Molybdenum phosphide: a new highly efficient catalyst for the electrochemical hydrogen evolution reaction

Chen, Xiaobo; Wang, Dezhi; Wang, Zhiping; Zhou, Pan; Wu, Zhuangzhi; Jiang, Feng

doi:10.1039/c4cc05936k

Cited by 225 publications

(137 citation statements)

References 22 publications

Supporting

Mentioning

131

Contrasting

Order By: Relevance

“…2. We can see that the FeMoP-0.10 catalyst is large aggregated clusters composed of small nanoparticles, similar to the morphology and microstructure of pure MoP [11]. The element distribution of Fe, Mo and P was revealed by the SEM-EDX elemental mapping, demonstrating that these elements are well dispersed without remarkable sintered aggregations, as shown in Fig.…”

Section: Resultsmentioning

confidence: 64%

“…Remarkably, the FeMoP-0.10 catalyst exhibits the smallest Tafel slope, demonstrating the best HER activity among all the MoP-based catalysts. Compared to the pure MoP catalyst (60 mV dec -1 ) [11], the FeMoP-0.12 and FeMoP-0.14 even show larger Tafel slopes of 69 and 72 mV dec -1 , indicating worse HER activity. It can be concluded that only a suitable content of Fe can ensure the great enhancement of the final HER activity.…”

Section: Resultsmentioning

confidence: 91%

“…8 Moreover, calculated by the Scherrer equation, the smallest average crystal size is about 16 nm obtained over the FeMoP-0.10 catalyst, which is much smaller than that of the pure MoP (55 nm) [11]. Generally, the crystal size is reduced over all the Fe-promoted MoP catalysts with the addition of Fe, and average crystal sizes of 24 and 23 nm are obtained over FeMoP-0.06 and FeMoP-0.08, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…In our previous work, we revealed that the MoP catalyst showed better HER activity than the counterpart of Ni 2 P [11]. And more efforts have been made to further improve the HER activity over MoP-based catalysts.…”

Section: Introductionmentioning

confidence: 97%

“…Although Pt-based catalysts show the best HER activity up to now, their excessive price and lack of abundance limit the wide 5 industrial applications [2]. Possible alternatives to replace Pt-based catalysts are molybdenum-based materials, including molybdenum disulfide [3], [4] and [5], molybdenum boride [6], molybdenum nitride [7], molybdenum carbide [8], [9] and [10], and molybdenum phosphide [11], [12], [13] and [14], etc. Among them, molybdenum phosphide is one of the best candidates to replace Pt because of its low cost, rich reserve, high activity and good stability.…”

Section: Introductionmentioning

confidence: 97%

See 4 more Smart Citations

The Fe-promoted MoP catalyst with high activity for water splitting

Liang

Zhang

et al. 2016

Applied Catalysis A: General

Self Cite

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 64%

Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 97%

See 3 more Smart Citations

The Fe-promoted MoP catalyst with high activity for water splitting

Liang

Zhang

et al. 2016

Applied Catalysis A: General

Self Cite

View full text Add to dashboard Cite

Reduced Graphene Oxide‐Modified Carbon Nanotube/Polyimide Film Supported MoS₂ Nanoparticles for Electrocatalytic Hydrogen Evolution

Jiang

et al. 2015

Adv Funct Materials

115

View full text Add to dashboard Cite

wileyonlinelibrary.comAs a typical transition-metal dichalcogenide, MoS 2 is a promising electrocatalyst for HER. Both computational and experimental results have confi rmed that the HER activity of MoS 2 stemmed from the sulfur edges, whereas the basal planes were catalytically inert. [ 16,17 ] As a result, nanosized MoS 2 should be more active for HER electrocatalysis than the relatively inert bulk forms due to the presence of more exposed sulfur edges. Besides, the electrical conductivity of catalysts is crucial to the catalytic activity because a high conductivity can ensure a fast electron transfer during a catalytic process. [ 18,19 ] It is well-known that MoS 2 exhibits poor intrinsic conductivity originated from its large bandgap, [ 20 ] which signifi cantly limits the overall HER rate. The past years have witnessed expanding endeavors in improving the conductivity of MoS 2 -based electrocatalysts. Carbon materials have been widely used to improve the catalytic activity of MoS 2 , relying on their unique physicochemical properties. Dai and coworkers synthesized MoS 2 /RGO composite and achieved high HER catalytic activity at a low overpotential. [ 21 ] Chorkendorff and co-workers reported a highly active and stable carbon fi bre/ MoS x composite for electrochemical hydrogen evolution. [ 22 ] Cheng and co-workers synthesized CoS 2 /RGO-CNT composites for high effi cient HER electrocatalysts. [ 23 ] Such fi ndings suggest the signifi cance of carbon materials in HER electrocatalysis. MoS 2 /carbon composites have been successfully applied for the electrocatalytic HER, where carbon materials play the role of hosting MoS 2 as well as enhancing the conductivity of the composites.Although the HER properties of MoS 2 /carbon composites have been investigated, the electrocatalytic activity of MoS 2 supported on carbon materials in the form of a conducting polymer fi lm has not been studied. In this work, we synthesized MoS 2 on the reduced graphene oxide-modifi ed carbon nanotube/ polyimide (PI/CNT-RGO) fi lm by an electrochemical method. CNT can greatly improve the mechanical and electrical properties of CNT/polymer composites, leading to the good conductivity and mechanical properties of PI/CNT fi lm. [ 24,25 ] PI/CNT fi lm can be used over a wide temperature range of −200 to 300 °C and in the condition of strong acid or alkaline. We prepared PI/CNT fi lm and modifi ed the fi lm with RGO which further improved the conductivity of PI/CNT fi lm and affected the morphology of

show abstract

Metal‐Phosphide‐Containing Porous Carbons Derived from an Ionic‐Polymer Framework and Applied as Highly Efficient Electrochemical Catalysts for Water Splitting

Han

Feng

Zhang

et al. 2015

Adv Funct Materials

183

100

View full text Add to dashboard Cite

A novel phosphorus‐containing porous polymer is efficiently prepared from tris(4‐vinylphenyl)phosphane by radical polymerization, and it can be easily ionized to form an ionic porous polymer after treatment with hydrogen iodide. Upon ionic exchange, transition‐metal‐containing anions, such as tetrathiomolybdate (MoS4 2−) and hexacyanoferrate (Fe(CN)6 3−), are successfully loaded into the framework of the porous polymer to replace the original iodide anions, resulting in a polymer framework containing complex anions (termed HT‐Met, where Met = Mo or Fe). After pyrolysis under a hydrogen atmosphere, the HT‐Met materials are efficiently converted at a large scale to metal‐phosphide‐containing porous carbons (denoted as MetP@PC, where again Met = Mo or Fe). This approach provides a convenient pathway to the controlled preparation of metal‐phosphide‐loaded porous carbon composites. The MetP@PC composites exhibit superior electrocatalytic activity for the hydrogen evolution reaction (HER) under acidic conditions. In particular, MoP@PC with a low loading of 0.24 mg cm−2 (on a glass carbon electrode) affords an iR‐corrected (where i is current and R is resistance) current density of up to 10 mA cm−2 at 51 mV versus the reversible hydrogen electrode and a very low Tafel slope of 45 mV dec−1, in rotating disk measurements under saturated N2 conditions.

show abstract

Molybdenum phosphide: a new highly efficient catalyst for the electrochemical hydrogen evolution reaction

Cited by 225 publications

References 22 publications

The Fe-promoted MoP catalyst with high activity for water splitting

The Fe-promoted MoP catalyst with high activity for water splitting

Reduced Graphene Oxide‐Modified Carbon Nanotube/Polyimide Film Supported MoS₂ Nanoparticles for Electrocatalytic Hydrogen Evolution

Metal‐Phosphide‐Containing Porous Carbons Derived from an Ionic‐Polymer Framework and Applied as Highly Efficient Electrochemical Catalysts for Water Splitting

Contact Info

Product

Resources

About

Molybdenum phosphide: a new highly efficient catalyst for the electrochemical hydrogen evolution reaction

Cited by 225 publications

References 22 publications

The Fe-promoted MoP catalyst with high activity for water splitting

The Fe-promoted MoP catalyst with high activity for water splitting

Reduced Graphene Oxide‐Modified Carbon Nanotube/Polyimide Film Supported MoS2 Nanoparticles for Electrocatalytic Hydrogen Evolution

Metal‐Phosphide‐Containing Porous Carbons Derived from an Ionic‐Polymer Framework and Applied as Highly Efficient Electrochemical Catalysts for Water Splitting

Contact Info

Product

Resources

About

Reduced Graphene Oxide‐Modified Carbon Nanotube/Polyimide Film Supported MoS₂ Nanoparticles for Electrocatalytic Hydrogen Evolution