Nanostructures Ni2P / MoP @ N – doping porous carbon for efficient hydrogen evolution over a broad pH range

Rh particles in N-doped porous carbon materials derived from ZIF-8 as an efficient bifunctional electrocatalyst for the ORR and HER

“…It also demonstrated that the N-doped carbon matrix has a high degree of graphitization, which provides an excellent conductivity for electron transport in catalytic performance. [14][15][16] It is worth noting that I D /I G increased to a similar value to that at 800 C when the heat-treatment temperature was set at 1000 C, implying that pyrolysis at 1000 C would introduce defects. This result can be ascribed to the fact that Zn would be volatilized at the high temperature of 1000 C. 17 To estimate the stability of the coordination architecture in Rh-ZIF, the thermal behaviour of Rh-ZIF was studied by TGA (Fig.…”

An amorphous NiCuFeP@Cu3P nanoarray for an efficient hydrogen evolution reaction

“…2,3 Currently, hydrogen production by water electrolysis is a common method with zero carbon emission, especially when the electricity originates from other renewable energy such as sunlight or windpower. [4][5][6] In spite of water electrolysis being full of advantages, this reaction demands a high potential (higher than the theoretical value of 1.23 V), and the sluggish kinetics caused by a large overpotential will increase the power consumption. 7,8 In order to develop efficient electrocatalysts, there is an urgent need to solve the two core issues of reducing the overpotential and increasing the reaction rate of the hydrogen evolution reaction (HER).…”

Ru doped molybdenum-based nanowire arrays for efficient hydrogen evolution over a broad pH range

“…5–10 Various strategies such as nanocarbon hybridization 11,12 and heteroatom doping 13–15 have been developed to obtain active sites and promote the intrinsic activity of Mo-based compounds. 16–19 Among various nanostructures, NWAs possessing large specific surface area and ample open active channels may promote mass transport in the catalytic reaction. 20–26 At the same time, the tedious manufacturing process of the electrode is avoided by direct application of NWAs as conductive substrates, which results in a significant enhancement of activities.…”