Confined growth of pyridinic N–Mo2C sites on MXenes for hydrogen evolution

2020 ◽  
Vol 8 (15) ◽  
pp. 7109-7116 ◽  
Author(s):  
Hao Wang ◽  
Yanping Lin ◽  
Shuyuan Liu ◽  
Jianmin Li ◽  
Liangmin Bu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Confined Growth ◽  
Ph Range ◽  
Pyridinic N

A hybrid of N-doped carbon encapsulated ultrasmall Mo2C nanodots on Ti3C2Tx MXene exhibits excellent HER performance in the entire pH range.

scholarly journals CoMn phosphide encapsulated in nitrogen-doped graphene for electrocatalytic hydrogen evolution over a broad pH range

2021 ◽  
Author(s):  
Jingjing Liu ◽  
Wenyao Li ◽  
Zhe Cui ◽  
Jiaojiao Li ◽  
Fang Yang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Core Shell ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Ph Range ◽  
Excellent Stability

A core–shell CoMn-P@NG heterostructure electrode demonstrated impressive performance of hydrogen evolution over a broad pH range and maintained excellent stability.

Activating Edge-Mo of 2H-MoS2 via Coordination with Pyridinic N–C for pH-Universal Hydrogen Evolution Electrocatalysis

ACS Catalysis ◽  
2021 ◽  
pp. 4486-4497
Author(s):  
Jiayi Qin ◽  
Cong Xi ◽  
Rui Zhang ◽  
Tao Liu ◽  
Peichao Zou ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Pyridinic N

scholarly journals A monodispersed CuPt alloy: synthesis and its superior catalytic performance in the hydrogen evolution reaction over a full pH range

RSC Advances ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 12470-12475
Author(s):  
Xinmei Liu ◽  
Chen Liang ◽  
Wenlong Yang ◽  
Chunyang Yang ◽  
Jiaqi Lin ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Stability ◽  
Low Cost ◽  
Catalytic Performance ◽  
Ph Range

An effective approach to achieve the low cost and high stability of electro-catalysts for HER.

scholarly journals Defect-Rich Heterogeneous MoS2/rGO/NiS Nanocomposite for Efficient pH-Universal Hydrogen Evolution

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 662 ◽  
Author(s):  
Guangsheng Liu ◽  
Kunyapat Thummavichai ◽  
Xuefeng Lv ◽  
Wenting Chen ◽  
Tingjun Lin ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Reduced Graphene ◽  
Heterogeneous Interfaces ◽  
Wide Ph Range ◽  
Ph Range ◽  
A Current ◽  
Poor Stability

Molybdenum disulfide (MoS2) has been universally demonstrated to be an effective electrocatalytic catalyst for hydrogen evolution reaction (HER). However, the low conductivity, few active sites and poor stability of MoS2-based electrocatalysts hinder its hydrogen evolution performance in a wide pH range. The introduction of other metal phases and carbon materials can create rich interfaces and defects to enhance the activity and stability of the catalyst. Herein, a new defect-rich heterogeneous ternary nanocomposite consisted of MoS2, NiS and reduced graphene oxide (rGO) are synthesized using ultrathin αNi(OH)2 nanowires as the nickel source. The MoS2/rGO/NiS-5 of optimal formulation in 0.5 M H2SO4, 1.0 M KOH and 1.0 M PBS only requires 152, 169 and 209 mV of overpotential to achieve a current density of 10 mA cm−2 (denoted as η10), respectively. The excellent HER performance of the MoS2/rGO/NiS-5 electrocatalyst can be ascribed to the synergistic effect of abundant heterogeneous interfaces in MoS2/rGO/NiS, expanded interlayer spacings, and the addition of high conductivity graphene oxide. The method reported here can provide a new idea for catalyst with Ni-Mo heterojunction, pH-universal and inexpensive hydrogen evolution reaction electrocatalyst.

A supramolecular-confinement pyrolysis route to ultrasmall rhodium phosphide nanoparticles as a robust electrocatalyst for hydrogen evolution in the entire pH range and seawater electrolysis

2020 ◽  
Vol 8 (48) ◽  
pp. 25768-25779
Author(s):  
Shoujie Liu ◽  
Yinjuan Chen ◽  
Li Yu ◽  
Yan Lin ◽  
Zhi Liu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Ph Range ◽  
Direct Electrolysis ◽  
Seawater Electrolysis

A supramolecular-confinement pyrolysis route was proposed for the synthesis of an ultrasmall rhodium phosphide nanocatalyst for pH-universal and direct electrolysis of seawater into hydrogen.

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