Recent advances in electrochemiluminescence imaging analysis DOI Creative Commons

Chengda Meng,

Sara Knežević,

Fangxin Du

et al.

eScience, Journal Year: 2022, Volume and Issue: 2(6), P. 591 - 605

Published: Nov. 1, 2022

Electrochemiluminescence (ECL) has been widely applied in imaging owing to features that distinguish it from other microscopic techniques and electrochemical methods, including its high signal-to-noise ratio, remarkable sensitivity, wide linear range, spatiotemporal resolution, near-zero background light. Imaging technology based on ECL used the fields of immunosensing, pathological cell detection, drug analysis. Additionally, simple operation ability detect dynamic processes catalytic sites strengthen potential for research material surfaces interfaces, vivo biological analysis, visualization. At same time, emergence a variety nanomaterials new analysis equipment further promoted development high-resolution technology. This paper introduces mechanisms main systems. It then describes various forms reviews progress single-particle imaging, fingerprint structure single-cell imaging. Finally, authors offer their views about prospects

Language: Английский

Alloying of Cu with Ru Enabling the Relay Catalysis for Reduction of Nitrate to Ammonia DOI
Wensheng Gao, Kefeng Xie, Jin Xie

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(19)

Published: March 5, 2023

Involving eight electron transfer process and multiple intermediates of nitrate (NO3- ) reduction reaction leads to a sluggish kinetic low Faradaic efficiency, therefore, it is essential get an insight into the mechanism develop highly efficient electrocatalyst. Herein, series reduced-graphene-oxide-supported RuCu alloy catalysts (Rux Cux /rGO) are fabricated used for direct NO3- NH3 . It found that Ru1 Cu10 /rGO shows ammonia formation rate 0.38 mmol cm-2 h-1 (loading 1 mg efficiency 98% under ultralow potential -0.05 V versus Reversible Hydrogen Electode (RHE), which comparable Ru catalyst. The activity can be attributed synergetic effect between Cu sites via relay catalysis, in exclusively NO2- exhibits superior In addition, doping tunes d-band center effectively modulates adsorption energy , promotes This electrocatalysis strategy opens new avenue developing multifunctional catalysts.

Language: Английский

Citations

263
Recent advances in electrocatalytic ammonia synthesis DOI
Ling Ouyang, Jie Liang,

Yongsong Luo

et al.

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2023, Volume and Issue: 50, P. 6 - 44

Published: July 1, 2023

Language: Английский

Citations

184
High-Efficiency Electrochemical Nitrate Reduction to Ammonia on a Co3O4 Nanoarray Catalyst with Cobalt Vacancies DOI
Zhiqin Deng, Chaoqun Ma, Zerong Li

et al.

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(41), P. 46595 - 46602

Published: Oct. 5, 2022

Electrocatalytic nitrate reduction reaction (NO3RR) affords a bifunctional character in the carbon-free ammonia synthesis and remission of pollution water. Here, we fabricated Co3O4 nanosheet array with cobalt vacancies on carbon cloth (vCo-Co3O4/CC) by situ etching aluminum-doped Co3O4/CC, which exhibits an excellent Faradaic efficiency 97.2% large NH3 yield as high 517.5 μmol h-1 cm-2, better than pristine Co3O4/CC. Theoretical calculative results imply that can tune local electronic environment around Co sites Co3O4, increasing charge reducing electron cloud density sites, is thus conducive to adsorption NO3- for greatly enhanced reduction. Furthermore, vCo-Co3O4 (311) facet presents NO3RR activity low energy barrier about 0.63 eV potential-determining step, much smaller (1.3 eV).

Language: Английский

Citations

126
Plasma-etched Ti2O3with oxygen vacancies for enhanced NH3electrosynthesis and Zn–N2batteries DOI
Haijun Chen, Zhaoquan Xu, Shengjun Sun

et al.

Inorganic Chemistry Frontiers, Journal Year: 2022, Volume and Issue: 9(18), P. 4608 - 4613

Published: Jan. 1, 2022

Plasma-etched OV-Ti 2 O 3 behaves as an active and stable catalyst for electrochemical N reduction to yield NH , capable of attaining a large 37.24 μg h −1 mg cat. high faradaic efficiency 19.29%.

Language: Английский

Citations

116
Weakened d–p orbital hybridization inin situreconstructed Ru/β-Co(OH)2heterointerfaces for accelerated ammonia electrosynthesis from nitrates DOI

Weijie Zhu,

Fen Yao,

Qiongfei Wu

et al.

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(6), P. 2483 - 2493

Published: Jan. 1, 2023

Electron-deficient Ru sites at Ru/Co(OH) 2 heterointerfaces weaken the d–p orbital hybridization ability and further facilitate desorption of ammonia intermediates, thereby achieving ultrahigh nitrate electroreduction activity towards ammonia.

Language: Английский

Citations

107
Oxygen vacancies in Co3O4nanoarrays promote nitrate electroreduction for ammonia synthesis DOI
Xiang Xu,

Long Hu,

Zerong Li

et al.

Sustainable Energy & Fuels, Journal Year: 2022, Volume and Issue: 6(18), P. 4130 - 4136

Published: Jan. 1, 2022

Oxygen vacancy-enriched Co 3 O 4 nanosheet arrays enable ambient electrosynthesis of NH via nitrate reduction, achieving a faradaic efficiency 96.9% and yield 12 157 μg h −1 cm −2 in 0.1 M NaOH with NO − .

Language: Английский

Citations

104
Tuning Co‐Catalytic Sites in Hierarchical Porous N‐Doped Carbon for High‐Performance Rechargeable and Flexible Zn‐Air Battery DOI

Xinxin Shu,

Qianwu Chen,

Maomao Yang

et al.

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 13(1)

Published: Nov. 6, 2022

Abstract The strategy of heteroatom doping and metal active sites can synergistically promote oxygen electrocatalysis. Especially, the combination theoretical simulations with experimental results provides new opportunities to understand electrocatalytic mechanism. Herein, 3D carbon nanosheets aggregate highly branched nanotubes cobalt (CoCNTs/PNAs) is prepared via facile self‐assembly‐pyrolysis strategy. CoCNTs/PNAs electrocatalysts exhibit superior bifunctional activities reduction ( E 1/2 = 0.925 V) evolution j 10 1.54 reactions, surpassing those Pt/C‐RuO 2 catalysts. calculations reveal that electronic interaction nitrogen‐doped matrix plays a critical role in boosting performance. Additionally, rechargeable Zn‐Air battery (ZAB) assembled aqueous electrolyte exhibits largest power density 371.6 mW cm −2 outstanding cycling durability (over 2000 h). Furthermore, all‐solid‐state cable‐type ZAB delivers high flexibility good stability energy efficiency (76.5%). This work will open avenue adjust metal‐carbon support for functional electrocatalysis hierarchical porous structure design.

Language: Английский

Citations

101
Constructing Co@TiO2 Nanoarray Heterostructure with Schottky Contact for Selective Electrocatalytic Nitrate Reduction to Ammonia DOI

Xiaoya Fan,

Donglin Zhao, Zhiqin Deng

et al.

Small, Journal Year: 2023, Volume and Issue: 19(17)

Published: Jan. 30, 2023

Electrochemical nitrate (NO3- ) reduction reaction RR) is a potential sustainable route for large-scale ambient ammonia (NH3 synthesis and regulating the nitrogen cycle. However, as this involves multi-electron transfer steps, it urgently needs efficient electrocatalysts on promoting NH3 selectivity. Herein, rational design of Co nanoparticles anchored TiO2 nanobelt array titanium plate (Co@TiO2 /TP) presented high-efficiency electrocatalyst NO3- RR. Density theory calculations demonstrate that constructed Schottky heterostructures coupling metallic with semiconductor develop built-in electric field, which can accelerate rate determining step facilitate adsorption, ensuring selective conversion to . Expectantly, Co@TiO2 /TP attains an excellent Faradaic efficiency 96.7% high yield 800.0 µmol h-1 cm-2 under neutral solution. More importantly, heterostructure catalyst also presents remarkable stability in 50-h electrolysis test.

Language: Английский

Citations

101
High-efficiency electrocatalytic nitrite reduction toward ammonia synthesis on CoP@TiO2 nanoribbon array DOI Creative Commons
Xun He, Zixiao Li, Jie Yao

et al.

iScience, Journal Year: 2023, Volume and Issue: 26(7), P. 107100 - 107100

Published: June 16, 2023

Electrochemical reduction of nitrite (NO2-) can satisfy the necessity for NO2- contaminant removal and deliver a sustainable pathway ammonia (NH3) generation. Its practical application yet requires highly efficient electrocatalysts to boost NH3 yield Faradaic efficiency (FE). In this study, CoP nanoparticle-decorated TiO2 nanoribbon array on Ti plate (CoP@TiO2/TP) is verified as high-efficiency electrocatalyst selective NH3. When measured in 0.1 M NaOH with NO2-, freestanding CoP@TiO2/TP electrode delivers large 849.57 μmol h-1 cm-2 high FE 97.01% good stability. Remarkably, subsequently fabricated Zn-NO2- battery achieves power density 1.24 mW while delivering 714.40 μg cm-2.

Language: Английский

Citations

94
Ambient Electroreduction of Nitrite to Ammonia over Ni Nanoparticle Supported on Molasses-Derived Carbon Sheets DOI
Xun He, Xiuhong Li,

Xiaoya Fan

et al.

ACS Applied Nano Materials, Journal Year: 2022, Volume and Issue: 5(10), P. 14246 - 14250

Published: Oct. 5, 2022

Electrochemical nitrite (NO2–) reduction is a promising approach for ambient ammonia (NH3) synthesis and simultaneous mitigation of NO2– contaminant in wastewater. Herein, we report Ni nanoparticle supported on molasses-derived carbon sheets (Ni@MDC) as an earth-abundant electrocatalyst NO2–-to-NH3 conversion. When tested alkaline solutions with 0.1 M NO2–, such Ni@MDC obtains high NH3 yield 6.3 mg h–1 mgcat–1 Faradaic efficiency 65.4% at −0.8 V versus reversible hydrogen electrode under conditions. Furthermore, it shows remarkable electrochemical stability during long-term electrolysis cycling tests.

Language: Английский

Citations

78