The rational design of an efficient and inexpensive electrocatalyst based on earth-abundant 3d transition metals (TMs) for the hydrogen evolution reaction still remains a significant challenge in renewable energy area. Herein, novel effective approach is developed synthesizing ultrafine Co nanoparticles encapsulated nitrogen-doped carbon nanotubes (N-CNTs) grafted onto both sides reduced graphene oxide (rGO) (Co@N-CNTs@rGO) by direct annealing GO-wrapped core-shell bimetallic zeolite...

Abstract Construction of well‐defined metal–organic framework precursor is vital to derive highly efficient transition metal–carbon‐based electrocatalyst for hydrogen evolution reaction (HER) and oxygen (OER) in water splitting. Herein, a novel strategy involving an situ transformation ultrathin cobalt layered double hydroxide into 2D zeolitic imidazolate (ZIF‐67) nanosheets grafted with 3D ZIF‐67 polyhedra supported on the surface carbon cloth (2D/3D ZIF‐67@CC) proposed. After...

Abstract The conversion of crystalline metal–organic frameworks (MOFs) into metal compounds/carbon hybrid nanocomposites via pyrolysis provides a promising solution to design electrocatalysts for electrochemical water splitting. However, pyrolyzing MOFs generally involves complex high‐temperature treatment, which can destroy the coordinated surroundings within MOFs, and as result not taking their full advantage electrolysis properties. Herein, simple room‐temperature boronization strategy is...

Developing cost-effective and highly efficient bifunctional electrocatalysts for both hydrogen evolution reaction (HER) oxygen (OER) is of great interest overall water splitting but still remains a challenging issue. Herein, self-template route employed to fabricate unique hybrid composite constructed by encapsulating cobalt nitride (Co5.47N) nanoparticles within three-dimensional (3D) N-doped porous carbon (Co5.47N NP@N-PC) polyhedra, which can be served as active electrocatalyst. To afford...

2D nanofilms assembled by pure protein with a macroscopic area and multiple functions can be directly formed at the air/water interface or solid surface timescale of several minutes. The multifunctionality nanofilm coating is demonstrated both top-down bottom-up micro-/nanoscale interfacial engineering, including modification, all-water-based photo/electron-beam lithography, electroless deposition.

Abstract Engineering transition metal‐nitrogen‐carbon (TM‐N‐C) catalysts with high‐density accessible active sites and optimized electronic structure holds great promise in the context of electrochemical oxygen reduction reaction (ORR). Herein, a novel modification lysozyme‐modified zeolitic imidazolate framework isolated Co atoms anchored on dominated pyridinic‐N doped carbon (Co‐pyridinic N‐C) is reported. The atomically dispersed allows maximum site exposure while introduction pyridinic N...

A proteinaceous superhydrophobic material for facile protein crystallization is reported. The lysozyme phase transition rationally manipulated to form a reliable coating on virtually arbitrary surfaces with good thermostability and mechanical robustness. Such surface exhibits fascinating capability drive crystallization, the crystal array can be facilitated in large area at an ultralow concentration.

Abstract Exploring highly‐efficient and low‐cost electrodes for both hydrogen oxygen evolution reaction (HER OER) is of primary importance to economical water splitting. Herein, a series novel robust bifunctional boride‐based are successfully fabricated using versatile Et 2 NHBH 3 ‐involved electroless plating (EP) approach via deposition nonprecious catalysts on various substrates. Owing the unique binder‐free porous nodule structure induced by release EP reaction, most highly efficient...

Abstract A key factor for successful design of bioactive complex, organic–inorganic hybrid biomaterials is the facilitation and control adhesion at interfaces, as many current synthetic are inert, lacking interfacial bioactivity. In this regard, development a simple, unified way to biofunctionalize diverse organic inorganic materials toward biomineralization remains critical challenge. report, universal biomimetic mineralization route that can be applied virtually any type morphology...

Transition-metal dichalcogenides (TMDs) hold great potential as an advanced electrocatalyst for oxygen evolution reaction (OER), but to date the activity of transition metal telluride catalysts are demonstrated be poor this reaction. In study, we report activation CoTe2 OER by doping secondary anions into Te vacancies trigger a structural from hexagonal orthorhombic phase. The achieved with partial occupied P-doping exhibits exceptional catalytic overpotential only 241 mV at 10 mA cm-2 and...

The development of highly efficient catalysts for both the hydrogen evolution reaction (HER) and oxygen (OER) is paramount importance in water splitting. Herein, a phase-transited lysozyme (PTL) employed as platform to synthesize nitrogen-doped Co

Developing a multifunctional electrocatalyst with eminent activity, strong durability, and cheapness for the hydrogen/oxygen evolution reaction (HER/OER) oxygen reduction (ORR) is critical to overall water splitting regenerative fuel cells. Herein, nitrogen-doped nanonetwork assembled by porous defective NiCo2O4@C nanowires grown on nickel foam (N-NiCo2O4@C@NF) crafted via biomimetic mineralization following carbonization of phase-transited lysozyme (PTL)-coupled NiCo2O4. The as-obtained...

Construction of nanocomposites with tunable coupling effects to obtain the synergetic and optimal performance has been realized through annealing a Prussian blue analogue at controlled temperatures.

Abstract Exploring highly active but inexpensive electrocatalysts for the hydrogen evolution reaction (HER) is of critical importance production from electrochemical water splitting. Herein, we report a multicomponent catalyst with exceptional activity and durability HER, in which cobalt nanoparticles were in-situ confined inside bamboo-like carbon nanotubes (CNTs) while ultralow ruthenium loading (~ 2.6 µg per electrode area ~ cm −2 ) uniformly deposited on their exterior walls...

The practical application of lithium-sulfur batteries is severely hampered by the poor conductivity, polysulfide shuttle effect and sluggish reaction kinetics sulfur cathodes. Herein, a hierarchically porous three-dimension (3D) carbon architecture assembled cross-linked leaves with implanted atomic Co-N4 has been delicately developed as an advanced host through SiO2-mediated zeolitic imidazolate framework-L (ZIF-L) strategy. unique 3D architectures not only provide highly conductive network...

Abstract Efficient and affordable price bifunctional electrocatalysts based on transition metal oxides for oxygen hydrogen evolution reactions have a balanced efficiency, but it remains significant challenge to control their activity durability. Herein, trace Ru (0.74 wt.%) decorated ultrathin CoOOH nanosheets (≈4 nm) supported the surface of nickel foam (Ru/CoOOH@NF) is rationally designed via an electrochemically induced strategy effectively drive electrolysis alkaline overall water...

In article number 1803918, Renbing Wu and co-workers report an easily-manipulated pseudomorphic replication approach to synthesize 2D ZIF-67 nanosheets grafted with 3D polyhedra architecture on the surface of carbon cloth (CC). After a pyrolysis process, 2D/3D ZIF-67@CC can be further converted into electrocatalyst that consists cobalt nanoparticles embedded within both hollow polyhedra, exhibiting excellent overall water-splitting performance.

The exploration of metal–organic frameworks (MOFs) with good biocompatibility and physiological stability as carrier platforms for biomedical applications is great importance but remains challenging. Herein, we developed an in situ biomimetic mineralization strategy on zeolitic imidazolate framework (ZIF) nanocrystals to construct a drug release system favorable cytocompatibility, improved stability, pH responsiveness. With lysozyme (Lys) wrapped the surface Zn-based ZIF (ZIF-8), Lys/ZIF-8...

Water electrolysis is a green technology for hydrogen fuel production, but greatly hampered by the slow kinetics of anodic oxygen evolution reaction (OER) and cathodic (HER). In this work, we report an efficient strategy to simultaneously promote OER HER performance on Co3O4 hexagonal nanosheets via Fe-doping-induced cation substitution anion vacancies. Benefiting from integrated advantages well-defined ultrathin nanosheets, abundant vacancies, unique three-dimensional electrode...

As a sustainable and widely available source of clean energy, solar energy has great potential for solving the aforementioned issues. Nanofluids (NFs)‐based direct absorption collectors can convert into thermal which been applied in energy‐thermal conversion wastewater purification. However, low photothermal modulation efficiency NFs limits industrialization collectors. Herein, Fe 3 O 4 @Au composite structure is constructed using coprecipitation method. The effect different parameters, such...