Ga doping enables superior alkaline hydrogen evolution reaction performances of CoP

Zhang, Ying; Hui, Zhen Xin; Zhou, Hong; Zai, Shi Feng; Wen, Zi; Li, Jian Chen; Yang, Chun; Jiang, Qing

doi:10.1016/j.cej.2021.132012

Cited by 27 publications

(23 citation statements)

References 86 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the performance of Co-Cu-P-NS also has certain advantages compared with some excellent Co and Ni-based phosphides reported recently, especially in HER. For example, the HER overpotential of Co-Cu-P-NS at a current density of 10 mA/cm 2 (99 mV) is superior to that of Mn–Co bimetallic phosphate (109 mV), CoP nanosheets (108 mV), Co 2 P/CoP hollow nanospheres (118 mV), CoP-nitrogen-doped carbon@NiFeP nanoflakes (162 mV), hyperbranched Co–Ni–P nanocrystals (119 mV), and hierarchical NiCo 2 O 4 @Ni 2 P nanorods (141 mV) . As for OER, the overpotential of Co-Cu-P-NS is also superior to that of Janus-structured Ni/Ni 2 P nanoparticles (285 mV), hierarchical NiCo 2 O 4 @Ni 2 P nanorods (350 mV at a current density of 50 mA/cm 2 ), and hierarchical coral-like Ni 2 P–Ni 5 P 4 (300 mV) …”

Section: Resultsmentioning

confidence: 99%

Highly Mesoporous Cobalt-Hybridized 2D Cu₃P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

et al. 2021

View full text Add to dashboard Cite

Recently, developing economical electrocatalysts with high performance in water decomposition has become a research hotspot. Herein, two kinds of cobalt-hybridized Cu 3 P nanostructure array electrocatalysts (including highly mesoporous 2D nanosheets and sugar gourd-like 1D nanowires) were controllably grown on a nickel foam substrate through a simple hydrothermal method combined with a subsequent phosphating treatment method. An electrocatalytic test indicated that the as-prepared 2D nanosheet array exhibited excellent activity and stability toward hydrogen evolution reaction under alkaline conditions, which offered a low overpotential of 99 mV at 10 mA/cm 2 and a small Tafel slope of 70.4 mV/dec, whereas a competitive overpotential of 272 mV was required for oxygen evolution reaction. In addition, the 2D nanosheet array delivered a low cell voltage of 1.66 V at 10 mA/cm 2 in a symmetric two-electrode system, implying its huge potential in overall water decomposition. The electrocatalytic performance is superior to the as-prepared 1D nanowire array and most of the Cu 3 P-related electrocatalysts previously reported. Experimental measurements and first-principles calculations show that the excellent performance of the 2D nanosheet array can be attributed to its unique 2D mesoporous structure and hybridization of cobalt, which not only provide a large electrochemically active surface and fast electrocatalytic reaction kinetics but also weaken the binding strength of electrocatalytic reaction intermediates. The present study provides a simple and controllable approach to synthesize Cu 3 P-based bimetallic phosphide nanostructures, which can be used as boosting Janus electrocatalysts for water decomposition.

show abstract

Section: Resultsmentioning

confidence: 99%

Highly Mesoporous Cobalt-Hybridized 2D Cu₃P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The high-resolution TEM (HRTEM) image (Fig. 2f ) exhibits well-resolved lattice fringes with an interplanar spacing of 0.345 nm, which is assigned to the ( 220 43,44 Furthermore, the welldeconvoluted peaks positioned at 780.9 and 796.9 eV correspond to the Co 3+ 2p 3/2 and Co 3+ 2p 1/2 , respectively. 45 It is worth mentioning that the binding energy peak positions of all Co 2p peaks constantly negatively shift to the lower binding energy region accompanied by the increment of the Ni content, suggesting the markedly modulated electronic structures of Co 3 S 4 by the Ni incorporation.…”

Section: Resultsmentioning

confidence: 99%

Reactive template-engaged synthesis of Ni-doped Co₃S₄ hollow and porous nanospheres with optimal electronic modulation toward high-efficiency electrochemical oxygen evolution

Yang

Zhao

et al. 2022

Inorg. Chem. Front.

View full text Add to dashboard Cite

show abstract

“…Zhang et al developed a simple two‐step method (electrodeposition and phosphorization) to prepare doped gallium (Ga) into ultrafine CoP nanosheets (Ga‐CoP NSs), where the performance was maintained at a low current density for 50 h and an 81% activity retention at high current density for 100 h (Figure 12A–D). 168 DFT calculations revealed that the introduction of Ga atoms could enhance the adsorption of H 2 O, weaken the adsorption of OH, and optimize the adsorption and desorption of H (Figure 12E). In addition, the unique 3D structural advantages of the material would also get good electrochemical stability.…”

Section: Recent Progressmentioning

confidence: 99%

Section: Recent Progressmentioning

confidence: 99%

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

Zhai

Chen

et al. 2022

InfoMat

106

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

Ga doping enables superior alkaline hydrogen evolution reaction performances of CoP

Cited by 27 publications

References 86 publications

Highly Mesoporous Cobalt-Hybridized 2D Cu₃P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

Highly Mesoporous Cobalt-Hybridized 2D Cu₃P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

Reactive template-engaged synthesis of Ni-doped Co₃S₄ hollow and porous nanospheres with optimal electronic modulation toward high-efficiency electrochemical oxygen evolution

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

Contact Info

Product

Resources

About

Ga doping enables superior alkaline hydrogen evolution reaction performances of CoP

Cited by 27 publications

References 86 publications

Highly Mesoporous Cobalt-Hybridized 2D Cu3P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

Highly Mesoporous Cobalt-Hybridized 2D Cu3P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

Reactive template-engaged synthesis of Ni-doped Co3S4 hollow and porous nanospheres with optimal electronic modulation toward high-efficiency electrochemical oxygen evolution

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

Contact Info

Product

Resources

About

Highly Mesoporous Cobalt-Hybridized 2D Cu₃P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

Highly Mesoporous Cobalt-Hybridized 2D Cu₃P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

Reactive template-engaged synthesis of Ni-doped Co₃S₄ hollow and porous nanospheres with optimal electronic modulation toward high-efficiency electrochemical oxygen evolution