Electronic modulation by N incorporation boosts the electrocatalytic performance of urchin-like Ni5P4 hollow microspheres for hydrogen evolution

Zhou, Guangyao; Ma, Ya-Ru; Wu, Xiaomei; Lin, Yingzi; Pang, Huan; Zhang, Mingyi; Xu, Lin; Tian, Ziqi; Tang, Yawen

doi:10.1016/j.cej.2020.126302

Cited by 58 publications

(28 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…74-1385). Meanwhile, the peaks observed 26 Similarly, the Co 2p 3/2 core level spectrum of the M x P shown in Figure 3c exhibits a pair of peaks located at 778.1 and 792.85 eV corresponding to the Co−P bond. Among them, the peak occurrence of 778.1 eV is close to the metallic Co state (778.2 eV) 27 and the peak occurrence of 792.85 eV indicates the existence of the fractional positive charge for cobalt phosphide species.…”

Section: ■ Results and Discussionmentioning

confidence: 76%

“…Compared with the Ni 2p 3/2 of NiCoWO 4 (bottom line), the Ni 2p 3/2 of M x O@M x P/PNCF, as shown in Figure b (top line), shows two main peaks at 852.7 and 856.1 eV, accompanied by a satellite peak at 861.8 eV. Meanwhile, the Ni 2p 1/2 spectrum also exhibits two main peaks at 870.0 and 874.1 eV as well as a satellite peak at 880.01 eV. , Note that the two peaks at 852.6 and 870.01 are attributed to the Ni 2p 3/2 and Ni 2p 1/2 states of Ni in the Ni–P bonds, respectively. , The other peaks at 856.1 and 874.1 eV belong to the Ni 2p 3/2 and Ni 2p 1/2 states, respectively, and can be ascribed to the Ni 2+ charge state in Ni–O . Similarly, the Co 2p 3/2 core level spectrum of the M x P shown in Figure c exhibits a pair of peaks located at 778.1 and 792.85 eV corresponding to the Co–P bond.…”

Section: Resultsmentioning

confidence: 92%

See 1 more Smart Citation

Trimetallic Octahedral Ni–Co–W Phosphoxide Sprouted from Plasma-Defect-Engineered Ni–Co Support for Ultrahigh-Performance Electrocatalytic Hydrogen Evolution

Zhang

Chen

et al. 2021

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

The fundamental obstacle that only a few part of hydrogen energy is currently produced by industrial electrocatalysis, is in insufficient performance and high cost of even the most advanced catalysts. To meet the demand for high-performance, lasting catalysts at industry-relevant current densities (≥500 mA cm–2) with overpotentials ≤300 mV, here, we uniquely heterointerface the Ni, Co, and W phosphoxide phases in situ on plasma-defect-engineered Ni–Co support (M x O@M x P/PNCF (M = Ni, Co, W) core–shell heterostructure) to dramatically enhance the electrocatalytic performances with very high current densities. The achieved H2 evolution requires low overpotentials of only 53 and 343 mV for current densities of 10 (j 10) and 1000 mA cm–2 (j 1000) and shows fast reaction kinetics with a small Tafel slope of 40 mV dec–1. Importantly, the M x O@M x P/PNCF presents spectacular activity at industry-relevant current densities (>j 300) and outperforms the industry Pt/C benchmark. Our catalyst shows excellent long-term stability and durability with no significant activity loss after 104 cycles and 100 h of operation in an alkaline electrolyte. First-principles simulations reveal the best metal-phosphide combination to minimize the Gibbs energy for absorbing H+ ions on the reactive sites and to enhance the desorption of H2.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 76%

Section: Resultsmentioning

confidence: 92%

Trimetallic Octahedral Ni–Co–W Phosphoxide Sprouted from Plasma-Defect-Engineered Ni–Co Support for Ultrahigh-Performance Electrocatalytic Hydrogen Evolution

Zhang

Chen

et al. 2021

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…在过渡金属内的原子与原子间存在间隙，当氮原子插入这些间隙时，就得到了过渡金属氮化物 [14] 。由于氮原子带负电荷，氮原子的插入使金属晶格发生畸变，金属的 d 带变宽，导致 d 带收缩增大，改变了费米能级附近的态密度，从而使过渡金属氮化物的电子结构发生改变，使其具备类似于铂和钯等贵金属的催化活性。因而，金属氮化物成为最有潜力的能够取代贵金属的催化剂。目前，HER 过渡金属氮化物基催化剂主要包括钴 [15] 、镍 [16][17][18][19][20][21][22] 、铁 [23] 、钼 [24,25] 、钨 [26,27] 、铜 [28] [29] The Gibbs free energy of Had on the (100) plane of CuNNi3, InNNi3, and Cu0.5In0.5NNi3 is calculated [30] .…”

Section: 过渡金属氮化物unclassified

Electrocatalytic hydrogen evolution: From principle to application

Xia¹,

Wang²,

Jiao³

et al. 2021

Sci. Sin.-Chim

View full text Add to dashboard Cite

With the increasing global population and increasing energy demands, major concerns have been raised over the security of our energy further. Developing sustainable, fossil-free pathways to produce fuels and chemicals could be an effective strategy. The characteristics of no carbon dioxide emission and high energy density make hydrogen an ideal energy carrier. In the energy conversion process, hydrogen can be generated from renewable energy through the electrocatalytic process and store energy in chemical bonds. It can also be converted back to electronic energy when needed through fuel cells and other equipment. Therefore, exploring efficient hydrogen production methods and conversion pathways is the top priority to realize the application of hydrogen energy. In the hydrogen production strategy, the electrocatalytic pathway has become one of the best solutions for efficient hydrogen production, attributing to its fast, efficient, and high selectivity, and low-cost performance. Since Faraday first defined the concept of electrolyzed water in 1833, different types of electrolytic cell devices appeared in the 1920s and 1930s. A variety of designs for electrocatalytic hydrogen production and coupling reactions have been developed, and the technology of hydrogen production by electrolysis has made great progress. This review focuses on the basic principles of electrocatalytic hydrogen production, performance evaluation methods, electrocatalyst types, and electrolyzer structure. Except for the summaries on the latest research progress of electrocatalytic hydrogen production, the existing problems in the current research and possible solutions have also prospected.

show abstract

“…7–10 Currently, electrochemical water splitting represents a readily-implemented and eco-friendly strategy to generate high-purity hydrogen. 11–13 However, as a half reaction of overall water splitting, the oxygen evolution reaction (OER) is generally regarded as the bottleneck of water splitting owing to the complex four-electron transfer pathway for the cleavage of O–H bonds and the formation of O–O bonds (4OH − → 2H 2 O + 4e − + O 2 ). 14–17 Accordingly, appropriate electrocatalysts are required to reduce the high kinetic barrier and expedite the reaction rate.…”

Section: Introductionmentioning

confidence: 99%

Fe incorporation-induced electronic modification of Co-tannic acid complex nanoflowers for high-performance water oxidation

Zhou

et al. 2022

Inorg. Chem. Front.

Self Cite

View full text Add to dashboard Cite

show abstract

Electronic modulation by N incorporation boosts the electrocatalytic performance of urchin-like Ni5P4 hollow microspheres for hydrogen evolution

Cited by 58 publications

References 53 publications

Trimetallic Octahedral Ni–Co–W Phosphoxide Sprouted from Plasma-Defect-Engineered Ni–Co Support for Ultrahigh-Performance Electrocatalytic Hydrogen Evolution

Trimetallic Octahedral Ni–Co–W Phosphoxide Sprouted from Plasma-Defect-Engineered Ni–Co Support for Ultrahigh-Performance Electrocatalytic Hydrogen Evolution

Electrocatalytic hydrogen evolution: From principle to application

Fe incorporation-induced electronic modification of Co-tannic acid complex nanoflowers for high-performance water oxidation

Contact Info

Product

Resources

About