Designing Pd/O co-doped MoS<sub>x</sub> for boosting the hydrogen evolution reaction

Zhan, Yingxin; Zhou, Xuemei; Nie, Huagui; Xu, Xiangju; Zheng, Xiannuo; Hou, Junjie; Duan, Huan; Huang, Shaoming; Yang, Zhi

doi:10.1039/c9ta02997d

Cited by 26 publications

(22 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, strong hydrogen adsorption significantly hampered Pd catalysts' HER activity and stability. But making Δ G H* closer to 0 by compounding Pd with materials with weaker hydrogen adsorption is a vital strategy to improve material activity and further enhance stability, such as Pd compounded with MoS 2 , which has Δ G H* > 0 31,116 …”

Section: Recent Progressmentioning

confidence: 99%

Recent progress on the long‐term stability of hydrogen evolution reaction electrocatalysts

Zhai

Chen

et al. 2022

InfoMat

140

View full text Add to dashboard Cite

Developing new methodologies to produce clean and renewable energy resources is pivotal for carbon‐neutral initiatives. Hydrogen (H2) is considered as an ideal energy resource due to its nontoxic, pollution‐free, high utilization rate, and high calorific combustion value. Electrolysis of water driven by the electricity generated from renewable and clean energy sources (e.g., solar energy, wind energy) to produce hydrogen attracts great efforts for hydrogen production with high purity. Recently, the breakthrough of the catalyst activity limit for the hydrogen evolution reaction (HER) catalysts has received extensive attention. Comparatively, fewer reviews have focused on the long‐term stability of HER catalysts, which is indeed decisive for large‐scale electrolytic industrialization. Therefore, a systematic summary concentrated on the durability of HER electrocatalysts would provide a fundamental understanding of the electrocatalytic performance for practical applications and offer new opportunities for the rational design of the highly performed HER electrocatalysts. This review summarizes the research progress toward the HER stability of precious metals, transition metals, and metal‐free electrocatalysts in the past few years. It discusses the challenges in the stability of HER electrocatalysts and the future perspectives. We anticipate that it would provide a valuable basis for designing robust HER electrocatalysts.

show abstract

Section: Recent Progressmentioning

confidence: 99%

Recent progress on the long‐term stability of hydrogen evolution reaction electrocatalysts

Zhai

Chen

et al. 2022

InfoMat

140

View full text Add to dashboard Cite

show abstract

“…Recent studies have demonstrated that atom doping can effectively alter the electronic structure of MoS 2 and tune the electron density of Mo for high hydrogen evolution reaction (HER) performance. [29][30][31] However, the MoS 2 has a poor performance when it used as electrocatalyst for OER. Co-based compounds are considered to have ideal corrosion resistance in alkaline solutions, but the activity of single individual Co compounds is insufficient.…”

Section: Introductionmentioning

confidence: 99%

“…Among many transition metal sulfides that can replace noble metal catalysis, molybdenum disulfide (MoS 2 ) has been widely concerned because of its exposed specific surface area and active sites when it is made into two‐dimensional materials. Recent studies have demonstrated that atom doping can effectively alter the electronic structure of MoS 2 and tune the electron density of Mo for high hydrogen evolution reaction (HER) performance [29–31] . However, the MoS 2 has a poor performance when it used as electrocatalyst for OER.…”

Section: Introductionmentioning

confidence: 99%

Co−Mo−S Nanoflowers Wrapped Oxidized Multi‐Walled Carbon Nanotubes as Efficient Electrocatalysts for Oxygen Evolution Reaction

Zhou

et al. 2021

ChemCatChem

View full text Add to dashboard Cite

Developing highly active and stable earth-abundant electrocatalysts for water splitting is of prime importance for renewable energy conversion systems. Herein, we develop a facile hydrothermal process to prepare nanoflowers by compounding CoÀ MoÀ S and oxidized multi-walled carbon nanotubes (denoted as Co 1.5 Mo 1.0 S/o-MWNTs) as efficient oxygen evolution reaction (OER) catalysts. Oxidized MWNTs could enhance the hydrophilicity and electrical conductivity of the catalyst conductivity. Co and Mo charge transfer can be accelerated after the chemical hybridization of Co, Mo and highly conductive o-MWNTs. Co is easily oxidized into cobalt oxyhydroxide, which acts as the active site for OER. The electrocatalyst exhibits highly efficient electrocatalytic performances, achieving low overpotential of 311 mV for the OER at current density of 10 mA cm À 2 and low Tafel slope of 70 mV dec À 1 in alkaline media. The catalyst maintains good stability even after 10 hours of chronoamperometry test at 1.60 V in alkaline solution. This work provides a new direction for boosting the electrocatalytic activity through coupling bimetallic sulfides and constructing with conductive substrate.

show abstract

“…The ideal candidate sought out for economical hydrogen production from water electrolysis in acidic or alkaline media would be considered sustainable by the chemical industry because of the robust electrode materials and highly efficient electrocatalysts required . Although noble-metal materials such as those based on platinum have been considered the most efficient electrocatalysts for the hydrogen evolution reaction (HER) in both acidic and alkaline media, − high cost and terrestrial scarcity have imposed limits on large-scale applications. Thus, developing a low-cost HER electrocatalyst using non-noble elements with superior activity as well as high stability to replace high-cost platinum has been one of the most urgently sought-after goals of the last several years. − …”

Section: Introductionmentioning

confidence: 99%

Boosting Electrocatalytic HER Activity of 3D Interconnected CoSP via Metal Doping: Active and Stable Electrocatalysts for pH-Universal Hydrogen Generation

et al. 2020

View full text Add to dashboard Cite

Recently, many research studies have been focused on anion or cation substitution into the lattice of pyrite-type cobalt disulfide (CoS 2 ) for enhancing the hydrogen evolution reaction (HER) performance. Nonetheless, finding the correct pair of anion−cation dual substitution with added synergistic effect for boosting pH-universal HER activity remains an ongoing challenge. Additionally, a generalized activity descriptor and the HER mechanism in alkaline media remain elusive. Herein, to elucidate the HER mechanism and obtain the suitable anion−cation pair, we investigated the codoping of metal cations (Ti/V/Cr/Mn/Fe) and phosphorus anions into the CoS 2 moiety. Our theoretical prediction revealed that Ti and P codoping into CoS 2 exhibits superior HER performance at both pH 0 and 14, which is ascribed to the weak hydrogen binding energy in acid and fast water dissociation kinetics in alkaline media, thereby promoting HER. Remarkably, a follow-up experiment confirmed that Ti-CoSP showed astonishing HER activity inducing low overpotentials of 44 and 132 mV at −10 mA cm −2 in acidic and alkaline media, respectively, with superior stability for 40 h.

show abstract

Designing Pd/O co-doped MoS_x for boosting the hydrogen evolution reaction

Abstract: Pd/O co-doped MoSx catalyst with an excellent HER performance is designed by an upgraded sacrificial-counter-electrode method. DFT calculations confirm that the Pd/O co-doping and the unsaturated S atoms around the defects (PdMo + OS) would enormously promote the HER activity.

Cited by 26 publications

References 30 publications

Recent progress on the long‐term stability of hydrogen evolution reaction electrocatalysts

Recent progress on the long‐term stability of hydrogen evolution reaction electrocatalysts

Co−Mo−S Nanoflowers Wrapped Oxidized Multi‐Walled Carbon Nanotubes as Efficient Electrocatalysts for Oxygen Evolution Reaction

Boosting Electrocatalytic HER Activity of 3D Interconnected CoSP via Metal Doping: Active and Stable Electrocatalysts for pH-Universal Hydrogen Generation

Contact Info

Product

Resources

About

Designing Pd/O co-doped MoSx for boosting the hydrogen evolution reaction

Abstract: Pd/O co-doped MoSx catalyst with an excellent HER performance is designed by an upgraded sacrificial-counter-electrode method. DFT calculations confirm that the Pd/O co-doping and the unsaturated S atoms around the defects (PdMo + OS) would enormously promote the HER activity.

Cited by 26 publications

References 30 publications

Recent progress on the long‐term stability of hydrogen evolution reaction electrocatalysts

Recent progress on the long‐term stability of hydrogen evolution reaction electrocatalysts

Co−Mo−S Nanoflowers Wrapped Oxidized Multi‐Walled Carbon Nanotubes as Efficient Electrocatalysts for Oxygen Evolution Reaction

Boosting Electrocatalytic HER Activity of 3D Interconnected CoSP via Metal Doping: Active and Stable Electrocatalysts for pH-Universal Hydrogen Generation

Contact Info

Product

Resources

About

Designing Pd/O co-doped MoS_x for boosting the hydrogen evolution reaction