hydrogen Evolution Reaction

Wang

Chen

et al. 2017

Adv Materials Inter

View full text Add to dashboard Cite

Well‐dispersed PtCu alloy nanoparticles (NPs) with a diameter of only ≈2 nm encapsulated in carbon nanofibers (CNFs) are synthesized using electrospinning technology followed by a graphitization process in a chemical vapor deposition furnace. Distinctly, even with a small amount of Pt, the PtCu/CNFs‐1:2 catalyst possesses outstanding hydrogen evolution reaction (HER) activity, including small overpotential, long‐term stability, and a high exchange current density as well as large double layer capacitance (Cdl). The excellent HER performance of the PtCu/CNFs‐1:2 catalyst is attributed to the synergistic interaction between Pt and Cu, the uniform distribution of the alloy NPs and the use of CNFs with 3D architectures. This development may provide a simple, efficient, and green synthesis method to design bi‐ or multimetal alloys for use as the cathode electrocatalysts for the HER or other electrocatalytic devices.

show abstract

Section: Resultsmentioning

confidence: 80%

Designed Synthesis of Size‐Controlled PtCu Alloy Nanoparticles Encapsulated in Carbon Nanofibers and Their High Efficient Electrocatalytic Activity Toward Hydrogen Evolution Reaction

Wang

Chen

et al. 2017

Adv Materials Inter

View full text Add to dashboard Cite

show abstract

“…The emerging photoelectron peaks of Fe 3+ may be attributed to the easy oxidation of zero valent iron (ZVI) in air, which could result in a layer of iron oxide around the ZVI NPs. The peaks observed at 932.0 and 951.8 eV from the Cu 2p 3/2 and Cu 2p 1/2 spin‐orbit doublets, respectively, correspond to a metallic copper (Figure D), which is consistent with Cu NPs . The binding energy peaks of the three constituent elements Pd 3d 5/2 , Fe 2p 3/2 and Cu 2p 3/2 are shifted as compared to that of the standard literature values.…”

Section: Resultsmentioning

confidence: 88%

Unique Half Embedded/Exposed PdFeCu/C Interfacial Nanoalloy as High‐Performance Electrocatalyst for Oxygen Reduction Reaction

et al. 2019

View full text Add to dashboard Cite

Design of high‐performance non‐Pt electrocatalyst for fuel cell applications is greatly anticipated. Herein, we have developed a unique half‐embedded and half‐exposed interfacial PdFeCu nanoalloy anchored onto carbon matrix. The stable electronic coupling between the carbon matrix and PdFeCu nanoalloy possess very fast interfacial electron transfer which in turn enhances the electron conductivity. This makes the trimetallic nanoalloy high performing oxygen reduction reaction (ORR) electrocatalyst in both basic and acidic media. The PdFeCu/C nanoalloy exhibits enhanced electrochemically active surface area than various PdFe/C bimetallics as well as benchmark 20 wt% Pt/C and Pd/C. As a result, it offers larger active sites for ORR and eased the electron transport during the electrocatalysis. It exhibits 1.5‐ and 2.4‐fold higher mass activity in comparison to the Pt/C and Pd/C. Furthermore, it exhibits long‐term stability and low onset potential compared to those of the other catalysts. Thus, the present investigation shows potential strategy for the design and synthesis of Pt‐free electrocatalyst with remarkable catalytic activity and stability.

show abstract

“…A small Tafel slopes of 66 mV/dec for MoS2-RGO-3, which is much smaller than the Tafel slope of the MoS2 (∼162 mV/dec) and other MoS2-RGO samples (MoS2-RGO-1 ∼98 mV/dec, MoS2-RGO-2 ∼ 96 mV/dec and MoS2-RGO-4 ∼ 215 mV/dec). In principle, a lower Tafelslope means that a faster increase of HER rate with the increasing potential [32].…”

Section: Resultsmentioning

confidence: 99%

3D MoS2-Graphene Composite as Catalyst for Enhanced Efficient Hydrogen Evolution

Sarode¹,

Patil²,

Patil³

2018

ijcps

View full text Add to dashboard Cite

show abstract

Designed synthesis of multi-walled carbon nanotubes@Cu@MoS2 hybrid as advanced electrocatalyst for highly efficient hydrogen evolution reaction

Cited by 82 publications

References 38 publications

Designed Synthesis of Size‐Controlled PtCu Alloy Nanoparticles Encapsulated in Carbon Nanofibers and Their High Efficient Electrocatalytic Activity Toward Hydrogen Evolution Reaction

Designed Synthesis of Size‐Controlled PtCu Alloy Nanoparticles Encapsulated in Carbon Nanofibers and Their High Efficient Electrocatalytic Activity Toward Hydrogen Evolution Reaction

Unique Half Embedded/Exposed PdFeCu/C Interfacial Nanoalloy as High‐Performance Electrocatalyst for Oxygen Reduction Reaction

3D MoS2-Graphene Composite as Catalyst for Enhanced Efficient Hydrogen Evolution

Contact Info

Product

Resources

About