Control of molecular conductance by pH

Wu, Bangyao; Guo, Wei; An, J.M.; Li, Haixing

doi:10.1039/d2tc01140a

Cited by 7 publications

(7 citation statements)

References 83 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is necessary to develop strategies to enhance the nucleation and prevent the growth or agglomeration of large particles during synthesis, as discussed, e.g., in a recent topical review. [ 120 ] Alternative approaches to controlling the grain sizes may include low‐temperature post‐treatment, porous‐electrode templating [ 121 ] or mechanochemical synthesis. [ 122 ] 2)Developing mild but high‐yield synthesis: Non‐noble TMOs are desirable as alternatives for precious metal Ru‐/Ir‐based oxides due to low cost of chemical resource.…”

Section: Discussionmentioning

confidence: 99%

High‐Valence Oxides for High Performance Oxygen Evolution Electrocatalysis

Wang

Zhai

et al. 2023

Advanced Science

View full text Add to dashboard Cite

Valence tuning of transition metal oxides is an effective approach to design high-performance catalysts, particularly for the oxygen evolution reaction (OER) that underpins solar/electric water splitting and metal-air batteries. Recently, high-valence oxides (HVOs) are reported to show superior OER performance, in association with the fundamental dynamics of charge transfer and the evolution of the intermediates. Particularly considered are the adsorbate evolution mechanism (AEM) and the lattice oxygen-mediated mechanism (LOM). High-valence states enhance the OER performance mainly by optimizing the e g -orbital filling, promoting the charge transfer between the metal d band and oxygen p band. Moreover, HVOs usually show an elevated O 2p band, which triggers the lattice oxygen as the redox center and enacts the efficient LOM pathway to break the "scaling" limitation of AEM. In addition, oxygen vacancies, induced by the overall charge-neutrality, also promote the direct oxygen coupling in LOM. However, the synthesis of HVOs suffers from relatively large thermodynamic barrier, which makes their preparation difficult. Hence, the synthesis strategies of the HVOs are discussed to guide further design of the HVO electrocatalysts. Finally, further challenges and perspectives are outlined for potential applications in energy conversion and storage.

show abstract

Section: Discussionmentioning

confidence: 99%

High‐Valence Oxides for High Performance Oxygen Evolution Electrocatalysis

Wang

Zhai

et al. 2023

Advanced Science

View full text Add to dashboard Cite

show abstract

“…Catalyst Synthesis : The NiFe LDH/Vulcan was synthesized through a one‐step hydrothermal method [26,28] . 0.6 mmol nickel sulfate, 0.3 mmol ferrous sulfate, 0.06 mmol trisodium citrate and 1.6 mmol urea were dissolved in 10 mL Milli‐Q water.…”

Section: Methodsmentioning

confidence: 99%

Enhanced Nitrite Electrovalorization to Ammonia by a NiFe Layered Double Hydroxide

Wang

Tse

2022

Eur J Inorg Chem

View full text Add to dashboard Cite

The development of non-precious metal (NPM) electrocatalysts for efficient nitrite-to-ammonia upcycling is key to enabling a sustainable society. Here, an earth-abundant NiFe layered double hydroxide (LDH) is prepared to electrochemically reduce nitrite with a Faradaic efficiency as high as 85 %, an ammonia selectivity reaching 98 %, and an ammonia yield rate up to 351 μmol h À 1 mg cat À 1 , rivaling the performance metrics of stateof-the-art NPM catalysts. NiFe LDH further displays excellent stability after 10 consecutive electrolysis runs with its nanostructure unperturbed. By conducting electroreduction of nitrite in a range of solutions, the electrolyte identity is found to play an important role in dictating the overall nitrite removal activity. Through a comparative study with MgFe and NiAl inorganic solids, Ni and Fe are demonstrated to boost nitrite valorization rate as well as ammonia selectivity and yield in a synergistic manner. Taken together, these low-cost catalysts provide a promising strategy for one-step conversion of nitrite into ammonia exclusively with implications in next-generation wastewater treatment and green industrial commodity production.

show abstract

“…Once the self-assembled structure is created, the changes in environmental conditions may cause consequences for the assembling outcomes. [105][106][107][108][109] Recently, it has been reported that stimulus of external conditions allows supramolecules to grow a second layer on top of the already-grown monolayer. An interesting example is the TPTC bilayer selectively grown by an annealing treatment for 1 min at the nonanoic acid/ HOPG interface.…”

Section: Benzene Carboxylic Acidsmentioning

confidence: 99%

A Paradigm Shift from 2D to 3D: Surface Supramolecular Assemblies and Their Electronic Properties Explored by Scanning Tunneling Microscopy and Spectroscopy

Xie

Lee

2023

Small

View full text Add to dashboard Cite

Exploring supramolecular architectures at surfaces plays an increasingly important role in contemporary science, especially for molecular electronics. A paradigm of research interest in this context is shifting from 2D to 3D that is expanding from monolayer, bilayers, to multilayers. Taking advantage of its high‐resolution insight into monolayers and a few layers, scanning tunneling microscopy/spectroscopy (STM/STS) turns out a powerful tool for analyzing such thin films on a solid surface. This review summarizes the representative efforts of STM/STS studies of layered supramolecular assemblies and their unique electronic properties, especially at the liquid–solid interface. The superiority of the 3D molecular networks at surfaces is elucidated and an outlook on the challenges that still lie ahead is provided. This review not only highlights the profound progress in 3D supramolecular assemblies but also provides researchers with unusual concepts to design surface supramolecular structures with increasing complexity and desired functionality.

show abstract

Control of molecular conductance by pH

Abstract: pH plays a fundamental role in regulating various processes occurring in ecosystems, biological organisms, and chemistry laboratories, and lately, has been observed to drastically impact material electronic properties at the...

Cited by 7 publications

References 83 publications

High‐Valence Oxides for High Performance Oxygen Evolution Electrocatalysis

High‐Valence Oxides for High Performance Oxygen Evolution Electrocatalysis

Enhanced Nitrite Electrovalorization to Ammonia by a NiFe Layered Double Hydroxide

A Paradigm Shift from 2D to 3D: Surface Supramolecular Assemblies and Their Electronic Properties Explored by Scanning Tunneling Microscopy and Spectroscopy

Contact Info

Product

Resources

About