Insight on the Ultrafast Water Treatment over NiFe-Layered Double Hydroxides via Electroactivation of Ferrate(VI): The Role of Spin State Regulation DOI Open Access

Xinyu Gai,

Ningxuan Xue,

Pengxiang Qiu

et al.

Water, Journal Year: 2025, Volume and Issue: 17(9), P. 1369 - 1369

Published: May 1, 2025

Ferrate (Fe(VI)), an emerging green oxidant and disinfectant in water treatment, faces challenges due to its limited reaction efficiency stemming from a highly electron-deficient state. To address this, we designed NiFe-Layered Double Hydroxides (NiFe-LDHs) with different spin states enhance electron transfer Fe(VI)-mediated advanced oxidation processes (AOPs). We hypothesized that fine-tuning the state of NiFe-LDHs could optimize balance between adsorption capabilities electronic structure regulation. Our experiments revealed intermediate-spin NiFeLDH-1, magnetic moment 0.67 μB, exhibited best catalytic performance, achieving 100% phenol removal. The NiFeLDH-x/Fe(VI) system demonstrated significant synergistic enhancement degradation efficiency. In addition, NiFeLDH-1 showed excellent performance stability continuous flow experiments. This study unveils novel correlation polarization efficiency, offering insights into optimization electrocatalysts for AOPs. findings suggest modulation is promising strategy electrocatalytic activity non-noble metal catalysts.

Language: Английский

S- and N-Co-Doped Carbon-Nanoplate-Encased Ni Nanoparticles Derived from Dual-Ligand-Assembled Ni-MOFs as Efficient Electrocatalysts for the Oxygen Evolution Reaction DOI Creative Commons

Huijuan Han,

Yalei Zhang, Chunrui Zhou

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(4), P. 820 - 820

Published: Feb. 10, 2025

To achieve the "double carbon" goal, it is urgent to reform energy system. The oxygen evolution reaction (OER) a vital semi-reaction for many new energy-storage and conversion devices. Metal nanoparticles embedded in heteroatom-doped carbon materials prepared by pyrolyzing of metal-organic frameworks (MOFs) have been key route obtain high-performance electrochemical catalysts. Herein, nanocatalyst embedding Ni into S- N-co-doped nanoplate (Ni NPs@SN-CNP) has synthesized pyrolysis Ni-MOF precursor. NPs@SN-CNP exhibits superior performance with an overpotential 256 mV attain 10 mA cm-2 low Tafel slope value 95 dec-1. Moreover, self-assembled overall-water-splitting cell NPs@SN-CNP/NF||Pt-C/NF achieves potential 1.56 V at high cycling stability least h. improvement this benefit from its large surface area, unique morphology, nanostructure electrocatalyst. This study presents novel simple approach designing OER

Language: Английский

Citations

0
Rational design of transition metal-based heterostructure electrocatalysts for high-performance oxygen evolution reaction DOI
Guan Sheng,

Shuangyang Zhao,

Uzair Naeem

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 127, P. 717 - 736

Published: April 16, 2025

Language: Английский

Citations

0
Co (1 1 1) loaded on amorphous Co(OH)2 − derived porous Ni with maximized Co (1 1 1) utilization for hydrogen evolution reaction DOI
Yuan Shi,

Rongjiao Wang,

Shimin Liu

et al.

Fuel, Journal Year: 2025, Volume and Issue: 398, P. 135426 - 135426

Published: May 1, 2025

Language: Английский

Citations

0
Insight on the Ultrafast Water Treatment over NiFe-Layered Double Hydroxides via Electroactivation of Ferrate(VI): The Role of Spin State Regulation DOI Open Access

Xinyu Gai,

Ningxuan Xue,

Pengxiang Qiu

et al.

Water, Journal Year: 2025, Volume and Issue: 17(9), P. 1369 - 1369

Published: May 1, 2025

Ferrate (Fe(VI)), an emerging green oxidant and disinfectant in water treatment, faces challenges due to its limited reaction efficiency stemming from a highly electron-deficient state. To address this, we designed NiFe-Layered Double Hydroxides (NiFe-LDHs) with different spin states enhance electron transfer Fe(VI)-mediated advanced oxidation processes (AOPs). We hypothesized that fine-tuning the state of NiFe-LDHs could optimize balance between adsorption capabilities electronic structure regulation. Our experiments revealed intermediate-spin NiFeLDH-1, magnetic moment 0.67 μB, exhibited best catalytic performance, achieving 100% phenol removal. The NiFeLDH-x/Fe(VI) system demonstrated significant synergistic enhancement degradation efficiency. In addition, NiFeLDH-1 showed excellent performance stability continuous flow experiments. This study unveils novel correlation polarization efficiency, offering insights into optimization electrocatalysts for AOPs. findings suggest modulation is promising strategy electrocatalytic activity non-noble metal catalysts.

Language: Английский

Citations

0