Dianzeng Jia

Xin Jiang University · Institute of Applied Chemistry

The capacitive properties of supercapacitors highly rely on the reasonable design of high‐performance electrode materials. Herein, a synergetic strategy of pre‐oxidation and pre‐carbonization is proposed to prepare coal tar pitch (CTP) based porous carbon. The formation mechanism of porous carbon is revealed. Pre‐oxidation increases the heteroatom...

The active electrolyte enhanced supercapacitors (AEESCs) are highly praised for their high specific capacitance and energy density. However, the practical application of AEESCs are hindered large potential decay and leakage...

Silicon (Si) is regarded as the most potential anode material for next‐generation lithium‐ion batteries (LIBs). However, huge volume expansion hinders its commercial application. Here, a yolk‐shell structural nitrogen‐doped carbon coated Si@SiO2 is prepared by SiO2 template and HF etching method. The as‐prepared composite exhibits superior cycling...

The high catalytic activity and specificity of enzymes can be used to pretreat biomass. Herein, the resourceful, reproducible, cheap, and crude protein-rich cottonseed meal (CM) is selected as a precursor and the protease in the K2CO3–KHCO3 buffer solution is used as the enzyme degradation substance to pretreat CM. The crude protein content is sign...

Zn–air battery (ZAB) is advocated as a more viable option in the new‐energy technology. However, the limited‐output capacity at a high current density impedes the driving range in power batteries substantially. Here, a novel heterojunction‐based graphdiyne (GDY) and Ag29Cu7 alloy quantum dots (Ag29Cu7 QDs/GDY) for constructing a high‐performance aq...

The growth of Na‐dendrites and the dissolution of organic cathodes are two major challenges that hinder the development of sodium‐organic batteries (SOBs). Herein, a multifunctional Janus separator (h‐BN@PP@C) by using an interfacial engineering strategy, is proposed to tackle the issues of SOBs. The carbon layer facing the organic cathode serves a...

Porous carbon is widely used in energy storage‐conversion systems, and the question of how to explore an efficient strategy for preparation is very significant. Herein, the flame retardant capability of (NH4)2SO4/Mg(OH)2 that contains gas phase‐heat absorption‐condensate phase components is assisted to carbonize coal tar pitch in air and obtain the...

The inherent slow diffusion dynamics of aqueous zinc‐ion batteries (AZIBs) act as a significant hindrance to their universal utilization as energy storage systems, largely attributed to the scarcity of superior cathode materials. In this study, a novel method that amalgamates oxygen defect engineering and polymer intercalation, guided by theoretica...

In this work, Qiqunahu (QQH) coal, cotton stalk, cellulose and lignin extracted from cotton stalk were selected as raw materials to study the effects of the co-pyrolysis of coal and cotton stalk. Online thermogravimetric mass spectrometry (TG-MS) was used to analyse mass loss and gas release characteristics during co-pyrolysis. The results reveal t...

It is very important to develop transition metal-based electrocatalysts with excellent activity, high stability and low-cost for overall water splitting. In this work, the Fe-doped NixSy/NF amorphous/crystalline heterostructure nanoarrays (Fe-NixSy/NF) was synthesized by a simple one-step method. The resulting hierarchically structured nanoarrays o...

Aqueous zinc ion batteries (AZIBs) have attracted attention as a promising candidate for secondary battery energy storage due to their safety and environmental benefits. However, the vanadium‐based cathode material NH4V4O10 has the problem of structural instability. In this paper, it is found by density functional theory calculation that excessive...

Porous carbon, one of the characteristic materials for electrochemical energy storage devices, has been paid wide-ranging attention. However, balancing the reconcilable mesopore volume with a large specific surface area (SSA) was still a challenge. Herein, a dual-salt-induced activation strategy was developed to obtain a porous carbon sheet with ul...

Nickel‐iron based hydroxides have been proven to be excellent oxygen evolution reaction (OER) electrocatalysts, whereas they are inactive toward hydrogen evolution reaction (HER), which severely limits their large‐scale applications in electrochemical water splitting. Herein, a heterostructure consisted of NiFeV hydroxide and iron oxide supported o...

Aqueous Zn-ion battery is expected to become a substitute for Li-ion battery due to its inherent safety, low cost, and environmental friendliness. Dendrite growth and side reaction problems during electroplating lead to its low Coulombic efficiency and unsatisfactory life, which greatly limits its practical application. Here, we propose a dual-salt...

The surface properties and the hierarchical pore structure of carbon materials are important for their actual application in supercapacitors. It is important to pursue an integrated approach that is both easy and cost-effective but also challenging. Herein, coal-based hierarchical porous carbon with nitrogen doping was prepared by a simple dual tem...

Porous carbons have been widely applied for capacitive energy storage, yet usually suffer from insufficient rate performance because of the sluggish ion transport kinetics in deep and multi-branched pores. Herein, we fabricated an interconnected microporous capacitive carbon (IMCC) by growing D (+)-glucosamine on bacterial cellulose (BC) nanofibers...

The structural defects and oxygen-containing functional groups of carbon materials as electrode materials for supercapacitors or capacitive deionization devices are critical to their electrochemical performance. The tuning of surface oxygen-containing functional groups and carbon defects during pyrolysis is key to achieve a high performance in ion...

Coal-derived porous carbon with a large specific surface area is a common electrode material for supercapacitors. Its deep and branched micropores, dense bulk morphology and amorphous structure have greatly limited its practical applications. Herein, hybrid carbon materials were obtained from coal through oxidation followed by activation. The metho...

Reduced graphdiyne oxide/NiCo2S4 hierarchical nanosheet array (r-GDYO/NiCo2S4) electrodes are successfully synthesized by electrodeposition and hydrothermal method. The r-GDYO/NiCo2S4 electrode has high capacity, high rate and high stability. At 30 mA cm⁻², the area-specific capacity is 3.09 F cm⁻², and the capacitance retention rate is 93.10% afte...

As one of the most promising cathodes for rechargeable sodium-ion batteries (SIBs), Layered transition metal oxides with high energy density show poor cycling stability. Judicious design/construction of electrode materials plays a very important role in cycling performance. Herein, a P2-Na0.7MnO2.05 cathode material with hierarchical book-like morp...

The porous structure and specific surface area (SSA) of porous carbon are important factors affecting the performance of supercapacitors. However, it is still a great challenge to leverage the tradeoff between the SSA and mesopores to achieve both excellent capacitive and rate performance. Herein, we develop a facile pore- regulating strategy to in...

Graphdiyne (GDY) is fascinating in the construction of efficient and stable catalysts, but their performance is still somewhat restricted due to GDY’s thicker layers, as well as hydrophobic and relatively chemically inert surfaces. Herein, via oxidation-exfoliation-reduction strategy, the self-supported electrode material of CoP nanosheets with ult...

Aqueous zinc ion batteries are a promising alternative secondary battery technology due to their excellent safety and environmental friendliness. Vanadium‐based compounds as a highly promising class of cathode materials still suffer from structural collapse and slow kinetics. Studies have shown that metal ion pre‐introduction is an effective method...

The rational design of photocatalysts with more negative potentials of the conduction band is of vital importance in improving the performance of photocatalysts for reduction reactions. In this work, highly crystalline and uniform (Bi19S27I3)0.6667 nanorods were firstly synthesized by a one‐step hydrothermal process. The formation of the (Bi19S27I3...

The development of advanced coal-based functional nanomaterials is of great significance for clean and effective utilization of coal resources. Herein, we report novel coal-based ultra-fine carbon nanosheets (UCNSs) prepared by chemical oxidation of bituminous coal with a high yield of 40.0 wt%. UCNSs show a lamellar size of 10–20 nm, mainly compos...

Na3V2(PO4)2F3 is one of the most studied polyanion type cathode materials for sodium-ion batteries (SIBs) and offers great promises. However, the inferior rate capability induced by its sluggish diffusion of electrons and ions greatly limits the practical application of electrode materials in SIBs. Herein, we develop an efficient method to fabricat...

With the increase in environmental protection requirements, the oil in the wastewater from offshore oil wells or industries has to be removed with high-precision before discharge. However, the oil-in-water emulsion with high stability is intractable, which makes the oil removal a great challenge. Herein, we designed a novel approach to fabricate ca...

Transition metal oxides (TMOs) hold great potential for lithium-ion batteries (LIBs) on account of the high theoretical capacity. Unfortunately, the unfavorable volume expansion and low intrinsic electronic conductivity of TMOs lead to irreversible structural degradation, disordered particle agglomeration, and sluggish electrochemical reaction kine...

Effective utilization of the solid-waste coal liquefaction residue (CLR) is important for the development of direct coal liquefaction technology, but remains big challenge due to the high ash of about 30 wt% in CLR. Herein, we propose a mild oxidation method to prepare functional carbon dots (CDs) using CLR as the carbon precursor and piranha solut...

Synergistic electronic modulations is an effective strategy to develop efficient and stable electrocatalysts for the electrochemical hydrogen production via water splitting. Herein, tremella‐like Ni3S2@RuO2 and Ni3S2@NiFeOOH heterostructures catalysts are constructed on Ni foams (NF) by coupling RuO2 and NiFeOOH on Ni3S2 nanoflake arrays. The resul...

Metal-organic frameworks (MOFs) have emerged as promising precursors to prepare porous carbons due to their unique coordination structure with abundant pores and various chemical compositions. However, the structural collapse and pore shrinkage during pyrolysis severely decrease the surface area of the prepared porous carbons. Herein, we propose an...

Constructing heterostructures with rich-interface by the interfacial electron modulating is the key to integrating the rich functionalities for elcetrocatalysis. Herein, heterogeneous structural Co2P/CoP hollow nanospheres embedded in N-doped carbon nanotubes (Co2P/[email protected]@NCNT) to form a rich-interface catalyst is fabricated by a control...

The edge sites of carbon show high electrochemical activity because of the unique electronic structure and functionalization. But revealing their energy storage ability and the underlying mechanism are still challenging. Herein, we prepare a novel edge-enriched carbon nanofiber fabric by exposing the embedded graphene quantum dots (GQDs) through pa...

Preparing activated carbon with high volumetric performance in organic electrolyte is crucial for developing high-energy and miniaturized supercapacitors, but still challenging because high surface area and large pore size are required to effectively store large-sized organic electrolyte ions, which usually result in the low density. Herein, an ult...

The microporous carbon with large surface area is widely used in supercapacitors. However, the sluggish ion transport kinetics drastically hampers the practical application. Herein, an efficient in-situ expansion strategy for the preparation of hierarchically structured mesoporous carbon is developed by the pyrolysis of sodium lignosulfonate with H...

Activate electrolyte enhanced supercapacitors (AEESCs) are considered as promising tools for power capacity due to their high specific capacitance and simple creation form. However, there are many challenges, such as...

Solar-driven interfacial steam generation (SISG) has received increasing attention due to its continuous clean water generation under sunlight irradiation with high photothermal conversion efficiency. However, the inevitable waste of solar thermal energy and the poor adaptability of the photothermal material severely restrict its practical applicat...

NASICON-type Na3V2(PO4)2F3 is considered as one of the most promising cathodes for sodium-ion batteries due to its high operating potential, fast ion transport and superior structural stability. However, its poor rate capability and insufficient cyclability hinder its future practical applications. Herein, a hybrid of Na3V2(PO4)2F3 nanoparticles fi...

Pseudocapacitance, which is a rapid faradaic surface redox reaction and charges storage to offer high power density for electrochemical applications. Herein, adjusting the molar ratio of Fe: Mo, a series of Fe2Mo3O8 composites were designed and synthesized through wet assisted-high temperature calcination process for lithium storage and used as a t...

As a pseudocapacitive material, layered MoO3 has attracted extensive attention for its excellent ion storage capacity. However, the low conductivity and irreversible phase transition make its capacity decrease rapidly during the charging and discharging process, which seriously limits the application in the field of supercapacitors. This study obta...

This work demonstrated the development of a hierarchical porous carbon-carbon composite used as an electrode material for capacitive deionization. The novel core-shell composite consisting of carbon nanofibers and N-rich porous carbon nanosheets (CNFZIF) was obtained byin situgrowth of zeolitic imidazolate framework-8 (ZIF-8) nanosheets on electros...

Rational design and synthesis of transition-metal-oxides-based bifunctional catalysts with excellent activity and stability remain a challenge for efficient water splitting. Herein, integrating the active components of oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) into novel inter-doped ruthenium-nickel oxide [(Ru-Ni)Ox] het...

The highly efficient piezocatalysts of Ag decorated ZnO nanocrystals (Ag-ZnO) have been designed and synthesized. Remarkably, piezocatalytic activity of Ag-ZnO depends on Ag concentrations. The piezocatalyst with suitable amount of 15% Ag-ZnO presents excellent piezocatalytic activity towards methylene orange (MO) organic dye degradation under ultr...

Electrochemical water splitting has been highly considered as a promising technology to produce hydrogen with high purity and large quantity. Herein, a cage-confinement strategy is proposed to encapsulate H3PMo12O40 clusters into cavities of ZIF-67. The ZIF-67 with cavity diameter of 1.16 nm and cavity window of 0.34 nm can appropriately confine H3...

The shuttle effect derived from the dissolution of lithium polysulfides (LIPs) seriously hinders commercialization of lithium-sulfur (Li-S) batteries. Hence, we skillfully designed 1D cowpea-like CNTs@Bi composites with a double adsorption structure, where the bismuth nanoparticles/nanorods are encapsulated in the cavities of CNTs, avoiding the agg...

The design of a direct Z-scheme system heterostructure that can achieve an effective charge separation is highly desirable for photocatalysis. Herein, Bi.333(Bi6S9)Br/Bi2S3 heterostructure nanorods were synthesized by a facile hydrothermal method, and the photocatalytic reduction of Cr (VI) under visible light irradiation was conducted to evaluate...

The assembly of powdered materials into freestanding electrodes can avoid the usage of metallic current collectors and thus reduce the weight and cost of devices. In this work, we prepared robust, binder-free freestanding membrane electrodes consisting of a three-dimensional network of bacterial cellulose (BC) with acetylene black and activated car...

Carbon‐supported metal nanocatalysts have received substantial attention for heterogeneous catalysis in industry. Hunting for suitable and impactful carbon supports that have strong interactions with metal nanocatalyst is a matter of great urgency. Herein, a well‐designed graphdiyne layer decorated on the carbon nanotubes sidewalls (CNT@GDY) serves...

The multiple nanoarchitecture of hybrids integrated hydroxides with metal organic framework (MOF) is a new type of promising electrocatalysts for oxygen evolution reaction (OER). However, most of these catalysts have the poor electrical conductivity and superhydrophobicity which seriously restrict their practical applications. In this paper, an ami...

A major challenge facing organic rechargeable batteries is the problem of the dissolution and shuttle effect of organic cathodes in aprotic electrolytes, resulting in limited capacity, low cyclability and poor rate performance. Herein, a functional polypropylene separator coated with Ketjen black ([email protected]) was introduced to tackle the shu...

Suffering from the competitive relationship between the abundant electrochemically active sites and the fast ion transfer channel, it still faces tremendous challenges in simultaneously designing and preparing biomass‐derived carbons with excellent capacitive and rate performance. Herein, a dual‐activation strategy of KOH and KMnO4 is used to prepa...

Developing new sodium‐ion battery (SIB) cathode materials with low cost and high capacity remains a challenge. Here, NaVSi2O6 was successfully synthesized by a simple sol‐gel method for the first time. This material was used as a new SIB cathode material. At a current density of 20 mA g−1, the first discharge specific capacity is 80 mA h g−1, which...

Earth-abundant sodium is a promising alternative to lithium in rechargeable batteries. However, graphite, the commercial anode material of lithium-ion batteries, cannot be used for sodium-ion batteries (SIBs). Herein, carbon block anodes with columnar nanopores constructed from amine-functionalized carbon nanosheets were synthesized using modified...

Developing efficient alkaline hydrogen evolution reaction (HER) electrocatalysts remain a critical challenge for the realization of large-scale hydrogen production from water splitting, while the high energy barrier of the Volmer-step considerably impedes the catalytic activity in water-alkali electrolyzers. Herein, a novel Ru-doped hierarchical fl...

Although porous carbons have been widely used for capacitive deionization, the low accessible surface area because of the hydrophobic microporous structure results in unsatisfied desalination capacity, which drastically hinders their practical application. Herein, a novel carbon nanofiber fabric with a large accessible surface area was prepared by...

In recent years, sodium ion batteries (SIBs) have become a research hotspot with their unique advantages, and are expected to become the next generation of commercially available energy storage devices. Due to high theoretical specific capacity, stable structure and low cost, the polyanionic orthosilicate compounds Na2MSiO4 (M = Fe, Mn, Co and Ni)...

Commercial graphite with low theoretical capacity cannot meet the ever-increasing requirement demands of lithium-ion batteries (LIBs) caused by the rapid development of electric devices. Rationally designed carbon-based nanomaterials can provide a wide range of possibilities to meet the growing requirements of energy storage. Hence, the porous waln...

A novel color tunable phosphor was developed by a high-temperature solid-state reaction route with apatite-type Ca8NaGd(PO4)6F2 (CNGF) as matrix for the doping with Ce³⁺ and Tb³⁺ ions. The crystal structures were studied by XRD and Rietveld refinement, which clarified the structural parameters and the occupation of doped ions in crystal lattice. Th...

Low-cost, high-efficiency, and non-noble metal electrocatalysts are greatly urgent for sustainable energy conversion technologies with CO2-free emission, but these are challenging to construct. Herein, we demonstrate a novel cobaltic-formate frameworks (Co-FFs)-induced strategy to obtain porous flowerlike CoP/CoP2 composite threaded with carbon nan...

Structural and interface engineering enable the optimization of electrocatalysts in terms of both activity and durability. Herein, the three-dimensional (3D) architecture graphdiyne nanowall (GDY) serving as scaffolds anchor metal cations to form the NiFe layered double hydroxide (LDH) nanodots/graphdiyne (NiFe ND/GDY) heterojunction electrocatalys...

Hard carbon has been considered as a promising anode material for sodium ion batteries (SIBs), while suffers from poor rate performance and some safety issues caused by irreversible or undesirable sodium plating. Heteroatom doping is an effective strategy to further improve the electrochemical performance of hard carbon. Herein, biomass oak seeds a...

Ag/CdS composites were prepared by low-temperature solid-phase chemical reaction with the aid of sodium borohydride, and the effects of Ag content and surfactant sodium dodecyl sulfate on the composition, structure and catalytic activity of the composites were investigated. The photocatalytic results show that the composites AGCS-0.5 displays the h...

Due to the slow charge separation and low efficiency of surface reactive site, developing efficient catalysts to achieve the conversion of toxic Cr (VI) to non-toxic Cr (III) faces huge challenges. Herein, a synthesis route by involving homojunction and surface defects is employed to design defect-rich Cl-doped Bi2S3 homojunction nanorods, which co...

Doping heteroatoms especially nitrogen is widely applied for improving the capacitive energy storage performance of carbon materials. However, preserving nitrogen in carbon skeleton is still challenging because nitrogen species are unstable at high temperature. Herein, we develop a simple boric acid-assisted method for trapping nitrogen into carbon...

An innovative and controlled strategy has been proposed to design tin disulfide (SnS2) nanosheet coating on nanostructure hollow sphere of ternary spinel sulfide (NiCo2S4) composites smart architecture as anodes (NiCo2S4/SnS2) for lithium-ion batteries (LIBs) by a facile template-free hydrothermal method. The NiCo2S4/SnS2 electrode showed good elec...

The rational design of composition and structure of the photocatalytic materials is especially critical for the practical application of photocatalytic technology. Herein, uniform single-crystal Bi.333(Bi6S9)Br nanorods were synthesized for the first time using a one-pot hydrothermal method. By prolonging the hydrothermal reaction time, the evoluti...

Achieving high rate capability of porous carbon at high mass loading is important for developing advanced supercapacitors. But it still remains a big challenge because thick electrode causes severely reduced electric conductivity and blocked ion migration channels. Herein, we develop a micelle-induced assembly method to prepare conductive porous ca...